fp: Make players unable to collide with each other

.gitignore

@@ -1,3 +1,4 @@
 Build/
 Nocheckin/
 feely_pona_build.exe
+feely_pona_version.txt

build.bat

@@ -6,6 +6,11 @@ set script_dir=%script_dir_backslash:~0,-1%
 set build_dir=%script_dir%\Build
 set code_dir=%script_dir%
 
+REM Bootstrap a version
+git show -s --date=format:%%Y-%%m-%%d --format=%%cd HEAD> feely_pona_version.txt
+git rev-parse --short=8 HEAD>> feely_pona_version.txt
+git rev-list --count HEAD>> feely_pona_version.txt
+
 REM Bootstrap the build program
 mkdir %build_dir% 2>nul
 pushd %build_dir%

feely_pona.h

@@ -52,6 +52,7 @@ struct FP_GlobalAnimations
     Dqn_String8 heart                 = DQN_STRING8("heart");
     Dqn_String8 heart_bleed           = DQN_STRING8("heart_bleed");
 
+    Dqn_String8 icon_attack           = DQN_STRING8("icon_attack");
     Dqn_String8 icon_health           = DQN_STRING8("icon_health");
     Dqn_String8 icon_money            = DQN_STRING8("icon_money");
     Dqn_String8 icon_phone            = DQN_STRING8("icon_phone");

feely_pona_build.cpp

@@ -465,11 +465,53 @@ int main(int argc, char const **argv)
             }
         }
 
-        // NOTE: feely pona emscripten =================================================================
+        // NOTE: feely pona emscripten =============================================================
         {
             feely_pona_emscripten_timings[0]             = Dqn_OS_PerfCounterNow();
             DQN_DEFER { feely_pona_emscripten_timings[1] = Dqn_OS_PerfCounterNow(); };
 
+            // NOTE: feely pona emscripten shell =======================================================
+            Dqn_String8 html_shell_path = Dqn_FsPath_ConvertF(scratch.arena, "%.*s/feely_pona_emscripten_shell.html", DQN_STRING_FMT(build_dir));
+            {
+                Dqn_String8 html_path   = Dqn_FsPath_ConvertF(scratch.arena, "%.*s/feely_pona_emscripten_shell.html", DQN_STRING_FMT(code_dir));
+                Dqn_String8 html_buffer = Dqn_Fs_Read(html_path, scratch.allocator);
+                if (!DQN_CHECKF(html_buffer.size,
+                                "Failed to read Emscripten HTML shell file. The file at\n\n  '%.*s'\n\ndoes not exist or is not readable",
+                                DQN_STRING_FMT(html_path)))
+                    return -1;
+
+                Dqn_String8                 version_path   = Dqn_FsPath_ConvertF(scratch.arena, "%.*s/feely_pona_version.txt", DQN_STRING_FMT(code_dir));
+                Dqn_String8                 version_buffer = Dqn_Fs_Read(version_path, scratch.allocator);
+                Dqn_String8SplitAllocResult version_parts  = Dqn_String8_SplitAlloc(scratch.allocator, version_buffer, DQN_STRING8("\n"));
+
+                if (!DQN_CHECKF(version_parts.size == 3,
+                                "Version file '%.*s' must have 3 lines containing, date, commit hash and number of commits. The buffer we tried extracting information from was\n\n%.*s\n\n",
+                                DQN_STRING_FMT(version_path),
+                                DQN_STRING_FMT(version_buffer))) {
+                    return -1;
+                }
+
+                Dqn_String8 date         = Dqn_String8_TrimWhitespaceAround(version_parts.data[0]);
+                Dqn_String8 commit_hash  = Dqn_String8_TrimWhitespaceAround(version_parts.data[1]);
+                Dqn_String8 commit_count = Dqn_String8_TrimWhitespaceAround(version_parts.data[2]);
+                Dqn_String8 version_text = Dqn_String8_InitF(scratch.allocator,
+                                                             "%.*s edition rev. %.*s-%.*s",
+                                                             DQN_STRING_FMT(date),
+                                                             DQN_STRING_FMT(commit_count),
+                                                             DQN_STRING_FMT(commit_hash));
+
+                Dqn_String8 html_buffer_processed = Dqn_String8_Replace(html_buffer,
+                                                                        DQN_STRING8("@version@"),
+                                                                        version_text,
+                                                                        0 /*start_index*/,
+                                                                        scratch.allocator);
+                if (!DQN_CHECKF(Dqn_Fs_Write(html_shell_path,
+                                            html_buffer_processed),
+                                "Failed to write Emscripten HTML shell with the project version inserted into it. We were unable to write to the target location\n\n  '%.*s'\n",
+                                DQN_STRING_FMT(html_shell_path)))
+                    return -1;
+            }
+
             // NOTE: Compile with emcc =============================================================
             Dqn_CPPBuildContext build_context     = {};
             build_context.compile_file_obj_suffix = DQN_CPP_BUILD_OBJ_SUFFIX_O;
@@ -482,7 +524,7 @@ int main(int argc, char const **argv)
                 DQN_STRING8("cmd"), DQN_STRING8("/C"), DQN_STRING8("emcc.bat"),
                 DQN_STRING8("-o"), Dqn_String8_InitF(scratch.allocator, "%.*s.html", DQN_STRING_FMT(output_name)),
                 DQN_STRING8("-Wall"),
-                DQN_STRING8("--shell-file"), Dqn_FsPath_ConvertF(scratch.arena, "%.*s/feely_pona_emscripten_shell.html", DQN_STRING_FMT(code_dir)),
+                DQN_STRING8("--shell-file"), html_shell_path,
                 Dqn_FsPath_ConvertF(scratch.arena, "%.*s/%.*s", DQN_STRING_FMT(build_dir), DQN_STRING_FMT(raylib_emscripten_lib_name)),
                 DQN_STRING8("-s"), DQN_STRING8("USE_GLFW=3"),
                 DQN_STRING8("-s"), DQN_STRING8("TOTAL_MEMORY=512MB"),

feely_pona_emscripten_shell.html

@@ -19,10 +19,14 @@
       }
 
       #header {
+        font-weight: bold;
+        color: white;
         height: 30px;
+        text-align: center;
         padding-left: 5px;
         padding-right: 5px;
         padding-top: 5px;
+        padding-bottom: 10px;
       }
 
       .emscripten { padding-right: 0; margin-left: auto; margin-right: auto; display: block; }
@@ -37,47 +41,12 @@
         width: 75vw;
       }
 
-      .spinner {
-        height: 15px;
-        width: 15px;
-        margin: 0;
-        display: inline-block;
-        vertical-align: top;
-        -webkit-animation: rotation .8s linear infinite;
-        -moz-animation: rotation .8s linear infinite;
-        -o-animation: rotation .8s linear infinite;
-        animation: rotation 0.8s linear infinite;
-        border-left: 5px solid black;
-        border-right: 5px solid black;
-        border-bottom: 5px solid black;
-        border-top: 5px solid red;
-        border-radius: 100%;
-        background-color: rgb(245, 245, 245);
-      }
-      @-webkit-keyframes rotation {
-        from {-webkit-transform: rotate(0deg);}
-        to {-webkit-transform: rotate(360deg);}
-      }
-      @-moz-keyframes rotation {
-        from {-moz-transform: rotate(0deg);}
-        to {-moz-transform: rotate(360deg);}
-      }
-      @-o-keyframes rotation {
-        from {-o-transform: rotate(0deg);}
-        to {-o-transform: rotate(360deg);}
-      }
-      @keyframes rotation {
-        from {transform: rotate(0deg);}
-        to {transform: rotate(360deg);}
-      }
-
       #status {
         display: inline-block;
         vertical-align: top;
-        margin-top: 5px;
-        margin-left: 5px;
-        font-weight: bold;
-        color: white;
+        font-weight: normal;
+        font-size: 0.8em;
+        color: darkgray;
       }
 
       #progress {
@@ -119,13 +88,8 @@
   </head>
   <body>
     <div id="header">
-        <div class="spinner" id='spinner'></div>
+        <h1 style="font-size: 1em; text-align: center; margin-top: 0; margin-bottom: 0; padding-bottom: 3px">Terry Cherry</h1>
         <div class="emscripten" id="status">Downloading...</div>
-        <span id='controls'>
-          <span><input type="button" value="🖵 FULLSCREEN" onclick="Module.requestFullscreen(false, false)"></span>
-          <span><input type="button" id="btn-audio" value="🔇 SUSPEND" onclick="toggleAudio()"></span>
-        </span>
-
         <div class="emscripten">
           <progress value="0" max="100" id="progress" hidden=0></progress>
         </div>
@@ -135,11 +99,17 @@
       <canvas class="emscripten" id="canvas" oncontextmenu="event.preventDefault()" tabindex=-1></canvas>
     </div>
 
+    <div style="display: flex; justify-content: space-around;">
+        <span id='controls'>
+          <span><input type="button" value="🖵 FULLSCREEN" onclick="Module.requestFullscreen(false, false)"></span>
+          <span><input type="button" id="btn-audio" value="🔇 SUSPEND" onclick="toggleAudio()"></span>
+        </span>
+    </div>
+
     <textarea id="output" rows="8"></textarea>
     <script type='text/javascript'>
         var statusElement = document.querySelector('#status');
         var progressElement = document.querySelector('#progress');
-        var spinnerElement = document.querySelector('#spinner');
         var Module = {
             preRun: [],
             postRun: [],
@@ -195,15 +165,17 @@
                     progressElement.value = parseInt(m[2])*100;
                     progressElement.max = parseInt(m[4])*100;
                     progressElement.hidden = true;
-                    spinnerElement.hidden = false;
                 } else {
                     progressElement.value = null;
                     progressElement.max = null;
                     progressElement.hidden = true;
-                    if (!text) spinnerElement.style.display = 'none';
                 }
 
-                statusElement.innerHTML = text;
+                if (text) {
+                    statusElement.innerHTML = '@version@: ' + text;
+                } else {
+                    statusElement.innerHTML = '@version@';
+                }
             },
             totalDependencies: 0,
             monitorRunDependencies: function(left) {
@@ -217,7 +189,6 @@
 
         window.onerror = function() {
             Module.setStatus('Exception thrown, see JavaScript console');
-            spinnerElement.style.display = 'none';
             Module.setStatus = function(text) { if (text) Module.printErr('[post-exception status] ' + text); };
         };
     </script>

feely_pona_entity.cpp

@@ -0,0 +1,292 @@
+#if defined(_CLANGD)
+    #pragma once
+    #include "feely_pona_unity.h"
+#endif
+
+static bool FP_Entity_IsBuildingForMobs(FP_GameEntity *entity)
+{
+    bool result = entity->type == FP_EntityType_AirportTerry ||
+                  entity->type == FP_EntityType_ClubTerry    ||
+                  entity->type == FP_EntityType_ChurchTerry  ||
+                  entity->type == FP_EntityType_KennelTerry;
+    return result;
+}
+
+static Dqn_f32 FP_Entity_CalcSpriteScaleForDesiredHeight(FP_Game *game, FP_Meters height, Dqn_Rect sprite_rect)
+{
+    Dqn_f32 sprite_in_meters = FP_Game_PixelsToMetersNx1(game->play, sprite_rect.size.y);
+    Dqn_f32 result           = height.meters / sprite_in_meters;
+    return result;
+}
+
+static FP_EntityRenderData FP_Entity_GetRenderData(FP_Game *game, FP_EntityType type, uint32_t raw_state, FP_GameDirection direction)
+{
+    FP_EntityRenderData result = {};
+    switch (type) {
+        case FP_EntityType_Nil: {
+        } break;
+
+        case FP_EntityType_Map: {
+            result.height.meters = 41.9f;
+            result.anim_name     = g_anim_names.map;
+        } break;
+
+        case FP_EntityType_Terry: {
+            result.height.meters = 1.8f;
+            FP_EntityTerryState state = DQN_CAST(FP_EntityTerryState)raw_state;
+            switch (state) {
+                case FP_EntityTerryState_Idle:   result.anim_name = g_anim_names.terry_walk_idle; break;
+
+                case FP_EntityTerryState_Attack: {
+                    switch (direction) {
+                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.terry_attack_up;   result.height.meters *= 1.5f; break;
+                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.terry_attack_down; result.height.meters *= 1.6f; break;
+                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.terry_attack_side; result.height.meters *= 1.5f; break;
+                        case FP_GameDirection_Right: result.anim_name = g_anim_names.terry_attack_side; result.height.meters *= 1.5f; result.flip = TELY_AssetFlip_X; break;
+                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
+                    }
+                } break;
+
+                case FP_EntityTerryState_RangeAttack: {
+                    switch (direction) {
+                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.terry_attack_phone_up;   result.height.meters *= 1.25f; break;
+                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.terry_attack_phone_down; result.height.meters *= 1.25f; break;
+                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.terry_attack_phone_side; result.height.meters *= 1.25f; result.flip = TELY_AssetFlip_X; break;
+                        case FP_GameDirection_Right: result.anim_name = g_anim_names.terry_attack_phone_side; result.height.meters *= 1.25f; break;
+                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
+                    }
+                } break;
+
+                case FP_EntityTerryState_Dash: {
+                    switch (direction) {
+                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.terry_ghost; break;
+                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.terry_ghost; break;
+                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.terry_ghost; break;
+                        case FP_GameDirection_Right: result.anim_name = g_anim_names.terry_ghost; result.flip = TELY_AssetFlip_X; break;
+                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
+                    }
+                } break;
+
+                case FP_EntityTerryState_Run: {
+                    switch (direction) {
+                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.terry_walk_up;    break;
+                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.terry_walk_down;  break;
+                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.terry_walk_left;  break;
+                        case FP_GameDirection_Right: result.anim_name = g_anim_names.terry_walk_right; break;
+                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
+                    }
+                } break;
+
+                case FP_EntityTerryState_DeadGhost: {
+                    result.anim_name = g_anim_names.terry_death; break;
+                } break;
+            }
+        } break;
+
+        case FP_EntityType_Smoochie: {
+            result.height.meters = 1.6f;
+            FP_EntitySmoochieState state = DQN_CAST(FP_EntitySmoochieState)raw_state;
+            switch (state) {
+                case FP_EntitySmoochieState_Idle:        result.anim_name = g_anim_names.smoochie_walk_down; break;
+                case FP_EntitySmoochieState_Attack:      result.anim_name = g_anim_names.smoochie_attack_down; break;
+                case FP_EntitySmoochieState_HurtSide:    result.anim_name = g_anim_names.smoochie_hurt_side; result.flip = direction == FP_GameDirection_Right ? TELY_AssetFlip_X : TELY_AssetFlip_No; break;
+                case FP_EntitySmoochieState_Death:       result.anim_name = g_anim_names.smoochie_death; break;
+                case FP_EntitySmoochieState_Run: {
+                    switch (direction) {
+                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.smoochie_walk_up;    break;
+                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.smoochie_walk_down;  break;
+                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.smoochie_walk_left;  break;
+                        case FP_GameDirection_Right: result.anim_name = g_anim_names.smoochie_walk_right; break;
+                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
+                    }
+                } break;
+            }
+        } break;
+
+        case FP_EntityType_MerchantTerry: {
+            result.height.meters = 3.66f;
+            FP_EntityMerchantTerryState state = DQN_CAST(FP_EntityMerchantTerryState)raw_state;
+            switch (state) {
+                case FP_EntityMerchantTerryState_Idle: result.anim_name = g_anim_names.merchant_terry; break;
+            }
+        } break;
+
+        case FP_EntityType_MerchantGraveyard: {
+            result.height.meters = 3.66f;
+            FP_EntityMerchantGraveyardState state = DQN_CAST(FP_EntityMerchantGraveyardState)raw_state;
+            switch (state) {
+                case FP_EntityMerchantGraveyardState_Idle: result.anim_name = g_anim_names.merchant_graveyard; break;
+            }
+        } break;
+
+        case FP_EntityType_MerchantGym: {
+            result.height.meters = 3.66f;
+            result.anim_name     = g_anim_names.merchant_gym;
+            FP_EntityMerchantGymState state = DQN_CAST(FP_EntityMerchantGymState)raw_state;
+            switch (state) {
+                case FP_EntityMerchantGymState_Idle: result.anim_name = g_anim_names.merchant_gym; break;
+            }
+        } break;
+
+        case FP_EntityType_MerchantPhoneCompany: {
+            result.height.meters = 5.f;
+            FP_EntityMerchantPhoneCompanyState state = DQN_CAST(FP_EntityMerchantPhoneCompanyState)raw_state;
+            switch (state) {
+                case FP_EntityMerchantPhoneCompanyState_Idle: result.anim_name = g_anim_names.merchant_phone_company; break;
+            }
+        } break;
+
+        case FP_EntityType_ClubTerry: {
+            result.height.meters          = 4.f;
+            FP_EntityClubTerryState state = DQN_CAST(FP_EntityClubTerryState)raw_state;
+            switch (state) {
+                case FP_EntityClubTerryState_Idle:      result.anim_name = g_anim_names.club_terry_dark; break;
+                case FP_EntityClubTerryState_PartyTime: result.anim_name = g_anim_names.club_terry_alive; break;
+            }
+        } break;
+
+        case FP_EntityType_Clinger: {
+            result.height.meters = 1.6f;
+            FP_EntityClingerState state = DQN_CAST(FP_EntityClingerState)raw_state;
+            switch (state) {
+                case FP_EntityClingerState_Idle: result.anim_name = g_anim_names.clinger_walk_down; break;
+
+                case FP_EntityClingerState_Attack: {
+                    switch (direction) {
+                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.clinger_attack_up;   break;
+                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.clinger_attack_down; break;
+                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.clinger_attack_side; result.flip = TELY_AssetFlip_X; break;
+                        case FP_GameDirection_Right: result.anim_name = g_anim_names.clinger_attack_side; break;
+                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
+                    }
+                } break;
+
+                case FP_EntityClingerState_Death: result.anim_name = g_anim_names.clinger_death; break;
+
+                case FP_EntityClingerState_Run: {
+                    switch (direction) {
+                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.clinger_walk_up;   break;
+                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.clinger_walk_down; break;
+                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.clinger_walk_down; break;
+                        case FP_GameDirection_Right: result.anim_name = g_anim_names.clinger_walk_down; break;
+                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
+                    }
+                } break;
+            }
+        } break;
+
+        case FP_EntityType_Heart: {
+            result.height.meters = 4.f;
+            FP_EntityHeartState state = DQN_CAST(FP_EntityHeartState)raw_state;
+            switch (state) {
+                case FP_EntityHeartState_Idle: result.anim_name = g_anim_names.heart; break;
+            }
+        } break;
+
+        case FP_EntityType_AirportTerry: {
+            result.height.meters = 4.f;
+            FP_EntityAirportTerryState state = DQN_CAST(FP_EntityAirportTerryState)raw_state;
+            switch (state) {
+                case FP_EntityAirportTerryState_Idle:         result.anim_name = g_anim_names.airport_terry; break;
+                case FP_EntityAirportTerryState_FlyPassenger: result.anim_name = g_anim_names.airport_terry; break;
+            }
+        } break;
+
+        case FP_EntityType_Catfish: {
+            result.height.meters = 1.6f;
+            FP_EntityCatfishState state = DQN_CAST(FP_EntityCatfishState)raw_state;
+            switch (state) {
+                case FP_EntityCatfishState_Idle: result.anim_name = g_anim_names.catfish_walk_down; break;
+                case FP_EntityCatfishState_Attack: {
+                    switch (direction) {
+                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.catfish_attack_up;   break;
+                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.catfish_attack_down; break;
+                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.catfish_attack_side; break;
+                        case FP_GameDirection_Right: result.anim_name = g_anim_names.catfish_attack_side; result.flip = TELY_AssetFlip_X; break;
+                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
+                    }
+                } break;
+                case FP_EntityCatfishState_Death: result.anim_name = g_anim_names.catfish_death; break;
+                case FP_EntityCatfishState_Run: {
+                    switch (direction) {
+                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.catfish_walk_up;   break;
+                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.catfish_walk_down; break;
+                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.catfish_walk_side; break;
+                        case FP_GameDirection_Right: result.anim_name = g_anim_names.catfish_walk_side; result.flip = TELY_AssetFlip_X; break;
+                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
+                    }
+                } break;
+            }
+        } break;
+
+        case FP_EntityType_ChurchTerry: {
+            result.height.meters = 4.f;
+            FP_EntityChurchTerryState state = DQN_CAST(FP_EntityChurchTerryState)raw_state;
+            switch (state) {
+                case FP_EntityChurchTerryState_Idle:          result.anim_name = g_anim_names.church_terry_dark; break;
+                case FP_EntityChurchTerryState_ConvertPatron: result.anim_name = g_anim_names.church_terry_alive; break;
+            }
+        } break;
+
+        case FP_EntityType_KennelTerry: {
+            result.height.meters = 3.f;
+            FP_EntityKennelTerryState state = DQN_CAST(FP_EntityKennelTerryState)raw_state;
+            switch (state) {
+                case FP_EntityKennelTerryState_Idle: result.anim_name = g_anim_names.kennel_terry; break;
+            }
+        } break;
+
+        case FP_EntityType_PhoneMessageProjectile: {
+            result.height.meters = 1.f;
+            result.anim_name     = g_anim_names.terry_attack_phone_message;
+        } break;
+
+        case FP_EntityType_AirportTerryPlane: {
+            result.height.meters = 1.5f;
+            result.anim_name     = g_anim_names.airport_terry_plane;
+        } break;
+
+        case FP_EntityType_MobSpawner: {
+            result.height.meters = 3.f;
+            FP_EntityMobSpawnerState state = DQN_CAST(FP_EntityMobSpawnerState)raw_state;
+            switch (state) {
+                case FP_EntityMobSpawnerState_Idle:     result.anim_name = g_anim_names.portal; break;
+                case FP_EntityMobSpawnerState_Shutdown: {
+                    result.anim_name     = g_anim_names.portal_break;
+                    result.height.meters = 3.5f;
+                } break;
+            }
+        } break;
+
+        case FP_EntityType_PortalMonkey: {
+            result.height.meters = 1.f;
+            result.anim_name     = g_anim_names.portal_monk; break;
+        } break;
+
+        case FP_EntityType_Billboard: {
+            result.height.meters = 7.5f;
+            FP_EntityBillboardState state = DQN_CAST(FP_EntityBillboardState)raw_state;
+            switch (state) {
+                case FP_EntityBillboardState_Attack:      result.anim_name = g_anim_names.map_billboard_attack; break;
+                case FP_EntityBillboardState_Dash:        result.anim_name = g_anim_names.map_billboard_dash; break;
+                case FP_EntityBillboardState_Monkey:      result.anim_name = g_anim_names.map_billboard_monkey; break;
+                case FP_EntityBillboardState_RangeAttack: result.anim_name = g_anim_names.map_billboard_range_attack; break;
+                case FP_EntityBillboardState_Strafe:      result.anim_name = g_anim_names.map_billboard_strafe; break;
+            }
+        } break;
+
+        case FP_EntityType_Count: DQN_INVALID_CODE_PATH; break;
+    }
+
+    result.sheet  = &game->atlas_sprite_sheet;
+    TELY_AssetSpriteAnimation *sprite_anim = TELY_Asset_GetSpriteAnimation(result.sheet, result.anim_name);
+    if (sprite_anim) {
+        result.sheet_rect  = result.sheet->rects.data[sprite_anim->index];
+        Dqn_f32 size_scale = FP_Entity_CalcSpriteScaleForDesiredHeight(game, result.height, result.sheet_rect);
+        result.render_size = result.sheet_rect.size * size_scale;
+        result.sprite      = TELY_Asset_MakeAnimatedSprite(result.sheet, result.anim_name, result.flip);
+    }
+
+    return result;
+}
+

feely_pona_entity_create.cpp

@@ -3,293 +3,6 @@
     #include "feely_pona_unity.h"
 #endif
 
-static bool FP_Entity_IsBuildingForMobs(FP_GameEntity *entity)
-{
-    bool result = entity->type == FP_EntityType_AirportTerry ||
-                  entity->type == FP_EntityType_ClubTerry    ||
-                  entity->type == FP_EntityType_ChurchTerry  ||
-                  entity->type == FP_EntityType_KennelTerry;
-    return result;
-}
-
-static Dqn_f32 FP_Entity_CalcSpriteScaleForDesiredHeight(FP_Game *game, FP_Meters height, Dqn_Rect sprite_rect)
-{
-    Dqn_f32 sprite_in_meters = FP_Game_PixelsToMetersNx1(game->play, sprite_rect.size.y);
-    Dqn_f32 result           = height.meters / sprite_in_meters;
-    return result;
-}
-
-FP_EntityRenderData FP_Entity_GetRenderData(FP_Game *game, FP_EntityType type, uint32_t raw_state, FP_GameDirection direction)
-{
-    FP_EntityRenderData result = {};
-    switch (type) {
-        case FP_EntityType_Nil: {
-        } break;
-
-        case FP_EntityType_Map: {
-            result.height.meters = 41.9f;
-            result.anim_name     = g_anim_names.map;
-        } break;
-
-        case FP_EntityType_Terry: {
-            result.height.meters = 1.8f;
-            FP_EntityTerryState state = DQN_CAST(FP_EntityTerryState)raw_state;
-            switch (state) {
-                case FP_EntityTerryState_Idle:   result.anim_name = g_anim_names.terry_walk_idle; break;
-
-                case FP_EntityTerryState_Attack: {
-                    switch (direction) {
-                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.terry_attack_up;   result.height.meters *= 1.5f; break;
-                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.terry_attack_down; result.height.meters *= 1.6f; break;
-                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.terry_attack_side; result.height.meters *= 1.5f; break;
-                        case FP_GameDirection_Right: result.anim_name = g_anim_names.terry_attack_side; result.height.meters *= 1.5f; result.flip = TELY_AssetFlip_X; break;
-                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
-                    }
-                } break;
-
-                case FP_EntityTerryState_RangeAttack: {
-                    switch (direction) {
-                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.terry_attack_phone_up;   result.height.meters *= 1.25f; break;
-                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.terry_attack_phone_down; result.height.meters *= 1.25f; break;
-                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.terry_attack_phone_side; result.height.meters *= 1.25f; result.flip = TELY_AssetFlip_X; break;
-                        case FP_GameDirection_Right: result.anim_name = g_anim_names.terry_attack_phone_side; result.height.meters *= 1.25f; break;
-                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
-                    }
-                } break;
-
-                case FP_EntityTerryState_Dash: {
-                    switch (direction) {
-                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.terry_ghost; break;
-                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.terry_ghost; break;
-                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.terry_ghost; break;
-                        case FP_GameDirection_Right: result.anim_name = g_anim_names.terry_ghost; result.flip = TELY_AssetFlip_X; break;
-                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
-                    }
-                } break;
-
-                case FP_EntityTerryState_Run: {
-                    switch (direction) {
-                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.terry_walk_up;    break;
-                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.terry_walk_down;  break;
-                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.terry_walk_left;  break;
-                        case FP_GameDirection_Right: result.anim_name = g_anim_names.terry_walk_right; break;
-                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
-                    }
-                } break;
-
-                case FP_EntityTerryState_DeadGhost: {
-                    result.anim_name = g_anim_names.terry_death; break;
-                } break;
-            }
-        } break;
-
-        case FP_EntityType_Smoochie: {
-            result.height.meters = 1.6f;
-            FP_EntitySmoochieState state = DQN_CAST(FP_EntitySmoochieState)raw_state;
-            switch (state) {
-                case FP_EntitySmoochieState_Idle:        result.anim_name = g_anim_names.smoochie_walk_down; break;
-                case FP_EntitySmoochieState_Attack:      result.anim_name = g_anim_names.smoochie_attack_down; break;
-                case FP_EntitySmoochieState_HurtSide:    result.anim_name = g_anim_names.smoochie_hurt_side; result.flip = direction == FP_GameDirection_Right ? TELY_AssetFlip_X : TELY_AssetFlip_No; break;
-                case FP_EntitySmoochieState_Death:       result.anim_name = g_anim_names.smoochie_death; break;
-                case FP_EntitySmoochieState_Run: {
-                    switch (direction) {
-                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.smoochie_walk_up;    break;
-                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.smoochie_walk_down;  break;
-                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.smoochie_walk_left;  break;
-                        case FP_GameDirection_Right: result.anim_name = g_anim_names.smoochie_walk_right; break;
-                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
-                    }
-                } break;
-            }
-        } break;
-
-        case FP_EntityType_MerchantTerry: {
-            result.height.meters = 3.66f;
-            FP_EntityMerchantTerryState state = DQN_CAST(FP_EntityMerchantTerryState)raw_state;
-            switch (state) {
-                case FP_EntityMerchantTerryState_Idle: result.anim_name = g_anim_names.merchant_terry; break;
-            }
-        } break;
-
-        case FP_EntityType_MerchantGraveyard: {
-            result.height.meters = 3.66f;
-            FP_EntityMerchantGraveyardState state = DQN_CAST(FP_EntityMerchantGraveyardState)raw_state;
-            switch (state) {
-                case FP_EntityMerchantGraveyardState_Idle: result.anim_name = g_anim_names.merchant_graveyard; break;
-            }
-        } break;
-
-        case FP_EntityType_MerchantGym: {
-            result.height.meters = 3.66f;
-            result.anim_name     = g_anim_names.merchant_gym;
-            FP_EntityMerchantGymState state = DQN_CAST(FP_EntityMerchantGymState)raw_state;
-            switch (state) {
-                case FP_EntityMerchantGymState_Idle: result.anim_name = g_anim_names.merchant_gym; break;
-            }
-        } break;
-
-        case FP_EntityType_MerchantPhoneCompany: {
-            result.height.meters = 5.f;
-            FP_EntityMerchantPhoneCompanyState state = DQN_CAST(FP_EntityMerchantPhoneCompanyState)raw_state;
-            switch (state) {
-                case FP_EntityMerchantPhoneCompanyState_Idle: result.anim_name = g_anim_names.merchant_phone_company; break;
-            }
-        } break;
-
-        case FP_EntityType_ClubTerry: {
-            result.height.meters          = 4.f;
-            FP_EntityClubTerryState state = DQN_CAST(FP_EntityClubTerryState)raw_state;
-            switch (state) {
-                case FP_EntityClubTerryState_Idle:      result.anim_name = g_anim_names.club_terry_dark; break;
-                case FP_EntityClubTerryState_PartyTime: result.anim_name = g_anim_names.club_terry_alive; break;
-            }
-        } break;
-
-        case FP_EntityType_Clinger: {
-            result.height.meters = 1.6f;
-            FP_EntityClingerState state = DQN_CAST(FP_EntityClingerState)raw_state;
-            switch (state) {
-                case FP_EntityClingerState_Idle: result.anim_name = g_anim_names.clinger_walk_down; break;
-
-                case FP_EntityClingerState_Attack: {
-                    switch (direction) {
-                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.clinger_attack_up;   break;
-                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.clinger_attack_down; break;
-                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.clinger_attack_side; result.flip = TELY_AssetFlip_X; break;
-                        case FP_GameDirection_Right: result.anim_name = g_anim_names.clinger_attack_side; break;
-                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
-                    }
-                } break;
-
-                case FP_EntityClingerState_Death: result.anim_name = g_anim_names.clinger_death; break;
-
-                case FP_EntityClingerState_Run: {
-                    switch (direction) {
-                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.clinger_walk_up;   break;
-                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.clinger_walk_down; break;
-                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.clinger_walk_down; break;
-                        case FP_GameDirection_Right: result.anim_name = g_anim_names.clinger_walk_down; break;
-                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
-                    }
-                } break;
-            }
-        } break;
-
-        case FP_EntityType_Heart: {
-            result.height.meters = 4.f;
-            FP_EntityHeartState state = DQN_CAST(FP_EntityHeartState)raw_state;
-            switch (state) {
-                case FP_EntityHeartState_Idle: result.anim_name = g_anim_names.heart; break;
-            }
-        } break;
-
-        case FP_EntityType_AirportTerry: {
-            result.height.meters = 4.f;
-            FP_EntityAirportTerryState state = DQN_CAST(FP_EntityAirportTerryState)raw_state;
-            switch (state) {
-                case FP_EntityAirportTerryState_Idle:         result.anim_name = g_anim_names.airport_terry; break;
-                case FP_EntityAirportTerryState_FlyPassenger: result.anim_name = g_anim_names.airport_terry; break;
-            }
-        } break;
-
-        case FP_EntityType_Catfish: {
-            result.height.meters = 1.6f;
-            FP_EntityCatfishState state = DQN_CAST(FP_EntityCatfishState)raw_state;
-            switch (state) {
-                case FP_EntityCatfishState_Idle: result.anim_name = g_anim_names.catfish_walk_down; break;
-                case FP_EntityCatfishState_Attack: {
-                    switch (direction) {
-                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.catfish_attack_up;   break;
-                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.catfish_attack_down; break;
-                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.catfish_attack_side; break;
-                        case FP_GameDirection_Right: result.anim_name = g_anim_names.catfish_attack_side; result.flip = TELY_AssetFlip_X; break;
-                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
-                    }
-                } break;
-                case FP_EntityCatfishState_Death: result.anim_name = g_anim_names.catfish_death; break;
-                case FP_EntityCatfishState_Run: {
-                    switch (direction) {
-                        case FP_GameDirection_Up:    result.anim_name = g_anim_names.catfish_walk_up;   break;
-                        case FP_GameDirection_Down:  result.anim_name = g_anim_names.catfish_walk_down; break;
-                        case FP_GameDirection_Left:  result.anim_name = g_anim_names.catfish_walk_side; break;
-                        case FP_GameDirection_Right: result.anim_name = g_anim_names.catfish_walk_side; result.flip = TELY_AssetFlip_X; break;
-                        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
-                    }
-                } break;
-            }
-        } break;
-
-        case FP_EntityType_ChurchTerry: {
-            result.height.meters = 4.f;
-            FP_EntityChurchTerryState state = DQN_CAST(FP_EntityChurchTerryState)raw_state;
-            switch (state) {
-                case FP_EntityChurchTerryState_Idle:          result.anim_name = g_anim_names.church_terry_dark; break;
-                case FP_EntityChurchTerryState_ConvertPatron: result.anim_name = g_anim_names.church_terry_alive; break;
-            }
-        } break;
-
-        case FP_EntityType_KennelTerry: {
-            result.height.meters = 3.f;
-            FP_EntityKennelTerryState state = DQN_CAST(FP_EntityKennelTerryState)raw_state;
-            switch (state) {
-                case FP_EntityKennelTerryState_Idle: result.anim_name = g_anim_names.kennel_terry; break;
-            }
-        } break;
-
-        case FP_EntityType_PhoneMessageProjectile: {
-            result.height.meters = 1.f;
-            result.anim_name     = g_anim_names.terry_attack_phone_message;
-        } break;
-
-        case FP_EntityType_AirportTerryPlane: {
-            result.height.meters = 1.5f;
-            result.anim_name     = g_anim_names.airport_terry_plane;
-        } break;
-
-        case FP_EntityType_MobSpawner: {
-            result.height.meters = 3.f;
-            FP_EntityMobSpawnerState state = DQN_CAST(FP_EntityMobSpawnerState)raw_state;
-            switch (state) {
-                case FP_EntityMobSpawnerState_Idle:     result.anim_name = g_anim_names.portal; break;
-                case FP_EntityMobSpawnerState_Shutdown: {
-                    result.anim_name     = g_anim_names.portal_break;
-                    result.height.meters = 3.5f;
-                } break;
-            }
-        } break;
-
-        case FP_EntityType_PortalMonkey: {
-            result.height.meters = 1.f;
-            result.anim_name     = g_anim_names.portal_monk; break;
-        } break;
-
-        case FP_EntityType_Billboard: {
-            result.height.meters = 12.f;
-            FP_EntityBillboardState state = DQN_CAST(FP_EntityBillboardState)raw_state;
-            switch (state) {
-                case FP_EntityBillboardState_Attack:      result.anim_name = g_anim_names.map_billboard_attack; break;
-                case FP_EntityBillboardState_Dash:        result.anim_name = g_anim_names.map_billboard_dash; break;
-                case FP_EntityBillboardState_Monkey:      result.anim_name = g_anim_names.map_billboard_monkey; break;
-                case FP_EntityBillboardState_RangeAttack: result.anim_name = g_anim_names.map_billboard_range_attack; break;
-                case FP_EntityBillboardState_Strafe:      result.anim_name = g_anim_names.map_billboard_strafe; break;
-            }
-        } break;
-
-        case FP_EntityType_Count: DQN_INVALID_CODE_PATH; break;
-    }
-
-    result.sheet  = &game->atlas_sprite_sheet;
-    TELY_AssetSpriteAnimation *sprite_anim = TELY_Asset_GetSpriteAnimation(result.sheet, result.anim_name);
-    if (sprite_anim) {
-        result.sheet_rect  = result.sheet->rects.data[sprite_anim->index];
-        Dqn_f32 size_scale = FP_Entity_CalcSpriteScaleForDesiredHeight(game, result.height, result.sheet_rect);
-        result.render_size = result.sheet_rect.size * size_scale;
-        result.sprite      = TELY_Asset_MakeAnimatedSprite(result.sheet, result.anim_name, result.flip);
-    }
-
-    return result;
-}
-
 static void FP_Entity_AddDebugEditorFlags(FP_Game *game, FP_GameEntityHandle handle)
 {
     FP_GameEntity *entity = FP_Game_GetEntity(game, handle);

feely_pona_game.cpp

@@ -3,14 +3,6 @@
     #include "feely_pona_unity.h"
 #endif
 
-#define FP_Game_MetersToPixelsNx1(game, val)  ((val) * (game).meters_to_pixels)
-#define FP_Game_MetersToPixelsNx2(game, x, y) (Dqn_V2_InitNx2(x, y) * (game).meters_to_pixels)
-#define FP_Game_MetersToPixelsV2(game, xy)    (xy * (game).meters_to_pixels)
-
-#define FP_Game_PixelsToMetersNx1(game, val)  ((val) * (1.f/(game).meters_to_pixels))
-#define FP_Game_PixelsToMetersNx2(game, x, y) (Dqn_V2_InitNx2(x, y) * (1.f/(game).meters_to_pixels))
-#define FP_Game_PixelsToMetersV2(game, xy)    (xy * (1.f/(game).meters_to_pixels))
-
 static bool operator==(FP_GameEntityHandle const &lhs, FP_GameEntityHandle const &rhs)
 {
     bool result = lhs.id == rhs.id;
@@ -23,13 +15,6 @@ static bool operator!=(FP_GameEntityHandle const &lhs, FP_GameEntityHandle const
     return result;
 }
 
-// TODO(doyle): Use this
-struct FP_GameCameraM2x3
-{
-    Dqn_M2x3 model_view;
-    Dqn_M2x3 view_model;
-};
-
 static FP_GameCameraM2x3 FP_Game_CameraModelViewM2x3(FP_GameCamera camera)
 {
     FP_GameCameraM2x3 result = {};
@@ -932,3 +917,226 @@ static void FP_GameRenderScanlines(TELY_Renderer *renderer,
         TELY_Render_LineColourV4(renderer, start, end, TELY_Colour_V4Alpha(TELY_COLOUR_WHITE_V4, 0.1f), scanline_thickness);
     }
 }
+
+static FP_GameCanMoveToPositionResult FP_Game_CanEntityMoveToPosition(FP_Game *game, FP_GameEntityHandle entity_handle, Dqn_V2 delta_pos)
+{
+    FP_GameCanMoveToPositionResult result = {};
+    FP_GameEntity *entity                 = FP_Game_GetEntity(game, entity_handle);
+    if (FP_Game_IsNilEntity(entity))
+        return result;
+
+    Dqn_Rect const entity_world_hit_box                    = FP_Game_CalcEntityWorldHitBox(game, entity->handle);
+    Dqn_V2 const   entity_pos                              = FP_Game_CalcEntityWorldPos(game, entity->handle);
+    Dqn_f32 const  SENTINEL_T                              = 999.f;
+    Dqn_f32        global_earliest_t                       = SENTINEL_T;
+    Dqn_V2         global_earliest_pos_just_before_collide = {};
+    Dqn_V2 const   entity_new_pos                          = entity_pos + delta_pos;
+
+    if ((entity->flags & FP_GameEntityFlag_NoClip) == 0) {
+        for (FP_GameEntityIterator collider_it = {}; FP_Game_DFSPostOrderWalkEntityTree(game, &collider_it, game->play.root_entity);) {
+            FP_GameEntity *collider = collider_it.entity;
+            if (collider->handle == entity->handle)
+                continue;
+
+            // TODO(doyle): Calculate the list of collidables at the start of the frame
+            if ((collider->flags & FP_GameEntityFlag_NonTraversable) == 0)
+                continue;
+
+            bool skip_colliding_with_player = false;
+            for (FP_GameEntityHandle player : game->play.players) {
+                if (player == collider->handle) {
+                    skip_colliding_with_player = true;
+                    break;
+                }
+            }
+
+            if (skip_colliding_with_player)
+                continue;
+
+            bool entity_collides_with_collider = true;
+            switch (entity->type) {
+                case FP_EntityType_Catfish:  /*FALLTHRU*/
+                case FP_EntityType_Smoochie: /*FALLTHRU*/
+                case FP_EntityType_Clinger: {
+                    if (collider->type == FP_EntityType_Smoochie || collider->type == FP_EntityType_Clinger || collider->type == FP_EntityType_Catfish) {
+                        entity_collides_with_collider = false;
+                    } else if (FP_Entity_IsBuildingForMobs(collider)) {
+                        #if 0
+                        // NOTE: We disable collision on buildings we have visited to avoid some
+                        // problems ...
+                        if (FP_SentinelList_Find(&entity->buildings_visited, collider->handle)) {
+                            entity_collides_with_collider = false;
+                        }
+                        #else
+                        entity_collides_with_collider = false;
+                        #endif
+                    } else if (collider->type == FP_EntityType_Heart ||
+                               collider->type == FP_EntityType_MerchantGym ||
+                               collider->type == FP_EntityType_MerchantTerry ||
+                               collider->type == FP_EntityType_MerchantGraveyard ||
+                               collider->type == FP_EntityType_MerchantPhoneCompany) {
+                        entity_collides_with_collider = false;
+                    }
+                } break;
+
+                case FP_EntityType_Terry: {
+                    // NOTE: Don't collide with mobs when dashing (e.g. phase through)
+                    FP_EntityTerryState state = *DQN_CAST(FP_EntityTerryState *)&entity->action.state;
+                    if (state == FP_EntityTerryState_Dash || state == FP_EntityTerryState_DeadGhost) {
+                        if (collider->type == FP_EntityType_Smoochie || collider->type == FP_EntityType_Clinger || collider->type == FP_EntityType_Catfish)
+                            entity_collides_with_collider = false;
+                    }
+                } break;
+
+                case FP_EntityType_Nil:                    break;
+                case FP_EntityType_MerchantTerry:          break;
+                case FP_EntityType_Count:                  break;
+                case FP_EntityType_ClubTerry:              break;
+                case FP_EntityType_Map:                    break;
+                case FP_EntityType_MerchantGraveyard:      break;
+                case FP_EntityType_MerchantGym:            break;
+                case FP_EntityType_MerchantPhoneCompany:   break;
+                case FP_EntityType_Heart:                  break;
+                case FP_EntityType_AirportTerry:           break;
+                case FP_EntityType_ChurchTerry:            break;
+                case FP_EntityType_KennelTerry:            break;
+                case FP_EntityType_PhoneMessageProjectile: break;
+                case FP_EntityType_AirportTerryPlane:
+                case FP_EntityType_MobSpawner:
+                case FP_EntityType_PortalMonkey: break;
+                case FP_EntityType_Billboard: break;
+            }
+
+            if (!entity_collides_with_collider)
+                continue;
+
+            // NOTE: Sweep collider with half the radius of the source entity
+            Dqn_Rect collider_world_hit_box       = FP_Game_CalcEntityWorldHitBox(game, collider->handle);
+            if (Dqn_V2_Area(collider_world_hit_box.size) <= 0)
+                continue;
+
+            Dqn_Rect swept_collider_world_hit_box = collider_world_hit_box;
+            swept_collider_world_hit_box.pos      -= (entity_world_hit_box.size * .5f);
+            swept_collider_world_hit_box.size     += entity_world_hit_box.size;
+
+            if (!Dqn_Rect_ContainsPoint(swept_collider_world_hit_box, entity_new_pos))
+                continue;
+
+            Dqn_f32 collider_left_wall_x   = swept_collider_world_hit_box.pos.x;
+            Dqn_f32 collider_right_wall_x  = swept_collider_world_hit_box.pos.x + swept_collider_world_hit_box.size.w;
+            Dqn_f32 collider_top_wall_y    = swept_collider_world_hit_box.pos.y;
+            Dqn_f32 collider_bottom_wall_y = swept_collider_world_hit_box.pos.y + swept_collider_world_hit_box.size.h;
+
+            Dqn_V2 o = entity_pos;
+            Dqn_V2 d = delta_pos;
+
+            // NOTE: Solve collision by determining the 't' value at which
+            // we hit one of the walls of the collider and move the entity
+            // at exactly that point.
+            // O + td = x
+            // td     = x - O
+            // t      = (x - O) / d
+
+            Dqn_f32 earliest_t = SENTINEL_T;
+            if (d.x != 0.f) {
+                Dqn_f32 left_t  = (collider_left_wall_x  - o.x) / d.x;
+                Dqn_f32 right_t = (collider_right_wall_x - o.x) / d.x;
+                if (left_t >= 0.f && left_t <= 1.f)
+                    earliest_t = DQN_MIN(earliest_t, left_t);
+                if (right_t >= 0.f && right_t <= 1.f)
+                    earliest_t = DQN_MIN(earliest_t, right_t);
+            }
+
+            if (d.y != 0.f) {
+                Dqn_f32 top_t    = (collider_top_wall_y    - o.y) / d.y;
+                Dqn_f32 bottom_t = (collider_bottom_wall_y - o.y) / d.y;
+                if (top_t >= 0.f && top_t <= 1.f)
+                    earliest_t = DQN_MIN(earliest_t, top_t);
+                if (bottom_t >= 0.f && bottom_t <= 1.f)
+                    earliest_t = DQN_MIN(earliest_t, bottom_t);
+            }
+
+            if (earliest_t < global_earliest_t) {
+                global_earliest_t                       = earliest_t;
+                global_earliest_pos_just_before_collide = entity_pos + (d * earliest_t);
+            }
+        }
+    }
+
+    result.yes = global_earliest_t == SENTINEL_T;
+    if (!result.yes)
+        result.next_closest_valid_move = delta_pos * global_earliest_t;
+    return result;
+}
+
+static void FP_Game_MoveEntity(FP_Game *game, FP_GameEntityHandle entity_handle, Dqn_V2 acceleration_meters_per_s)
+{
+    // f"(t) = a
+    // f'(t) = at + v
+    // f (t) = 0.5f*a(t^2) + vt + p
+
+    FP_GameEntity *entity = FP_Game_GetEntity(game, entity_handle);
+    if (FP_Game_IsNilEntity(entity))
+        return;
+
+    Dqn_f32 t          = DQN_CAST(Dqn_f32)DQN_SQUARED(FP_GAME_PHYSICS_STEP);
+    Dqn_f32 t_squared  = DQN_SQUARED(t);
+
+    Dqn_f32 velocity_falloff_coefficient  = 0.82f;
+    Dqn_f32 acceleration_feel_good_factor = 15'000.f;
+    Dqn_V2  acceleration                  = FP_Game_MetersToPixelsV2(game->play, acceleration_meters_per_s) * acceleration_feel_good_factor;
+    entity->velocity                      = (acceleration * t) + entity->velocity * velocity_falloff_coefficient;
+
+    // NOTE: Zero out velocity with epsilon
+    if (DQN_ABS(entity->velocity.x) < 5.f)
+        entity->velocity.x = 0.f;
+    if (DQN_ABS(entity->velocity.y) < 5.f)
+        entity->velocity.y = 0.f;
+
+    Dqn_V2 const   delta_pos            = (acceleration * 0.5f * t_squared) + (entity->velocity * t);
+    Dqn_Rect const entity_world_hit_box = FP_Game_CalcEntityWorldHitBox(game, entity->handle);
+    Dqn_V2 const   entity_pos           = FP_Game_CalcEntityWorldPos(game, entity->handle);
+    Dqn_V2 const   entity_new_pos       = entity_pos + delta_pos;
+
+    FP_GameCanMoveToPositionResult move_to_result = FP_Game_CanEntityMoveToPosition(game, entity->handle, delta_pos);
+    if (move_to_result.yes) {
+        entity->local_pos += delta_pos;
+    } else {
+        entity->local_pos += move_to_result.next_closest_valid_move;
+    }
+}
+
+static Dqn_Rect FP_Game_GetBuildingPlacementRectForEntity(FP_Game *game, FP_GamePlaceableBuilding placeable_building, FP_GameEntityHandle handle)
+{
+    Dqn_Rect       result = {};
+    FP_GameEntity *entity = FP_Game_GetEntity(game, handle);
+    if (FP_Game_IsNilEntity(entity))
+        return result;
+
+    FP_EntityRenderData render_data = FP_Entity_GetRenderData(game, placeable_building.type, placeable_building.state, entity->direction);
+    Dqn_Rect box   = FP_Game_CalcEntityWorldHitBox(game, entity->handle);
+    Dqn_V2 build_p = {};
+    switch (entity->direction) {
+        case FP_GameDirection_Up: {
+            build_p = Dqn_Rect_InterpolatedPoint(box, Dqn_V2_InitNx2(0.5f, 0.f)) - Dqn_V2_InitNx2(0.f, render_data.render_size.h * .5f + 10.f);
+        } break;
+
+        case FP_GameDirection_Down: {
+            build_p = Dqn_Rect_InterpolatedPoint(box, Dqn_V2_InitNx2(0.5f, 1.f)) + Dqn_V2_InitNx2(0.f, render_data.render_size.h * .5f + 10.f);
+        } break;
+
+        case FP_GameDirection_Left: {
+            build_p = Dqn_Rect_InterpolatedPoint(box, Dqn_V2_InitNx2(0.0f, 0.5f)) - Dqn_V2_InitNx2(render_data.render_size.w * .5f + 10.f, 0);
+        } break;
+
+        case FP_GameDirection_Right: {
+            build_p = Dqn_Rect_InterpolatedPoint(box, Dqn_V2_InitNx2(1.f, 0.5f)) + Dqn_V2_InitNx2(render_data.render_size.w * .5f + 10.f, 0);
+        } break;
+
+        case FP_GameDirection_Count: DQN_INVALID_CODE_PATH; break;
+    }
+
+    result.size = render_data.render_size;
+    result.pos  = build_p - (render_data.render_size * .5f);
+    return result;
+}

feely_pona_game.h

@@ -158,6 +158,34 @@ enum FP_GameEntityFaction
     FP_GameEntityFaction_Foe,
 };
 
+enum FP_GameInGameMenu
+{
+    FP_GameInGameMenu_Nil,
+    FP_GameInGameMenu_Build,
+    FP_GameInGameMenu_Merchant,
+};
+
+struct FP_GameKeyBind
+{
+    TELY_PlatformInputScanCode   scan_code;
+    TELY_PlatformInputGamepadKey gamepad_key;
+};
+
+struct FP_GameControls
+{
+    FP_GameKeyBind up;
+    FP_GameKeyBind down;
+    FP_GameKeyBind left;
+    FP_GameKeyBind right;
+    FP_GameKeyBind attack;
+    FP_GameKeyBind buy_building;
+    FP_GameKeyBind buy_upgrade;
+    FP_GameKeyBind range_attack;
+    FP_GameKeyBind build_mode;
+    FP_GameKeyBind strafe;
+    FP_GameKeyBind dash;
+};
+
 struct FP_GameEntity
 {
     FP_GameEntity                         *next;
@@ -191,10 +219,12 @@ struct FP_GameEntity
     // NOTE: The entity hit box is positioned at the center of the entity.
     Dqn_V2                                local_hit_box_size;
     Dqn_V2                                local_hit_box_offset;
+    Dqn_f32                               trauma01;
 
     Dqn_V2                                attack_box_size;
     Dqn_V2                                attack_box_offset;
     bool                                  attack_processed;
+    Dqn_usize                             hit_on_clock_ms;
     bool                                  is_dying;
     uint64_t                              last_attack_timestamp;
     uint64_t                              attack_cooldown_ms;
@@ -238,12 +268,23 @@ struct FP_GameEntity
     Dqn_FArray<FP_GameEntityHandle, 3>    building_queue;
     uint64_t                              building_queue_next_sort_timestamp_ms;
     FP_GameEntityHandle                   queued_at_building;
+
+    FP_GameInGameMenu                     in_game_menu;
+    bool                                  build_mode_can_place_building;
+    Dqn_usize                             build_mode_building_index;
+
+    FP_GameControls                       controls;
+
+    Dqn_V2                                merchant_terry_menu_pos;
+    Dqn_V2                                merchant_graveyard_menu_pos;
+    Dqn_V2                                merchant_gym_menu_pos;
+    Dqn_V2                                merchant_phone_company_menu_pos;
 };
 
 struct FP_GameEntityIterator
 {
-    bool           init;
-    Dqn_usize      iteration_count;
+    bool          init;
+    Dqn_usize     iteration_count;
 
     FP_GameEntity *entity;
     FP_GameEntity *last_visited;
@@ -257,6 +298,7 @@ struct FP_GameCamera
 {
     Dqn_V2  size;
     Dqn_V2  world_pos;
+    Dqn_V2  world_pos_target;
     Dqn_f32 rotate_rads;
     Dqn_V2  scale;
 };
@@ -281,13 +323,6 @@ enum FP_GameAudio
     FP_GameAudio_Count,
 };
 
-enum FP_GameInGameMenu
-{
-    FP_GameInGameMenu_Nil,
-    FP_GameInGameMenu_Build,
-    FP_GameInGameMenu_Merchant,
-};
-
 enum FP_GameState
 {
     FP_GameState_IntroScreen,
@@ -310,7 +345,7 @@ struct FP_GamePlay
     FP_GameEntity                        *entity_free_list;
     FP_GameEntity                        *map;
 
-    FP_GameEntityHandle                   player;
+    Dqn_FArray<FP_GameEntityHandle, 2>    players;
     FP_GameRenderSprite                   player_merchant_menu;
     uint64_t                              player_trigger_purchase_upgrade_timestamp;
     uint64_t                              player_trigger_purchase_building_timestamp;
@@ -328,6 +363,7 @@ struct FP_GamePlay
     FP_GameEntityHandle                   prev_hot_entity;
     FP_GameEntityHandle                   prev_active_entity;
 
+    Dqn_FArray<FP_GameEntityHandle, 2>    camera_tracking_entity;
     FP_GameCamera                         camera;
     Dqn_f32                               meters_to_pixels;
     uint64_t                              clock_ms;
@@ -337,9 +373,6 @@ struct FP_GamePlay
     bool                                  debug_ui;
     bool                                  debug_hide_hud;
     bool                                  god_mode;
-    FP_GameInGameMenu                     in_game_menu;
-    bool                                  build_mode_can_place_building;
-    Dqn_usize                             build_mode_building_index;
 
     Dqn_FArray<FP_GameEntityHandle, 4>    mob_spawners;
     Dqn_FArray<FP_GameEntityHandle, 3>    portal_monkeys;
@@ -352,25 +385,6 @@ struct FP_GamePlay
     FP_GameState                          state;
 };
 
-struct FP_GameKeyBind
-{
-    TELY_PlatformInputScanCode   scan_code;
-    TELY_PlatformInputGamepadKey gamepad_key;
-};
-
-struct FP_GameControls
-{
-    FP_GameKeyBind up;
-    FP_GameKeyBind down;
-    FP_GameKeyBind left;
-    FP_GameKeyBind right;
-    FP_GameKeyBind attack;
-    FP_GameKeyBind range_attack;
-    FP_GameKeyBind build_mode;
-    FP_GameKeyBind strafe;
-    FP_GameKeyBind dash;
-};
-
 struct FP_Game
 {
     TELY_AssetFontHandle  inter_regular_font_large;
@@ -384,7 +398,6 @@ struct FP_Game
     TELY_AssetSpriteSheet atlas_sprite_sheet;
     TELY_RFui             rfui;
     FP_GamePlay           play;
-    FP_GameControls       controls;
 };
 
 struct FP_GameAStarNode
@@ -415,3 +428,27 @@ FP_GamePlaceableBuilding const PLACEABLE_BUILDINGS[] = {
     {FP_EntityType_ClubTerry,    FP_EntityClubTerryState_Idle},
     {FP_EntityType_KennelTerry,  FP_EntityKennelTerryState_Idle},
 };
+
+struct FP_GameCanMoveToPositionResult
+{
+    bool   yes;
+    Dqn_V2 next_closest_valid_move;
+};
+
+struct FP_GameCameraM2x3
+{
+    Dqn_M2x3 model_view;
+    Dqn_M2x3 view_model;
+};
+
+
+Dqn_f32 const FP_GAME_PHYSICS_STEP = 1 / 60.f;
+
+#define FP_Game_MetersToPixelsNx1(game, val)  ((val) * (game).meters_to_pixels)
+#define FP_Game_MetersToPixelsNx2(game, x, y) (Dqn_V2_InitNx2(x, y) * (game).meters_to_pixels)
+#define FP_Game_MetersToPixelsV2(game, xy)    (xy * (game).meters_to_pixels)
+
+#define FP_Game_PixelsToMetersNx1(game, val)  ((val) * (1.f/(game).meters_to_pixels))
+#define FP_Game_PixelsToMetersNx2(game, x, y) (Dqn_V2_InitNx2(x, y) * (1.f/(game).meters_to_pixels))
+#define FP_Game_PixelsToMetersV2(game, xy)    (xy * (1.f/(game).meters_to_pixels))
+

feely_pona_unity.h

@@ -67,6 +67,7 @@ DQN_MSVC_WARNING_DISABLE(4505) // warning C4505: unreferenced function with inte
 #include "feely_pona_entity.h"
 #include "feely_pona_game.h"
 
+#include "feely_pona_entity.cpp"
 #include "feely_pona_game.cpp"
 #include "feely_pona_entity_create.cpp"
 #include "feely_pona_misc.cpp"

feely_pona_unity_nodll.h

@@ -84,6 +84,7 @@ DQN_GCC_WARNING_DISABLE(-Wunused-function)
 #include "feely_pona_entity.h"
 #include "feely_pona_game.h"
 
+#include "feely_pona_entity.cpp"
 #include "feely_pona_game.cpp"
 #include "feely_pona_entity_create.cpp"
 #include "feely_pona_misc.cpp"