fp: Add perry splash screen on joining the fight

feely_pona.cpp

@@ -127,6 +127,7 @@ static bool FP_ListenForNewPlayer(TELY_PlatformInput *input, FP_Game *game)
             FP_GameEntityHandle player        = play->players.data[play->players.size - 1];
             Dqn_V2              player_pos    = FP_Game_CalcEntityWorldPos(game, player);
             terry_handle                      = FP_Entity_CreatePerry(game, player_pos, "Perry");
+            game->play.perry_joined           = FP_GamePerryJoins_Enters;
         } else {
             terry_handle = FP_Entity_CreateTerry(game, Dqn_V2_InitNx2(1380, 11), "Perry");
         }
@@ -1294,9 +1295,9 @@ void FP_Update(TELY_Platform *platform, FP_Game *game, TELY_PlatformInput *input
     Dqn_Profiler_ZoneScopeWithIndex("FP_Update", FP_ProfileZone_FPUpdate);
 
     game->play.update_counter++;
-    game->play.clock_ms          = DQN_CAST(uint64_t)(platform->input.timer_s * 1000.f);
     Dqn_ProfilerZone update_zone = Dqn_Profiler_BeginZoneWithIndex(DQN_STRING8("FP_Update: Entity loop"), FP_ProfileZone_FPUpdate_EntityLoop);
-    if (game->play.state == FP_GameState_Play) {
+    if (game->play.state == FP_GameState_Play && game->play.perry_joined != FP_GamePerryJoins_Enters) {
+        game->play.clock_ms = DQN_CAST(uint64_t)(platform->input.timer_s * 1000.f);
 
         DQN_MSVC_WARNING_PUSH
         DQN_MSVC_WARNING_DISABLE(4127) // Conditional expression is constant 'FP_DEVELOPER_MODE'
@@ -2176,6 +2177,8 @@ void FP_Update(TELY_Platform *platform, FP_Game *game, TELY_PlatformInput *input
             game->play.state = FP_GameState_LoseGame;
     }
 
+    game->play.global_camera_trauma01 = DQN_MAX(0.f, game->play.global_camera_trauma01 - 0.05f);
+
     // NOTE: Camera ================================================================================
 
     FP_GamePlay *play        = &game->play;
@@ -2261,6 +2264,7 @@ void FP_Render(FP_Game *game, TELY_Platform *platform, TELY_Renderer *renderer,
         // NOTE: The heart shake is trauma^3 to emphasise the severity of losing heart health
         FP_GameEntity *heart = FP_Game_GetEntity(game, game->play.heart);
         trauma01             = DQN_MAX(trauma01, DQN_SQUARED(heart->trauma01) * heart->trauma01);
+        trauma01             = DQN_MAX(trauma01, DQN_SQUARED(game->play.global_camera_trauma01));
 
         // NOTE: Calculate camera position based on camera shake
         Dqn_f32 max_shake_dist  = 400.f;
@@ -2273,7 +2277,6 @@ void FP_Render(FP_Game *game, TELY_Platform *platform, TELY_Renderer *renderer,
         shake_camera.world_pos += shake_offset * interp_rate;
     }
 
-
     FP_GameCameraM2x3 camera_xforms = FP_Game_CameraModelViewM2x3(shake_camera);
     TELY_Render_PushTransform(renderer, camera_xforms.model_view);
     Dqn_V2 world_mouse_p = Dqn_M2x3_MulV2(camera_xforms.view_model, input->mouse_p);
@@ -2681,6 +2684,81 @@ void FP_Render(FP_Game *game, TELY_Platform *platform, TELY_Renderer *renderer,
         }
     }
 
+    // NOTE: Draw perry ============================================================================
+    if (game->play.perry_joined == FP_GamePerryJoins_Enters) {
+        TELY_Render_PushTransform(renderer, Dqn_M2x3_Identity());
+        DQN_DEFER { TELY_Render_PopTransform(renderer); };
+
+        // NOTE: Shake the world ===================================================================
+
+        Dqn_Rect window_rect = {};
+        window_rect.size     = Dqn_V2_InitV2I(platform->core.window_size);
+
+        Dqn_f32 tex_scalar = {};
+        {
+            TELY_AssetSpriteAnimation *anim          = TELY_Asset_GetSpriteAnimation(&game->atlas_sprite_sheet, g_anim_names.intro_screen_terry);
+            Dqn_Rect                   tex_rect      = game->atlas_sprite_sheet.rects.data[anim->index];
+            Dqn_f32                    desired_width = window_rect.size.x * .25f;
+            tex_scalar                               = desired_width / tex_rect.size.w;
+        }
+
+        game->play.perry_join_bg_alpha += (1.f - game->play.perry_join_bg_alpha) * (DQN_CAST(Dqn_f32)input->delta_s * 8.f);
+        game->play.perry_join_bg_alpha = DQN_MIN(game->play.perry_join_bg_alpha, .8f);
+        TELY_Render_RectColourV4(renderer,
+                                 window_rect,
+                                 TELY_RenderShapeMode_Fill,
+                                 TELY_Colour_V4Alpha(TELY_COLOUR_BLACK_V4, game->play.perry_join_bg_alpha));
+
+        if (game->play.perry_join_bg_alpha > 0.5f) {
+            if (!game->play.perry_join_splash_screen_shake_triggered) {
+                game->play.global_camera_trauma01                   = 1.f;
+                game->play.perry_join_splash_screen_shake_triggered = true;
+                game->play.perry_join_flash_alpha                   = 1.f;
+                game->play.perry_join_splash_screen_end_ms          = DQN_CAST(uint64_t)((DQN_CAST(Dqn_f32)input->timer_s * 1000.f) + 2000);
+            }
+        }
+
+        if (game->play.perry_join_splash_screen_shake_triggered) {
+            game->play.perry_join_flash_alpha -= game->play.perry_join_bg_alpha * (DQN_CAST(Dqn_f32)input->delta_s * 4.f);
+            game->play.perry_join_flash_alpha = DQN_MAX(game->play.perry_join_flash_alpha, .0f);
+            TELY_Render_RectColourV4(renderer,
+                                     window_rect,
+                                     TELY_RenderShapeMode_Fill,
+                                     TELY_Colour_V4Alpha(TELY_COLOUR_WHITE_V4, game->play.perry_join_flash_alpha));
+
+            TELY_AssetSpriteAnimation *anim = TELY_Asset_GetSpriteAnimation(&game->atlas_sprite_sheet, g_anim_names.intro_screen_perry_joins_the_fight);
+            Dqn_Rect tex_rect               = game->atlas_sprite_sheet.rects.data[anim->index];
+
+            Dqn_f32 sin_t           = (DQN_SINF(DQN_CAST(Dqn_f32)input->timer_s * 3.f) + 1) / 2.f;
+            Dqn_Rect dest_rect      = {};
+            dest_rect.size          = tex_rect.size * (tex_scalar * 1.5f) + (tex_rect.size * (0.005f * sin_t));
+            dest_rect.pos           = Dqn_Rect_InterpolatedPoint(window_rect, Dqn_V2_InitNx2(1, 1)) - dest_rect.size;
+
+            Dqn_f32 max_shake_dist  = 50.f;
+            Dqn_f32 half_shake_dist = max_shake_dist * .5f;
+            Dqn_V2  shake_offset    = {};
+            shake_offset.x          = (Dqn_PCG32_NextF32(&game->play.rng) * max_shake_dist - half_shake_dist) * game->play.global_camera_trauma01;
+            shake_offset.y          = (Dqn_PCG32_NextF32(&game->play.rng) * max_shake_dist - half_shake_dist) * game->play.global_camera_trauma01;
+            dest_rect.pos          += shake_offset;
+
+            if ((input->timer_s * 1000) > (game->play.perry_join_splash_screen_end_ms)) {
+                game->play.perry_join_splash_pos_offset.x -= dest_rect.size.x * (12.f * DQN_CAST(Dqn_f32)input->delta_s);
+                dest_rect.pos += game->play.perry_join_splash_pos_offset;
+                if (dest_rect.pos.x < -dest_rect.size.x)
+                    game->play.perry_joined = FP_GamePerryJoins_PostEnter;
+            }
+
+            TELY_Render_TextureColourV4(renderer,
+                                        game->atlas_sprite_sheet.tex_handle,
+                                        tex_rect,
+                                        dest_rect,
+                                        Dqn_V2_Zero /*rotate origin*/,
+                                        0.f /*rotation*/,
+                                        TELY_COLOUR_WHITE_V4);
+
+        }
+    }
+
     // NOTE: Render overlay UI =====================================================================
     if (!game->play.debug_hide_hud && (game->play.state == FP_GameState_Pause || game->play.state == FP_GameState_Play)) {
 
@@ -3519,6 +3597,7 @@ void FP_Render(FP_Game *game, TELY_Platform *platform, TELY_Renderer *renderer,
                                                 0.f /*rotation*/,
                                                 TELY_COLOUR_WHITE_V4);
                 }
+
             } else {
                 // NOTE: Draw end screen logo ======================================================
                 TELY_AssetSpriteAnimation *anim = TELY_Asset_GetSpriteAnimation(&game->atlas_sprite_sheet, g_anim_names.end_screen);

feely_pona.h

@@ -62,6 +62,7 @@ struct FP_GlobalAnimations
     Dqn_String8 intro_screen_subtitle              = DQN_STRING8("intro_screen_subtitle");
     Dqn_String8 intro_screen_terry                 = DQN_STRING8("intro_screen_terry");
     Dqn_String8 intro_screen_title                 = DQN_STRING8("intro_screen_title");
+    Dqn_String8 intro_screen_perry_joins_the_fight = DQN_STRING8("intro_screen_perry_joins_the_fight");
 
     Dqn_String8 kennel_terry          = DQN_STRING8("kennel_terry");
 

feely_pona_game.h

@@ -342,6 +342,13 @@ enum FP_GameState
     FP_GameState_LoseGame,
 };
 
+enum FP_GamePerryJoined
+{
+    FP_GamePerryJoins_NotYet,
+    FP_GamePerryJoins_Enters,
+    FP_GamePerryJoins_PostEnter,
+};
+
 struct FP_GamePlay
 {
     TELY_ChunkPool                      *chunk_pool;
@@ -392,7 +399,15 @@ struct FP_GamePlay
     uint32_t                              enemies_spawned_this_wave;
     uint64_t                              wave_cooldown_timestamp_ms;
 
+    Dqn_f32                               global_camera_trauma01;
     FP_GameState                          state;
+    FP_GamePerryJoined                    perry_joined;
+    Dqn_f32                               perry_join_bg_alpha;
+    Dqn_f32                               perry_join_flash_alpha;
+    bool                                  perry_join_splash_screen_shake_triggered;
+    Dqn_V2                                perry_join_splash_screen_pos;
+    uint64_t                              perry_join_splash_screen_end_ms;
+    Dqn_V2                                perry_join_splash_pos_offset;
 };
 
 struct FP_Game