doylet/feely_pona
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fp: Simplify camera shake, don't modify main camera, square & cube intensity

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This commit is contained in:
doyle 2023-10-18 20:34:38 +11:00
parent 4158674031
commit 49c80e60e8
2 changed files with 40 additions and 39 deletions
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71
feely_pona.cpp
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@ -1995,26 +1995,8 @@ void FP_Update(TELY_Platform *platform, FP_Game *game, TELY_PlatformInput *input
}
if (entity->flags & FP_GameEntityFlag_CameraTracking) {
FP_GameCamera *camera = &game->play.camera;
// NOTE: calculate camera position based on camera shake
Dqn_V2 camera_position = camera->world_pos;
if (camera->shake_duration > 0) {
Dqn_f32 offset_x = (Dqn_PCG32_NextF32(&game->play.rng) * 1000 - 500) * camera->shake_intensity;
Dqn_f32 offset_y = (Dqn_PCG32_NextF32(&game->play.rng) * 1000 - 500) * camera->shake_intensity;
camera_position.x += offset_x;
camera_position.y += offset_y;
camera->shake_duration -= input->delta_s;
}
Dqn_f64 camera_smoothing = 5.0f;
camera->world_pos.x += (camera_position.x - camera->world_pos.x) * (camera_smoothing * input->delta_s);
camera->world_pos.y += (camera_position.y - camera->world_pos.y) * (camera_smoothing * input->delta_s);
camera->world_pos_target = FP_Game_CalcEntityWorldPos(game, entity->handle) * camera->scale;
game->play.camera_tracking_entity = entity->handle;
game->play.camera.world_pos_target = FP_Game_CalcEntityWorldPos(game, entity->handle) * game->play.camera.scale;
}
FP_GamePlaceableBuilding placeable_building = PLACEABLE_BUILDINGS[game->play.build_mode_building_index];
@ -2149,6 +2131,8 @@ void FP_Update(TELY_Platform *platform, FP_Game *game, TELY_PlatformInput *input
}
}
entity->trauma01 = DQN_MAX(0.f, entity->trauma01 - 0.05f);
// NOTE: Derive dynmamic bounding boxes ====================================================
if (entity->flags & FP_GameEntityFlag_DeriveHitBoxFromChildrenBoundingBox) {
Dqn_Rect children_bbox = {};
@ -2263,12 +2247,8 @@ void FP_Update(TELY_Platform *platform, FP_Game *game, TELY_PlatformInput *input
}
defender->hp = defender->hp >= attacker->base_attack ? defender->hp - attacker->base_attack : 0;
defender->hit_on_frame = game->play.update_counter;
if (game->play.player == defender->handle) {
game->play.camera.shake_intensity = 0.1f;
game->play.camera.shake_duration = 0.25f;
}
defender->hit_on_clock_ms = game->play.update_counter;
defender->trauma01 = 1.f - (defender->hp / DQN_CAST(Dqn_f32)defender->hp_cap);
if (defender->hp <= 0) {
if (!defender->is_dying) {
@ -2352,7 +2332,29 @@ void FP_Render(FP_Game *game, TELY_Platform *platform, TELY_Renderer *renderer,
TELY_RFui_PushFont(rfui, game->jetbrains_mono_font);
TELY_RFui_PushLabelColourV4(rfui, TELY_COLOUR_BLACK_MIDNIGHT_V4);
FP_GameCameraM2x3 camera_xforms = FP_Game_CameraModelViewM2x3(game->play.camera);
FP_GameCamera shake_camera = game->play.camera;
{
// NOTE: Calculate camera position based on camera shake
FP_GameEntity *camera_entity = FP_Game_GetEntity(game, game->play.camera_tracking_entity);
Dqn_f32 trauma01 = DQN_SQUARED(camera_entity->trauma01);
if (camera_entity->type == FP_EntityType_Terry) {
// 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);
}
Dqn_f32 max_shake_dist = 400.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) * trauma01;
shake_offset.y = (Dqn_PCG32_NextF32(&game->play.rng) * max_shake_dist - half_shake_dist) * trauma01;
Dqn_f32 interp_rate = 5.0f * DQN_CAST(Dqn_f32)input->delta_s;
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);
@ -2459,14 +2461,14 @@ void FP_Render(FP_Game *game, TELY_Platform *platform, TELY_Renderer *renderer,
dest_rect.size.h *= -1.f; // NOTE: Flip the texture vertically
Dqn_V4 sprite_colour = TELY_COLOUR_WHITE_V4;
if (entity->hit_on_frame) {
DQN_ASSERT(game->play.update_counter >= entity->hit_on_frame);
Dqn_usize frames_elapsed_since_hit = game->play.update_counter - entity->hit_on_frame;
Dqn_usize const HIT_CONFIRM_DURATION = 8;
if (frames_elapsed_since_hit < HIT_CONFIRM_DURATION) {
if (entity->hit_on_clock_ms) {
DQN_ASSERT(game->play.clock_ms >= entity->hit_on_clock_ms);
Dqn_usize ms_since_hit = game->play.clock_ms - entity->hit_on_clock_ms;
Dqn_usize const HIT_CONFIRM_DURATION_MS = 8 * 16;
if (ms_since_hit < HIT_CONFIRM_DURATION_MS) {
sprite_colour = TELY_COLOUR_RED_V4;
sprite_colour.g = ((1.f / HIT_CONFIRM_DURATION) * frames_elapsed_since_hit);
sprite_colour.b = ((1.f / HIT_CONFIRM_DURATION) * frames_elapsed_since_hit);
sprite_colour.g = ((1.f / HIT_CONFIRM_DURATION_MS) * ms_since_hit);
sprite_colour.b = ((1.f / HIT_CONFIRM_DURATION_MS) * ms_since_hit);
}
}
@ -2483,7 +2485,6 @@ void FP_Render(FP_Game *game, TELY_Platform *platform, TELY_Renderer *renderer,
Dqn_V2 label_p = Dqn_Rect_InterpolatedPoint(dest_rect, Dqn_V2_InitNx2(0, -0.25f));
TELY_Render_TextF(renderer, label_p, Dqn_V2_InitNx2(0.f, 0.1f), "CONVERTED");
}
}
DQN_FOR_UINDEX(anim_index, entity->extra_cosmetic_anims.size) {

6
feely_pona_game.h
View File

@ -191,11 +191,12 @@ 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_frame;
Dqn_usize hit_on_clock_ms;
bool is_dying;
uint64_t last_attack_timestamp;
uint64_t attack_cooldown_ms;
@ -261,8 +262,6 @@ struct FP_GameCamera
Dqn_V2 world_pos_target;
Dqn_f32 rotate_rads;
Dqn_V2 scale;
Dqn_f32 shake_intensity;
Dqn_f64 shake_duration;
};
enum FP_GameAudio
@ -332,6 +331,7 @@ struct FP_GamePlay
FP_GameEntityHandle prev_hot_entity;
FP_GameEntityHandle prev_active_entity;
FP_GameEntityHandle camera_tracking_entity;
FP_GameCamera camera;
Dqn_f32 meters_to_pixels;
uint64_t clock_ms;