Fix some emitter positioning

Internal Changelog:
- Add more fields
    - Elapsed is now in sprite component
    - Add rotation fields
- Tweak early exit checks in render functions

assets_test.c

@@ -32,6 +32,7 @@ int main(void)
     Font* fnt = get_font(&assets, "testfont");
 
     int current_frame = 0;
+    int elapsed = 0;
     while(!WindowShouldClose())
     {
         if (IsKeyReleased(KEY_C))
@@ -49,12 +50,12 @@ int main(void)
         EndDrawing();
 
         // Update the animated Sprite
-        spr2->elapsed++;
+        elapsed++;
-        if (spr2->elapsed == spr2->speed)
+        if (elapsed == spr2->speed)
         {
             current_frame++;
             current_frame %= spr2->frame_count;
-            spr2->elapsed = 0;
+            elapsed = 0;
         }
     } 
     term_assets(&assets);

engine/EC.h

@@ -186,7 +186,6 @@ typedef struct Sprite {
     Vector2 origin;
     Vector2 anchor;
     int frame_count;
-    int elapsed;
     int speed;
     char* name;
 } Sprite_t;
@@ -207,6 +206,11 @@ typedef struct _CSprite_t {
     bool pause;
     int current_frame;
     float fractional;
+    float rotation; // Degree
+    float rotation_speed; // Degree / s
+    int elapsed;
+    Vector2 offset;
+    Color colour;
 } CSprite_t;
 
 typedef struct _CMoveable_t {

engine/assets.c

@@ -530,24 +530,36 @@ LevelPack_t* get_level_pack(Assets_t* assets, const char* name)
 
 void draw_sprite(Sprite_t* spr, int frame_num, Vector2 pos, float rotation, bool flip_x)
 {
+    draw_sprite_pro(
+        spr, frame_num, pos, rotation, flip_x ? 1: 0,
+        (Vector2){1, 1}, WHITE
+    );
+}
+
+void draw_sprite_pro(Sprite_t* spr, int frame_num, Vector2 pos, float rotation, uint8_t flip, Vector2 scale, Color colour)
+{
+    if (frame_num >= spr->frame_count) frame_num = spr->frame_count - 1;
+    if (frame_num < 0) frame_num = 0;
     Rectangle rec = {
         spr->origin.x + spr->frame_size.x * frame_num,
         spr->origin.y,
-        spr->frame_size.x * (flip_x ? -1:1),
+        spr->frame_size.x * ((flip & 1) ? -1 : 1),
-        spr->frame_size.y
+        spr->frame_size.y * ((flip & 2) ? -1 : 1),
     };
-    //DrawTextureRec(*spr->texture, rec, pos, WHITE);
     Rectangle dest = {
-        .x = pos.x - spr->anchor.x,
+        .x = pos.x,
-        .y = pos.y - spr->anchor.y,
+        .y = pos.y,
-        .width = spr->frame_size.x,
+        .width = spr->frame_size.x * scale.x,
-        .height = spr->frame_size.y
+        .height = spr->frame_size.y * scale.y
     };
+    Vector2 anchor = spr->anchor;
+    anchor.x *= scale.x;
+    anchor.y *= scale.y;
     DrawTexturePro(
         *spr->texture,
         rec,
         dest,
-        spr->anchor,
+        anchor,
-        rotation, WHITE
+        rotation, colour
     );
 }

engine/assets.h

@@ -82,6 +82,7 @@ Font* get_font(Assets_t* assets, const char* name);
 LevelPack_t* get_level_pack(Assets_t* assets, const char* name);
 
 void draw_sprite(Sprite_t* spr, int frame_num, Vector2 pos, float rotation, bool flip_x);
+void draw_sprite_pro(Sprite_t* spr, int frame_num, Vector2 pos, float rotation, uint8_t flip, Vector2 scale, Color colour);
 
 typedef struct SFX
 {

particle_test.c

@@ -63,7 +63,6 @@ int main(void)
         .origin = (Vector2){0, 0},
         .anchor = (Vector2){tex.width / 2, tex.height / 2},
         .frame_count = 0,
-        .elapsed = 0,
         .speed = 0,
         .name = "test_spr"
     };

run.sh

@@ -1,3 +1,3 @@
 #!/bin/sh
 
-LSAN_OPTIONS=suppressions=./lsan_supp.txt  ./build/$1
+./build.sh && LSAN_OPTIONS=suppressions=./lsan_supp.txt  ./build/$1

scenes/constants.h

@@ -21,9 +21,9 @@
 #define MOVE_ACCEL 1300
 
 #ifndef TILE16_SIZE
-#define PLAYER_WIDTH 30
+#define PLAYER_WIDTH 28
 #define PLAYER_HEIGHT 42
-#define PLAYER_C_WIDTH 30
+#define PLAYER_C_WIDTH 28
 #define PLAYER_C_HEIGHT 26
 #else
 #define PLAYER_WIDTH 14

scenes/game_systems.c

@@ -240,12 +240,18 @@ static Vector2 shift_bbox(Vector2 bbox, Vector2 new_bbox, AnchorPoint_t anchor)
 
 void destroy_entity(Scene_t* scene, TileGrid_t* tilemap, Entity_t* p_ent)
 {
+    Vector2 half_size = {0,0};
+    CBBox_t* p_bbox = get_component(p_ent, CBBOX_COMP_T);
+    if (p_bbox != NULL)
+    {
+        half_size = p_bbox->half_size;
+    }
     if (p_ent->m_tag == BOULDER_ENT_TAG)
     {
         ParticleEmitter_t emitter = {
             .spr = get_sprite(&scene->engine->assets, "p_rock"),
             .config = get_emitter_conf(&scene->engine->assets, "pe_burst"),
-            .position = p_ent->position,
+            .position = Vector2Add(p_ent->position, half_size),
             .n_particles = 5,
             .user_data = CONTAINER_OF(scene, LevelScene_t, scene),
             .update_func = &simple_particle_system_update,
@@ -259,7 +265,7 @@ void destroy_entity(Scene_t* scene, TileGrid_t* tilemap, Entity_t* p_ent)
         ParticleEmitter_t emitter = {
             .spr = get_sprite(&scene->engine->assets, (p_container->material == WOODEN_CONTAINER) ? "p_wood" : "p_metal"),
             .config = get_emitter_conf(&scene->engine->assets, "pe_burst"),
-            .position = p_ent->position,
+            .position = Vector2Add(p_ent->position, half_size),
             .n_particles = 5,
             .user_data = CONTAINER_OF(scene, LevelScene_t, scene),
             .update_func = &simple_particle_system_update,
@@ -272,7 +278,7 @@ void destroy_entity(Scene_t* scene, TileGrid_t* tilemap, Entity_t* p_ent)
         ParticleEmitter_t emitter = {
             .spr = get_sprite(&scene->engine->assets, "p_wood"),
             .config = get_emitter_conf(&scene->engine->assets, "pe_burst"),
-            .position = p_ent->position,
+            .position = Vector2Add(p_ent->position, half_size),
             .n_particles = 5,
             .user_data = CONTAINER_OF(scene, LevelScene_t, scene),
             .update_func = &simple_particle_system_update,
@@ -283,7 +289,7 @@ void destroy_entity(Scene_t* scene, TileGrid_t* tilemap, Entity_t* p_ent)
         ParticleEmitter_t emitter2 = {
             .spr = get_sprite(&scene->engine->assets, "p_coin"),
             .config = get_emitter_conf(&scene->engine->assets, "pe_single"),
-            .position = p_ent->position,
+            .position = Vector2Add(p_ent->position, half_size),
             .n_particles = 1,
             .user_data = CONTAINER_OF(scene, LevelScene_t, scene),
             .update_func = &simple_particle_system_update,
@@ -298,7 +304,7 @@ void destroy_entity(Scene_t* scene, TileGrid_t* tilemap, Entity_t* p_ent)
         ParticleEmitter_t emitter = {
             .spr = get_sprite(&scene->engine->assets, "p_arrow"),
             .config = get_emitter_conf(&scene->engine->assets, "pe_burst"),
-            .position = p_ent->position,
+            .position = Vector2Add(p_ent->position, half_size),
             .n_particles = 2,
             .user_data = CONTAINER_OF(scene, LevelScene_t, scene),
             .update_func = &simple_particle_system_update,
@@ -1486,7 +1492,7 @@ void state_transition_update_system(Scene_t* scene)
             ParticleEmitter_t emitter = {
                 .spr = get_sprite(&scene->engine->assets, "p_water"),
                 .config = get_emitter_conf(&scene->engine->assets, "pe_burst"),
-                .position = p_ent->position,
+                .position = Vector2Add(p_ent->position, p_bbox->half_size),
                 .n_particles = 5,
                 .user_data = (CONTAINER_OF(scene, LevelScene_t, scene)),
                 .update_func = &simple_particle_system_update,
@@ -2002,7 +2008,6 @@ void sprite_animation_system(Scene_t* scene)
         {
             next_idx = p_cspr->transition_func(p_ent);
         }
-        if (p_cspr->pause) return;
 
         bool reset = p_cspr->current_idx != next_idx;
         p_cspr->current_idx = next_idx;
@@ -2010,7 +2015,14 @@ void sprite_animation_system(Scene_t* scene)
         SpriteRenderInfo_t spr = p_cspr->sprites[p_cspr->current_idx];
         if (spr.sprite == NULL) continue;
 
-        if (reset) p_cspr->current_frame = 0;
+        if (reset)
+        {
+            p_cspr->fractional = 0;
+            p_cspr->elapsed = 0;
+            p_cspr->current_frame = 0;
+        }
+
+        if (spr.sprite->speed == 0) continue;
 
         // Animate it (handle frame count)
         p_cspr->fractional += scene->delta_time;
@@ -2018,12 +2030,15 @@ void sprite_animation_system(Scene_t* scene)
         if (p_cspr->fractional > ANIM_FRAME_RATE)
         {
             p_cspr->fractional -= ANIM_FRAME_RATE;
-            spr.sprite->elapsed++;
+            p_cspr->elapsed++;
-            if (spr.sprite->elapsed == spr.sprite->speed)
+            if (p_cspr->elapsed == spr.sprite->speed)
+            {
+                p_cspr->elapsed = 0;
+                if (!p_cspr->pause)
                 {
                     p_cspr->current_frame++;
                     p_cspr->current_frame %= spr.sprite->frame_count;
-                spr.sprite->elapsed = 0;
+                }
             }
         }
     }