gst interpolations, particle systems, timing and gui fix

1 files changed, 31 insertions, 1 deletions

diff --git a/gst/fxs.h b/gst/fxs.h
index 2be62af..5aeb138 100644
--- a/gst/fxs.h
+++ b/gst/fxs.h
@@ -3,22 +3,52 @@
 
 #include <SDL2/SDL.h> 
 
+#define FXS_BULLET_MAX 4096
+#define FXS_EXPLOSION_MAX 2048
+
 typedef struct {
     float from[2];
     float to[2];
     float starttime;
     float endtime;
     float size;
-    int color[3];
+    float color[3];
 } bullet;
 
 typedef struct {
+    float pos[2];
+    float vel[2];
+    float color[3];
+    float size;
+    float mass;
+    float lifetime;
+} particle;
+
+typedef struct {
+    float pos[2];
+    float force[2];
+    float friction;
+    particle parts[32];
+    int partslen;
+    float starttime;
+} explosion;
+
+typedef struct {
     bullet *bullets;
     int bulletslen;
+    explosion *explosions;
+    int explosionslen;
 } fxs;
 
 void fx_init (fxs *fx);
+
 void fx_add_bullet (fxs *fx, bullet *b);
+
+void fx_explosion_init (fxs *fx, explosion *e, 
+    float pos[], float vel[], float color[], float force[],
+    float spread, float speed, int n, float time, float lifetime);
+void fx_add_explosion (fxs *fx, explosion *e);
+
 void fx_process (fxs *fx, float time);
 void fx_render (SDL_Renderer *rend, fxs *fx, float cam[], float time);