X-Git-Url: https://jasonwoof.com/gitweb/?p=vor.git;a=blobdiff_plain;f=sprite.h;h=3cb2c0e4f5f619aae8f79e9c6748c740a48a85fa;hp=4c0cefdc107ccec500d6f145fb863beb26d381d3;hb=1d9107a3d43b3f57087edee14f1eaf7c1f3db54e;hpb=5c8f059629c2127848ce4051296d2f5897bf5c0f

diff --git a/sprite.h b/sprite.h
index 4c0cefd..3cb2c0e 100644
--- a/sprite.h
+++ b/sprite.h
@@ -8,13 +8,14 @@ typedef struct sprite Sprite;
 
 #define SPRITE(x) ((Sprite *) (x))
 
-#define BASE_SPRITE 0
-#define SHIP_SPRITE 1
-#define ROCK_SPRITE 2
+#define BASE 0
+#define SHIP 1
+#define ROCK 2
 #define N_TYPES 3
 
 struct sprite {
 	int8_t type;
+	int8_t flags;
 	Sprite *next;
 	float x, y;
 	float dx, dy;
@@ -22,25 +23,40 @@ struct sprite {
 	int w, h;
 	int mask_w;
 	uint32_t *mask;
+	uint32_t area;
 };
 
+#define MOVE 1
+#define DRAW 2
+#define COLLIDE 4
+
+#define COLLIDES(sprite) ((sprite)->flags & COLLIDE)
+
 Sprite *free_sprites[N_TYPES];  // lists of free sprites, by type.
 
+void do_collision(Sprite *a, Sprite *b);
+void collisions(void);
+
 void init_sprites(void);
+void reset_sprites(void);
 void add_sprite(Sprite *s);
 void move_sprite(Sprite *s);
 void move_sprites(void);
 
-int collides(Sprite *s);
-int pixel_collides(float x, float y);
+Sprite *collides(Sprite *s);
+Sprite * pixel_collides(float x, float y);
 void load_sprite(Sprite *sprite, char *filename);
 
+float sprite_mass(Sprite *s);
+void bounce(Sprite *a, Sprite *b);
+
 
 // extended sprites
 
 struct ship {
 	// core sprite fields
 	int8_t sprite_type;
+	int8_t flags;
 	struct ship *next;
 	float x, y;
 	float dx, dy;
@@ -48,6 +64,7 @@ struct ship {
 	int w, h;
 	int mask_w;
 	uint32_t *mask;
+	uint32_t area;
 	// SHIP extras
 	int lives;
 	int jets;
@@ -56,6 +73,7 @@ struct ship {
 struct rock {
 	// core sprite fields
 	int8_t sprite_type;
+	int8_t flags;
 	struct rock *next;
 	float x, y;
 	float dx, dy;
@@ -63,6 +81,7 @@ struct rock {
 	int w, h;
 	int mask_w;
 	uint32_t *mask;
+	uint32_t area;
 	// ROCK extras
 	int type;
 };
@@ -90,9 +109,10 @@ static inline void
 draw_sprite(Sprite *s)
 {
 	SDL_Rect dest;
-	if(s->type == NONE) return;
-	dest.x = s->x; dest.y = s->y;
-	SDL_BlitSurface(s->image, NULL, surf_screen, &dest);
+	if(s->flags & DRAW) {
+		dest.x = s->x; dest.y = s->y;
+		SDL_BlitSurface(s->image, NULL, surf_screen, &dest);
+	}
 }
 
 #endif // VOR_SPRITE_H