X-Git-Url: https://jasonwoof.com/gitweb/?p=vor.git;a=blobdiff_plain;f=sprite.h;h=75d7730b1f67cb2f8848f10e93746c4414f50fae;hp=e1216cf03cb5d452846b8c83d4233bf4e1641bfa;hb=110f0b2d1118b17f7ba1a0c7eeb2b01190ccec99;hpb=bb819ae60e78c875e66fe2de3ac7fa2b9824a1e5

diff --git a/sprite.h b/sprite.h
index e1216cf..75d7730 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;
@@ -25,9 +26,19 @@ struct sprite {
 	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);
@@ -44,6 +55,7 @@ void bounce(Sprite *a, Sprite *b);
 struct ship {
 	// core sprite fields
 	int8_t sprite_type;
+	int8_t flags;
 	struct ship *next;
 	float x, y;
 	float dx, dy;
@@ -60,6 +72,7 @@ struct ship {
 struct rock {
 	// core sprite fields
 	int8_t sprite_type;
+	int8_t flags;
 	struct rock *next;
 	float x, y;
 	float dx, dy;
@@ -95,9 +108,10 @@ 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