Map rendering and camera movement.

1 files changed, 5 insertions, 2 deletions

diff --git a/sprite_system.c b/sprite_system.c
index 526c097..b94886e 100644
--- a/sprite_system.c
+++ b/sprite_system.c
@@ -5,7 +5,7 @@
 #include "world.h"
 
 void sprite_system(const World* world) {
-	int i;
+	int i, x, y;
 	unsigned bits;
 	const CSprite* sprite;
 	const CPosition* pos;
@@ -17,8 +17,11 @@ void sprite_system(const World* world) {
 			pos = &world->positions[i];
 			sprite = &world->sprites[i];
 
+			x = pos->x - world->cam_x;
+			y = pos->y - world->cam_y;
+
 			b = get_bitmap(sprite->id);
-			render_bitmap(b, pos->x >> fbits, pos->y >> fbits, &sprite->rect);
+			render_bitmap(b, x >> fbits, y >> fbits, &sprite->rect);
 		}
 	}
 }