-static world_water;
-VG_STATIC void world_water_init(void);
-
-VG_STATIC void water_set_surface( world_instance *world, float height );
-VG_STATIC void render_water_texture( world_instance *world, camera *cam,
- int layer_depth );
-VG_STATIC void render_water_surface( world_instance *world, camera *cam );