29 lines
553 B
C
29 lines
553 B
C
#include "camera.h"
|
|
#include "map.h"
|
|
|
|
Position camera_to_camera_position(Camera *cam, Position *pos)
|
|
{
|
|
return (Position) {
|
|
pos->x - cam->pos.x,
|
|
pos->y - cam->pos.y
|
|
};
|
|
}
|
|
|
|
void camera_follow_position(Camera *cam, Position *pos)
|
|
{
|
|
unsigned int room_width, room_height;
|
|
|
|
room_width = MAP_ROOM_WIDTH * TILE_DIMENSION;
|
|
room_height = MAP_ROOM_HEIGHT * TILE_DIMENSION;
|
|
|
|
if (pos->x <= 0)
|
|
cam->pos.x = 0;
|
|
else
|
|
cam->pos.x = pos->x - (pos->x % room_width);
|
|
|
|
if (pos->y <= 0)
|
|
cam->pos.y = 0;
|
|
else
|
|
cam->pos.y = pos->y - (pos->y % room_height);
|
|
}
|