func (t *t_renderer) drawAgent(x, y int) {
var rect sdl.Rect
rect.X = 10 + int32(x*TILE_SIZE)
rect.Y = 10 + int32(y*TILE_SIZE)
rect.W = 30
rect.H = 30
t.renderer.SetDrawColor(0, 0, 255, 255)
t.renderer.FillRect(&rect)
}
func (t *t_renderer) drawTile(x, y int, r, g, b, a uint8) {
x = TILE_SIZE * x
y = TILE_SIZE * y
t.renderer.SetDrawColor(r, g, b, a)
var rect sdl.Rect
rect.X = int32(x)
rect.Y = int32(y)
rect.W = TILE_SIZE
rect.H = TILE_SIZE
t.renderer.FillRect(&rect)
}