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#include "lzy.h"
#include "cfg.h"
#include "rotrect.h"
#include "game.h"
#include <math.h>
double tick = 0;
static void
draw_square(double size, double angle)
{
rotrect(DISPLAY_WIDTH / 2.0, DISPLAY_HEIGHT / 2.0, size, size, angle);
}
void
background_update(Game *g)
{
if (game_entity_count(g, entity_type("player")) > 0)
tick += 1.0;
else
tick += 0.25;
}
void
background_draw(void)
{
LZY_DrawSetColor(BLACK);
draw_square(300 * sin(tick / 50), tick / 40);
draw_square(300 * sin(tick / 40), tick / 30);
draw_square(300 * sin(tick / 30), tick / 20);
}
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