#include <stdlib.h>

#include <helianthus.h>

#include "drawing.h"


static double t = 0;
static int w = 0, h = 0;
static Framebuffer buffer;
static Animation texture;



void framebufferInit() {
	buffer = createFramebufferFromFile("data/sprite/snake.png");
	w = framebufferGetWidth(buffer);
	h = framebufferGetHeight(buffer);
	texture = createAnimationFromFramebuffer(buffer);
}


void framebufferDraw() {
	double step = 0.1;
	t += worldGetFrameTime();
	
	while(t > step) {
		saveState();
		target(buffer);
		strokeWidth(randomFloat()*64);
		stroke(colorByHSV(randomFloat()*360, 1, 1));
		point( randomFloat()*w, randomFloat()*h );
		restoreState();
		t -= step;
	}
	
	saveState();
	translate(1024 - 256, 256);
	rotate(30);
	rectTextured(texture, -0.5*w, -0.5*h, w, h);
	restoreState();
}