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var size;
var start_angle;
var angle_decay;
function draw_branch(x, y, t)
{
if (t > 8)
return;
var sz = size * pow(0.5, t);
var angle = start_angle + angle_decay * t;
line(x, y, x+cos(angle)*sz, y-sin(angle)*sz);
line(x, y, x-cos(angle)*sz, y-sin(angle)*sz);
draw_branch(x+cos(angle)*sz, y-sin(angle)*sz, t+1);
draw_branch(x-cos(angle)*sz, y-sin(angle)*sz, t+1);
}
function setup()
{
createCanvas(700, 700);
stroke(0);
}
function draw()
{
size = parseFloat(document.getElementById("size").value);
start_angle = parseFloat(document.getElementById("angle").value);
angle_decay = parseFloat(document.getElementById("angledecay").value);
background(255);
draw_branch(width/2, height, 0);
}
function saveTree()
{
save("tree.png");
}
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