examples/mandelbrot.sloth


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36

#foreign fn print(str: String);
#foreign fn printint(i: Int);
#foreign fn as_int(x: Float) Int;

#foreign fn termpos(x: Int, y: Int) Void;

fn main() Int{ 
    var size: Float = 1000.0;
    var maxVal: Float = 4.0;
    var maxIter: Float = 50.0;
    var plane: Float = 4.0;
    var x: Float = 0.0;
    while x < size {
        var y: Float = 0.0;
        while y < size {
            var cReal: Float = (x * plane / size) - 2.0;
            var cImg: Float = (y * plane / size) - 2.0;
            var zReal: Float = 0.0;
            var zImg: Float = 0.0;
            var count: Float = 0.0;
            while (zReal * zReal + zImg * zImg) <= maxVal && count < maxIter {
                var temp: Float = (zReal * zReal) - (zImg * zImg) + cReal;
                zImg = 2.0 * zReal * zImg + cImg;
                zReal = temp;
                count = count + 1.0;
            }
            if as_int(count) == as_int(maxIter) {
                termpos(as_int(x), as_int(y));
                print("*");
            }
            y = y + 1.0;
        }
        x = x + 1.0;
    }
    return 0;
}