// Pseudocode for a Julia set, adapted from Wikipedia:
// https://en.wikipedia.org/wiki/Julia_set#Pseudocode_for_Normal_Julia_Sets

for each tile (x, y) on the screen, do:
    // from map_coords, get:
    zx = complex real value of tile
    zy = complex imaginary value of tile

    iteration = 0
    max_iterations = 1000 (argument $a2 in render)

    while (zx*zx + zy*zy < 4 AND iteration < max_iterations)
    {
	// Set cx and cy to the real and imaginary parts of complex number
	// c = -0.8 + 0.156i
	// So cx = -0.8, and cy = 0.156
        xtemp = zx*zx - zy*zy
        zy = 2*zx*zy  + cy 
        zx = xtemp + cx
    
        iteration = iteration + 1 
    }

    if (iteration == max_iteration)
        print inSetColor and inSetSymbol;
    else
        print corresponding color and symbol;
}