var i, numrain;
numrain = 25;
for (i = 0; i < numrain; i+=1) {
    var x, y, giveup;
    giveup = 0;
    x = random(view_wview[view_current]);
    y = random(view_hview[view_current]);
    while (collision_line(x,y,x+10,y+10,Obstacle,true,false)) {
        x = random(view_wview[view_current]);
        y = random(view_hview[view_current]);
        giveup += 1;
        if (giveup > 20) { // Prevent infinite loop if all of map collides
            x = -100;
            y = -100;
            break;
        }
    }
    draw_line_width_color(x, y, x+10, y+10, 1, c_aqua, c_aqua);
}