$fn=64;

// Parameters
tile_width = 100;
tile_length = 100;
base_thickness = 3;
sidewalk_width = 15;
curb_height = 2;

stripe_width = 4;
stripe_length = 24;
stripe_height = 0.6;
stripe_spacing = 10;

union() {
    // Main solid base for the entire tile
    cube([tile_width, tile_length, base_thickness]);

    // Left Sidewalk
    translate([0, 0, base_thickness])
        cube([sidewalk_width, tile_length, curb_height]);

    // Right Sidewalk
    translate([tile_width - sidewalk_width, 0, base_thickness])
        cube([sidewalk_width, tile_length, curb_height]);

    // Crosswalk Stripes (Zebra Crossing) centered on the road
    for (x = [25 : stripe_spacing : 75]) {
        translate([x - stripe_width/2, tile_length/2 - stripe_length/2, base_thickness])
            cube([stripe_width, stripe_length, stripe_height]);
    }

    // Road Center Lines (Dashed)
    // Bottom dash
    translate([tile_width/2 - (stripe_width/4), 10, base_thickness])
        cube([stripe_width/2, 15, stripe_height]);
        
    // Top dash
    translate([tile_width/2 - (stripe_width/4), tile_length - 25, base_thickness])
        cube([stripe_width/2, 15, stripe_height]);
}