$fn=64;

// --- Parameters ---
panel_width = 200;
panel_thickness = 3;

// Tab parameters (slots into the baseplate)
tab_width = 180;
tab_depth = 8;
tab_thickness = 2.6; // Slightly thinner than panel for clearance

// --- Modules ---

module building_skyline() {
    union() {
        // Solid lower wall for stability and figure backdrop
        cube([panel_width, 40, panel_thickness]);
        
        // Building 1 (Far Left)
        translate([0, 0, 0]) 
            cube([35, 110, panel_thickness]);
            
        // Building 2
        translate([35, 0, 0]) 
            cube([45, 85, panel_thickness]);
            
        // Building 3 (Center Tall - Stepped with Spire)
        translate([80, 0, 0]) {
            cube([50, 140, panel_thickness]);
            translate([10, 140, 0]) cube([30, 15, panel_thickness]);
            translate([22, 155, 0]) cube([6, 25, panel_thickness]); // Spire
        }
        
        // Building 4
        translate([130, 0, 0]) 
            cube([35, 105, panel_thickness]);
            
        // Building 5 (Far Right)
        translate([165, 0, 0]) {
            cube([35, 125, panel_thickness]);
            translate([5, 125, 0]) cube([25, 10, panel_thickness]);
        }
    }
}

module window_cutouts() {
    // Cutouts are made slightly taller than thickness to ensure clean manifold cuts
    cut_z = -1;
    cut_h = panel_thickness + 2;
    
    // Building 1 Windows
    for(x = [5 : 10 : 25]) {
        for(y = [50 : 15 : 100]) {
            translate([x, y, cut_z]) cube([5, 8, cut_h]);
        }
    }
    
    // Building 2 Windows (Horizontal Slits)
    for(y = [50 : 10 : 75]) {
        translate([40, y, cut_z]) cube([35, 4, cut_h]);
    }
    
    // Building 3 Windows (Dense Grid)
    for(x = [85 : 8 : 120]) {
        for(y = [55 : 12 : 130]) {
            translate([x, y, cut_z]) cube([4, 6, cut_h]);
        }
    }
    
    // Building 4 Windows (Large Panes)
    for(y = [50 : 15 : 95]) {
        translate([140, y, cut_z]) cube([15, 8, cut_h]);
    }
    
    // Building 5 Windows (Vertical staggered)
    for(x = [170 : 10 : 190]) {
        for(y = [50 : 10 : 115]) {
            translate([x, y, cut_z]) cube([5, 5, cut_h]);
        }
    }
}

module mounting_tab() {
    // Tab extends downwards from Y=0
    // Overlap by 0.1mm on Y axis to ensure manifold union
    translate([(panel_width - tab_width)/2, -tab_depth + 0.1, (panel_thickness - tab_thickness)/2])
        cube([tab_width, tab_depth, tab_thickness]);
}

// --- Main Assembly ---
// Centered around the X axis for easy placement
translate([-panel_width/2, 0, 0]) {
    union() {
        difference() {
            building_skyline();
            window_cutouts();
        }
        mounting_tab();
    }
}