/*A ziggurat type building, characterized by multiple setback on all sides.*/
SIZE = 1.0;
FLOORS = 12;//floors per level
LEVELS = 6;//total height is floors*levels

//textures
win = new UniformTexture();
win.diffuseColor.setRGB(0.3,0.3,0.3);
win.specularity = 0.4f;
win.shininess = 1.0f;
red = new UniformTexture();
red.diffuseColor.setHSV(10,0.4f,0.8f);
light = new UniformTexture();
light.diffuseColor.setHSV(40,0.3f,0.9f);
roof = new UniformTexture();
roof.diffuseColor.setHSV(115,0.4f,0.4f);

void layer(int n, double offset)
{
    int i;
    box = new Cube(n*SIZE,FLOORS*SIZE,n*SIZE);
    box.setTexture(win, win.getDefaultMapping(box));
    pos = new Vec3(0,offset+FLOORS*SIZE/2,0);
    script.addObject(box, new CoordinateSystem(pos, 0,0,0));
    
    box = new Cube((n+0.2)*SIZE,0.3*SIZE,(n+0.2)*SIZE);
    box.setTexture(light, light.getDefaultMapping(box));
    for (i=0;i<=FLOORS;i++)
    {
        pos = new Vec3(0,offset+i*SIZE,0);
        script.addObject(box, new CoordinateSystem(pos, 0,0,0));
    }
    
    box = new Cube(0.3*SIZE,(FLOORS+0.7)*SIZE,0.3*SIZE);
    box.setTexture(red, red.getDefaultMapping(box));
    box2 = new Cube(0.5*SIZE,(FLOORS+0.5)*SIZE,0.2*SIZE);
    box2.setTexture(light, light.getDefaultMapping(box));
    for (i=1;i<n;i++)
    {
        pos = new Vec3(i*SIZE-n*SIZE/2,offset+FLOORS*SIZE/2,(n+0.15)*SIZE/2);
        script.addObject(box, new CoordinateSystem(pos, 0,0,0));
        script.addObject(box2, new CoordinateSystem(pos, 0,0,0));
        
        pos = new Vec3((n+0.15)*SIZE/2,offset+FLOORS*SIZE/2,i*SIZE-n*SIZE/2);
        script.addObject(box, new CoordinateSystem(pos, 0,0,0));
        script.addObject(box2, new CoordinateSystem(pos, 0,90,0));
        
        pos = new Vec3(i*SIZE-n*SIZE/2,offset+FLOORS*SIZE/2,-(n+0.15)*SIZE/2);
        script.addObject(box, new CoordinateSystem(pos, 0,0,0));
        script.addObject(box2, new CoordinateSystem(pos, 0,0,0));
        
        pos = new Vec3(-(n+0.15)*SIZE/2,offset+FLOORS*SIZE/2,i*SIZE-n*SIZE/2);
        script.addObject(box, new CoordinateSystem(pos, 0,0,0));
        script.addObject(box2, new CoordinateSystem(pos, 0,90,0));
    }
    
    //corners
    box = new Cube(0.5*SIZE,(FLOORS+0.5)*SIZE,0.4*SIZE);
    box.setTexture(light, light.getDefaultMapping(box));
    xx = (n-0.2)*SIZE/2.0;
    pos = new Vec3(xx,offset+FLOORS*SIZE/2,xx);
    script.addObject(box, new CoordinateSystem(pos, 0,-45,0));
    pos = new Vec3(-xx,offset+FLOORS*SIZE/2,xx);
    script.addObject(box, new CoordinateSystem(pos, 0,45,0));
    pos = new Vec3(xx,offset+FLOORS*SIZE/2,-xx);
    script.addObject(box, new CoordinateSystem(pos, 0,45,0));
    pos = new Vec3(-xx,offset+FLOORS*SIZE/2,-xx);
    script.addObject(box, new CoordinateSystem(pos, 0,-45,0));
    
    box = new Cube(0.3*SIZE,(FLOORS+0.4)*SIZE,0.1*SIZE);
    box.setTexture(red, red.getDefaultMapping(box));
    xx = (n+0.15)*SIZE/2.0;
    pos = new Vec3(xx,offset+FLOORS*SIZE/2,xx);
    script.addObject(box, new CoordinateSystem(pos, 0,-45,0));
    pos = new Vec3(-xx,offset+FLOORS*SIZE/2,xx);
    script.addObject(box, new CoordinateSystem(pos, 0,45,0));
    pos = new Vec3(xx,offset+FLOORS*SIZE/2,-xx);
    script.addObject(box, new CoordinateSystem(pos, 0,45,0));
    pos = new Vec3(-xx,offset+FLOORS*SIZE/2,-xx);
    script.addObject(box, new CoordinateSystem(pos, 0,-45,0));
}

//put the layers together
for (k=0;k<LEVELS;k++)
{
    layer(8+LEVELS-k-1,k*FLOORS*SIZE);
}

//top
void mesh(double x, double y, double z, double cut, Vec3 p)
{
        x2 = x - cut;
        z2 = z - cut;
        vertices = new Vec3[8]; // 8 vertices + 6 faces
        vertices[0] = new Vec3(-x/2.0, -y/2.0, -z/2.0);
        vertices[1] = new Vec3(x/2.0, -y/2.0, -z/2.0);
        vertices[2] = new Vec3(x2/2.0, y/2.0, -z2/2.0);
        vertices[3] = new Vec3(-x2/2.0, y/2.0, -z2/2.0);
        vertices[4] = new Vec3(-x/2.0, -y/2.0, z/2.0);
        vertices[5] = new Vec3(x/2.0, -y/2.0, z/2.0);
        vertices[6] = new Vec3(x2/2.0, y/2.0, z2/2.0);
        vertices[7] = new Vec3(-x2/2.0, y/2.0, z2/2.0);
        //triangular faces
        int[][] faces = {{ 0, 3, 2}, { 0, 2, 1}, { 0, 1, 5}, { 0, 5, 4}, { 0, 4, 7}, {0, 7, 3},
            { 6, 5, 1}, { 6, 1, 2}, { 6, 2, 3}, { 6, 3, 7}, { 6, 7, 4}, {6, 4, 5}};
        mesh = new TriangleMesh(vertices, faces);
        mesh.setSmoothingMethod(0);
        mesh.setTexture(roof, roof.getDefaultMapping(mesh));
        //p = new Vec3(0.0, 0.0, 0.0);
        script.addObject(mesh, new CoordinateSystem(p, 0, 0, 0));
}
mesh(7.7*SIZE,4*SIZE,7.7*SIZE, 7*SIZE, new Vec3(0,FLOORS*SIZE*LEVELS+2*SIZE,0));