Project: Small World

Open #small-world

const tree = assemble()
               .above(minkowski(Cube(), Sphere())
                        .material('leaves')
                        .as('leaves'))
               .above(Cylinder(0.4, 2)
                        .material('wood'))
               .above();

const grass = Cube(10, 10, 1)
                .color('lightgreen')
                .material('grass')
                .below();
                
const field = Cube(10, 10, 2)
                .color('yellow')
                .material('paper')
                .below()
                .move(0, 0, 1);

const water = Cube(10, 10, 0.5)
                .color('blue')
                .material('water')
                .below()
                .move(0, 0, -0.5);

const mountain = () => hull(Square(10),
                            Point(Math.random() * 10 - 5,
                                  Math.random() * 10 - 5,
                                  Math.random() * 10),
                            Point(Math.random() * 10 - 5,
                                  Math.random() * 10 - 5,
                                  Math.random() * 10),                                                     
                            Point(Math.random() * 10 - 5,
                                  Math.random() * 10 - 5,
                                  Math.random() * 10),                                                     
                            Point(Math.random() * 10 - 5,
                                  Math.random() * 10 - 5,
                                  Math.random() * 10))
                          .material('rock')
                          .above()
                          .move(0, 0, -1);
                
const house = assemble()
                .above(Triangle(4)
                         .scale([0.5, 1])
                         .extrude(3)
                         .rotateY(-90)
                         .center()
                         .material('wood'))
                .above(Cube(3, 3, 2)
                         .material('brick'))
                .above();

const cloud = Sphere(5)
                .color('lightblue')
                .material('glass')
                .above()
                .move(0, 0, 20);

const tile = () => {
  let base;
  let feature;
  let skyFeature;
  
  base = grass;
  
  if (Math.random() < 0.3) {
    feature = tree;
  }
  
  if (Math.random() < 0.1) {
    feature = house;
  }
  
  if (Math.random() < 0.2) {
    base = field;
    feature = undefined;
  }

  if (Math.random() < 0.1) {
    base = water;
    feature = undefined;
  }
  
  if (Math.random() < 0.05) {
    base = mountain();
    feature = undefined;
  }
  
  return assemble(base, feature, skyFeature);
}
                                  
assemble(...numbers({ to: 20 * 20 })
              .map(n => [Math.floor(n / 20), n % 20])
              .map(([x, y]) => tile().move(x * 10, y * 10)));