const T = api.THREE; const mat = (c, glow = false) => api.toon(c, {glow}); const ink = "#3a2230", stone = "#72528f", darkStone = "#503663"; const violet = "#a967ed", gold = "#f5c65e", wood = "#75465b"; const tower = new T.Group(); function box(parent, name, size, pos, color, rotY = 0, glow = false) { const m = new T.Mesh(new T.BoxGeometry(...size), mat(color, glow)); m.name = name; m.position.set(...pos); m.rotation.y = rotY; parent.add(m); return m; } function cyl(parent, name, top, bottom, height, pos, color, sides = 12) { const m = new T.Mesh(new T.CylinderGeometry(top, bottom, height, sides), mat(color)); m.name = name; m.position.set(...pos); parent.add(m); return m; } function ball(parent, name, size, pos, color, glow = false) { const m = new T.Mesh(new T.SphereGeometry(1, 14, 10), mat(color, glow)); m.name = name; m.scale.set(...size); m.position.set(...pos); parent.add(m); return m; } function bar(parent, name, a, b, radius, color, glow = false) { const start = new T.Vector3(...a), end = new T.Vector3(...b); const d = end.clone().sub(start); const m = new T.Mesh(new T.CylinderGeometry(radius, radius, d.length(), 8), mat(color, glow)); m.name = name; m.position.copy(start).add(end).multiplyScalar(0.5); m.quaternion.setFromUnitVectors(new T.Vector3(0, 1, 0), d.normalize()); parent.add(m); return m; } api.world({sky:"#485079", haze:"#7771a0", shadow:"#563a80"}); // Layered cliff with a flat summit and a flight of approach steps. cyl(tower, "cliff-base", 6.7, 7.4, 1.05, [0,0.53,0], "#5a426e", 10); cyl(tower, "cliff-middle", 6.45, 6.85, 1.15, [0,1.62,0], "#77518c", 11); cyl(tower, "cliff-top", 6.15, 6.48, 1.1, [0,2.72,0], "#8b65a0", 12); cyl(tower, "summit", 6.15, 6.2, 0.18, [0,3.27,0], "#699a83", 12); for (let i = 0; i < 12; i++) { const h = (i + 1) * 0.275; box(tower, "cliff-step", [2.25,h,0.58], [0,h/2,12.0-i*0.51], i%2 ? "#9d7db2" : "#ad8dbb"); } for (let i = 0; i < 14; i++) { const a = i * Math.PI * 2 / 14; const r = 5.55 + 0.25 * Math.sin(i * 2.7); const crystal = new T.Mesh(new T.ConeGeometry(0.19 + (i%3)*0.06, 0.7 + (i%4)*0.18, 5), mat(i%2 ? "#ee9bd7" : "#bb80ef")); crystal.position.set(Math.sin(a)*r, 3.75, Math.cos(a)*r); crystal.rotation.z = 0.16*Math.sin(i); tower.add(crystal); } // The shaft leans and narrows in crooked, overlapping sections. const sections = [ {y:5.25, h:4.0, bottom:2.65, top:2.42, x:0, tilt:-0.035}, {y:9.15, h:3.9, bottom:2.42, top:2.16, x:0.15, tilt:0.055}, {y:12.93, h:3.8, bottom:2.16, top:1.89, x:0.02, tilt:-0.06} ]; for (let i=0; i{ for(const {g,i} of orbiters){ const a=i*Math.PI*2/7+t*(i%2 ? 0.25 : 0.32); const p=tower.localToWorld(new T.Vector3(Math.sin(a)*(4.7+0.25*Math.sin(t+i)),7.0+i*1.15+0.3*Math.sin(t*1.4+i),Math.cos(a)*(4.7+0.25*Math.sin(t+i)))); g.position.copy(p); g.rotation.set(0.15*Math.sin(t+i),-a,0.18*Math.sin(t*1.1+i)); } for(let i=0;i0.23 && phase<0.32)); } owl.rotation.y=0.15+0.16*Math.sin(t*0.8); }); api.say="I built a crooked tower on a cliff, with a winding staircase, orbiting spellbooks and potions, and an owl watching the purple storm."; api.suggest=["Add a wizard waiting at the tower door","Turn the ground into a misty moor","Add a flying dragon above the tower","Put a glowing moon behind the clouds"];