var Actions;
var camera, cameraPosition;
var cube, cubePosition, cubeRenderable, cubeMesh;

// init() is called via scriptManagerCallGlobal(), which pumps the asset
// system + job queue until any promise it returns settles - so it's safe
// to await include() here even though this runs before the main loop.
async function init() {
  Actions = await include("input.js");

  camera = new Entity();
  cameraPosition = camera.add(POSITION);
  camera.add(CAMERA);
  cameraPosition.position = new Vec3(3, 3, -6);
  cameraPosition.lookAt(new Vec3(0, 0, 0));

  cube = new Entity();
  cubePosition = cube.add(POSITION);
  cubeRenderable = cube.add(RENDERABLE);
  cubeMesh = Mesh.createCube();
  cubeRenderable.mesh = cubeMesh;
  cubeRenderable.color = Color.red();
}

// Runs every frame (including dynamic/interpolation frames) - use for
// smooth, purely presentational animation.
function update() {
  cubePosition.rotation.y += TIME.delta * 1.5;
  cubePosition.rotation.x += TIME.delta * 0.7;
}

// Runs once per fixed timestep only - use for gameplay logic that should
// be deterministic and independent of display refresh rate.
function fixedUpdate() {
  var move = 3.0 * TIME.delta;
  if(Input.isDown(Actions.LEFT))  cubePosition.position.x -= move;
  if(Input.isDown(Actions.RIGHT)) cubePosition.position.x += move;
  if(Input.isDown(Actions.UP))    cubePosition.position.z += move;
  if(Input.isDown(Actions.DOWN))  cubePosition.position.z -= move;
  if(Input.pressed(Actions.ACCEPT)) cubePosition.position = new Vec3(0, 0, 0);
}

function deinit() {
  cube.dispose();
  camera.dispose();
}