var game = new ex.Engine({
  width: 600,
  height: 400,
  displayMode: ex.DisplayMode.FitScreenAndFill
});

var actor = new ex.Actor({
  pos: ex.vec(100, 100),
  width: 100,
  height: 100,
  color: ex.Color.Red
});
var moveRight = (amount: number) => {
  actor.vel.x = 100 * amount;
};
var moveLeft = (amount: number) => {
  actor.vel.x = -100 * amount;
};
var moveUp = (amount: number) => {
  actor.vel.y = -100 * amount;
};
var moveDown = (amount: number) => {
  actor.vel.y = 100 * amount;
};
var getLeftStickX = (gamepad: ex.Gamepad) => {
  return gamepad.getAxes(ex.Axes.LeftStickX);
};
var getLeftStickY = (gamepad: ex.Gamepad) => {
  return gamepad.getAxes(ex.Axes.LeftStickY);
};
actor.onInitialize = (engine) => {
  const mapper = engine.inputMapper;
  ex.Gamepads.MinAxisMoveThreshold = 0.1;
  // Move right
  mapper.on(({ keyboard }) => (keyboard.isHeld(ex.Keys.Right) ? 1 : 0), moveRight);
  mapper.on(({ gamepads }) => (gamepads.at(0).getButton(ex.Buttons.DpadRight) ? 1 : 0), moveRight);
  mapper.on(({ gamepads }) => (getLeftStickX(gamepads.at(0)) > 0 ? Math.abs(getLeftStickX(gamepads.at(0))) : 0), moveRight);
  mapper.on(
    ({ keyboard, pointers }) => (keyboard.isHeld(ex.Keys.Enter) && pointers.primary.lastWorldPos.x > actor.pos.x ? 1 : 0),
    moveRight
  );

  // Move left
  mapper.on(({ keyboard }) => (keyboard.isHeld(ex.Keys.Left) ? 1 : 0), moveLeft);
  mapper.on(({ gamepads }) => (gamepads.at(0).getButton(ex.Buttons.DpadLeft) ? 1 : 0), moveLeft);
  mapper.on(({ gamepads }) => (getLeftStickX(gamepads.at(0)) < 0 ? Math.abs(getLeftStickX(gamepads.at(0))) : 0), moveLeft);
  mapper.on(
    ({ keyboard, pointers }) => (keyboard.isHeld(ex.Keys.Enter) && pointers.primary.lastWorldPos.x < actor.pos.x ? 1 : 0),
    moveLeft
  );

  // Move up
  mapper.on(({ keyboard }) => (keyboard.isHeld(ex.Keys.Up) ? 1 : 0), moveUp);
  mapper.on(({ gamepads }) => (gamepads.at(0).getButton(ex.Buttons.DpadUp) ? 1 : 0), moveUp);
  mapper.on(({ gamepads }) => (getLeftStickY(gamepads.at(0)) < 0 ? Math.abs(getLeftStickY(gamepads.at(0))) : 0), moveUp);
  mapper.on(({ keyboard, pointers }) => (keyboard.isHeld(ex.Keys.Enter) && pointers.primary.lastWorldPos.y < actor.pos.y ? 1 : 0), moveUp);

  // Move down
  mapper.on(({ keyboard }) => (keyboard.isHeld(ex.Keys.Down) ? 1 : 0), moveDown);
  mapper.on(({ gamepads }) => (gamepads.at(0).getButton(ex.Buttons.DpadDown) ? 1 : 0), moveDown);
  mapper.on(({ gamepads }) => (getLeftStickY(gamepads.at(0)) > 0 ? Math.abs(getLeftStickY(gamepads.at(0))) : 0), moveDown);
  mapper.on(
    ({ keyboard, pointers }) => (keyboard.isHeld(ex.Keys.Enter) && pointers.primary.lastWorldPos.y > actor.pos.y ? 1 : 0),
    moveDown
  );
};
game.onPostUpdate = () => {
  actor.vel = ex.vec(0, 0);
};
game.currentScene.add(actor);

game.start();