baseball.js

baseball.js

//
//  baseball.js
//  examples/toys
//
//  Created by Stephen Birarda on 10/20/15.
//  Copyright 2015 High Fidelity, Inc.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

var BAT_MODEL = "atp:07bdd769a57ff15ebe9331ae4e2c2eae8886a6792b4790cce03b4716eb3a81c7.fbx";
var BAT_COLLISION_SHAPE = "atp:1211ee12bc8ab0bb744e8582e15e728a00ca70a808550fc46d7284799b9a868a.obj";
var BAT_POSITION = { x: -0.54, y: 1.21, z: 2.57 }

var lastTriggerValue = 0.0;

function checkTriggers() {
  var rightTrigger = Controller.getTriggerValue(1);

  if (rightTrigger == 0) {
    if (lastTriggerValue > 0) {
      // the trigger was just released, swing the bat with an angular velocity
      var MAX_SWING_DEGREES_PER_SEC = 720.0;
      var newSwing = MAX_SWING_DEGREES_PER_SEC * lastTriggerValue;

      Entities.editEntity(bat, {
        angularVelocity: { x: 0.0, y: newSwing, z: 0.0 }
      });
    }
  } else {
    // the trigger is being held, set the rotation of the bat to show the wind up
    var MAX_ROTATION = -75.0;

    // add a rotation to the bat depending on the current value of the trigger
    var newRotation = Quat.fromPitchYawRollDegrees(0.0, MAX_ROTATION * rightTrigger, 0.0);

    Entities.editEntity(bat, {
      rotation: newRotation,
      angularVelocity: { x: 0.0, y: 0.0, z: 0.0 }
    });
  }
}

// add the fresh bat at home plate
var bat = Entities.addEntity({
    name: 'Bat',
    type: "Model",
    modelURL: BAT_MODEL,
    position: BAT_POSITION,
    compoundShapeURL: BAT_COLLISION_SHAPE
});

// hook the update so we can check controller triggers
Script.update.connect(checkTriggers);