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Copy pathPerspectiveCamera.js
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134 lines (110 loc) · 3.35 KB
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/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2018 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
var Camera = require('./Camera');
var Class = require('../../../src/utils/Class');
var Vector3 = require('../../../src/math/Vector3');
// Local cache vars
var tmpVec3 = new Vector3();
/**
* @classdesc
* [description]
*
* @class PerspectiveCamera
* @extends Phaser.Cameras.Sprite3D.Camera
* @memberOf Phaser.Cameras.Sprite3D
* @constructor
* @since 3.0.0
*
* @param {Phaser.Scene} scene - [description]
* @param {integer} [fieldOfView=80] - [description]
* @param {integer} [viewportWidth=0] - [description]
* @param {integer} [viewportHeight=0] - [description]
*/
var PerspectiveCamera = new Class({
Extends: Camera,
// FOV is converted to radians automatically
initialize:
function PerspectiveCamera (scene, fieldOfView, viewportWidth, viewportHeight)
{
if (fieldOfView === undefined) { fieldOfView = 80; }
if (viewportWidth === undefined) { viewportWidth = 0; }
if (viewportHeight === undefined) { viewportHeight = 0; }
Camera.call(this, scene);
/**
* [description]
*
* @name Phaser.Cameras.Sprite3D.PerspectiveCamera#viewportWidth
* @type {integer}
* @default 0
* @since 3.0.0
*/
this.viewportWidth = viewportWidth;
/**
* [description]
*
* @name Phaser.Cameras.Sprite3D.PerspectiveCamera#viewportHeight
* @type {integer}
* @default 0
* @since 3.0.0
*/
this.viewportHeight = viewportHeight;
/**
* [description]
*
* @name Phaser.Cameras.Sprite3D.PerspectiveCamera#fieldOfView
* @type {integer}
* @default 80
* @since 3.0.0
*/
this.fieldOfView = fieldOfView * Math.PI / 180;
this.update();
},
/**
* [description]
*
* @method Phaser.Cameras.Sprite3D.PerspectiveCamera#setFOV
* @since 3.0.0
*
* @param {number} value - [description]
*
* @return {Phaser.Cameras.Sprite3D.PerspectiveCamera} [description]
*/
setFOV: function (value)
{
this.fieldOfView = value * Math.PI / 180;
return this;
},
/**
* [description]
*
* @method Phaser.Cameras.Sprite3D.PerspectiveCamera#update
* @since 3.0.0
*
* @return {Phaser.Cameras.Sprite3D.PerspectiveCamera} [description]
*/
update: function ()
{
var aspect = this.viewportWidth / this.viewportHeight;
// Create a perspective matrix for our camera
this.projection.perspective(
this.fieldOfView,
aspect,
Math.abs(this.near),
Math.abs(this.far)
);
// Build the view matrix
tmpVec3.copy(this.position).add(this.direction);
this.view.lookAt(this.position, tmpVec3, this.up);
// Projection * view matrix
this.combined.copy(this.projection).multiply(this.view);
// Invert combined matrix, used for unproject
this.invProjectionView.copy(this.combined).invert();
this.billboardMatrixDirty = true;
this.updateChildren();
return this;
}
});
module.exports = PerspectiveCamera;