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Copy pathOrthographicCamera.js
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181 lines (149 loc) · 4.41 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 OrthographicCamera
* @extends Phaser.Cameras.Sprite3D.Camera
* @memberOf Phaser.Cameras.Sprite3D
* @constructor
* @since 3.0.0
*
* @param {Phaser.Scene} scene - [description]
* @param {integer} [viewportWidth=0] - [description]
* @param {integer} [viewportHeight=0] - [description]
*/
var OrthographicCamera = new Class({
Extends: Camera,
initialize:
function OrthographicCamera (scene, viewportWidth, viewportHeight)
{
if (viewportWidth === undefined) { viewportWidth = 0; }
if (viewportHeight === undefined) { viewportHeight = 0; }
Camera.call(this, scene);
/**
* [description]
*
* @name Phaser.Cameras.Sprite3D.OrthographicCamera#viewportWidth
* @type {integer}
* @since 3.0.0
*/
this.viewportWidth = viewportWidth;
/**
* [description]
*
* @name Phaser.Cameras.Sprite3D.OrthographicCamera#viewportHeight
* @type {integer}
* @since 3.0.0
*/
this.viewportHeight = viewportHeight;
/**
* [description]
*
* @name Phaser.Cameras.Sprite3D.OrthographicCamera#_zoom
* @type {number}
* @private
* @since 3.0.0
*/
this._zoom = 1.0;
/**
* [description]
*
* @name Phaser.Cameras.Sprite3D.OrthographicCamera#near
* @type {number}
* @default 0
* @since 3.0.0
*/
this.near = 0;
this.update();
},
/**
* [description]
*
* @method Phaser.Cameras.Sprite3D.OrthographicCamera#setToOrtho
* @since 3.0.0
*
* @param {number} yDown - [description]
* @param {number} [viewportWidth] - [description]
* @param {number} [viewportHeight] - [description]
*
* @return {Phaser.Cameras.Sprite3D.OrthographicCamera} [description]
*/
setToOrtho: function (yDown, viewportWidth, viewportHeight)
{
if (viewportWidth === undefined) { viewportWidth = this.viewportWidth; }
if (viewportHeight === undefined) { viewportHeight = this.viewportHeight; }
var zoom = this.zoom;
this.up.set(0, (yDown) ? -1 : 1, 0);
this.direction.set(0, 0, (yDown) ? 1 : -1);
this.position.set(zoom * viewportWidth / 2, zoom * viewportHeight / 2, 0);
this.viewportWidth = viewportWidth;
this.viewportHeight = viewportHeight;
return this.update();
},
/**
* [description]
*
* @method Phaser.Cameras.Sprite3D.OrthographicCamera#update
* @since 3.0.0
*
* @return {Phaser.Cameras.Sprite3D.OrthographicCamera} [description]
*/
update: function ()
{
var w = this.viewportWidth;
var h = this.viewportHeight;
var near = Math.abs(this.near);
var far = Math.abs(this.far);
var zoom = this.zoom;
if (w === 0 || h === 0)
{
// What to do here... hmm?
return this;
}
this.projection.ortho(
zoom * -w / 2, zoom * w / 2,
zoom * -h / 2, zoom * h / 2,
near,
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;
},
/**
* [description]
*
* @name Phaser.Cameras.Sprite3D.OrthographicCamera#zoom
* @type {number}
* @since 3.0.0
*/
zoom: {
get: function ()
{
return this._zoom;
},
set: function (value)
{
this._zoom = value;
this.update();
}
}
});
module.exports = OrthographicCamera;