phaser/src/renderer/webgl/mvp/Scale.js
2020-07-31 13:41:29 +01:00

42 lines
1.3 KiB
JavaScript

/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2020 Photon Storm Ltd.
* @license {@link https://opensource.org/licenses/MIT|MIT License}
*/
/**
* Scales the model matrix by the given values.
*
* @method Phaser.Renderer.WebGL.MVP.Scale
* @since 3.50.0
*
* @param {Phaser.Renderer.WebGL.Pipelines.ModelViewProjection} model - The Model View Projection object.
* @param {number} x - The x component.
* @param {number} y - The y component.
* @param {number} z - The z component.
*
* @return {Phaser.Renderer.WebGL.Pipelines.ModelViewProjection} The Model View Projection object.
*/
var Scale = function (model, x, y, z)
{
var modelMatrix = model.modelMatrix;
modelMatrix[0] = modelMatrix[0] * x;
modelMatrix[1] = modelMatrix[1] * x;
modelMatrix[2] = modelMatrix[2] * x;
modelMatrix[3] = modelMatrix[3] * x;
modelMatrix[4] = modelMatrix[4] * y;
modelMatrix[5] = modelMatrix[5] * y;
modelMatrix[6] = modelMatrix[6] * y;
modelMatrix[7] = modelMatrix[7] * y;
modelMatrix[8] = modelMatrix[8] * z;
modelMatrix[9] = modelMatrix[9] * z;
modelMatrix[10] = modelMatrix[10] * z;
modelMatrix[11] = modelMatrix[11] * z;
model.modelMatrixDirty = true;
return model;
};
module.exports = Scale;