phaser/src/gameobjects/shape/arc/ArcWebGLRenderer.js
2019-05-10 16:15:04 +01:00

72 lines
2.4 KiB
JavaScript

/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2019 Photon Storm Ltd.
* @license {@link https://opensource.org/licenses/MIT|MIT License}
*/
var FillPathWebGL = require('../FillPathWebGL');
var StrokePathWebGL = require('../StrokePathWebGL');
/**
* Renders this Game Object with the WebGL Renderer to the given Camera.
* The object will not render if any of its renderFlags are set or it is being actively filtered out by the Camera.
* This method should not be called directly. It is a utility function of the Render module.
*
* @method Phaser.GameObjects.Arc#renderWebGL
* @since 3.13.0
* @private
*
* @param {Phaser.Renderer.WebGL.WebGLRenderer} renderer - A reference to the current active WebGL renderer.
* @param {Phaser.GameObjects.Arc} src - The Game Object being rendered in this call.
* @param {number} interpolationPercentage - Reserved for future use and custom pipelines.
* @param {Phaser.Cameras.Scene2D.Camera} camera - The Camera that is rendering the Game Object.
* @param {Phaser.GameObjects.Components.TransformMatrix} parentMatrix - This transform matrix is defined if the game object is nested
*/
var ArcWebGLRenderer = function (renderer, src, interpolationPercentage, camera, parentMatrix)
{
var pipeline = this.pipeline;
var camMatrix = pipeline._tempMatrix1;
var shapeMatrix = pipeline._tempMatrix2;
var calcMatrix = pipeline._tempMatrix3;
renderer.setPipeline(pipeline);
shapeMatrix.applyITRS(src.x, src.y, src.rotation, src.scaleX, src.scaleY);
camMatrix.copyFrom(camera.matrix);
if (parentMatrix)
{
// Multiply the camera by the parent matrix
camMatrix.multiplyWithOffset(parentMatrix, -camera.scrollX * src.scrollFactorX, -camera.scrollY * src.scrollFactorY);
// Undo the camera scroll
shapeMatrix.e = src.x;
shapeMatrix.f = src.y;
}
else
{
shapeMatrix.e -= camera.scrollX * src.scrollFactorX;
shapeMatrix.f -= camera.scrollY * src.scrollFactorY;
}
camMatrix.multiply(shapeMatrix, calcMatrix);
var dx = src._displayOriginX;
var dy = src._displayOriginY;
var alpha = camera.alpha * src.alpha;
if (src.isFilled)
{
FillPathWebGL(pipeline, calcMatrix, src, alpha, dx, dy);
}
if (src.isStroked)
{
StrokePathWebGL(pipeline, src, alpha, dx, dy);
}
};
module.exports = ArcWebGLRenderer;