mirror of
https://github.com/photonstorm/phaser
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124 lines
3.8 KiB
JavaScript
124 lines
3.8 KiB
JavaScript
/**
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* @author Richard Davey <rich@photonstorm.com>
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* @copyright 2018 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
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*/
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var GameObject = require('../GameObject');
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var Utils = require('../../renderer/webgl/Utils');
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/**
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* Renders this Game Object with the WebGL Renderer to the given Camera.
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* The object will not render if any of its renderFlags are set or it is being actively filtered out by the Camera.
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* This method should not be called directly. It is a utility function of the Render module.
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*
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* @method Phaser.GameObjects.Blitter#renderWebGL
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* @since 3.0.0
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* @private
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*
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* @param {Phaser.Renderer.WebGL.WebGLRenderer} renderer - A reference to the current active WebGL renderer.
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* @param {Phaser.GameObjects.Blitter} src - The Game Object being rendered in this call.
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* @param {number} interpolationPercentage - Reserved for future use and custom pipelines.
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* @param {Phaser.Cameras.Scene2D.Camera} camera - The Camera that is rendering the Game Object.
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* @param {Phaser.GameObjects.Components.TransformMatrix} parentMatrix - This transform matrix is defined if the game object is nested
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*/
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var BlitterWebGLRenderer = function (renderer, src, interpolationPercentage, camera, parentMatrix)
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{
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if (GameObject.RENDER_MASK !== src.renderFlags || (src.cameraFilter > 0 && (src.cameraFilter & camera._id)))
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{
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return;
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}
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var pipeline = this.pipeline;
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renderer.setPipeline(pipeline);
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var cameraScrollX = camera.scrollX * src.scrollFactorX;
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var cameraScrollY = camera.scrollY * src.scrollFactorY;
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var matrix = pipeline._tempCameraMatrix;
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matrix.copyFrom(camera.matrix);
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if (parentMatrix)
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{
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matrix.multiplyWithOffset(parentMatrix, -cameraScrollX, -cameraScrollY);
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cameraScrollX = 0;
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cameraScrollY = 0;
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}
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var list = src.getRenderList();
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var blitterX = src.x - cameraScrollX;
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var blitterY = src.y - cameraScrollY;
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var prevTextureSourceIndex = -1;
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var tintEffect = false;
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var alpha = camera.alpha * src.alpha;
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var getTint = Utils.getTintAppendFloatAlpha;
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var roundPixels = camera.roundPixels;
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for (var index = 0; index < list.length; index++)
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{
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var bob = list[index];
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var frame = bob.frame;
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var bobAlpha = bob.alpha * alpha;
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if (bobAlpha === 0)
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{
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continue;
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}
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var width = frame.width;
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var height = frame.height;
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var x = blitterX + bob.x + frame.x;
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var y = blitterY + bob.y + frame.y;
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if (bob.flipX)
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{
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width *= -1;
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x += frame.width;
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}
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if (bob.flipY)
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{
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height *= -1;
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y += frame.height;
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}
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var xw = x + width;
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var yh = y + height;
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var tx0 = x * matrix.a + y * matrix.c + matrix.e;
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var ty0 = x * matrix.b + y * matrix.d + matrix.f;
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var tx1 = xw * matrix.a + yh * matrix.c + matrix.e;
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var ty1 = xw * matrix.b + yh * matrix.d + matrix.f;
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var tint = getTint(0xffffff, bobAlpha);
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var uvs = frame.uvs;
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// Bind texture only if the Texture Source is different from before
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if (frame.sourceIndex !== prevTextureSourceIndex)
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{
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pipeline.setTexture2D(frame.glTexture, 0);
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prevTextureSourceIndex = frame.sourceIndex;
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}
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if (roundPixels)
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{
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tx0 |= 0;
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ty0 |= 0;
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tx1 |= 0;
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ty1 |= 0;
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}
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// TL x/y, BL x/y, BR x/y, TR x/y
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if (pipeline.batchVertices(tx0, ty0, tx0, ty1, tx1, ty1, tx1, ty0, uvs, tint, tint, tint, tint, tintEffect))
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{
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prevTextureSourceIndex = -1;
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}
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}
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};
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module.exports = BlitterWebGLRenderer;
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