feat: 第一次上传代码

node_modules/lottie-web/player/js/effects/TransformEffect.js

@@ -0,0 +1,44 @@
+import effectTypes from '../utils/helpers/effectTypes';
+import Matrix from '../3rd_party/transformation-matrix';
+import { degToRads } from '../utils/common';
+
+function TransformEffect() {
+}
+
+TransformEffect.prototype.init = function (effectsManager) {
+  this.effectsManager = effectsManager;
+  this.type = effectTypes.TRANSFORM_EFFECT;
+  this.matrix = new Matrix();
+  this.opacity = -1;
+  this._mdf = false;
+  this._opMdf = false;
+};
+
+TransformEffect.prototype.renderFrame = function (forceFrame) {
+  this._opMdf = false;
+  this._mdf = false;
+  if (forceFrame || this.effectsManager._mdf) {
+    var effectElements = this.effectsManager.effectElements;
+    var anchor = effectElements[0].p.v;
+    var position = effectElements[1].p.v;
+    var isUniformScale = effectElements[2].p.v === 1;
+    var scaleHeight = effectElements[3].p.v;
+    var scaleWidth = isUniformScale ? scaleHeight : effectElements[4].p.v;
+    var skew = effectElements[5].p.v;
+    var skewAxis = effectElements[6].p.v;
+    var rotation = effectElements[7].p.v;
+    this.matrix.reset();
+    this.matrix.translate(-anchor[0], -anchor[1], anchor[2]);
+    this.matrix.scale(scaleWidth * 0.01, scaleHeight * 0.01, 1);
+    this.matrix.rotate(-rotation * degToRads);
+    this.matrix.skewFromAxis(-skew * degToRads, (skewAxis + 90) * degToRads);
+    this.matrix.translate(position[0], position[1], 0);
+    this._mdf = true;
+    if (this.opacity !== effectElements[8].p.v) {
+      this.opacity = effectElements[8].p.v;
+      this._opMdf = true;
+    }
+  }
+};
+
+export default TransformEffect;