feat: 增加其他场景切换效果

assets/Scene/SwitchScene__PolkaDotsCurtain/Materials/PolkaDotsCurtain.effect

@@ -0,0 +1,89 @@
+// Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
+
+CCEffect %{
+  techniques:
+  - passes:
+    - vert: vs
+      frag: fs
+      blendState:
+        targets:
+        - blend: true
+      rasterizerState:
+        cullMode: none
+      properties:
+        texture: { value: white }
+        dots: {value: 80.0}
+        center: {value: [0, 1]}
+        time: {value: 0}
+}%
+
+CCProgram vs %{
+  precision highp float;
+
+  #include <cc-global>
+  #include <cc-local>
+
+  in vec3 a_position;
+  in vec4 a_color;
+  out vec4 v_color;
+
+  #if USE_TEXTURE
+  in vec2 a_uv0;
+  out vec2 v_uv0;
+  #endif
+
+  void main () {
+    vec4 pos = vec4(a_position, 1);
+
+    #if CC_USE_MODEL
+    pos = cc_matViewProj * cc_matWorld * pos;
+    #else
+    pos = cc_matViewProj * pos;
+    #endif
+
+    #if USE_TEXTURE
+    v_uv0 = a_uv0;
+    #endif
+
+    v_color = a_color;
+
+    gl_Position = pos;
+  }
+}%
+
+CCProgram fs %{
+  precision highp float;
+  uniform sampler2D texture;
+  uniform sampler2D texture2;
+  uniform Common {
+    vec2 center;
+    float dots;
+    float time;
+  };
+  float progress = time;
+  in mediump vec2 v_uv0;
+  in vec4 v_color;
+
+  vec4 getFromColor(vec2 uv) {
+    return texture(texture, uv);
+  }
+  vec4 getToColor(vec2 uv) {
+    return texture(texture2, uv);
+  }
+
+  vec4 transition(vec2 uv) {
+    // 计算当前UV坐标点到图像中心点的距离
+    float distanceToCenter = distance(uv, center);
+    // 计算UV坐标点映射到dots纹理中的位置，并计算该位置与纹理中心点的距离
+    float distanceToDotsCenter = distance(fract(uv * dots), vec2(0.5, 0.5));
+
+    // 比较UV坐标点到纹理中心点的距离与进度的比值，如果比值小于等于progress，
+    // 并且distanceToDotsCenter小于distanceToCenter，则认为需要切换到下一张图像
+    bool nextImage = distanceToDotsCenter < (progress / distanceToCenter);
+    return nextImage ? getToColor(uv) : getFromColor(uv);
+  }
+
+  void main () {
+      gl_FragColor = v_color * transition(v_uv0);
+  }
+}%

assets/Scene/SwitchScene__PolkaDotsCurtain/Materials/PolkaDotsCurtain.effect.meta

@@ -0,0 +1,17 @@
+{
+  "ver": "1.0.25",
+  "uuid": "b805e327-099f-4cb8-a66b-ebca7c96c0e7",
+  "compiledShaders": [
+    {
+      "glsl1": {
+        "vert": "\nprecision highp float;\nuniform mediump mat4 cc_matViewProj;\nuniform mat4 cc_matWorld;\nattribute vec3 a_position;\nattribute vec4 a_color;\nvarying vec4 v_color;\n#if USE_TEXTURE\nattribute vec2 a_uv0;\nvarying vec2 v_uv0;\n#endif\nvoid main () {\n  vec4 pos = vec4(a_position, 1);\n  #if CC_USE_MODEL\n  pos = cc_matViewProj * cc_matWorld * pos;\n  #else\n  pos = cc_matViewProj * pos;\n  #endif\n  #if USE_TEXTURE\n  v_uv0 = a_uv0;\n  #endif\n  v_color = a_color;\n  gl_Position = pos;\n}",
+        "frag": "\nprecision highp float;\nuniform sampler2D texture;\nuniform sampler2D texture2;\nuniform vec2 center;\nuniform float dots;\nuniform float time;\nfloat progress = time;\nvarying mediump vec2 v_uv0;\nvarying vec4 v_color;\nvec4 getFromColor(vec2 uv) {\n  return texture2D(texture, uv);\n}\nvec4 getToColor(vec2 uv) {\n  return texture2D(texture2, uv);\n}\nvec4 transition(vec2 uv) {\n  float distanceToCenter = distance(uv, center);\n  float distanceToDotsCenter = distance(fract(uv * dots), vec2(0.5, 0.5));\n  bool nextImage = distanceToDotsCenter < (progress / distanceToCenter);\n  return nextImage ? getToColor(uv) : getFromColor(uv);\n}\nvoid main () {\n    gl_FragColor = v_color * transition(v_uv0);\n}"
+      },
+      "glsl3": {
+        "vert": "\nprecision highp float;\nuniform CCGlobal {\n  highp   vec4 cc_time;\n  mediump vec4 cc_screenSize;\n  mediump vec4 cc_screenScale;\n  mediump vec4 cc_nativeSize;\n  highp   mat4 cc_matView;\n  mediump mat4 cc_matViewInv;\n  mediump mat4 cc_matProj;\n  mediump mat4 cc_matProjInv;\n  mediump mat4 cc_matViewProj;\n  mediump mat4 cc_matViewProjInv;\n  mediump vec4 cc_cameraPos;\n};\nuniform CCLocal {\n  mat4 cc_matWorld;\n  mat4 cc_matWorldIT;\n};\nin vec3 a_position;\nin vec4 a_color;\nout vec4 v_color;\n#if USE_TEXTURE\nin vec2 a_uv0;\nout vec2 v_uv0;\n#endif\nvoid main () {\n  vec4 pos = vec4(a_position, 1);\n  #if CC_USE_MODEL\n  pos = cc_matViewProj * cc_matWorld * pos;\n  #else\n  pos = cc_matViewProj * pos;\n  #endif\n  #if USE_TEXTURE\n  v_uv0 = a_uv0;\n  #endif\n  v_color = a_color;\n  gl_Position = pos;\n}",
+        "frag": "\nprecision highp float;\nuniform sampler2D texture;\nuniform sampler2D texture2;\nuniform Common {\n  vec2 center;\n  float dots;\n  float time;\n};\nfloat progress = time;\nin mediump vec2 v_uv0;\nin vec4 v_color;\nvec4 getFromColor(vec2 uv) {\n  return texture(texture, uv);\n}\nvec4 getToColor(vec2 uv) {\n  return texture(texture2, uv);\n}\nvec4 transition(vec2 uv) {\n  float distanceToCenter = distance(uv, center);\n  float distanceToDotsCenter = distance(fract(uv * dots), vec2(0.5, 0.5));\n  bool nextImage = distanceToDotsCenter < (progress / distanceToCenter);\n  return nextImage ? getToColor(uv) : getFromColor(uv);\n}\nvoid main () {\n    gl_FragColor = v_color * transition(v_uv0);\n}"
+      }
+    }
+  ],
+  "subMetas": {}
+}

assets/Scene/SwitchScene__PolkaDotsCurtain/Materials/PolkaDotsCurtain.mtl

@@ -0,0 +1,25 @@
+{
+  "__type__": "cc.Material",
+  "_name": "PolkaDotsCurtain",
+  "_objFlags": 0,
+  "_native": "",
+  "_effectAsset": {
+    "__uuid__": "b805e327-099f-4cb8-a66b-ebca7c96c0e7"
+  },
+  "_techniqueIndex": 0,
+  "_techniqueData": {
+    "0": {
+      "defines": {
+        "USE_TEXTURE": true
+      },
+      "props": {
+        "center": {
+          "__type__": "cc.Vec2",
+          "x": 0,
+          "y": 1
+        },
+        "dots": 80
+      }
+    }
+  }
+}

assets/Scene/SwitchScene__PolkaDotsCurtain/Materials/PolkaDotsCurtain.mtl.meta

@@ -0,0 +1,6 @@
+{
+  "ver": "1.0.3",
+  "uuid": "985a2d90-fd09-4d07-9d94-a50d5af116d9",
+  "dataAsSubAsset": null,
+  "subMetas": {}
+}