[orx-keyframer] Add envelopes, remove repetitions

orx-keyframer/src/demo/kotlin/DemoEvelope01.kt

@@ -8,10 +8,9 @@ fun main() = application {
     program {
         class Animation: Keyframer() {
             val position by Vector2Channel(arrayOf("x", "y"))
-            val radius by DoubleChannel("x")
         }
         val animation = Animation()
-        animation.loadFromJson(URL(resourceUrl("/demo-simple-repetitions-01.json")))
+        animation.loadFromJson(URL(resourceUrl("/demo-envelope-01.json")))
         if (System.getProperty("takeScreenshot") == "true") {
             extend(SingleScreenshot()) {
                 this.outputFile = System.getProperty("screenshotPath")
@@ -19,7 +18,7 @@ fun main() = application {
         }
         extend {
             animation(seconds)
-            drawer.circle(animation.position, animation.radius)
+            drawer.circle(animation.position, 100.0)
         }
     }
 }

orx-keyframer/src/demo/resources/demo-envelope-01.json

@@ -0,0 +1,25 @@
+[
+  {
+    "time": 0.0,
+    "x": 320.0,
+    "y": 240.0
+  },
+  {
+    "time": 10.0,
+    "easing": "cubic-in-out",
+    "x": {
+      "envelope": [0.5, 1.0],
+      "value": 0.0
+    },
+    "y": {
+      "envelope": [0.4, 1.0],
+      "value": 0.0
+    }
+  },
+  {
+    "time": 20.0,
+    "x": 640.0,
+    "y": 480.0,
+    "easing": "cubic-in-out"
+  }
+]

orx-keyframer/src/demo/resources/demo-simple-repetitions-01.json

@@ -1,30 +0,0 @@
-[
-  {
-    "time": 0.0,
-    "x": 320.0,
-    "y": 240.0,
-    "radius": 0.0
-  },
-  {
-    "time": 3.0,
-    "repeat": {
-      "count": 5,
-      "keys": [
-        {
-          "duration": 1.0,
-          "easing": "cubic-in-out",
-          "x": 10.0,
-          "y": 4.0,
-          "radius": 400
-        },
-        {
-          "duration": 1.0,
-          "easing": "cubic-in-out",
-          "x": 630.0,
-          "y": 470.0,
-          "radius": 40
-        }
-      ]
-    }
-  }
-]