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Qt6QMLBeginnersCode/12-TransformsTransitionsAnimations/6-SmoothedAnimation/Main.qml

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+import QtQuick
+
+Window {
+    width: 640
+    height: 480
+    visible: true
+    title: qsTr("SmoothedAnimation")
+
+    /*
+    Rectangle{
+        id: containerRectId
+        anchors.fill: parent
+        color: "beige"
+
+        Rectangle{
+            id: containedRectId
+            width: 100
+            height: 100
+            x: 50
+            y: 50
+            color: "dodgerblue"
+
+
+            SmoothedAnimation{
+                id: smoothedAnimationId
+                target: containedRectId
+                property: "x"
+                duration: 2000
+            }
+        }
+    }
+
+    MouseArea{
+        anchors.fill: parent
+        onClicked: function(mouse){
+            smoothedAnimationId.from = containedRectId.x
+            smoothedAnimationId.to = mouse.x
+            smoothedAnimationId.start()
+        }
+    }
+    */
+
+    Rectangle{
+        anchors.fill: parent
+        color: "lightgray"
+
+        Rectangle {
+            //The rectangle doing the tracking
+            width: 60; height: 60
+            x: rect1.x - 5; y: rect1.y - 5
+            color: "green"
+
+            Behavior on x { SmoothedAnimation { velocity: 200 } }
+            Behavior on y { SmoothedAnimation { velocity: 200 } }
+        }
+
+        Rectangle {
+            //The rectangle being tracked.
+            id: rect1
+            width: 50; height: 50
+            color: "red"
+        }
+
+        focus: true
+        Keys.onRightPressed: rect1.x = rect1.x + 100
+        Keys.onLeftPressed: rect1.x = rect1.x - 100
+        Keys.onUpPressed: rect1.y = rect1.y - 100
+        Keys.onDownPressed: rect1.y = rect1.y + 100
+    }
+
+}