move examples/follow.qml to visuals/qmlspringfollow.qml

3 files changed, 74 insertions, 0 deletions

diff --git a/examples/declarative/tvtennis/click.wav b/examples/declarative/tvtennis/click.wav
new file mode 100644
index 0000000..26c46f8
--- /dev/null
+++ b/examples/declarative/tvtennis/click.wav
diff --git a/examples/declarative/tvtennis/paddle.wav b/examples/declarative/tvtennis/paddle.wav
new file mode 100644
index 0000000..604e0e5
--- /dev/null
+++ b/examples/declarative/tvtennis/paddle.wav
diff --git a/examples/declarative/tvtennis/tvtennis.qml b/examples/declarative/tvtennis/tvtennis.qml
new file mode 100644
index 0000000..d39e913
--- /dev/null
+++ b/examples/declarative/tvtennis/tvtennis.qml
@@ -0,0 +1,74 @@
+import Qt 4.6
+
+Rectangle {
+    id: page
+    width: 640; height: 480
+    color: "Black"
+
+    // Make a ball to bounce
+    Rectangle {
+        // Add a property for the target y coordinate
+        property var targetY : page.height - 10
+        property var direction : "right"
+
+        id: ball
+        color: "Lime"
+        x: 20; width: 20; height: 20; z: 1
+
+        // Move the ball to the right and back to the left repeatedly
+        x: SequentialAnimation {
+            running: true; repeat: true
+            NumberAnimation { to: page.width - 40; duration: 2000 }
+            ScriptAction { script: Qt.playSound('paddle.wav') }
+            PropertyAction { target: ball; property: "direction"; value: "left" }
+            NumberAnimation { to: 20; duration: 2000 }
+            ScriptAction { script: Qt.playSound('paddle.wav') }
+            PropertyAction { target: ball; property: "direction"; value: "right" }
+        }
+
+        // Make y follow the target y coordinate, with a velocity of 200
+        y: SpringFollow { source: ball.targetY; velocity: 200 }
+
+        // Detect the ball hitting the top or bottom of the view and bounce it
+        onYChanged: {
+            if (y <= 0) {
+                Qt.playSound('click.wav');
+                targetY = page.height - 20;
+            } else if (y >= page.height - 20) {
+                Qt.playSound('click.wav');
+                targetY = 0;
+            }
+        }
+    }
+
+    // Place bats to the left and right of the view, following the y
+    // coordinates of the ball.
+    Rectangle {
+        id: leftBat
+        color: "Lime"
+        x: 2; width: 20; height: 90
+        y: SpringFollow {
+            source: ball.y - 45; velocity: 300
+            enabled: ball.direction == 'left'
+        }
+    }
+    Rectangle {
+        id: rightBat
+        color: "Lime"
+        x: page.width - 22; width: 20; height: 90
+        y: SpringFollow {
+            source: ball.y-45; velocity: 300
+            enabled: ball.direction == 'right'
+        }
+    }
+
+    // The rest, to make it look realistic, if neither ever scores...
+    Rectangle { color: "Lime"; x: page.width/2-80; y: 0; width: 40; height: 60 }
+    Rectangle { color: "Black"; x: page.width/2-70; y: 10; width: 20; height: 40 }
+    Rectangle { color: "Lime"; x: page.width/2+40; y: 0; width: 40; height: 60 }
+    Rectangle { color: "Black"; x: page.width/2+50; y: 10; width: 20; height: 40 }
+    Repeater {
+        model: page.height / 20
+        Rectangle { color: "Lime"; x: page.width/2-5; y: index * 20; width: 10; height: 10 }
+    }
+}