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| ** This file is part of the examples of the Qt Toolkit. |
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| ****************************************************************************/ |
| |
| import QtAudioEngine 1.0 |
| import QtQuick 2.0 |
| import "content" |
| |
| Rectangle { |
| color:"white" |
| id: root |
| width: 300 |
| height: 500 |
| property int radius : 100 |
| property real twoPi : Math.PI + Math.PI |
| |
| MyAudioEngine { |
| id:audioEngine |
| listener.position : Qt.vector3d(observer.x, observer.y, 0); |
| } |
| |
| Item { |
| id: circle |
| x: root.width / 2 |
| y: root.height / 2 |
| property real percent: 0 |
| SequentialAnimation on percent { |
| id: circleAnim1 |
| loops: Animation.Infinite |
| running: true |
| NumberAnimation { |
| duration: 12000 |
| from: 0 |
| to: 1 |
| } |
| |
| } |
| } |
| |
| Item { |
| id: holder |
| x: circle.x - Math.sin(circle.percent * root.twoPi) * root.radius - 50 |
| y: circle.y + Math.cos(circle.percent * root.twoPi) * root.radius + 50 |
| } |
| |
| Rectangle { |
| color:"green" |
| id: observer |
| width: 16 |
| height: 16 |
| x: circle.x - width / 2 |
| y: circle.y - height / 2 |
| } |
| Rectangle { |
| color:"red" |
| id: starship |
| width: 32 |
| height: 32 |
| x: holder.x - width / 2 |
| y: holder.y - height / 2 |
| } |
| MouseArea { |
| anchors.fill: parent |
| onClicked: { |
| audioEngine.sounds["effects"].play(Qt.vector3d(holder.x, holder.y, 0)); |
| } |
| } |
| |
| SoundInstance { |
| id: shipSound |
| engine:audioEngine |
| sound:"shipengine" |
| position: Qt.vector3d(holder.x, holder.y, 0) |
| direction: { |
| var a = (starship.rotation / 360) * root.twoPi; |
| return Qt.vector3d(Math.sin(a), -Math.cos(a), 0); |
| } |
| velocity: { |
| var speed = root.twoPi * root.radius / 4; |
| return shipSound.direction.times(speed); |
| } |
| |
| Component.onCompleted: shipSound.play() |
| } |
| |
| //Category Volume Control |
| Rectangle { |
| property variant volumeCtrl: audioEngine.categories["sfx"]; |
| id: volumeBar |
| x: 10 |
| y: 10 |
| width: 280 |
| height: 22 |
| color: "darkgray" |
| Rectangle { |
| id: volumeTracker |
| x: 0 |
| y: 0 |
| width: volumeBar.volumeCtrl.volume * parent.width; |
| height: parent.height |
| color: "lightgreen" |
| } |
| Text { |
| text: " volume:" + Math.round(volumeBar.volumeCtrl.volume * 100) +"%"; |
| font.pointSize: 16; |
| font.italic: true; |
| color: "black" |
| anchors.fill: parent |
| } |
| |
| MouseArea { |
| anchors.fill: parent |
| property bool m:false |
| onPressed: { |
| m = true; |
| updateVolume(mouse); |
| } |
| onReleased: { |
| m = false; |
| } |
| |
| onPositionChanged: { |
| if (m) { |
| updateVolume(mouse); |
| } |
| } |
| function updateVolume(mouse) { |
| volumeBar.volumeCtrl.volume = Math.min(1, Math.max(0, mouse.x / (volumeBar.width - 1))); |
| } |
| } |
| } |
| |
| //Information display |
| Item { |
| x:10 |
| y:32 |
| Text { |
| text: " [live instances] = " + audioEngine.liveInstances; |
| font.pointSize: 14; |
| font.italic: true; |
| color: "black" |
| anchors.fill: parent |
| } |
| } |
| |
| Item { |
| x:10 |
| y:60 |
| Text { |
| text: " [loading]=" + (audioEngine.loading ? "true" : "false"); |
| font.pointSize: 16; |
| font.italic: true; |
| color: "black" |
| anchors.fill: parent |
| } |
| } |
| } |