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** This file is part of the QtDeclarative module of the Qt Toolkit.
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import QtQuick 2.0
import QtQuick.Particles 2.0

Item {
    id: container
    property variant target: {"y": -90, "x":12}
    property ParticleSystem system
    property bool show: true

    width: 24
    height: 24
    Emitter {
        id: visualization
        group: "cannon"
        enabled: container.show
        system: container.system
        anchors.centerIn: parent
        lifeSpan: 2000
        emitRate: 1

        size: 4
        endSize: 0
    }

    function fireAt(targetArg, hardpoint) {
        target = container.mapFromItem(targetArg, targetArg.width/2, targetArg.height/2);
        if (container.hp <= 0 || targetArg.hp <= 0)
            return;
        //TODO: calculate hit and damage at target, which must be a Ship
        var hit = Math.random() > targetArg.dodge
        if (hit) {
            switch (targetArg.shipType) {
            case 1: hardpoint.damageDealt += 8; break;
            case 2: hardpoint.damageDealt += 10; break;
            case 3: hardpoint.damageDealt += 16; break;
            default: hardpoint.damageDealt += 1000;
            }
        }
        emitter.burst(1);
    }
    Emitter {
        id: emitter
        group: "cannon"
        enabled: false
        system: container.system
        anchors.centerIn: parent

        lifeSpan: 1000
        emitRate: 1
        size: 8
        endSize: 4
        speed: TargetDirection {
            id: blastVector
            targetX: target.x; targetY: target.y; magnitude: 1.1; proportionalMagnitude: true
        }
    }
}