It is time now to practice our freshly acquired skills. The task is to add a particle effect to the game when the player collects coins. The coin will explode into a sprinkle of colorful stars when collected.
Start by declaring a particle system as filling the game scene, along with the particle painter definition:
ParticleSystem {
id: coinParticles
anchors.fill: parent // scene is the parent
ImageParticle {
source: "particle.png"
colorVariation: 1
rotationVariation: 180
rotationVelocityVariation: 10
}
}Next, modify the definition of Coin to include an emitter:
Emitter {
id: emitter
system: coinParticles
emitRate: 0
lifeSpan: 500
lifeSpanVariation: 100
velocity: AngleDirection { angleVariation: 180; magnitude: 10 }
acceleration: AngleDirection { angle: 270; magnitude: 2 }
}Finally, the hit function has to be updated:
function hit() {
emitter.burst(50)
hitAnim.start()
}