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util.go
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util.go
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package effects
import (
"github.com/walesey/go-engine/engine"
"github.com/walesey/go-engine/renderer"
)
type TimedParticleGroup struct {
GameEngine engine.Engine
TargetNode *renderer.Node
Particles *ParticleGroup
Life, Cleanup float64
}
func TriggerTimedParticleGroup(tpg TimedParticleGroup) {
tpg.TargetNode.Add(tpg.Particles)
tpg.GameEngine.AddUpdatable(tpg.Particles)
particleLife := tpg.Life
var updater engine.Updatable
updater = engine.UpdatableFunc(func(dt float64) {
particleLife -= dt
if particleLife < 0 {
tpg.Particles.Disable(true)
}
if particleLife < -tpg.Cleanup {
tpg.TargetNode.Remove(tpg.Particles, true)
tpg.GameEngine.RemoveUpdatable(tpg.Particles)
tpg.GameEngine.RemoveUpdatable(updater)
}
})
tpg.GameEngine.AddUpdatable(updater)
}