ml
52 lines
1.6 KiB
Go
52 lines
1.6 KiB
Go
package object
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// DestroyEffect is a packed type describing effects during object destruction.
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type DestroyEffect byte
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const (
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destroyEffectValueMask byte = 0x1F
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destroyEffectSoundMask byte = 0x60
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destroyEffectExplosionMask byte = 0x80
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// DestroyEffectValueLimit is the maximum the value can take.
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DestroyEffectValueLimit = destroyEffectValueMask
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)
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// WithValue returns a new destroy effect with given value.
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func (effect DestroyEffect) WithValue(value byte) DestroyEffect {
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return DestroyEffect((byte(effect) & ^destroyEffectValueMask) | value)
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}
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// Value returns the effect value.
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func (effect DestroyEffect) Value() byte {
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return byte(effect) & destroyEffectValueMask
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}
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// WithSound returns a new destroy effect that has sound playback marked.
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func (effect DestroyEffect) WithSound(value bool) DestroyEffect {
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soundValue := byte(0)
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if value {
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soundValue = 0x20
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}
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return DestroyEffect((byte(effect) & ^destroyEffectSoundMask) | soundValue)
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}
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// PlaySound returns true if a sound shall be played.
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func (effect DestroyEffect) PlaySound() bool {
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return (byte(effect) & destroyEffectSoundMask) != 0
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}
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// WithExplosion returns a new destroy effect that has explosion display marked.
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func (effect DestroyEffect) WithExplosion(value bool) DestroyEffect {
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explosionValue := byte(0)
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if value {
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explosionValue = 0x80
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}
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return DestroyEffect((byte(effect) & ^destroyEffectExplosionMask) | explosionValue)
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}
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// ShowExplosion returns true if an explosion shall be shown.
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func (effect DestroyEffect) ShowExplosion() bool {
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return (byte(effect) & destroyEffectExplosionMask) != 0
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}
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