ml
31 lines
811 B
Go
31 lines
811 B
Go
package level
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// LightDeltaInfo describes the light offsets for a tile.
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type LightDeltaInfo byte
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// OfCeiling returns the delta value for the ceiling.
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func (info LightDeltaInfo) OfCeiling() int {
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return int(info >> 4)
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}
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// WithCeiling returns a new instance with the given ceiling value.
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func (info LightDeltaInfo) WithCeiling(value int) LightDeltaInfo {
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if (value < 0) || (value > 15) {
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return info
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}
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return (info & 0x0F) | LightDeltaInfo(value<<4)
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}
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// OfFloor returns the delta value for the floor.
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func (info LightDeltaInfo) OfFloor() int {
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return int(info & 0x0F)
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}
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// WithFloor returns a new instance with the given floor value.
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func (info LightDeltaInfo) WithFloor(value int) LightDeltaInfo {
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if (value < 0) || (value > 15) {
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return info
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}
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return (info & 0xF0) | LightDeltaInfo(value)
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}
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