Adding modding folder with a hacked build.

modding/hacked/ss1/content/archive/level/LightDeltaInfo.go

@@ -0,0 +1,30 @@
+package level
+
+// LightDeltaInfo describes the light offsets for a tile.
+type LightDeltaInfo byte
+
+// OfCeiling returns the delta value for the ceiling.
+func (info LightDeltaInfo) OfCeiling() int {
+	return int(info >> 4)
+}
+
+// WithCeiling returns a new instance with the given ceiling value.
+func (info LightDeltaInfo) WithCeiling(value int) LightDeltaInfo {
+	if (value < 0) || (value > 15) {
+		return info
+	}
+	return (info & 0x0F) | LightDeltaInfo(value<<4)
+}
+
+// OfFloor returns the delta value for the floor.
+func (info LightDeltaInfo) OfFloor() int {
+	return int(info & 0x0F)
+}
+
+// WithFloor returns a new instance with the given floor value.
+func (info LightDeltaInfo) WithFloor(value int) LightDeltaInfo {
+	if (value < 0) || (value > 15) {
+		return info
+	}
+	return (info & 0xF0) | LightDeltaInfo(value)
+}