Add missing files

src/citymania/cm_colour.hpp

@@ -0,0 +1,34 @@
+#ifndef CM_COLOUR_HPP
+#define CM_COLOUR_HPP
+
+#include "../blitter/32bpp_base.hpp"
+
+namespace citymania {
+
+extern const uint8_t RGB_TO_M[];
+
+static inline uint8_t GetMForRGB(uint8_t r, uint8_t g, uint8_t b) {
+	return RGB_TO_M[((uint)(r & 0xf0) >> 4) | ((uint)g & 0xf0) | ((uint)(b & 0xf0) << 4)];
+}
+
+static inline Colour Remap32RGB(uint r, uint g, uint b, const byte *remap)
+{
+	return _cur_palette.palette[remap[GetMForRGB(r, g, b)]];
+}
+
+static inline Colour Remap32RGBANoCheck(uint r, uint g, uint b, uint a, Colour current, const byte *remap)
+{
+	return Blitter_32bppBase::ComposeColourPANoCheck(Remap32RGB(r, g, b, remap), a, current);
+}
+
+static inline Colour Remap32RGBA(uint r, uint g, uint b, uint a, Colour current, const byte *remap)
+{
+	if (a == 255) return Remap32RGB(r, g, b, remap);
+	return Remap32RGBANoCheck(r, g, b, a, current, remap);
+}
+
+
+
+} // namespace citymania
+
+#endif