Start implementing pixel conversions as classes. WiP.

src/CMakeLists.txt

@@ -17,6 +17,7 @@ add_library(${PROJECT_NAME}
 	tylermapsource.cpp
 	tiger.c
 	typename.cpp
+	pixelconv.cpp
 )
 
 target_include_directories(${PROJECT_NAME}

src/pixelconv.cpp

@@ -0,0 +1,40 @@
+#include "doorkeeper/components/pixelconv.hpp"
+
+namespace dk {
+	PixelConvDiamond::PixelConvDiamond (bool parStaggered, bool parFirstReentrant) :
+		base_class(parStaggered ? MapType_IsometricStaggered : MapType_Isometric)
+	{
+	}
+
+	PixelConvDiamond::PixelConvDiamond (MapTypes parType, bool parStaggered, bool parFirstReentrant) :
+		base_class(MapType_IsometricStaggered)
+	{
+	}
+
+	auto PixelConvDiamond::to_pixel (const coords& parFrom, const coords& parSize) const -> coords {
+		const auto from(parFrom);
+		const CoordinateScalarType xoffs = from.y() % 2;
+
+		return from * parSize + coords(xoffs * parSize.x() / 2, 0);
+	}
+
+	PixelConvHalfDiamond::PixelConvHalfDiamond (bool parHalfVertically) :
+		base_class(MapType_IsometricStaggered, true, true),
+		m_div(parHalfVertically ? coords(1, 2) : coords(2, 1))
+	{
+	}
+
+	auto PixelConvHalfDiamond::to_pixel (const coords& parFrom, const coords& parSize) const -> coords {
+		return base_class::to_pixel(parFrom, parSize / m_div);
+	}
+
+	PixelConvHex::PixelConvHex (bool parFirstReentrant) :
+		base_class(MapType_Hex)
+	{
+	}
+
+	auto PixelConvHex::to_pixel (const coords& parFrom, const coords& parSize) const -> coords {
+		DK_ASSERT(false); //not implemented
+		return coords(0);
+	}
+} //namespace dk