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engines/ultima/ultima8/world/coord_utils.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef ULTIMA8_WORLD_COORDUTILS_H
+#define ULTIMA8_WORLD_COORDUTILS_H
+
+#include "ultima/ultima8/ultima8.h"
+
+namespace Ultima {
+namespace Ultima8 {
+
+/**
+ * Convert from c++ code coordinates to usecode coordinates
+ */
+template<typename T>
+static inline void World_ToUsecodeXY(T &x, T &y) {
+	if (GAME_IS_CRUSADER) {
+		x /= 2;
+		y /= 2;
+	}
+}
+
+/**
+ * Convert from usecode coordinates to c++ code coordinates
+ */
+template<typename T>
+static inline void World_FromUsecodeXY(T &x, T &y) {
+	if (GAME_IS_CRUSADER) {
+		x *= 2;
+		y *= 2;
+	}
+}
+
+/**
+ * Convert a single x or y value from c++ coordinate to usecode coordinate
+ */
+template<typename T>
+static inline T World_ToUsecodeCoord(T v) {
+	if (GAME_IS_CRUSADER)
+		return v / 2;
+	else
+		return v;
+}
+
+/**
+ * Convert a single x or y value from usecode coordinate to c++ code coordinate
+ */
+template<typename T>
+static inline T World_FromUsecodeCoord(T v) {
+	if (GAME_IS_CRUSADER)
+		return v * 2;
+	else
+		return v;
+}
+
+}
+}
+
+#endif // ULTIMA8_WORLD_COORDUTILS_H