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engines/sci/graphics/compare.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 SCI_GRAPHICS_COMPARE_H
+#define SCI_GRAPHICS_COMPARE_H
+
+#include "common/hashmap.h"
+
+namespace Sci {
+
+class Screen;
+
+/**
+ * Compare class, handles compare operations graphic-wise (like when checking control screen for a pattern etc.)
+ */
+class GfxCompare {
+public:
+	GfxCompare(SegManager *segMan, GfxCache *cache, GfxScreen *screen, GfxCoordAdjuster16 *coordAdjuster);
+	~GfxCompare();
+
+	uint16 kernelOnControl(byte screenMask, const Common::Rect &rect);
+	void kernelSetNowSeen(reg_t objectReference);
+	reg_t kernelCanBeHere(reg_t curObject, reg_t listReference);
+	reg_t kernelCantBeHere32(const reg_t curObject, const reg_t listReference) const;
+	bool kernelIsItSkip(GuiResourceId viewId, int16 loopNo, int16 celNo, Common::Point position);
+	void kernelBaseSetter(reg_t object);
+	Common::Rect getNSRect(reg_t object);
+	void setNSRect(reg_t object, Common::Rect nsRect);
+
+private:
+	SegManager *_segMan;
+	GfxCache *_cache;
+	GfxScreen *_screen;
+	GfxCoordAdjuster16 *_coordAdjuster;
+
+	uint16 isOnControl(uint16 screenMask, const Common::Rect &rect);
+
+	/**
+	 * This function checks whether any of the objects in the given list,
+	 * *different* from checkObject, has a brRect which is contained inside
+	 * checkRect.
+	 */
+	reg_t canBeHereCheckRectList(const reg_t checkObject, const Common::Rect &checkRect, const List *list, const uint16 signalFlags) const;
+};
+
+} // End of namespace Sci
+
+#endif // SCI_GRAPHICS_COMPARE_H