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engines/nancy/misc/mousefollow.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 NANCY_MISC_MOUSEFOLLOW_H
+#define NANCY_MISC_MOUSEFOLLOW_H
+
+#include "engines/nancy/renderobject.h"
+#include "engines/nancy/input.h"
+
+namespace Nancy {
+
+struct VIEW;
+
+namespace Misc {
+
+// Describes an object that follows the mouse's movement, making
+// sure that its center stays above the mouse hotspot. The position
+// of such an object is clipped to the Viewport. Used in puzzles:
+// - AssemblyPuzzle
+// - CubePuzzle
+// - RippedLetterPuzzle
+// - TowerPuzzle
+// - TangramPuzzle
+class MouseFollowObject : public RenderObject {
+public:
+	MouseFollowObject();
+	virtual ~MouseFollowObject() {}
+
+	virtual void pickUp() { _isPickedUp = true; }
+	virtual void putDown() { _isPickedUp = false; }
+
+	void setZ(uint16 z) { _z = z; _needsRedraw = true; }
+	void handleInput(NancyInput &input);
+
+protected:
+	bool isViewportRelative() const override { return true; }
+
+	bool _isPickedUp = false;
+	byte _rotation = 0;
+
+	const VIEW *_viewportData = nullptr;
+};
+
+} // End of namespace Misc
+} // End of namespace Nancy
+
+#endif // NANCY_MISC_MOUSEFOLLOW_H