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engines/ultima/ultima8/world/target_reticle_process.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_TARGETRETICLEPROCESS_H
+#define ULTIMA8_WORLD_TARGETRETICLEPROCESS_H
+
+#include "ultima/ultima8/kernel/process.h"
+#include "ultima/ultima8/misc/classtype.h"
+
+namespace Ultima {
+namespace Ultima8 {
+
+class Item;
+
+/**
+ * A process to update the targeting reticle location.  This is called the
+ * DumbTimer process in the game.
+ */
+class TargetReticleProcess : public Process {
+public:
+	TargetReticleProcess();
+	~TargetReticleProcess();
+
+	ENABLE_RUNTIME_CLASSTYPE()
+
+	void run() override;
+
+	//!< Notify this process that the item we're targeting has moved
+	void itemMoved(Item *item);
+
+	//!< Avatar direction changed - force update of finding a new item next frame.
+	void avatarMoved();
+
+	bool loadData(Common::ReadStream *rs, uint32 version);
+	void saveData(Common::WriteStream *ws) override;
+
+	void setEnabled(bool val) {
+		_reticleEnabled = val;
+	}
+	bool getEnabled() const {
+		return _reticleEnabled;
+	}
+
+	void toggle();
+
+	static TargetReticleProcess *get_instance() {
+		return _instance;
+	}
+
+	void toggleReticleStyle();
+
+private:
+	bool findTargetItem();
+	void putTargetReticleOnItem(Item *, bool last_frame);
+	void clearSprite();
+
+	bool _reticleEnabled;
+	int32 _lastUpdate;
+	uint16 _reticleSpriteProcess;
+	Direction _lastTargetDir;
+	uint16 _lastTargetItem;
+
+	// Only used in No Regret.
+	uint16 _reticleStyle;
+
+	static TargetReticleProcess *_instance;
+};
+
+} // End of namespace Ultima8
+} // End of namespace Ultima
+
+#endif