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engines/ultima/ultima8/world/damage_info.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 WORLD_DAMAGE_INFO_H
+#define WORLD_DAMAGE_INFO_H
+
+#include "ultima/shared/std/string.h"
+
+namespace Ultima {
+namespace Ultima8 {
+
+class Item;
+
+/**
+ * The damage.dat flex contains data about each shape and how it should be damaged
+ */
+class DamageInfo {
+public:
+	DamageInfo(uint8 data[6]);
+	~DamageInfo() {};
+
+	//! apply this damage info to the given item.  Returns true if the item was destroyed in the process.
+	bool applyToItem(Item *item, uint16 points) const;
+
+	bool frameDataIsAbsolute() const {
+		return (_flags >> 7) & 1;
+	}
+	bool replaceItem() const {
+		return (_flags >> 6) & 1;
+	}
+	bool explodeDestroysItem() const {
+		return (_flags >> 5) & 1;
+	}
+	bool explodeWithDamage() const {
+		return (_flags >> 3) & 1;
+	}
+	bool takesDamage() const {
+		return _flags & 1;
+	}
+
+	uint8 damagePoints() const {
+		return _damagePoints;
+	}
+
+protected:
+	bool explode() const {
+		return (_flags & 0x06) != 0;
+	}
+	int explosionType() const {
+		assert(explode());
+		return ((_flags & 0x06) >> 1) - 1;
+	}
+
+	uint16 getReplacementShape() const {
+		assert(replaceItem());
+		return static_cast<uint16>(_data[1]) << 8 | _data[0];
+	}
+
+	uint16 getReplacementFrame() const {
+		assert(replaceItem());
+		return static_cast<uint16>(_data[2]);
+	}
+
+
+	// Flags are ABCxDEEF
+	// A = frame data is absolute (not relative to current)
+	// B = item is replaced when destroyed
+	// C = item destroyed after explosion
+	// D = explosion damages surrounding items
+	// EE = 2 bits for explosion type
+	// F = item takes damage
+	uint8 _flags;
+	uint8 _sound;
+	uint8 _data[3];
+	uint8 _damagePoints;
+};
+
+} // End of namespace Ultima8
+} // End of namespace Ultima
+
+#endif