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engines/ultima/ultima8/world/damage_info.cpp

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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/>.
+ *
+ */
+
+#include "ultima/ultima8/world/item.h"
+#include "ultima/ultima8/world/item_factory.h"
+#include "ultima/ultima8/audio/audio_process.h"
+#include "ultima/ultima8/kernel/kernel.h"
+#include "ultima/ultima8/ultima8.h"
+
+namespace Ultima {
+namespace Ultima8 {
+
+DamageInfo::DamageInfo(uint8 data[6]) {
+	_flags = data[0];
+	_sound = data[1];
+	_data[0] = data[2];
+	_data[1] = data[3];
+	_data[2] = data[4];
+	_damagePoints = data[5];
+}
+
+bool DamageInfo::applyToItem(Item *item, uint16 points) const {
+	if (!item)
+		return false;
+
+	// The game does this.. it seems to be used to mean
+	// "destroyed" (as distinct from broken?)
+	if (item->hasFlags(Item::FLG_GUMP_OPEN))
+		return false;
+
+	uint8 itemPts = item->getDamagePoints();
+	if (points < itemPts) {
+		item->setDamagePoints(itemPts - points);
+		return false;
+	}
+	item->setDamagePoints(0);
+	item->setFlag(Item::FLG_GUMP_OPEN | Item::FLG_BROKEN);
+
+	// Get some data out of the item before we potentially delete
+	// it by explosion
+	uint16 q = item->getQuality();
+	Point3 pt = item->getLocation();
+	int32 mapnum = item->getMapNum();
+
+	if (explode()) {
+		item->explode(explosionType(), explodeDestroysItem(), explodeWithDamage());
+		if (explodeDestroysItem())
+			item = nullptr;
+	}
+	if (_sound) {
+		AudioProcess *audio = AudioProcess::get_instance();
+		if (audio) {
+			ObjId objid = item ? item->getObjId() : 0;
+			audio->playSFX(_sound, 0x10, objid, 1, true);
+		}
+	}
+	if (replaceItem()) {
+		uint16 replacementShape = getReplacementShape();
+		uint8 replacementFrame = getReplacementFrame();
+		Item *newitem = ItemFactory::createItem(replacementShape, replacementFrame, q, 0, 0, mapnum, 0, true);
+		newitem->move(pt);
+		if (item)
+			item->destroy();
+	} else if (!explodeDestroysItem()) {
+		Common::RandomSource &rs = Ultima8Engine::get_instance()->getRandomSource();
+		if (frameDataIsAbsolute()) {
+			int frameval = 1;
+			if (_data[1])
+				frameval++;
+			if (_data[2])
+				frameval++;
+			item->setFrame(_data[rs.getRandomNumber(frameval - 1)]);
+		} else {
+			int frameoff = 0;
+			for (int i = 0; i < 3; i++)
+				if (_data[i])
+					frameoff++;
+			if (!frameoff) {
+				item->destroy();
+			} else {
+				uint32 frame = item->getFrame();
+				item->setFrame(frame + _data[rs.getRandomNumber(frameoff - 1)]);
+			}
+		}
+	}
+	return true;
+}
+
+
+} // End of namespace Ultima8
+} // End of namespace Ultima