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engines/ultima/ultima4/game/weapon.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/ultima4/game/weapon.h"
+#include "ultima/ultima4/core/config.h"
+#include "ultima/ultima4/game/names.h"
+
+namespace Ultima {
+namespace Ultima4 {
+
+Weapons *g_weapons;
+
+Weapons::Weapons() : _confLoaded(false) {
+	g_weapons = this;
+}
+
+Weapons::~Weapons() {
+	for (uint idx = 0; idx < size(); ++idx)
+		delete (*this)[idx];
+
+	g_weapons = nullptr;
+}
+
+const Weapon *Weapons::get(WeaponType w) {
+	// Load in XML if it hasn't been already
+	loadConf();
+
+	if (static_cast<unsigned>(w) >= size())
+		return nullptr;
+	return (*this)[w];
+}
+
+const Weapon *Weapons::get(const Common::String &name) {
+	// Load in XML if it hasn't been already
+	loadConf();
+
+	for (uint i = 0; i < size(); i++) {
+		if (scumm_stricmp(name.c_str(), (*this)[i]->_name.c_str()) == 0)
+			return (*this)[i];
+	}
+
+	return nullptr;
+}
+
+void Weapons::loadConf() {
+	if (_confLoaded)
+		return;
+
+	_confLoaded = true;
+	const Config *config = Config::getInstance();
+
+	Std::vector<ConfigElement> weaponConfs = config->getElement("weapons").getChildren();
+	for (const auto &i : weaponConfs) {
+		if (i.getName() != "weapon")
+			continue;
+
+		WeaponType weaponType = static_cast<WeaponType>(size());
+		push_back(new Weapon(weaponType, i));
+	}
+}
+
+/*-------------------------------------------------------------------*/
+
+Weapon::Weapon(WeaponType weaponType, const ConfigElement &conf)
+	: _type(weaponType)
+	, _name(conf.getString("name"))
+	, _abbr(conf.getString("abbr"))
+	, _canUse(0xFF)
+	, _range(0)
+	, _damage(conf.getInt("damage"))
+	, _hitTile("hit_flash")
+	, _missTile("miss_flash")
+	, _leaveTile("")
+	, _flags(0) {
+	static const struct {
+		const char *name;
+		uint flag;
+	} booleanAttributes[] = {
+		{ "lose", WEAP_LOSE },
+		{ "losewhenranged", WEAP_LOSEWHENRANGED },
+		{ "choosedistance", WEAP_CHOOSEDISTANCE },
+		{ "alwayshits", WEAP_ALWAYSHITS },
+		{ "magic", WEAP_MAGIC },
+		{ "attackthroughobjects", WEAP_ATTACKTHROUGHOBJECTS },
+		{ "returns", WEAP_RETURNS },
+		{ "dontshowtravel", WEAP_DONTSHOWTRAVEL }
+	};
+
+	/* Get the range of the weapon, whether it is absolute or normal range */
+	Common::String range = conf.getString("range");
+	if (range.empty()) {
+		range = conf.getString("absolute_range");
+		if (!range.empty())
+			_flags |= WEAP_ABSOLUTERANGE;
+	}
+	if (range.empty())
+		error("malformed weapons.xml file: range or absolute_range not found for weapon %s", _name.c_str());
+
+	_range = atoi(range.c_str());
+
+	/* Load weapon attributes */
+	for (unsigned at = 0; at < sizeof(booleanAttributes) / sizeof(booleanAttributes[0]); at++) {
+		if (conf.getBool(booleanAttributes[at].name)) {
+			_flags |= booleanAttributes[at].flag;
+		}
+	}
+
+	/* Load hit tiles */
+	if (conf.exists("hittile"))
+		_hitTile = conf.getString("hittile");
+
+	/* Load miss tiles */
+	if (conf.exists("misstile"))
+		_missTile = conf.getString("misstile");
+
+	/* Load leave tiles */
+	if (conf.exists("leavetile")) {
+		_leaveTile = conf.getString("leavetile");
+	}
+
+	Std::vector<ConfigElement> contraintConfs = conf.getChildren();
+	for (const auto &i : contraintConfs) {
+		byte mask = 0;
+
+		if (i.getName() != "constraint")
+			continue;
+
+		for (int cl = 0; cl < 8; cl++) {
+			if (scumm_stricmp(i.getString("class").c_str(), getClassName(static_cast<ClassType>(cl))) == 0)
+				mask = (1 << cl);
+		}
+		if (mask == 0 && scumm_stricmp(i.getString("class").c_str(), "all") == 0)
+			mask = 0xFF;
+		if (mask == 0) {
+			error("malformed weapons.xml file: constraint has unknown class %s",
+			           i.getString("class").c_str());
+		}
+		if (i.getBool("canuse"))
+			_canUse |= mask;
+		else
+			_canUse &= ~mask;
+	}
+}
+
+} // End of namespace Ultima4
+} // End of namespace Ultima