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engines/saga2/dice.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/>.
+ *
+ *
+ * Based on the original sources
+ *   Faery Tale II -- The Halls of the Dead
+ *   (c) 1993-1996 The Wyrmkeep Entertainment Co.
+ */
+
+#ifndef SAGA2_DICE_H
+#define SAGA2_DICE_H
+
+namespace Saga2 {
+
+inline int32 RANDOM(int32 minV, int32 maxV) {
+	return (maxV - minV + 1) ? g_vm->_rnd->getRandomNumber(ABS(maxV - minV)) + minV : 0;
+}
+
+inline int32 diceRoll(int dice, int sides, int perDieMod, int base) {
+	int32 rv = base;
+	if (dice)
+		for (int i = 0; i < ABS(dice); i++)
+			rv += (RANDOM(1, sides) + perDieMod * (dice > 0 ? 1 : -1));
+	return rv;
+}
+
+class RandomDice {
+	int8    _dice, _side;
+public:
+	RandomDice(int8 d, int8 s) {
+		_dice = d;
+		_side = s;
+	}
+	RandomDice() {
+		_dice = 1;
+		_side = 1;
+	}
+
+	int32 roll(int32 resist = 0) {
+		return diceRoll(_dice, _side, resist, 0);
+	}
+};
+
+} // end of namespace Saga2
+
+#endif