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engines/saga2/spellloc.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
+ * aint32 with this program; if not, write to the Free Software
+ *
+ *
+ * Based on the original sources
+ *   Faery Tale II -- The Halls of the Dead
+ *   (c) 1993-1996 The Wyrmkeep Entertainment Co.
+ */
+
+#include "saga2/saga2.h"
+#include "saga2/spelshow.h"
+#include "saga2/tilevect.h"
+
+namespace Saga2 {
+
+//-----------------------------------------------------------------------
+// Spell Display positioning routines
+//   For the most part these simply update the position with the
+//   velocity.  Cone and bolt spells though have extra code to stagger
+//   rows of effectrons
+//
+
+/* ===================================================================== *
+   Effect specific code
+ * ===================================================================== */
+
+//-----------------------------------------------------------------------
+// null spell
+
+SPELLLOCATIONFUNCTION(invisibleSpellPos) {
+	return effectron->_finish;
+}
+
+// ------------------------------------------------------------------
+// aura that tracks target
+
+SPELLLOCATIONFUNCTION(auraSpellPos) {
+	return effectron->_finish;
+}
+
+// ------------------------------------------------------------------
+// aura that tracks target (in front)
+
+SPELLLOCATIONFUNCTION(glowSpellPos) {
+	return effectron->_finish - TilePoint(8, 8, 0);
+}
+
+// ------------------------------------------------------------------
+// sprites that surround target
+
+SPELLLOCATIONFUNCTION(wallSpellPos) {
+	return effectron->_parent->_target->getPoint() + effectron->_velocity;
+}
+
+// ------------------------------------------------------------------
+// projectile from caster to target
+
+SPELLLOCATIONFUNCTION(projectileSpellPos) {
+	return effectron->_current + effectron->_velocity;
+}
+
+// ------------------------------------------------------------------
+// bi-directional beams of energy
+
+SPELLLOCATIONFUNCTION(exchangeSpellPos) {
+	if (effectron->_stepNo < effectron->_partno / 2)
+		return effectron->_current;
+	return effectron->_current + effectron->_velocity;
+}
+
+// ------------------------------------------------------------------
+// lightning bolt shaped spell
+
+SPELLLOCATIONFUNCTION(boltSpellPos) {
+	if ((effectron->_partno / 9) >= effectron->_stepNo)
+		return effectron->_current;
+	return effectron->_current +
+	       effectron->_velocity;
+}
+
+// ------------------------------------------------------------------
+// narrow bolt
+
+SPELLLOCATIONFUNCTION(beamSpellPos) {
+	return effectron->_start + randomVector(-effectron->_velocity, effectron->_velocity);
+}
+
+// ------------------------------------------------------------------
+// narrow cone shaped spell
+
+SPELLLOCATIONFUNCTION(coneSpellPos) {
+	if (effectron->_partno / 9 >= effectron->_stepNo)
+		return effectron->_current;
+	return effectron->_current +
+	       effectron->_velocity;
+}
+
+// ------------------------------------------------------------------
+// wide cone shaped spell
+
+SPELLLOCATIONFUNCTION(waveSpellPos) {
+	if (effectron->_partno / 17 >= effectron->_stepNo)
+		return effectron->_current;
+	return effectron->_current +
+	       effectron->_velocity;
+}
+
+// ------------------------------------------------------------------
+// small exploding ball
+
+SPELLLOCATIONFUNCTION(ballSpellPos) {
+	return effectron->_current +
+	       effectron->_velocity;
+}
+
+// ------------------------------------------------------------------
+// square exploding ball
+
+SPELLLOCATIONFUNCTION(squareSpellPos) {
+	return effectron->_current +
+	       effectron->_velocity;
+}
+
+// ------------------------------------------------------------------
+// large exploding ball
+
+SPELLLOCATIONFUNCTION(stormSpellPos) {
+	return effectron->_current +
+	       effectron->_velocity;
+}
+
+} // end of namespace Saga2