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269 lines
10 KiB
C++
269 lines
10 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* aint32 with this program; if not, write to the Free Software
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*
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*
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* Based on the original sources
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* Faery Tale II -- The Halls of the Dead
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* (c) 1993-1996 The Wyrmkeep Entertainment Co.
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*/
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#include "saga2/saga2.h"
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#include "saga2/objproto.h"
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#include "saga2/spellbuk.h"
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#include "saga2/spelshow.h"
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#include "saga2/spellio.h"
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#include "saga2/hresmgr.h"
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namespace Saga2 {
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//-------------------------------------------------------------------
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// The initialization for spells is done in this module:
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// - Display Effects are defined (ball spell, bolt spell, etc)
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// - The spell definitions are loaded from the resource file
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// - The spell internal effect definitions are loaded from disk
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// and attached to the appropriate spell
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// - Spell Color maps are loaded from the resource file
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// - This file is also home to most of the global variables
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// which relate to spell casting
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//
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/* ===================================================================== *
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Constants
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* ===================================================================== */
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const uint32 spellSpriteID = MKTAG('S', 'P', 'F', 'X');
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const int32 maxSpells = kTotalSpellBookPages;
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const int32 maxSpellPrototypes = kTotalSpellBookPages;
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const int32 maxEffectPrototypes = 16;
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const int32 maxSpellColorMaps = 32;
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/* const */ // For some reason, MVC can't handle constant static classes.
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// ( Note: It would be better to use a SIN/COS table anyway than
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// a table of points, since that allows more than 24 directions ).
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StaticTilePoint WallVectors[8] = {
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{2, 0, 0}, {1, 1, 0}, {0, 2, 0},
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{-1, 2, 0}, {-2, 0, 0}, {-1, -1, 0},
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{0, -2, 0}, {1, -1, 0}
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};
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StaticTilePoint FireballVectors[24] = {
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{4, 0, 0}, {4, 1, 0}, {3, 2, 0},
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{3, 3, 0}, {2, 3, 0}, {1, 4, 0},
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{0, 4, 0}, {-1, 4, 0}, {-2, 3, 0},
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{-3, 3, 0}, {-3, 2, 0}, {-4, 1, 0},
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{-4, 0, 0}, {-4, -1, 0}, {-3, -2, 0},
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{-3, -3, 0}, {-2, -3, 0}, {-1, -4, 0},
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{0, -4, 0}, {1, -4, 0}, {2, -3, 0},
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{3, -3, 0}, {3, -2, 0}, {4, -1, 0}
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};
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StaticTilePoint SquareSpellVectors[32] = {
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{4, 0, 0}, {4, 1, 0}, {4, 2, 0}, {4, 3, 0},
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{4, 4, 0}, {3, 4, 0}, {2, 4, 0}, {1, 4, 0},
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{0, 4, 0}, {-1, 4, 0}, {-2, 4, 0}, {-3, 4, 0},
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{-4, 4, 0}, {-4, 3, 0}, {-4, 2, 0}, {-4, 1, 0},
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{-4, 0, 0}, {-4, -1, 0}, {-4, -2, 0}, {-4, -3, 0},
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{-4, -4, 0}, {-3, -4, 0}, {-2, -4, 0}, {-1, -4, 0},
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{0, -4, 0}, {1, -4, 0}, {2, -4, 0}, {3, -4, 0},
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{4, -4, 0}, {4, -3, 0}, {4, -2, 0}, {4, -1, 0}
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};
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/* ===================================================================== *
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Imports
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* ===================================================================== */
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extern hResContext *spriteRes; // sprite resource handle
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extern hResContext *schemeRes; // sprite resource handle
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extern ColorTable identityColors;
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/* ===================================================================== *
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Global data
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* ===================================================================== */
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SpriteSet *spellSprites; // longsword test sprites
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SpellStuff *spellBook;
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ColorTable spellColorMaps[maxSpellColorMaps];
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ColorSchemeList *spellSchemes;
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int32 loadedColorMaps;
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/* ===================================================================== *
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prototypes
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* ===================================================================== */
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static void defineEffects();
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static void loadMagicData();
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/* ===================================================================== *
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code
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* ===================================================================== */
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//-----------------------------------------------------------------------
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// InitMagic called from main startup code
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void initMagic() {
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g_vm->_edpList = new EffectDisplayPrototypeList(maxEffectPrototypes);
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g_vm->_sdpList = new SpellDisplayPrototypeList(maxSpellPrototypes);
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spellBook = new SpellStuff[maxSpells]();
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defineEffects();
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loadMagicData();
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const int colorSchemeSize = 44;
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Common::SeekableReadStream *stream;
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stream = loadResourceToStream(spriteRes, spellSpriteID, "spell sprites");
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spellSprites = new SpriteSet(stream);
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assert(spellSprites);
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delete stream;
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loadedColorMaps = schemeRes->size(spellSpriteID) / colorSchemeSize;
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stream = loadResourceToStream(schemeRes, spellSpriteID, "scheme list");
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spellSchemes = new ColorSchemeList(loadedColorMaps, stream);
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assert(spellSchemes);
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delete stream;
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}
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void cleanupMagic() {
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g_vm->_activeSpells->cleanup();
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for (int i = 0; i < maxSpells; i++) {
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spellBook[i].killEffects();
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}
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delete[] spellBook;
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g_vm->_sdpList->cleanup();
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g_vm->_edpList->cleanup();
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delete g_vm->_sdpList;
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delete g_vm->_edpList;
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}
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/* ===================================================================== *
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Effect data
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* ===================================================================== */
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//-----------------------------------------------------------------------
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// the macros make things more legible than the entire call
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// Set up a display effect shape
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#define ADD_EFFECT( n, p, s, f, h, b, i ) ( g_vm->_edpList->add( new EffectDisplayPrototype(n,&p,&s,&f,&h,&b,&i )))
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// Chain another effect when done
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#define SECOND_EFFECT( e, n, p, s, f, h, b, i ) ( g_vm->_edpList->append( new EffectDisplayPrototype(n,&p,&s,&f,&h,&b,&i ),e))
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//-----------------------------------------------------------------------
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static void defineEffects() {
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int16 i;
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ADD_EFFECT(1, invisibleSpellPos, invisibleSprites, invisibleSpellSta, ShortTillThere, ThinTillThere, invisibleSpellInit);
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ADD_EFFECT(1, auraSpellPos, auraSprites, auraSpellSta, ShortTillThere, ThinTillThere, auraSpellInit);
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ADD_EFFECT(1, projectileSpellPos, projectileSprites, projectileSpellSta, StaticHeight, StaticBreadth, projectileSpellInit);
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ADD_EFFECT(12, exchangeSpellPos, exchangeSprites, exchangeSpellSta, StaticHeight, StaticBreadth, exchangeSpellInit);
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ADD_EFFECT(36, boltSpellPos, boltSprites, boltSpellSta, StaticHeight, StaticBreadth, boltSpellInit);
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ADD_EFFECT(24, coneSpellPos, coneSprites, coneSpellSta, GrowLinear, BulkLinear, coneSpellInit);
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i = ADD_EFFECT(1, projectileSpellPos, projectileSprites, projectileSpellSta, StaticHeight, StaticBreadth, projectileSpellInit);
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SECOND_EFFECT(i, 24, ballSpellPos, ballSprites, ballSpellSta, ShortTillThere, ThinTillThere, ballSpellInit);
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i = ADD_EFFECT(1, projectileSpellPos, projectileSprites, projectileSpellSta, StaticHeight, StaticBreadth, projectileSpellInit);
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SECOND_EFFECT(i, 32, squareSpellPos, squareSprites, squareSpellSta, StaticHeight, StaticBreadth, squareSpellInit);
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ADD_EFFECT(24, waveSpellPos, waveSprites, waveSpellSta, GrowLinear, BulkLinear, waveSpellInit);
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i = ADD_EFFECT(1, projectileSpellPos, projectileSprites, projectileSpellSta, StaticHeight, StaticBreadth, projectileSpellInit);
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SECOND_EFFECT(i, 24, stormSpellPos, stormSprites, stormSpellSta, ShortTillThere, ThinTillThere, stormSpellInit);
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i = ADD_EFFECT(1, projectileSpellPos, projectileSprites, projectileSpellSta, StaticHeight, StaticBreadth, projectileSpellInit);
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SECOND_EFFECT(i, 1, glowSpellPos, auraSprites, auraSpellSta, ShortTillThere, ThinTillThere, glowSpellInit);
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ADD_EFFECT(1, glowSpellPos, auraSprites, auraSpellSta, ShortTillThere, ThinTillThere, glowSpellInit);
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ADD_EFFECT(20, beamSpellPos, beamSprites, beamSpellSta, StaticHeight, StaticBreadth, beamSpellInit);
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ADD_EFFECT(8, wallSpellPos, wallSprites, wallSpellSta, StaticHeight, StaticBreadth, wallSpellInit);
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}
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//-----------------------------------------------------------------------
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#define ADD_SHOW( e, a, b, c, d, f, g, m, i, s, n ) ( g_vm->_sdpList->add( new SpellDisplayPrototype( e, a, b, c, d, f, g, m, i, s, n )))
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//-----------------------------------------------------------------------
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// loadMagicData : reads magic related data from the resource file
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static void loadMagicData() {
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int16 i;
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hResContext *spellRes;
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// Get spell definitions
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spellRes = auxResFile->newContext(
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MKTAG('S', 'P', 'E', 'L'),
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"spell resources");
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if (spellRes == nullptr || !spellRes->_valid)
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error("Error accessing spell resource group.\n");
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i = 1;
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ADD_SHOW(keAreaInvisible, 0, 0, 0, 0, kDiFlagInc, kEcFlagNone, 30, MKTAG('S', 'T', 'A', 0), 23, 24);
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spellBook[0].setManaType(ksManaIDSkill);
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while (spellRes->size(
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MKTAG('I', 'N', 'F', i)) > 0) {
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ResourceSpellItem *rsi =
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(ResourceSpellItem *)LoadResource(
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spellRes,
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MKTAG('I', 'N', 'F', i),
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"spell");
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if (rsi == nullptr)
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error("Unable to load data for spell %d", i);
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spellBook[rsi->spell].setupFromResource(rsi);
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g_vm->_sdpList->add(new SpellDisplayPrototype(rsi));
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free(rsi);
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i++;
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}
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assert(i > 1);
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// get spell effects
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i = 0;
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while (spellRes->size(
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MKTAG('E', 'F', 'F', i)) > 0) {
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ResourceSpellEffect *rse =
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(ResourceSpellEffect *)LoadResource(
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spellRes,
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MKTAG('E', 'F', 'F', i),
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"spell effect");
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if (rse == nullptr)
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error("Unable to load effects for spell %d", i);
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if (rse->spell)
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spellBook[rse->spell].addEffect(rse);
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free(rse);
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i++;
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}
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assert(i > 1);
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// get spell color maps
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memcpy(spellColorMaps[0], identityColors, sizeof(ColorTable));
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auxResFile->disposeContext(spellRes);
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}
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} // end of namespace Saga2
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