/
startrek.cpp
1870 lines (1568 loc) · 49.6 KB
/
startrek.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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "base/plugins.h"
#include "base/version.h"
#include "common/archive.h"
#include "common/config-manager.h"
#include "common/debug-channels.h"
#include "common/error.h"
#include "common/events.h"
#include "common/file.h"
#include "common/macresman.h"
#include "graphics/pixelformat.h"
#include "graphics/surface.h"
#include "engines/util.h"
#include "video/qt_decoder.h"
#include "startrek/filestream.h"
#include "startrek/iwfile.h"
#include "startrek/lzss.h"
#include "startrek/room.h"
#include "startrek/startrek.h"
namespace StarTrek {
StarTrekEngine::StarTrekEngine(OSystem *syst, const StarTrekGameDescription *gamedesc) :
Engine(syst),
_gameDescription(gamedesc),
_randomSource("Star Trek"),
_kirkActor(&_actorList[0]),
_spockActor(&_actorList[1]),
_mccoyActor(&_actorList[2]),
_redshirtActor(&_actorList[3]) {
DebugMan.addDebugChannel(kDebugSound, "sound", "Sound");
DebugMan.addDebugChannel(kDebugGraphics, "graphics", "Graphics");
DebugMan.addDebugChannel(kDebugSavegame, "savegame", "Savegames");
_gfx = nullptr;
_sound = nullptr;
_macResFork = nullptr;
memset(_actionOnWalkCompletionInUse, 0, sizeof(_actionOnWalkCompletionInUse));
_clockTicks = 0;
_musicEnabled = true;
_sfxEnabled = true;
_word_467a6 = true;
_musicWorking = true;
_sfxWorking = true;
_finishedPlayingSpeech = false;
_lookActionBitmapIndex = 0;
_mouseControllingShip = false;
_keyboardControlsMouse = true;
_inQuitGameMenu = false;
_textDisplayMode = TEXTDISPLAY_SUBTITLES;
_textboxVar2 = 0;
_textboxVar6 = 0;
_textboxHasMultipleChoices = false;
_missionToLoad = "LOVE";
_roomIndexToLoad = 0;
for (int i = 0; i < NUM_OBJECTS; i++)
_itemList[i] = g_itemList[i];
}
StarTrekEngine::~StarTrekEngine() {
delete _gfx;
delete _sound;
delete _macResFork;
}
Common::Error StarTrekEngine::run() {
_gfx = new Graphics(this);
_sound = new Sound(this);
if (getPlatform() == Common::kPlatformMacintosh) {
_macResFork = new Common::MacResManager();
if (!_macResFork->open("Star Trek Data"))
error("Could not load Star Trek Data");
assert(_macResFork->hasDataFork() && _macResFork->hasResFork());
}
const ::Graphics::PixelFormat format = ::Graphics::PixelFormat::createFormatCLUT8();
initGraphics(SCREEN_WIDTH, SCREEN_HEIGHT, &format);
initializeEventsAndMouse();
_frameIndex = 0;
_gameMode = -1;
_lastGameMode = -1;
runGameMode(GAMEMODE_AWAYMISSION);
return Common::kNoError;
}
Common::Error StarTrekEngine::runGameMode(int mode) {
_gameMode = mode;
_sound->stopAllVocSounds();
if (!_sound->_loopingAudioName.empty())
_sound->playVoc(_sound->_loopingAudioName);
if (_gameMode == GAMEMODE_START)
_gameMode = GAMEMODE_BRIDGE;
while (true) {
TrekEvent event;
if (_gameMode != _lastGameMode) {
// Cleanup previous game mode
switch (_lastGameMode) {
case GAMEMODE_BRIDGE:
//cleanupBridge();
break;
case GAMEMODE_AWAYMISSION:
cleanupAwayMission();
break;
case GAMEMODE_BEAMDOWN:
case GAMEMODE_BEAMUP:
break;
}
_lastGameMode = _gameMode;
// Load next game mode
switch (_gameMode) {
case GAMEMODE_BRIDGE:
_sound->loadMusicFile("bridge");
//initBridge();
break;
case GAMEMODE_AWAYMISSION:
initAwayMission();
break;
case GAMEMODE_BEAMDOWN:
_awayMission.redshirtDead = false;
_sound->loadMusicFile("ground");
runTransportSequence("teled");
_gameMode = GAMEMODE_AWAYMISSION;
continue; // Back to start of loop
case GAMEMODE_BEAMUP:
runTransportSequence("teleb");
_gameMode = GAMEMODE_BRIDGE;
//sub_15c61();
_sound->stopAllVocSounds();
_sound->playVoc("bridloop");
continue; // Back to start of loop
}
}
// Run current game mode
switch (_gameMode) {
case GAMEMODE_BRIDGE:
popNextEvent(&event);
//runBridge();
break;
case GAMEMODE_AWAYMISSION:
runAwayMission();
break;
case GAMEMODE_BEAMDOWN:
case GAMEMODE_BEAMUP:
error("Can't be here.");
break;
}
}
return Common::kNoError;
}
void StarTrekEngine::runTransportSequence(const Common::String &name) {
const uint16 crewmanTransportPositions[][2] = {
{ 0x8e, 0x7c },
{ 0xbe, 0x7c },
{ 0x7e, 0x72 },
{ 0xaa, 0x72 }
};
_sound->stopAllVocSounds();
_gfx->fadeoutScreen();
actorFunc1();
initActors();
SharedPtr<Bitmap> bgImage = _gfx->loadBitmap("transprt");
_gfx->setBackgroundImage(bgImage);
_gfx->clearPri();
_gfx->loadPalette("palette");
_gfx->drawDirectToScreen(bgImage);
_system->updateScreen();
for (int i = 0; i < (_awayMission.redshirtDead ? 3 : 4); i++) {
Common::String filename = getCrewmanAnimFilename(i, name);
int x = crewmanTransportPositions[i][0];
int y = crewmanTransportPositions[i][1];
loadActorAnim(i, filename, x, y, 256);
_actorList[i].animationString[0] = '\0';
}
if (_missionToLoad.equalsIgnoreCase("feather") && name[4] == 'b') {
loadActorAnim(9, "qteleb", 0x61, 0x79, 0x100);
}
else if (_missionToLoad.equalsIgnoreCase("trial")) {
if (name[4] == 'd') {
loadActorAnim(9, "qteled", 0x61, 0x79, 0x100);
}
/* TODO
else if (word_51156 >= 3) {
loadActorAnim(9, "qteleb", 0x61, 0x79, 0x100);
}
*/
}
loadActorAnim(8, "transc", 0, 0, 0x100);
// TODO: redraw mouse and sprite_52c4e?
_gfx->drawAllSprites();
_gfx->fadeinScreen();
playSoundEffectIndex(0x0a);
if (name.equalsIgnoreCase("teled"))
playSoundEffectIndex(0x08);
else
playSoundEffectIndex(0x09);
while (_actorList[0].field62 == 0) {
TrekEvent event;
if (popNextEvent(&event)) {
if (event.type == TREKEVENT_TICK) {
// TODO: redraw sprite_52c4e?
_frameIndex++;
updateActorAnimations();
_gfx->drawAllSprites();
}
}
}
// TODO: redraw sprite_52c4e?
_gfx->drawAllSprites();
_gfx->fadeoutScreen();
actorFunc1();
initActors();
}
void StarTrekEngine::playSoundEffectIndex(int index) {
switch (index) {
case 0x04:
_sound->playVoc("tricorde");
break;
case 0x05:
_sound->playVoc("STDOOR1");
break;
case 0x06:
_sound->playVoc("PHASSHOT");
break;
case 0x07:
_sound->playMidiTrack(index);
break;
case 0x08:
_sound->playVoc("TRANSDEM");
break;
case 0x09: // Beaming in?
_sound->playVoc("TRANSMAT");
break;
case 0x0a: // Beaming out?
_sound->playVoc("TRANSENE");
break;
case 0x10: // Menu selection sound
_sound->playMidiTrack(index);
break;
case 0x22:
_sound->playVoc("HAILING");
break;
case 0x24:
_sound->playVoc("PHASSHOT");
break;
case 0x25:
_sound->playVoc("PHOTSHOT");
break;
case 0x26:
_sound->playVoc("HITSHIEL");
break;
case 0x27:
_sound->playMidiTrack(index);
break;
case 0x28:
_sound->playVoc("REDALERT");
break;
case 0x29:
_sound->playVoc("WARP");
break;
default:
break;
}
}
void StarTrekEngine::playMidiMusicTracks(int startTrack, int loopTrack) {
_sound->playMidiMusicTracks(startTrack, loopTrack);
}
void StarTrekEngine::playSpeech(const Common::String &filename) {
_sound->playSpeech(filename.c_str());
}
void StarTrekEngine::stopPlayingSpeech() {
_sound->stopPlayingSpeech();
}
void StarTrekEngine::initActors() {
for (int i = 0; i < NUM_ACTORS; i++) {
_actorList[i] = Actor();
}
for (int i = 0; i < NUM_ACTORS / 2; i++)
_actorBanFiles[i].reset();
strcpy(_kirkActor->animationString, "kstnd");
strcpy(_spockActor->animationString, "sstnd");
strcpy(_mccoyActor->animationString, "mstnd");
strcpy(_redshirtActor->animationString, "rstnd");
}
/**
* Set an actor's animation, position, and scale.
*/
int StarTrekEngine::loadActorAnim(int actorIndex, const Common::String &animName, int16 x, int16 y, Fixed16 scale) {
debugC(6, kDebugGraphics, "Load animation '%s' on actor %d", animName.c_str(), actorIndex);
Actor *actor;
if (actorIndex == -1) {
// TODO
warning("loadActorAnim: actor == -1");
}
else
actor = &_actorList[actorIndex];
if (actor->spriteDrawn) {
releaseAnim(actor);
drawActorToScreen(actor, animName, x, y, scale, false);
}
else {
drawActorToScreen(actor, animName, x, y, scale, true);
}
actor->triggerActionWhenAnimFinished = false;
actor->finishedAnimActionParam = 0;
return actorIndex;
}
/**
* Tries to make an actor walk to a position.
* Returns true if successful in initiating the walk.
*/
bool StarTrekEngine::actorWalkToPosition(int actorIndex, const Common::String &animFile, int16 srcX, int16 srcY, int16 destX, int16 destY) {
debugC(6, "Obj %d: walk from (%d,%d) to (%d,%d)", actorIndex, srcX, srcY, destX, destY);
Actor *actor = &_actorList[actorIndex];
actor->triggerActionWhenAnimFinished = false;
if (isPositionSolid(destX, destY))
return false;
if (actor->spriteDrawn)
releaseAnim(actor);
else
_gfx->addSprite(&actor->sprite);
actor->spriteDrawn = true;
actor->animType = 1;
actor->frameToStartNextAnim = _frameIndex + 1;
strcpy(actor->animationString2, animFile.c_str());
actor->dest.x = destX;
actor->dest.y = destY;
actor->field92 = 0;
actor->triggerActionWhenAnimFinished = false;
actor->iwDestPosition = -1;
actor->iwSrcPosition = -1;
if (directPathExists(srcX, srcY, destX, destY)) {
chooseActorDirectionForWalking(actor, srcX, srcY, destX, destY);
updateActorPositionWhileWalking(actor, (actor->granularPosX + 0x8000) >> 16, (actor->granularPosY + 0x8000) >> 16);
return true;
}
else {
actor->iwSrcPosition = _iwFile->getClosestKeyPosition(srcX, srcY);
actor->iwDestPosition = _iwFile->getClosestKeyPosition(destX, destY);
if (actor->iwSrcPosition == -1 || actor->iwDestPosition == -1) {
// No path exists; face south by default.
strcat(actor->animationString2, "S");
actor->direction = 'S';
updateActorPositionWhileWalking(actor, srcX, srcY);
initStandAnim(actorIndex);
return false;
}
else {
Common::Point iwSrc = _iwFile->_keyPositions[actor->iwSrcPosition];
chooseActorDirectionForWalking(actor, srcX, srcY, iwSrc.x, iwSrc.y);
updateActorPositionWhileWalking(actor, (actor->granularPosX + 0x8000) >> 16, (actor->granularPosY + 0x8000) >> 16);
return true;
}
}
}
void StarTrekEngine::updateActorAnimations() {
for (int i = 0; i < NUM_ACTORS; i++) {
Actor *actor = &_actorList[i];
if (!actor->spriteDrawn)
continue;
switch (actor->animType) {
case 0: // Not walking?
case 2:
if (_frameIndex >= actor->frameToStartNextAnim) {
int nextAnimIndex = getRandomWord() & 3;
actor->animFile->seek(18 + nextAnimIndex + actor->animFrame * 22, SEEK_SET);
byte nextAnimFrame = actor->animFile->readByte();
if (actor->animFrame != nextAnimFrame) {
if (nextAnimFrame == actor->numAnimFrames - 1) {
actor->field62++;
if (actor->triggerActionWhenAnimFinished) {
addAction(Action(ACTION_FINISHED_ANIMATION, actor->finishedAnimActionParam, 0, 0));
}
}
}
actor->animFrame = nextAnimFrame;
if (actor->animFrame >= actor->numAnimFrames) {
if (actor->animationString[0] == '\0')
removeActorFromScreen(i);
else
initStandAnim(i);
}
else {
Sprite *sprite = &actor->sprite;
actor->animFile->seek(actor->animFrame * 22, SEEK_SET);
char animFrameFilename[16];
actor->animFile->read(animFrameFilename, 16);
sprite->setBitmap(loadAnimationFrame(animFrameFilename, actor->scale));
memset(actor->bitmapFilename, 0, 10);
strncpy(actor->bitmapFilename, animFrameFilename, 9);
actor->animFile->seek(10 + actor->animFrame * 22, SEEK_SET);
uint16 xOffset = actor->animFile->readUint16();
uint16 yOffset = actor->animFile->readUint16();
uint16 basePriority = actor->animFile->readUint16();
uint16 frames = actor->animFile->readUint16();
sprite->pos.x = xOffset + actor->pos.x;
sprite->pos.y = yOffset + actor->pos.y;
sprite->drawPriority = _gfx->getPriValue(0, yOffset + actor->pos.y) + basePriority;
sprite->bitmapChanged = true;
actor->frameToStartNextAnim = frames + _frameIndex;
}
}
break;
case 1: // Walking
if (_frameIndex < actor->frameToStartNextAnim)
break;
if (i == 0) // Kirk only
checkTouchedLoadingZone(actor->pos.x, actor->pos.y);
if (actor->field90 != 0) {
Sprite *sprite = &actor->sprite;
int loops;
if (getActorScaleAtPosition((actor->granularPosY + 0x8000) >> 16) < 0xa0)
loops = 1;
else
loops = 2;
for (int k = 0; k < loops; k++) {
if (actor->field90 == 0)
break;
actor->field90--;
uint32 newX = actor->granularPosX + actor->speedX;
uint32 newY = actor->granularPosY + actor->speedY;
if ((actor->field90 & 3) == 0) {
sprite->bitmap.reset();
updateActorPositionWhileWalking(actor, (newX + 0x8000) >> 16, (newY + 0x8000) >> 16);
actor->field92++;
}
actor->granularPosX = newX;
actor->granularPosY = newY;
actor->frameToStartNextAnim = _frameIndex;
}
}
else { // actor->field90 == 0
if (actor->iwSrcPosition == -1) {
if (actor->triggerActionWhenAnimFinished) {
actor->triggerActionWhenAnimFinished = false;
addAction(Action(ACTION_FINISHED_WALKING, actor->finishedAnimActionParam & 0xff, 0, 0));
}
actor->sprite.bitmap.reset();
updateActorPositionWhileWalking(actor, (actor->granularPosX + 0x8000) >> 16, (actor->granularPosY + 0x8000) >> 16);
initStandAnim(i);
}
else { // actor->iwSrcPosition != -1
if (actor->iwSrcPosition == actor->iwDestPosition) {
actor->animationString2[strlen(actor->animationString2) - 1] = '\0';
actor->iwDestPosition = -1;
actor->iwSrcPosition = -1;
chooseActorDirectionForWalking(actor, actor->pos.x, actor->pos.y, actor->dest.x, actor->dest.y);
}
else {
int index = _iwFile->_iwEntries[actor->iwSrcPosition][actor->iwDestPosition];
actor->iwSrcPosition = index;
Common::Point dest = _iwFile->_keyPositions[actor->iwSrcPosition];
actor->animationString2[strlen(actor->animationString2) - 1] = '\0';
chooseActorDirectionForWalking(actor, actor->pos.x, actor->pos.y, dest.x, dest.y);
}
}
}
break;
default:
error("Invalid anim type.");
break;
}
}
}
void StarTrekEngine::removeActorFromScreen(int actorIndex) {
Actor *actor = &_actorList[actorIndex];
if (actor->spriteDrawn != 1)
return;
debugC(6, kDebugGraphics, "Stop drawing actor %d", actorIndex);
Sprite *sprite = &actor->sprite;
sprite->field16 = true;
sprite->bitmapChanged = true;
_gfx->drawAllSprites();
_gfx->delSprite(sprite);
releaseAnim(actor);
}
void StarTrekEngine::actorFunc1() {
for (int i = 0; i < NUM_ACTORS; i++) {
if (_actorList[i].spriteDrawn == 1) {
removeActorFromScreen(i);
}
}
for (int i = 0; i < NUM_ACTORS / 2; i++) {
_actorBanFiles[i].reset();
}
}
void StarTrekEngine::drawActorToScreen(Actor *actor, const Common::String &_animName, int16 x, int16 y, Fixed16 scale, bool addSprite) {
Common::String animFilename = _animName;
if (_animName.hasPrefixIgnoreCase("stnd") /* && word_45d20 == -1 */) // TODO
animFilename += 'j';
memcpy(actor->animFilename, _animName.c_str(), sizeof(actor->animFilename));
actor->animType = 2;
actor->animFile = loadFile(animFilename + ".anm");
actor->numAnimFrames = actor->animFile->size() / 22;
actor->animFrame = 0;
actor->pos.x = x;
actor->pos.y = y;
actor->field62 = 0;
actor->scale = scale;
actor->animFile->seek(16, SEEK_SET);
actor->frameToStartNextAnim = actor->animFile->readUint16() + _frameIndex;
char firstFrameFilename[10];
actor->animFile->seek(0, SEEK_SET);
actor->animFile->read(firstFrameFilename, 10);
Sprite *sprite = &actor->sprite;
if (addSprite)
_gfx->addSprite(sprite);
sprite->setBitmap(loadAnimationFrame(firstFrameFilename, scale));
memset(actor->bitmapFilename, 0, sizeof(char) * 10);
strncpy(actor->bitmapFilename, firstFrameFilename, sizeof(char) * 9);
actor->scale = scale;
actor->animFile->seek(10, SEEK_SET);
uint16 xOffset = actor->animFile->readUint16();
uint16 yOffset = actor->animFile->readUint16();
uint16 basePriority = actor->animFile->readUint16();
sprite->pos.x = xOffset + actor->pos.x;
sprite->pos.y = yOffset + actor->pos.y;
sprite->drawPriority = _gfx->getPriValue(0, yOffset + actor->pos.y) + basePriority;
sprite->bitmapChanged = true;
actor->spriteDrawn = 1;
}
void StarTrekEngine::releaseAnim(Actor *actor) {
switch (actor->animType) {
case 0:
case 2:
actor->sprite.bitmap.reset();
actor->animFile.reset();
break;
case 1:
actor->sprite.bitmap.reset();
break;
default:
error("Invalid anim type");
break;
}
actor->spriteDrawn = 0;
}
void StarTrekEngine::initStandAnim(int actorIndex) {
Actor *actor = &_actorList[actorIndex];
if (!actor->spriteDrawn)
error("initStandAnim: dead anim");
////////////////////
// sub_239d2
const char *directions = "nsew";
if (actorIndex >= 0 && actorIndex <= 3) {
int8 dir = _awayMission.crewDirectionsAfterWalk[actorIndex];
if (dir != -1) {
actor->direction = directions[dir];
_awayMission.crewDirectionsAfterWalk[actorIndex] = -1;
}
}
// end of sub_239d2
////////////////////
Common::String animName;
if (actor->direction != 0)
animName = Common::String(actor->animationString) + (char)actor->direction;
else // Default to facing south
animName = Common::String(actor->animationString) + 's';
uint16 scale = getActorScaleAtPosition(actor->pos.y);
loadActorAnim(actorIndex, animName, actor->pos.x, actor->pos.y, scale);
actor->animType = 0;
}
void StarTrekEngine::updateActorPositionWhileWalking(Actor *actor, int16 x, int16 y) {
actor->scale = getActorScaleAtPosition(y);
Common::String animName = Common::String::format("%s%02d", actor->animationString2, actor->field92 & 7);
actor->sprite.setBitmap(loadAnimationFrame(animName, actor->scale));
memset(actor->bitmapFilename, 0, 10);
strncpy(actor->bitmapFilename, animName.c_str(), 9);
Sprite *sprite = &actor->sprite;
sprite->drawPriority = _gfx->getPriValue(0, y);
sprite->pos.x = x;
sprite->pos.y = y;
sprite->bitmapChanged = true;
actor->frameToStartNextAnim = _frameIndex;
actor->pos.x = x;
actor->pos.y = y;
}
/**
* Chooses a value for the actor's speed and direction, based on a source position and
* a destination position it's walking to.
*/
void StarTrekEngine::chooseActorDirectionForWalking(Actor *actor, int16 srcX, int16 srcY, int16 destX, int16 destY) {
actor->granularPosX = srcX << 16;
actor->granularPosY = srcY << 16;
int16 distX = destX - srcX;
int16 distY = destY - srcY;
int16 absDistX = abs(distX);
int16 absDistY = abs(distY);
if (absDistX > absDistY) {
char d;
if (distX > 0)
d = 'E';
else
d = 'W';
// Append direction to animation string
actor->animationString2[strlen(actor->animationString2) + 1] = '\0';
actor->animationString2[strlen(actor->animationString2)] = d;
actor->direction = d;
actor->field90 = absDistX;
if (distX != 0) {
if (distX > 0)
actor->speedX = 1 << 16;
else
actor->speedX = -1 << 16; // 0xffff0000
actor->speedY = (distY << 16) / absDistX;
}
}
else {
char d;
if (distY > 0)
d = 'S';
else
d = 'N';
// Append direction to animation string
actor->animationString2[strlen(actor->animationString2) + 1] = '\0';
actor->animationString2[strlen(actor->animationString2)] = d;
actor->direction = d;
actor->field90 = absDistY;
if (distY != 0) {
if (distY > 0)
actor->speedY = 1 << 16;
else
actor->speedY = -1 << 16; // 0xffff0000
actor->speedX = (distX << 16) / absDistY;
}
}
}
/**
* Returns true if an actor can walk directly from a source position to a destination
* position without running into unwalkable terrain.
*/
bool StarTrekEngine::directPathExists(int16 srcX, int16 srcY, int16 destX, int16 destY) {
int32 distX = destX - srcX;
int32 distY = destY - srcY;
int32 absDistX = abs(distX);
int32 absDistY = abs(distY);
int32 distCounter;
Fixed32 speedX, speedY;
if (absDistX > absDistY) {
distCounter = absDistX;
if (distCounter == 0)
return true;
speedY = (distY << 16) / absDistX;
if (distX > 0)
speedX = 1 << 16;
else
speedX = -1 << 16;
}
else { // absDistX <= absDistY
distCounter = absDistY;
if (distCounter == 0)
return true;
speedX = (distX << 16) / absDistY;
if (distY > 0)
speedY = 1 << 16;
else
speedY = -1 << 16;
}
Fixed32 fixedX = srcX << 16;
Fixed32 fixedY = srcY << 16;
if (isPositionSolid((fixedX + 0x8000) >> 16, (fixedY + 0x8000) >> 16))
return false;
while (distCounter-- > 0) {
fixedX += speedX;
fixedY += speedY;
if (isPositionSolid((fixedX + 0x8000) >> 16, (fixedY + 0x8000) >> 16))
return false;
}
return true;
}
int StarTrekEngine::findObjectAt(int x, int y) {
Sprite *sprite = _gfx->getSpriteAt(x, y);
if (sprite != nullptr) {
if (sprite == &_inventoryIconSprite)
return OBJECT_INVENTORY_ICON;
else if (sprite == &_itemIconSprite)
return _awayMission.activeObject;
for (int i = 0; i < NUM_ACTORS; i++) {
Actor *actor = &_actorList[i];
if (sprite == &actor->sprite)
return i;
}
error("findObject: Clicked on an unknown sprite");
}
_objectHasWalkPosition = false;
int actionBit = 1 << (_awayMission.activeAction - 1);
int offset = _room->getFirstHotspot();
while (offset != _room->getHotspotEnd()) {
uint16 word = _room->readRdfWord(offset);
if (word & 0x8000) {
if ((word & actionBit) && isPointInPolygon((int16 *)(_room->_rdfData + offset + 6), x, y)) {
int actorIndex = _room->readRdfWord(offset + 6);
_objectHasWalkPosition = true;
_objectWalkPosition.x = _room->readRdfWord(offset + 2);
_objectWalkPosition.y = _room->readRdfWord(offset + 4);
return actorIndex;
}
int numVertices = _room->readRdfWord(offset + 8);
offset = offset + 10 + numVertices * 4;
}
else {
if (isPointInPolygon((int16 *)(_room->_rdfData + offset), x, y)) {
int actorIndex = _room->readRdfWord(offset);
return actorIndex;
}
int numVertices = _room->readRdfWord(offset + 2);
offset = offset + 4 + numVertices * 4;
}
}
return -1;
}
/**
* Loads a bitmap for the animation frame with the given scale.
*/
SharedPtr<Bitmap> StarTrekEngine::loadAnimationFrame(const Common::String &filename, Fixed16 scale) {
SharedPtr<Bitmap> bitmapToReturn;
char basename[5];
strncpy(basename, filename.c_str()+1, 4);
basename[4] = '\0';
char c = filename[0];
if ((strcmp(basename, "stnd") == 0 || strcmp(basename, "tele") == 0)
&& (c == 'm' || c == 's' || c == 'k' || c == 'r')) {
if (c == 'm') {
// Mccoy has the "base" animations for all crewmen
bitmapToReturn = _gfx->loadBitmap(filename);
}
else {
// All crewman other than mccoy copy the animation frames from mccoy, change
// the colors of the uniforms, and load an "xor" file to redraw the face.
// TODO: The ".$bm" extension is a "virtual file"? Caches the changes to the
// file made here?
// bitmapToReturn = _gfx->loadBitmap(filename + ".$bm");
if (bitmapToReturn == nullptr) {
Common::String mccoyFilename = filename;
mccoyFilename.setChar('m', 0);
SharedPtr<Bitmap> bitmap = _gfx->loadBitmap(mccoyFilename);
uint16 width = bitmap->width;
uint16 height = bitmap->height;
bitmapToReturn = SharedPtr<Bitmap>(new Bitmap(width, height));
bitmapToReturn->xoffset = bitmap->xoffset;
bitmapToReturn->yoffset = bitmap->yoffset;
// Change uniform color
int16 colorShift;
switch (c) {
case 'k': // Kirk
colorShift = 8;
break;
case 'r': // Redshirt
colorShift = -8;
break;
case 's': // Spock
colorShift = 0;
break;
}
if (colorShift == 0) {
memcpy(bitmapToReturn->pixels, bitmap->pixels, width * height);
}
else {
byte *src = bitmap->pixels;
byte *dest = bitmapToReturn->pixels;
byte baseUniformColor = 0xa8;
for (int i = 0; i < width * height; i++) {
byte b = *src++;
if (b >= baseUniformColor && b < baseUniformColor + 8)
*dest++ = b + colorShift;
else
*dest++ = b;
}
}
// Redraw face with xor file
SharedPtr<FileStream> xorFile = loadFile(filename + ".xor");
xorFile->seek(0, SEEK_SET);
uint16 xoffset = bitmap->xoffset - xorFile->readUint16();
uint16 yoffset = bitmap->yoffset - xorFile->readUint16();
uint16 xorWidth = xorFile->readUint16();
uint16 xorHeight = xorFile->readUint16();
byte *dest = bitmapToReturn->pixels + yoffset * bitmap->width + xoffset;
for (int i = 0; i < xorHeight; i++) {
for (int j = 0; j < xorWidth; j++)
*dest++ ^= xorFile->readByte();
dest += (bitmap->width - xorWidth);
}
}
}
}
else {
// TODO: when loading a bitmap, it passes a different argument than is standard to
// the "file loading with cache" function...
bitmapToReturn = _gfx->loadBitmap(filename);
}
if (scale != 256) {
bitmapToReturn = scaleBitmap(bitmapToReturn, scale);
}
return bitmapToReturn;
}
/**
* Called when the "get" action is first selected. Returns a selected object.
* This behaves like other menus in that it holds game execution, but no actual menu pops
* up; it just waits for the player to select something on the screen.
*/
int StarTrekEngine::selectObjectForUseAction() {
while (true) {
if (!(_awayMission.crewDownBitset & (1 << OBJECT_KIRK)))
showInventoryIcons(false);
TrekEvent event;
while (true) {
if (!getNextEvent(&event))
continue;
if (event.type == TREKEVENT_TICK) {
updateMouseBitmap();
_gfx->drawAllSprites();
_sound->checkLoopMusic();
}
else if (event.type == TREKEVENT_LBUTTONDOWN) {
removeNextEvent();
break;
}
else if (event.type == TREKEVENT_MOUSEMOVE) {
}