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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 "startrek/iwfile.h"
#include "startrek/room.h"
#include "startrek/startrek.h"
namespace StarTrek {
void StarTrekEngine::initAwayMission() {
_awayMission = AwayMission(); // Initialize members to 0
// memset(bitmapBuffer->pixels, 0, 0xfa00);
_txtFilename = "ground";
_loadedText = "";
// sub_23a60(); // TODO
_sound->loadMusicFile("ground");
loadRoom(_missionToLoad, _roomIndexToLoad);
_roomIndexToLoad = -1;
// Load crew positions for beaming in
initAwayCrewPositions(4);
}
void StarTrekEngine::runAwayMission() {
while (true) {
// Original game manipulates the stack when the room changes to return execution
// to this point. Instead of doing that, just check if a variable is set.
if (_roomIndexToLoad != -1 && _spawnIndexToLoad != -1) {
loadRoomIndex(_roomIndexToLoad, _spawnIndexToLoad);
_roomIndexToLoad = -1;
_spawnIndexToLoad = -1;
}
handleAwayMissionEvents();
Common::Point mousePos = _gfx->getMousePos();
_awayMission.mouseX = mousePos.x;
_awayMission.mouseY = mousePos.y;
assert(_actionQueue.size() <= 16);
while (!_actionQueue.empty()) {
// sub_200e7(); // TODO
// sub_20118();
handleAwayMissionAction();
}
}
}
void StarTrekEngine::cleanupAwayMission() {
// TODO
}
void StarTrekEngine::loadRoom(const Common::String &missionName, int roomIndex) {
_keyboardControlsMouse = true;
_missionName = _missionToLoad;
_roomIndex = roomIndex;
_roomFrameCounter = 0;
_awayMission.disableInput = false;
_gfx->fadeoutScreen();
_sound->stopAllVocSounds();
_screenName = _missionName + (char)(_roomIndex + '0');
_gfx->setBackgroundImage(_gfx->loadBitmap(_screenName));
_gfx->loadPri(_screenName);
_gfx->loadPalette("palette");
_gfx->copyBackgroundScreen();
_room = SharedPtr<Room>(new Room(this, _screenName));
// Original sets up bytes 0-3 of rdf file as "remote function caller"
// Load map file
_awayMission.activeAction = ACTION_WALK;
_mapFilename = _screenName;
_mapFile = loadFile(_mapFilename + ".map");
_iwFile = SharedPtr<IWFile>(new IWFile(this, _mapFilename + ".iw"));
actorFunc1();
initActors();
Fixed8 num = _room->getMaxScale() - _room->getMinScale();
int16 den = _room->getMaxY() - _room->getMinY() + 1;
_playerActorScale = Fixed16(num) / den;
// TODO: RDF vars 1e/1f and 20/21; relates to BAN files?
_actionQueue.clear();
}
void StarTrekEngine::initAwayCrewPositions(int warpEntryIndex) {
_sound->stopAllVocSounds();
memset(_awayMission.crewDirectionsAfterWalk, 0xff, 4);
switch (warpEntryIndex) {
case 0: // 0-3: Crew spawns in a spot and walks to a spot.
case 1:
case 2:
case 3:
for (int i = 0; i < (_awayMission.redshirtDead ? 3 : 4); i++) {
Common::String anim = getCrewmanAnimFilename(i, "walk");
int16 rdfOffset = RDF_ROOM_ENTRY_POSITIONS + warpEntryIndex * 32 + i * 8;
int16 srcX = _room->readRdfWord(rdfOffset + 0); // Position to spawn at
int16 srcY = _room->readRdfWord(rdfOffset + 2);
int16 destX = _room->readRdfWord(rdfOffset + 4); // Position to walk to
int16 destY = _room->readRdfWord(rdfOffset + 6);
actorWalkToPosition(i, anim, srcX, srcY, destX, destY);
}
_kirkActor->triggerActionWhenAnimFinished = true;
_kirkActor->finishedAnimActionParam = 0xff;
_awayMission.disableInput = true;
_warpHotspotsActive = false;
break;
case 4: // Crew is beaming in.
warpEntryIndex -= 4;
for (int i = 0; i < (_awayMission.redshirtDead ? 3 : 4); i++) {
Common::String animFilename = getCrewmanAnimFilename(i, "tele");
Common::Point warpPos = _room->getBeamInPosition(i);
loadActorAnimWithRoomScaling(i, animFilename, warpPos.x, warpPos.y);
}
_kirkActor->triggerActionWhenAnimFinished = true;
_kirkActor->finishedAnimActionParam = 0xff;
_awayMission.disableInput = true;
playSoundEffectIndex(0x09);
_warpHotspotsActive = false;
break;
case 5: // Crew spawns in directly at a position.
for (int i = 0; i < (_awayMission.redshirtDead ? 3 : 4); i++) {
Common::String animFilename = getCrewmanAnimFilename(i, "stnds");
Common::Point warpPos = _room->getSpawnPosition(i);
loadActorAnimWithRoomScaling(i, animFilename, warpPos.x, warpPos.y);
}
_warpHotspotsActive = true;
break;
case 6:
error("initAwayCrewPositions(6) unimplemented");
break;
default:
warning("Invalid parameter (%d) to initAwayCrewPositions", warpEntryIndex);
break;
}
}
void StarTrekEngine::handleAwayMissionEvents() {
TrekEvent event;
int clickedObject = -1;
if (popNextEvent(&event)) {
switch (event.type) {
case TREKEVENT_TICK:
updateActorAnimations();
updateCrewmanGetupTimers();
updateMouseBitmap();
// doSomethingWithBanData1();
_gfx->drawAllSprites();
// doSomethingWithBanData2();
_sound->checkLoopMusic();
updateAwayMissionTimers();
_frameIndex++;
_roomFrameCounter++;
addAction(ACTION_TICK, _roomFrameCounter & 0xff, (_roomFrameCounter >> 8) & 0xff, 0);
if (_roomFrameCounter >= 2)
_gfx->incPaletteFadeLevel();
break;
case TREKEVENT_LBUTTONDOWN:
awayMissionLeftClick();
break; // End of TREKEVENT_LBUTTONDOWN
case TREKEVENT_MOUSEMOVE:
break;
case TREKEVENT_RBUTTONDOWN:
awayMissionSelectAction(true);
break;
case TREKEVENT_KEYDOWN:
if (_awayMission.disableInput)
break;
switch (event.kbd.keycode) {
case Common::KEYCODE_ESCAPE:
case Common::KEYCODE_SPACE:
case Common::KEYCODE_F2:
awayMissionSelectAction(true);
break;
case Common::KEYCODE_w:
hideInventoryIcons();
_awayMission.activeAction = ACTION_WALK;
break;
case Common::KEYCODE_t:
hideInventoryIcons();
_awayMission.activeAction = ACTION_TALK;
awayMissionSelectAction(false);
break;
case Common::KEYCODE_u:
hideInventoryIcons();
_awayMission.activeAction = ACTION_USE;
awayMissionSelectAction(false);
break;
case Common::KEYCODE_i:
if (_awayMission.activeAction == ACTION_USE) {
hideInventoryIcons();
clickedObject = showInventoryMenu(50, 50, true);
if (clickedObject == -1)
clickedObject = -2;
awayMissionUseObject(clickedObject);
} else if (_awayMission.activeAction == ACTION_LOOK) {
hideInventoryIcons();
clickedObject = showInventoryMenu(50, 50, true);
if (clickedObject == -1)
clickedObject = -2;
awayMissionGetLookOrTalk(clickedObject);
}
break;
case Common::KEYCODE_RETURN:
case Common::KEYCODE_KP_ENTER:
case Common::KEYCODE_F1:
awayMissionLeftClick();
break;
case Common::KEYCODE_g:
hideInventoryIcons();
_awayMission.activeAction = ACTION_GET;
awayMissionSelectAction(false);
break;
case Common::KEYCODE_l:
hideInventoryIcons();
_awayMission.activeAction = ACTION_LOOK;
awayMissionSelectAction(false);
break;
default:
break;
}
break;
default:
break;
}
}
}
void StarTrekEngine::awayMissionLeftClick() {
if (_awayMission.disableInput)
return;
switch (_awayMission.activeAction) {
case ACTION_WALK: {
if (_awayMission.disableWalking)
break;
_kirkActor->sprite.drawMode = 1; // Hide these objects for function call below?
_spockActor->sprite.drawMode = 1;
_mccoyActor->sprite.drawMode = 1;
_redshirtActor->sprite.drawMode = 1;
int16 clickedObject = findObjectAt(_gfx->getMousePos());
_kirkActor->sprite.drawMode = 0;
_spockActor->sprite.drawMode = 0;
_mccoyActor->sprite.drawMode = 0;
_redshirtActor->sprite.drawMode = 0;
if (walkActiveObjectToHotspot())
break;
if (clickedObject > OBJECT_KIRK && clickedObject < ITEMS_START)
addAction(ACTION_WALK, clickedObject, 0, 0);
else {
Common::String animFilename = getCrewmanAnimFilename(OBJECT_KIRK, "walk");
Common::Point mousePos = _gfx->getMousePos();
actorWalkToPosition(OBJECT_KIRK, animFilename, _kirkActor->pos.x, _kirkActor->pos.y, mousePos.x, mousePos.y);
}
break;
}
case ACTION_USE: {
if (_awayMission.activeObject == OBJECT_REDSHIRT && (_awayMission.redshirtDead || (_awayMission.crewDownBitset & (1 << OBJECT_REDSHIRT)))) {
hideInventoryIcons();
_awayMission.activeAction = ACTION_WALK;
break;
}
int16 clickedObject = findObjectAt(_gfx->getMousePos());
hideInventoryIcons();
if (clickedObject == OBJECT_INVENTORY_ICON) {
clickedObject = showInventoryMenu(50, 50, false);
// -1 means "clicked on something unknown"; -2 means "clicked on
// nothing". In the case of the inventory, either one clicks on an
// inventory item, or no action is performed.
if (clickedObject == -1)
clickedObject = -2;
}
awayMissionUseObject(clickedObject);
break;
}
case ACTION_GET:
case ACTION_LOOK:
case ACTION_TALK: {
int16 clickedObject = findObjectAt(_gfx->getMousePos());
if (!isObjectUnusable(clickedObject, _awayMission.activeAction)) {
hideInventoryIcons();
if (clickedObject == OBJECT_INVENTORY_ICON) {
clickedObject = showInventoryMenu(50, 50, false);
if (clickedObject == -1)
clickedObject = -2;
}
awayMissionGetLookOrTalk(clickedObject);
}
break;
}
}
}
void StarTrekEngine::awayMissionSelectAction(bool openActionMenu) {
if (openActionMenu) {
if (_awayMission.disableInput)
return;
hideInventoryIcons();
playSoundEffectIndex(SND_07);
_awayMission.activeAction = showActionMenu();
}
if (_awayMission.activeAction == ACTION_USE) {
int16 clickedObject = selectObjectForUseAction();
if (clickedObject == -1)
return;
else
_awayMission.activeObject = clickedObject;
}
if (_awayMission.activeAction == ACTION_USE
&& _awayMission.activeObject == OBJECT_ICOMM && (_awayMission.crewDownBitset & (1 << OBJECT_KIRK)) == 0) {
if (!walkActiveObjectToHotspot()) {
addAction(_awayMission.activeAction, _awayMission.activeObject, 0, 0);
_sound->playVoc("communic");
_awayMission.activeAction = ACTION_WALK;
}
} else if (_awayMission.activeAction == ACTION_LOOK)
showInventoryIcons(false);
else if (_awayMission.activeAction == ACTION_USE && (_awayMission.crewDownBitset & (1 << OBJECT_KIRK)) == 0)
showInventoryIcons(true);
}
void StarTrekEngine::awayMissionUseObject(int16 clickedObject) {
_awayMission.passiveObject = clickedObject;
bool activeIsCrewman = _awayMission.activeObject <= OBJECT_REDSHIRT;
bool activeIsItem = _awayMission.activeObject >= ITEMS_START && _awayMission.activeObject < ITEMS_END;
bool passiveIsCrewman = _awayMission.passiveObject <= OBJECT_REDSHIRT;
bool passiveIsItem = _awayMission.passiveObject >= ITEMS_START && _awayMission.passiveObject <= ITEMS_END; // FIXME: "<= ITEMS_END" doesn't make sense?
bool tryWalkToHotspot = false;
bool showInventory = false;
if (clickedObject == -2)
tryWalkToHotspot = true;
else if (_room->actionHasCode(ACTION_USE, _awayMission.activeObject, _awayMission.passiveObject, 0))
tryWalkToHotspot = true;
else if (_awayMission.activeObject == OBJECT_MCCOY && _room->actionHasCode(ACTION_USE, OBJECT_IMEDKIT, _awayMission.passiveObject, 0))
tryWalkToHotspot = true;
else if (_awayMission.activeObject == OBJECT_MCCOY && _room->actionHasCode(ACTION_USE, OBJECT_IMEDKIT, _awayMission.passiveObject, 0))
tryWalkToHotspot = true;
else if (_awayMission.activeObject == OBJECT_SPOCK &&_room->actionHasCode(ACTION_USE, OBJECT_ISTRICOR, _awayMission.passiveObject, 0))
tryWalkToHotspot = true;
if (!tryWalkToHotspot) {
if ((activeIsCrewman && passiveIsCrewman)
|| (activeIsCrewman && passiveIsItem)
|| (activeIsItem && passiveIsItem)) {
if (_awayMission.passiveObject == OBJECT_ICOMM) {
if (walkActiveObjectToHotspot())
return;
addAction(ACTION_USE, OBJECT_ICOMM, 0, 0);
_sound->playVoc("commun30");
if (_awayMission.activeObject <= OBJECT_REDSHIRT) {
showInventory = true;
} else {
_awayMission.activeAction = ACTION_WALK;
return;
}
}
_awayMission.activeObject = _awayMission.passiveObject;
showInventory = true;
} else
tryWalkToHotspot = true;
}
if (tryWalkToHotspot) {
if (!walkActiveObjectToHotspot()) {
if (clickedObject != -2)
addAction(_awayMission.activeAction, _awayMission.activeObject, _awayMission.passiveObject, 0);
showInventory = true;
}
}
if (showInventory && !(_awayMission.crewDownBitset & (1 << OBJECT_KIRK)))
showInventoryIcons(true);
}
void StarTrekEngine::awayMissionGetLookOrTalk(int16 clickedObject) {
_awayMission.activeObject = clickedObject;
if (walkActiveObjectToHotspot())
return;
if (clickedObject != -2)
addAction(_awayMission.activeAction, _awayMission.activeObject, 0, 0);
if (_awayMission.activeAction == ACTION_LOOK && !(_awayMission.crewDownBitset & (1 << OBJECT_KIRK)))
showInventoryIcons(false);
}
void StarTrekEngine::unloadRoom() {
_gfx->fadeoutScreen();
// sub_2394b(); // TODO
actorFunc1();
_room.reset();
_mapFile.reset();
}
/**
* Similar to loadActorAnim, but scale is determined by the y-position in the room. The
* further up (away) the object is, the smaller it is.
*/
int StarTrekEngine::loadActorAnimWithRoomScaling(int actorIndex, const Common::String &animName, int16 x, int16 y) {
Fixed8 scale = getActorScaleAtPosition(y);
return loadActorAnim(actorIndex, animName, x, y, scale);
}
Fixed8 StarTrekEngine::getActorScaleAtPosition(int16 y) {
int16 maxY = _room->getMaxY();
int16 minY = _room->getMinY();
Fixed8 minScale = _room->getMinScale();
if (y > maxY)
y = maxY;
if (y < minY)
y = minY;
return Fixed8(_playerActorScale * (y - minY)) + minScale;
}
SharedPtr<Room> StarTrekEngine::getRoom() {
return _room;
}
void StarTrekEngine::addAction(const Action &action) {
if (action.type != ACTION_TICK)
debug("Action %d: %x, %x, %x", action.type, action.b1, action.b2, action.b3);
_actionQueue.push(action);
}
void StarTrekEngine::addAction(byte type, byte b1, byte b2, byte b3) {
const Action a = {type, b1, b2, b3};
addAction(a);
}
void StarTrekEngine::handleAwayMissionAction() {
Action action = _actionQueue.pop();
if ((action.type == ACTION_FINISHED_ANIMATION || action.type == ACTION_FINISHED_WALKING) && action.b1 == 0xff) {
// Just finished walking or beaming into a room
if (_awayMission.disableInput == 1)
_awayMission.disableInput = false;
_warpHotspotsActive = true;
return;
} else if (action.type == ACTION_FINISHED_WALKING && action.b1 >= 0xe0) {
// Finished walking to a position; perform the action that was input back when
// they started walking over there.
int index = action.b1 - 0xe0;
addAction(_actionOnWalkCompletion[index]);
_actionOnWalkCompletionInUse[index] = false;
}
if (_room->handleAction(action))
return;
// Action not defined for the room, check for default behaviour
switch (action.type) {
case ACTION_WALK:
if (!_room->handleActionWithBitmask(action)) {
Common::String animFilename = getCrewmanAnimFilename(OBJECT_KIRK, "walk");
Common::Point mousePos = _gfx->getMousePos();
actorWalkToPosition(OBJECT_KIRK, animFilename, _kirkActor->pos.x, _kirkActor->pos.y, mousePos.x, mousePos.y);
}
break;
case ACTION_USE:
if (action.activeObject() != action.passiveObject()) {
switch (action.activeObject()) {
case OBJECT_KIRK:
// BUGFIX: Don't allow the "use" action to bypass the "disableWalking" variable
if (!(!_awayMission.disableWalking && _room->handleAction(ACTION_WALK, action.passiveObject(), 0, 0))
&& !_room->handleAction(ACTION_GET, action.passiveObject(), 0, 0)) {
showTextbox("Capt. Kirk", getLoadedText(GROUNDTX_KIRK_USE), 20, 20, TEXTCOLOR_YELLOW, 0);
}
break;
case OBJECT_SPOCK:
if (!_room->handleAction(ACTION_USE, OBJECT_ISTRICOR, action.passiveObject(), 0)) {
// BUGFIX: Original game has just "Spock" instead of "Mr. Spock" as the
// speaker. That's inconsistent.
// Same applies to other parts of this function.
showTextbox("Mr. Spock", getLoadedText(GROUNDTX_SPOCK_USE), 20, 20, TEXTCOLOR_BLUE, 0);
}
break;
case OBJECT_MCCOY:
if (!_room->handleAction(ACTION_USE, OBJECT_IMEDKIT, action.passiveObject(), 0)
&& !_room->handleAction(ACTION_USE, OBJECT_IMTRICOR, action.passiveObject(), 0)) {
// BUGFIX: Original game has just "McCoy" instead of "Dr. McCoy".
showTextbox("Dr. McCoy", getLoadedText(GROUNDTX_MCCOY_USE), 20, 20, TEXTCOLOR_BLUE, 0);
}
break;
case OBJECT_REDSHIRT:
showTextbox(nullptr, getLoadedText(GROUNDTX_REDSHIRT_USE), 20, 20, TEXTCOLOR_YELLOW, 0);
break;
case OBJECT_IPHASERS:
case OBJECT_IPHASERK:
if (action.passiveObject() == OBJECT_SPOCK) {
int text = GROUNDTX_PHASER_ON_SPOCK + getRandomWord() % 8;
showTextbox("Mr. Spock", getLoadedText(text), 20, 20, TEXTCOLOR_BLUE, 0);
} else if (action.passiveObject() == OBJECT_MCCOY) {
int text = GROUNDTX_PHASER_ON_MCCOY + getRandomWord() % 8;
showTextbox("Dr. McCoy", getLoadedText(text), 20, 20, TEXTCOLOR_BLUE, 0);
} else if (action.passiveObject() == OBJECT_REDSHIRT) {
Common::String text = getLoadedText(GROUNDTX_PHASER_ON_REDSHIRT + getRandomWord() % 8);
// Replace audio filename with start of mission name (to load the
// audio for the crewman specific to the mission))
text.setChar(_missionName[0], 6);
text.setChar(_missionName[1], 7);
text.setChar(_missionName[2], 8);
showTextbox("Security Officer", text, 20, 20, TEXTCOLOR_RED, 0);
// TODO: replace "Security Officer" string with their actual name as
// an enhancement?
} else if (!_room->handleActionWithBitmask(action)) {
int index = getRandomWord() % 7;
if (index & 1)
showTextbox("Dr. McCoy", getLoadedText(GROUNDTX_PHASER_ANYWHERE + index), 20, 20, TEXTCOLOR_BLUE, 0);
else
showTextbox("Mr. Spock", getLoadedText(GROUNDTX_PHASER_ANYWHERE + index), 20, 20, TEXTCOLOR_BLUE, 0);
}
break;
case OBJECT_ISTRICOR:
showTextbox("Mr. Spock", getLoadedText(GROUNDTX_SPOCK_SCAN), 20, 20, TEXTCOLOR_BLUE, 0);
break;
case OBJECT_IMTRICOR:
showTextbox("Dr. McCoy", getLoadedText(GROUNDTX_MCCOY_SCAN), 20, 20, TEXTCOLOR_BLUE, 0);
break;
case OBJECT_ICOMM:
if (!_room->handleAction(ACTION_USE, OBJECT_ICOMM, -1, 0))
showTextbox("Lt. Uhura", getLoadedText(GROUNDTX_USE_COMMUNICATOR), 20, 20, TEXTCOLOR_RED, 0);
break;
case OBJECT_IMEDKIT:
showTextbox("Dr. McCoy", getLoadedText(GROUNDTX_USE_MEDKIT), 20, 20, TEXTCOLOR_BLUE, 0);
break;
default:
if (!_room->handleActionWithBitmask(action.type, action.b1, action.b2, action.b3))
showTextbox("", getLoadedText(GROUNDTX_NOTHING_HAPPENS), 20, 20, TEXTCOLOR_YELLOW, 0);
}
}
break;
case ACTION_GET:
if (!_room->handleActionWithBitmask(action.type, action.b1, action.b2, action.b3))
showTextbox("", getLoadedText(GROUNDTX_FAIL_TO_OBTAIN_ANYTHING), 20, 20, TEXTCOLOR_YELLOW, 0);
break;
case ACTION_LOOK:
if (action.activeObject() >= ITEMS_START && action.activeObject() < ITEMS_END) {
int i = action.activeObject() - ITEMS_START;
Common::String text = getLoadedText(_itemList[i].textIndex);
showTextbox("", text, 20, 20, TEXTCOLOR_YELLOW, 0);
} else if (action.activeObject() == OBJECT_KIRK)
showTextbox("", getLoadedText(GROUNDTX_LOOK_KIRK), 20, 20, TEXTCOLOR_YELLOW, 0);
else if (action.activeObject() == OBJECT_SPOCK)
showTextbox("", getLoadedText(GROUNDTX_LOOK_SPOCK), 20, 20, TEXTCOLOR_YELLOW, 0);
else if (action.activeObject() == OBJECT_MCCOY)
showTextbox("", getLoadedText(GROUNDTX_LOOK_MCCOY), 20, 20, TEXTCOLOR_YELLOW, 0);
else if (action.activeObject() == OBJECT_REDSHIRT)
showTextbox("", getLoadedText(GROUNDTX_LOOK_REDSHIRT), 20, 20, TEXTCOLOR_YELLOW, 0);
else
// Show generic "nothing of note" text.
// BUGFIX: originally this was shown after the redshirt's text as well.
// Though, the original game may not have used this default implementation
// anywhere...
showTextbox("", getLoadedText(GROUNDTX_LOOK_ANYWHERE), 20, 20, TEXTCOLOR_YELLOW, 0);
break;
case ACTION_TALK:
switch (action.activeObject()) {
case OBJECT_KIRK:
case OBJECT_SPOCK:
case OBJECT_MCCOY:
case OBJECT_REDSHIRT:
showTextbox("", getLoadedText(GROUNDTX_TALK_TO_CREWMAN), 20, 20, TEXTCOLOR_YELLOW, 0);
break;
default:
showTextbox("", getLoadedText(GROUNDTX_NO_RESPONSE), 20, 20, TEXTCOLOR_YELLOW, 0);
break;
}
break;
case ACTION_TOUCHED_WARP:
if (!_room->handleActionWithBitmask(action)) {
byte warpIndex = action.b1;
int16 roomIndex = _room->readRdfWord(RDF_WARP_ROOM_INDICES + warpIndex * 2);
unloadRoom();
_sound->loadMusicFile("ground");
loadRoom(_missionName, roomIndex);
initAwayCrewPositions(warpIndex ^ 1);
}
break;
default:
_room->handleActionWithBitmask(action);
break;
}
}
/**
* Returns true if the given position is contained in a polygon?
*
* The data passed contains the following words in this order:
* * Index of polygon (unused here)
* * Number of vertices in polygon
* * For each vertex: x and y coordinates.
*/
bool StarTrekEngine::isPointInPolygon(int16 *data, int16 x, int16 y) {
int16 numVertices = data[1];
int16 *vertData = &data[2];
for (int i = 0; i < numVertices; i++) {
Common::Point p1(vertData[0], vertData[1]);
Common::Point p2;
if (i == numVertices - 1) // Loop to 1st vertex
p2 = Common::Point(data[2], data[3]);
else
p2 = Common::Point(vertData[2], vertData[3]);
if ((p2.x - p1.x) * (y - p1.y) - (p2.y - p1.y) * (x - p1.x) < 0)
return false;
vertData += 2;
}
return true;
}
void StarTrekEngine::checkTouchedLoadingZone(int16 x, int16 y) {
int16 offset = _room->getFirstDoorPolygonOffset();
while (offset != _room->getDoorPolygonEndOffset()) {
if (isPointInPolygon((int16*)(_room->_rdfData + offset), x, y)) {
uint16 var = _room->readRdfWord(offset);
if (_activeDoorWarpHotspot != var) {
_activeDoorWarpHotspot = var;
addAction(ACTION_TOUCHED_HOTSPOT, var & 0xff, 0, 0);
}
return;
}
int16 numVertices = _room->readRdfWord(offset + 2);
offset += numVertices * 4 + 4;
}
_activeDoorWarpHotspot = -1;
if (_awayMission.crewDownBitset == 0 && _warpHotspotsActive) {
offset = _room->getFirstWarpPolygonOffset();
while (offset != _room->getWarpPolygonEndOffset()) {
if (isPointInPolygon((int16*)(_room->_rdfData + offset), x, y)) {
uint16 var = _room->readRdfWord(offset);
if (_activeWarpHotspot != var) {
_activeWarpHotspot = var;
addAction(ACTION_TOUCHED_WARP, var & 0xff, 0, 0);
}
return;
}
int16 numVertices = _room->readRdfWord(offset + 2);
offset += numVertices * 4 + 4;
}
}
_activeWarpHotspot = -1;
}
/**
* Updates any nonzero away mission timers, and invokes ACTION_TIMER_EXPIRED when any one
* reaches 0.
*/
void StarTrekEngine::updateAwayMissionTimers() {
for (int i = 0; i < 8; i++) {
if (_awayMission.timers[i] == 0)
continue;
_awayMission.timers[i]--;
if (_awayMission.timers[i] == 0)
addAction(ACTION_TIMER_EXPIRED, i, 0, 0);
}
}
/**
* Returns true if the given position in the room is solid (not walkable).
* Reads from a ".map" file which has a bit for each position in the room, which is true
* when that position is solid.
*/
bool StarTrekEngine::isPositionSolid(int16 x, int16 y) {
assert(x >= 0 && x < SCREEN_WIDTH && y >= 0 && y < SCREEN_HEIGHT);
_mapFile->seek((y * SCREEN_WIDTH + x) / 8, SEEK_SET);
return _mapFile->readByte() & (0x80 >> (x % 8));
}
void StarTrekEngine::loadRoomIndex(int roomIndex, int spawnIndex) {
unloadRoom();
_sound->loadMusicFile("ground");
loadRoom(_missionName, roomIndex);
initAwayCrewPositions(spawnIndex % 6);
// WORKAROUND: original game calls "retrieveStackVars" to return execution directly to
// the top of "runAwayMission". That can't really be done here. But does it matter?
}
}
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