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game.cpp
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game.cpp
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/*
* Heart of Darkness engine rewrite
* Copyright (C) 2009-2011 Gregory Montoir (cyx@users.sourceforge.net)
*/
#include "game.h"
#include "fileio.h"
#include "level.h"
#include "lzw.h"
#include "paf.h"
#include "screenshot.h"
#include "system.h"
#include "util.h"
#include "video.h"
// starting level cutscene number
static const uint8_t _cutscenes[] = { 0, 2, 4, 5, 6, 8, 10, 14, 19 };
Game::Game(const char *dataPath, const char *savePath, uint32_t cheats)
: _fs(dataPath, savePath) {
_level = 0;
_res = new Resource(&_fs);
_paf = new PafPlayer(&_fs);
_rnd.setSeed();
_video = new Video();
_cheats = cheats;
_playDemo = false;
_frameMs = kFrameDuration;
_difficulty = 1; // normal
memset(_screenLvlObjectsList, 0, sizeof(_screenLvlObjectsList));
_andyObject = 0;
_plasmaExplosionObject = 0;
_plasmaCannonObject = 0;
memset(_spritesTable, 0, sizeof(_spritesTable));
memset(_typeSpritesList, 0, sizeof(_typeSpritesList));
_directionKeyMask = 0;
_actionKeyMask = 0;
_currentScreen = 0;
_lvlObjectsList0 = 0;
_lvlObjectsList1 = 0;
_lvlObjectsList2 = 0;
_lvlObjectsList3 = 0;
memset(_screenMaskBuffer, 0, sizeof(_screenMaskBuffer));
memset(_shootLvlObjectDataTable, 0, sizeof(_shootLvlObjectDataTable));
_mstAndyCurrentScreenNum = -1;
_plasmaCannonDirection = 0;
_andyActionKeyMaskAnd = 0xFF;
_andyActionKeyMaskOr = 0;
_andyDirectionKeyMaskAnd = 0xFF;
_andyDirectionKeyMaskOr = 0;
_mstDisabled = false;
_specialAnimMask = 0; // original only clears ~0x30
_mstCurrentAnim = 0;
_mstOriginPosX = Video::W / 2;
_mstOriginPosY = Video::H / 2;
memset(_declaredLvlObjectsList, 0, sizeof(_declaredLvlObjectsList));
_declaredLvlObjectsNextPtr = 0;
_declaredLvlObjectsListCount = 0;
memset(_animBackgroundDataTable, 0, sizeof(_animBackgroundDataTable));
_animBackgroundDataCount = 0;
memset(_monsterObjects1Table, 0, sizeof(_monsterObjects1Table));
memset(_monsterObjects2Table, 0, sizeof(_monsterObjects2Table));
_sssDisabled = false;
_snd_muted = false;
_snd_bufferOffset = _snd_bufferSize = 0;
_snd_masterPanning = kDefaultSoundPanning;
_snd_masterVolume = kDefaultSoundVolume;
_sssObjectsCount = 0;
_sssObjectsList1 = 0;
_sssObjectsList2 = 0;
_playingSssObjectsMax = 16; // 10 if (lowMemory || slowCPU)
}
Game::~Game() {
delete _paf;
delete _res;
delete _video;
}
void Game::resetShootLvlObjectDataTable() {
_shootLvlObjectDataNextPtr = &_shootLvlObjectDataTable[0];
for (int i = 0; i < kMaxShootLvlObjectData - 1; ++i) {
_shootLvlObjectDataTable[i].nextPtr = &_shootLvlObjectDataTable[i + 1];
}
_shootLvlObjectDataTable[kMaxShootLvlObjectData - 1].nextPtr = 0;
}
void Game::clearShootLvlObjectData(LvlObject *ptr) {
ShootLvlObjectData *dat = (ShootLvlObjectData *)getLvlObjectDataPtr(ptr, kObjectDataTypeShoot);
dat->nextPtr = _shootLvlObjectDataNextPtr;
_shootLvlObjectDataNextPtr = dat;
ptr->dataPtr = 0;
}
void Game::addShootLvlObject(LvlObject *vd, LvlObject *ptr) {
vd->dataPtr = _shootLvlObjectDataNextPtr;
if (_shootLvlObjectDataNextPtr) {
_shootLvlObjectDataNextPtr = _shootLvlObjectDataNextPtr->nextPtr;
memset(vd->dataPtr, 0, sizeof(ShootLvlObjectData));
} else {
warning("Nothing free in _shootLvlObjectDataNextPtr");
}
vd->xPos = ptr->xPos;
vd->yPos = ptr->yPos;
vd->flags1 &= ~0x30;
vd->screenNum = ptr->screenNum;
vd->anim = 7;
vd->frame = 0;
vd->bitmapBits = 0;
vd->flags2 = (ptr->flags2 & ~0x2000) - 1;
vd->nextPtr = _lvlObjectsList0;
_lvlObjectsList0 = vd;
}
void Game::setShakeScreen(int type, int counter) {
static const uint8_t table1[] = { 1, 2, 3, 4 };
static const uint8_t table2[] = { 2, 3, 4, 5 };
static const uint8_t table3[] = { 3, 4, 5, 8 };
switch (type) {
case 1:
_shakeScreenTable = table1;
break;
case 2:
_shakeScreenTable = table2;
break;
case 3:
_shakeScreenTable = table3;
break;
default:
return;
}
_shakeScreenDuration = counter;
}
void Game::fadeScreenPalette() {
if (!_fadePalette) {
assert(_levelRestartCounter != 0);
for (int i = 0; i < 256 * 3; ++i) {
_video->_fadePaletteBuffer[i] = _video->_displayPaletteBuffer[i] / _levelRestartCounter;
}
_fadePalette = true;
} else {
if (_levelRestartCounter != 0) {
_snd_masterVolume -= _snd_masterVolume / _levelRestartCounter;
if (_snd_masterVolume < 0) {
_snd_masterVolume = 0;
}
}
--_levelRestartCounter;
}
for (int i = 0; i < 256 * 3; ++i) {
int color = _video->_displayPaletteBuffer[i] - _video->_fadePaletteBuffer[i];
if (color < 0) {
color = 0;
}
_video->_displayPaletteBuffer[i] = color;
}
_video->_paletteChanged = true;
}
void Game::shakeScreen() {
if (_video->_displayShadowLayer) {
const int num = (_currentLevel == kLvl_lava || _currentLevel == kLvl_lar1) ? 1 : 4;
transformShadowLayer(num);
}
if (_shakeScreenDuration != 0) {
--_shakeScreenDuration;
if (_shakeScreenDuration != 0) {
const int r1 = _rnd.update() & 3;
const int r2 = _rnd.update() & 3;
int dx = _shakeScreenTable[r2] & ~3;
if (r1 & 1) {
dx = -dx;
}
int dy = _shakeScreenTable[r1];
if (_shakeScreenDuration & 1) {
dy = -dy;
}
g_system->shakeScreen(dx, dy);
}
}
if (_levelRestartCounter != 0) {
fadeScreenPalette();
}
}
static BoundingBox _screenTransformRects[] = {
{ 0, 0, 0, 0 },
{ 0, 0, 255, 128 },
{ 0, 10, 154, 126 },
{ 0, 0, 107, 36 },
{ 0, 1, 78, 29 },
{ 14, 7, 249, 72 },
{ 14, 0, 255, 72 },
{ 0, 0, 255, 144 },
{ 0, 0, 255, 144 },
{ 0, 69, 255, 191 }
};
void Game::transformShadowLayer(int delta) {
const uint8_t *src = _video->_transformShadowBuffer + _video->_transformShadowLayerDelta;
uint8_t *dst = _video->_shadowLayer;
_video->_transformShadowLayerDelta += delta; // overflow/wrap at 255
for (int y = 0; y < Video::H; ++y) {
if (0) { // original clips the screen width to 250px
for (int x = 0; x < Video::W - 6; ++x) {
const int offset = x + *src++;
*dst++ = _video->_frontLayer[y * Video::W + offset];
}
memset(dst, Video::CLEAR_COLOR, 6);
dst += 6;
src += 6;
} else {
for (int x = 0; x < Video::W; ++x) {
const int offset = MIN(255, x + *src++);
*dst++ = _video->_frontLayer[y * Video::W + offset];
}
}
}
uint8_t r = 0;
if (_currentLevel == kLvl_pwr1) {
r = _pwr1_screenTransformLut[_res->_currentScreenResourceNum * 2 + 1];
} else if (_currentLevel == kLvl_pwr2) {
r = _pwr2_screenTransformLut[_res->_currentScreenResourceNum * 2 + 1];
}
if (r != 0) {
assert(r < ARRAYSIZE(_screenTransformRects));
const BoundingBox *b = &_screenTransformRects[r];
const int offset = b->y1 * Video::W + b->x1;
src = _video->_frontLayer + offset;
dst = _video->_shadowLayer + offset;
for (int y = b->y1; y < b->y2; ++y) {
for (int x = b->x1; x < b->x2; ++x) {
dst[x] = src[x];
}
dst += Video::W;
src += Video::W;
}
}
}
void Game::loadTransformLayerData(const uint8_t *data) {
assert(!_video->_transformShadowBuffer);
_video->_transformShadowBuffer = (uint8_t *)malloc(256 * 192 + 256);
const int size = decodeLZW(data, _video->_transformShadowBuffer);
assert(size == 256 * 192);
memcpy(_video->_transformShadowBuffer + 256 * 192, _video->_transformShadowBuffer, 256);
}
void Game::unloadTransformLayerData() {
free(_video->_transformShadowBuffer);
_video->_transformShadowBuffer = 0;
}
void Game::decodeShadowScreenMask(LvlBackgroundData *lvl) {
uint8_t *dst = _video->_shadowScreenMaskBuffer;
for (int i = lvl->currentShadowId; i < lvl->shadowCount; ++i) {
const uint8_t *src = lvl->backgroundMaskTable[i];
if (src) {
const int decodedSize = decodeLZW(src + 2, dst);
_shadowScreenMasksTable[i].dataSize = READ_LE_UINT32(dst);
// header : 20 bytes
// projectionData : w * h * sizeof(uint16_t) - for a given (x, y) returns the casted (x, y)
// paletteData : 256 (only the first 144 bytes are read)
_shadowScreenMasksTable[i].projectionDataPtr = dst + 0x14 + READ_LE_UINT32(dst + 4);
_shadowScreenMasksTable[i].shadowPalettePtr = dst + 0x14 + READ_LE_UINT32(dst + 8);
const int x = _shadowScreenMasksTable[i].x = READ_LE_UINT16(dst + 0xC);
const int y = _shadowScreenMasksTable[i].y = READ_LE_UINT16(dst + 0xE);
const int w = _shadowScreenMasksTable[i].w = READ_LE_UINT16(dst + 0x10);
const int h = _shadowScreenMasksTable[i].h = READ_LE_UINT16(dst + 0x12);
debug(kDebug_GAME, "shadow screen mask #%d pos %d,%d dim %d,%d size %d", i, x, y, w, h, decodedSize);
const int size = w * h;
uint8_t *p = _shadowScreenMasksTable[i].projectionDataPtr + 2;
for (int j = 1; j < size; ++j) {
const int16_t offset = (int16_t)READ_LE_UINT16(p - 2) + (int16_t)READ_LE_UINT16(p);
// fprintf(stdout, "shadow #%d offset #%d 0x%x 0x%x\n", i, j, READ_LE_UINT16(p), offset);
WRITE_LE_UINT16(p, offset);
p += 2;
}
const int shadowPaletteSize = decodedSize - 20 - w * h * sizeof(uint16_t);
assert(shadowPaletteSize >= 144);
_video->buildShadowColorLookupTable(_shadowScreenMasksTable[i].shadowPalettePtr, _video->_shadowColorLookupTable);
dst += decodedSize;
}
}
}
// a: type/source (0, 1, 2) b: num/index (3, monster1Index, monster2.monster1Index)
SssObject *Game::playSound(int num, LvlObject *ptr, int a, int b) {
MixerLock ml(&_mix);
SssObject *so = 0;
if (num < _res->_sssHdr.infosDataCount) {
debug(kDebug_GAME, "playSound num %d/%d a=%d b=%d", num, _res->_sssHdr.infosDataCount, a, b);
_currentSoundLvlObject = ptr;
so = playSoundObject(&_res->_sssInfosData[num], a, b);
_currentSoundLvlObject = 0;
}
return so;
}
void Game::removeSound(LvlObject *ptr) {
MixerLock ml(&_mix);
for (int i = 0; i < _sssObjectsCount; ++i) {
if (_sssObjectsTable[i].lvlObject == ptr) {
_sssObjectsTable[i].lvlObject = 0;
}
}
ptr->sssObject = 0;
}
void Game::setupBackgroundBitmap() {
LvlBackgroundData *lvl = &_res->_resLvlScreenBackgroundDataTable[_res->_currentScreenResourceNum];
const int num = lvl->currentBackgroundId;
const uint8_t *pal = lvl->backgroundPaletteTable[num];
lvl->backgroundPaletteId = READ_LE_UINT16(pal); pal += 2;
const uint8_t *bmp = lvl->backgroundBitmapTable[num];
lvl->backgroundBitmapId = READ_LE_UINT16(bmp); bmp += 2;
if (lvl->backgroundPaletteId != 0xFFFF) {
playSound(lvl->backgroundPaletteId, 0, 0, 3);
}
if (lvl->backgroundBitmapId != 0xFFFF) {
playSound(lvl->backgroundBitmapId, 0, 0, 3);
}
if (_res->_isPsx) {
_video->decodeBackgroundPsx(bmp + 2, -1, Video::W, Video::H);
} else {
decodeLZW(bmp, _video->_backgroundLayer);
}
if (lvl->shadowCount != 0) {
decodeShadowScreenMask(lvl);
}
for (int i = 0; i < 256 * 3; ++i) {
_video->_displayPaletteBuffer[i] = pal[i] << 8;
}
_video->_paletteChanged = true;
}
void Game::addToSpriteList(Sprite *spr) {
_spritesNextPtr = spr->nextPtr;
const int index = spr->num & 0x1F;
spr->nextPtr = _typeSpritesList[index];
_typeSpritesList[index] = spr;
}
void Game::addToSpriteList(LvlObject *ptr) {
Sprite *spr = _spritesNextPtr;
if (spr) {
const uint8_t num = _res->_currentScreenResourceNum;
const uint8_t *grid = _res->_screensGrid[num];
LvlObjectData *dat = ptr->levelData0x2988;
LvlAnimHeader *ah = (LvlAnimHeader *)(dat->animsInfoData + kLvlAnimHdrOffset) + ptr->anim;
LvlAnimSeqHeader *ash = (LvlAnimSeqHeader *)(dat->animsInfoData + ah->seqOffset) + ptr->frame;
spr->num = (((ash->flags1 ^ ptr->flags1) & 0xFFF0) << 10) | (ptr->flags2 & 0x3FFF);
int index = ptr->screenNum;
spr->xPos = ptr->xPos;
spr->yPos = ptr->yPos;
if (index == grid[kPosTopScreen]) {
spr->yPos -= Video::H;
} else if (index == grid[kPosBottomScreen]) {
spr->yPos += Video::H;
} else if (index == grid[kPosRightScreen]) {
spr->xPos += Video::W;
} else if (index == grid[kPosLeftScreen]) {
spr->xPos -= Video::W;
} else if (index != num) {
return;
}
if (spr->xPos >= Video::W || spr->xPos + ptr->width < 0) {
return;
}
if (spr->yPos >= Video::H || spr->yPos + ptr->height < 0) {
return;
}
if (_currentLevel == kLvl_isld && ptr->spriteNum == 2) {
AndyLvlObjectData *dataPtr = (AndyLvlObjectData *)getLvlObjectDataPtr(ptr, kObjectDataTypeAndy);
spr->xPos += dataPtr->dxPos;
}
if (ptr->bitmapBits) {
spr->w = ptr->width;
spr->h = ptr->height;
spr->bitmapBits = ptr->bitmapBits;
addToSpriteList(spr);
}
}
}
int16_t Game::calcScreenMaskDy(int16_t xPos, int16_t yPos, int num) {
if (xPos < 0) {
xPos += Video::W;
num = _res->_screensGrid[num][kPosLeftScreen];
} else if (xPos >= Video::W) {
xPos -= Video::W;
num = _res->_screensGrid[num][kPosRightScreen];
}
if (num != kNoScreen) {
if (yPos < 0) {
yPos += Video::H;
num = _res->_screensGrid[num][kPosTopScreen];
} else if (yPos >= Video::H) {
yPos -= Video::H;
num = _res->_screensGrid[num][kPosBottomScreen];
}
}
uint8_t var1 = 0xFF - (yPos & 7);
if (num == kNoScreen) {
return var1;
}
int vg = screenMaskOffset(_res->_screensBasePos[num].u + xPos, _res->_screensBasePos[num].v + yPos);
int vf = screenGridOffset(xPos, yPos);
if (_screenMaskBuffer[vg - 512] & 1) {
vf -= 32;
var1 -= 8;
} else if (_screenMaskBuffer[vg] & 1) {
/* nothing to do */
} else if (_screenMaskBuffer[vg + 512] & 1) {
vf += 32;
var1 += 8;
} else if (_screenMaskBuffer[vg + 1024] & 1) {
vf += 64;
var1 += 16;
} else {
return 0;
}
int _dl = _res->findScreenGridIndex(num);
if (_dl < 0) {
return (int8_t)(var1 + 4);
}
const uint8_t *p = _res->_resLevelData0x470CTablePtrData + (xPos & 7);
return (int8_t)(var1 + p[_screenPosTable[_dl][vf] * 8]);
}
void Game::setupScreenPosTable(uint8_t num) {
const uint8_t *src = _res->_screensGrid[num];
for (int i = 0; i < 4; ++i) {
if (src[i] != kNoScreen) {
int index = _res->_resLvlScreenBackgroundDataTable[src[i]].currentMaskId;
const uint8_t *p = _res->getLvlScreenPosDataPtr(src[i] * 4 + index);
if (p) {
Video::decodeRLE(p, _screenPosTable[i], 32 * 24);
continue;
}
}
memset(_screenPosTable[i], 0, 32 * 24);
}
int index = _res->_resLvlScreenBackgroundDataTable[num].currentMaskId;
const uint8_t *p = _res->getLvlScreenPosDataPtr(num * 4 + index);
if (p) {
Video::decodeRLE(p, _screenPosTable[4], 32 * 24);
} else {
memset(_screenPosTable[4], 0, 32 * 24);
}
}
void Game::setupScreenMask(uint8_t num) {
if (num == kNoScreen) {
return;
}
int mask = _res->_resLvlScreenBackgroundDataTable[num].currentMaskId;
if (_res->_screensState[num].s3 != mask) {
debug(kDebug_GAME, "setupScreenMask num %d mask %d", num, mask);
_res->_screensState[num].s3 = mask;
const uint8_t *maskData = _res->getLvlScreenMaskDataPtr(num * 4 + mask);
if (maskData) {
Video::decodeRLE(maskData, _screenTempMaskBuffer, 32 * 24);
} else {
memset(_screenTempMaskBuffer, 0, 32 * 24);
}
uint8_t *p = _screenMaskBuffer + screenMaskOffset(_res->_screensBasePos[num].u, _res->_screensBasePos[num].v);
for (int i = 0; i < 24; ++i) {
memcpy(p, _screenTempMaskBuffer + i * 32, 32);
p += 512;
}
}
if (_res->_currentScreenResourceNum == num) {
setupScreenPosTable(num);
}
}
void Game::resetScreenMask() {
memset(_screenMaskBuffer, 0, sizeof(_screenMaskBuffer));
for (int i = 0; i < _res->_lvlHdr.screensCount; ++i) {
_res->_screensState[i].s3 = 0xFF;
setupScreenMask(i);
}
}
void Game::setScreenMaskRectHelper(int x1, int y1, int x2, int y2, int screenNum) {
if (screenNum != kNoScreen) {
int index = _res->_resLvlScreenBackgroundDataTable[screenNum].currentMaskId;
const uint8_t *p = _res->getLvlScreenMaskDataPtr(screenNum * 4 + index);
Video::decodeRLE(p, _screenTempMaskBuffer, 32 * 24);
int h = (y2 - y1 + 7) >> 3;
int w = (x2 - x1 + 7) >> 3;
const int x = x1 - _res->_screensBasePos[screenNum].u;
const int y = y1 - _res->_screensBasePos[screenNum].v;
const int u = _res->_screensBasePos[screenNum].u + Video::W;
if (x2 < u) {
++w;
}
const uint8_t *src = _screenTempMaskBuffer + screenGridOffset(x, y);
uint8_t *dst = _screenMaskBuffer + screenMaskOffset(x1, y1);
for (int i = 0; i < h; ++i) {
memcpy(dst, src, w);
src += 32;
dst += 512;
}
}
}
void Game::setScreenMaskRect(int x1, int y1, int x2, int y2, int screenNum) {
const int u = _res->_screensBasePos[screenNum].u;
const int v = _res->_screensBasePos[screenNum].v;
const int topScreenNum = _res->_screensGrid[screenNum][kPosTopScreen];
if (x1 < u || y1 < v || y2 >= v + Video::H) {
if (topScreenNum != kNoScreen) {
const int u2 = _res->_screensBasePos[topScreenNum].u;
const int v2 = _res->_screensBasePos[topScreenNum].v;
if (x1 >= u2 && y1 >= v2 && y2 < v + Video::H) {
setScreenMaskRectHelper(x1, y1, x2, v2 + Video::H, topScreenNum);
}
}
}
setScreenMaskRectHelper(x1, v, x2, y2, screenNum);
}
void Game::updateScreenMaskBuffer(int x, int y, int type) {
uint8_t *p = _screenMaskBuffer + screenMaskOffset(x, y);
switch (type) {
case 0:
p[0] &= ~8;
break;
case 1:
p[0] |= 8;
break;
case 2:
p[0] |= 8;
p[-1] = 0;
p[-2] = 0;
p[-3] = 0;
break;
case 3:
p[0] |= 8;
p[1] = 0;
p[2] = 0;
p[3] = 0;
break;
}
}
void Game::setupLvlObjectBitmap(LvlObject *ptr) {
LvlObjectData *dat = ptr->levelData0x2988;
if (!dat) {
return;
}
LvlAnimHeader *ah = (LvlAnimHeader *)(dat->animsInfoData + kLvlAnimHdrOffset) + ptr->anim;
LvlAnimSeqHeader *ash = (LvlAnimSeqHeader *)(dat->animsInfoData + ah->seqOffset) + ptr->frame;
ptr->currentSound = ash->sound;
ptr->flags0 = merge_bits(ptr->flags0, ash->flags0, 0x3FF);
ptr->flags1 = merge_bits(ptr->flags1, ash->flags1, 6);
ptr->flags1 = merge_bits(ptr->flags1, ash->flags1, 8);
ptr->currentSprite = ash->firstFrame;
ptr->bitmapBits = _res->getLvlSpriteFramePtr(dat, ash->firstFrame, &ptr->width, &ptr->height);
const int w = ptr->width - 1;
const int h = ptr->height - 1;
if (ptr->type == 8 && (ptr->spriteNum == 2 || ptr->spriteNum == 0)) {
AndyLvlObjectData *dataPtr = (AndyLvlObjectData *)getLvlObjectDataPtr(ptr, kObjectDataTypeAndy);
dataPtr->boundingBox.x1 = ptr->xPos;
dataPtr->boundingBox.y1 = ptr->yPos;
dataPtr->boundingBox.x2 = ptr->xPos + w;
dataPtr->boundingBox.y2 = ptr->yPos + h;
}
const LvlSprHotspotData *hotspot = ((LvlSprHotspotData *)dat->hotspotsData) + ash->firstFrame;
const int type = (ptr->flags1 >> 4) & 3;
for (int i = 0; i < 8; ++i) {
switch (type) {
case 0:
ptr->posTable[i].x = hotspot->pts[i].x;
ptr->posTable[i].y = hotspot->pts[i].y;
break;
case 1:
ptr->posTable[i].x = w - hotspot->pts[i].x;
ptr->posTable[i].y = hotspot->pts[i].y;
break;
case 2:
ptr->posTable[i].x = hotspot->pts[i].x;
ptr->posTable[i].y = h - hotspot->pts[i].y;
break;
case 3:
ptr->posTable[i].x = w - hotspot->pts[i].x;
ptr->posTable[i].y = h - hotspot->pts[i].y;
break;
}
}
}
void Game::randomizeInterpolatePoints(int32_t *pts, int count) {
int32_t rnd = _rnd.update();
for (int i = 0; i < count; ++i) {
const int index = _pointDstIndexTable[i];
const int c1 = pts[_pointSrcIndex1Table[index]];
const int c2 = pts[_pointSrcIndex2Table[index]];
pts[index] = (c1 + c2 + (rnd >> _pointRandomizeShiftTable[i])) / 2;
rnd *= 2;
}
}
int Game::fixPlasmaCannonPointsScreenMask(int num) {
const uint8_t _dl = ((~_plasmaCannonDirection) & 1) | 6;
int var1 = _plasmaCannonFirstIndex;
const int vf = _res->_screensBasePos[num].u;
const int ve = _res->_screensBasePos[num].v;
uint8_t _al = 0;
if (_andyObject->anim == 84) {
int yPos, xPos;
yPos = _plasmaCannonYPointsTable1[var1];
if (yPos < 0) {
yPos = 0;
}
yPos += ve;
while ((xPos = _plasmaCannonXPointsTable1[var1]) >= 0) {
xPos += vf;
_al = _screenMaskBuffer[screenMaskOffset(xPos, yPos)];
if ((_al & _dl) != 0) {
_plasmaCannonLastIndex1 = var1;
break;
}
var1 += 4;
if (var1 >= _plasmaCannonLastIndex2) {
break;
}
}
} else {
int xPos, yPos;
while ((xPos = _plasmaCannonXPointsTable1[var1]) >= 0 && (yPos = _plasmaCannonYPointsTable1[var1]) >= 0) {
yPos += ve;
xPos += vf;
_al = _screenMaskBuffer[screenMaskOffset(xPos, yPos)];
if ((_al & _dl) != 0) {
_plasmaCannonLastIndex1 = var1;
break;
}
var1 += 4;
if (var1 >= _plasmaCannonLastIndex2) {
break;
}
}
}
return _al;
}
void Game::setupPlasmaCannonPointsHelper() {
if (_plasmaCannonPointsSetupCounter == 0) {
randomizeInterpolatePoints(_plasmaCannonPosX, 64);
randomizeInterpolatePoints(_plasmaCannonPosY, 64);
if (_andyObject->anim == 84) {
for (int i = 0; i <= 496 / 4; i += 2) {
_plasmaCannonXPointsTable2[2 + i] = (_plasmaCannonPosX[4 + i] - _plasmaCannonXPointsTable1[4 + i]) / 2;
_plasmaCannonYPointsTable2[2 + i] = (_plasmaCannonPosY[4 + i] - _plasmaCannonYPointsTable1[4 + i]) / 8;
}
} else {
for (int i = 0; i <= 496 / 4; i += 2) {
_plasmaCannonXPointsTable2[2 + i] = (_plasmaCannonPosX[4 + i] - _plasmaCannonXPointsTable1[4 + i]) / 2;
_plasmaCannonYPointsTable2[2 + i] = (_plasmaCannonPosY[4 + i] - _plasmaCannonYPointsTable1[4 + i]) / 2;
}
}
for (int i = 0; i <= 504 / 4; i += 2) {
_plasmaCannonXPointsTable1[2 + i] = _plasmaCannonPosX[2 + i];
_plasmaCannonYPointsTable1[2 + i] = _plasmaCannonPosY[2 + i];
}
} else {
for (int i = 0; i <= 496 / 4; i += 2) {
_plasmaCannonXPointsTable1[4 + i] += _plasmaCannonXPointsTable2[2 + i];
_plasmaCannonYPointsTable1[4 + i] += _plasmaCannonYPointsTable2[2 + i];
}
}
++_plasmaCannonPointsSetupCounter;
if (_plasmaCannonPointsSetupCounter >= 2) {
_plasmaCannonPointsSetupCounter = 0;
}
_plasmaCannonLastIndex2 = 128;
if (_plasmaCannonDirection == 0) {
_plasmaCannonLastIndex1 = _plasmaCannonPointsMask = 0;
_plasmaCannonFirstIndex = 128;
} else {
_plasmaCannonFirstIndex = 0;
_plasmaCannonPointsMask = fixPlasmaCannonPointsScreenMask(_res->_currentScreenResourceNum);
}
}
void Game::destroyLvlObjectPlasmaExplosion(LvlObject *o) {
AndyLvlObjectData *l = (AndyLvlObjectData *)getLvlObjectDataPtr(o, kObjectDataTypeAndy);
if (l->shootLvlObject) {
l->shootLvlObject = 0;
assert(_plasmaExplosionObject);
LvlObject *ptr = _plasmaExplosionObject->nextPtr;
removeLvlObjectFromList(&_plasmaExplosionObject, ptr);
destroyLvlObject(ptr);
ptr = _plasmaExplosionObject;
removeLvlObjectFromList(&_plasmaExplosionObject, ptr);
destroyLvlObject(ptr);
}
}
void Game::shuffleArray(uint8_t *p, int count) {
for (int i = 0; i < count * 2; ++i) {
const int index1 = _rnd.update() % count;
const int index2 = _rnd.update() % count;
SWAP(p[index1], p[index2]);
}
}
void Game::destroyLvlObject(LvlObject *o) {
assert(o);
if (o->type == 8) {
_res->decLvlSpriteDataRefCounter(o);
o->nextPtr = _declaredLvlObjectsNextPtr;
--_declaredLvlObjectsListCount;
_declaredLvlObjectsNextPtr = o;
switch (o->spriteNum) {
case 0:
case 2:
o->dataPtr = 0;
break;
case 3:
case 7:
if (o->dataPtr) {
clearShootLvlObjectData(o);
}
break;
}
}
if (o->sssObject) {
removeSound(o);
o->sssObject = 0;
}
o->bitmapBits = 0;
}
void Game::setupPlasmaCannonPoints(LvlObject *ptr) {
_plasmaCannonDirection = 0;
if ((ptr->flags0 & 0x1F) == 4) {
if ((ptr->actionKeyMask & 4) == 0) { // not using plasma cannon
destroyLvlObjectPlasmaExplosion(ptr);
} else {
_plasmaCannonPosX[0] = _plasmaCannonPosX[128] = ptr->xPos + ptr->posTable[6].x;
_plasmaCannonPosY[0] = _plasmaCannonPosY[128] = ptr->yPos + ptr->posTable[6].y;
const int num = ((ptr->flags0 >> 5) & 7) - 3;
switch (num) {
case 0:
_plasmaCannonPosY[128] -= Video::H - 16;
_plasmaCannonDirection = 3;
break;
case 1:
_plasmaCannonPosY[128] += Video::H - 16;
_plasmaCannonDirection = 6;
break;
case 3:
_plasmaCannonPosY[128] -= Video::H - 16;
_plasmaCannonDirection = 1;
break;
case 4:
_plasmaCannonPosY[128] += Video::H - 16;
_plasmaCannonDirection = 4;
break;
default:
_plasmaCannonDirection = 2;
break;
}
if (ptr->flags1 & 0x10) {
if (_plasmaCannonDirection != 1) {
_plasmaCannonDirection = (_plasmaCannonDirection & ~2) | 8;
_plasmaCannonPosX[128] -= Video::W + 8;
}
} else {
if (_plasmaCannonDirection != 1) {
_plasmaCannonPosX[128] += Video::W + 8;
}
}
if (_plasmaCannonPrevDirection != _plasmaCannonDirection) {
_plasmaCannonXPointsTable1[0] = _plasmaCannonPosX[0];
_plasmaCannonXPointsTable1[128] = _plasmaCannonPosX[128];
randomizeInterpolatePoints(_plasmaCannonXPointsTable1, 64);
_plasmaCannonYPointsTable1[0] = _plasmaCannonPosY[0];
_plasmaCannonYPointsTable1[128] = _plasmaCannonPosY[128];
randomizeInterpolatePoints(_plasmaCannonYPointsTable1, 64);
_plasmaCannonPrevDirection = _plasmaCannonDirection;
}
}
}
if (_plasmaCannonPrevDirection != 0) {
setupPlasmaCannonPointsHelper();
if (_plasmaCannonFirstIndex >= _plasmaCannonLastIndex2) {
_plasmaCannonPrevDirection = 0;
_plasmaCannonLastIndex2 = 16;
}
}
}
int Game::testPlasmaCannonPointsDirection(int x1, int y1, int x2, int y2) {
int index1 = _plasmaCannonFirstIndex;
int vg = _plasmaCannonPosX[index1];
int ve = _plasmaCannonPosY[index1];
int index2 = _plasmaCannonLastIndex1;
if (index2 == 0) {
index2 = _plasmaCannonLastIndex2;
}
int va = _plasmaCannonXPointsTable1[index2];
int vf = _plasmaCannonYPointsTable1[index2];
if (vg > va) {
if (ve > vf) {
if (x1 > vg || x2 < va || y1 > ve || y2 < vf) {
return 0;
}
index1 += 4;
do {
va = _plasmaCannonXPointsTable1[index1];
vf = _plasmaCannonYPointsTable1[index1];
if (x1 <= vg && x2 >= va && y1 <= ve && y2 >= vf) {
goto endDir;
}
vg = va;
ve = vf;
index1 += 4;
} while (index1 < index2);
return 0;
} else {
if (x1 > vg || x2 < va || y1 > vf || y2 < ve) {
return 0;
}
index1 += 4;
do {
va = _plasmaCannonXPointsTable1[index1];
vf = _plasmaCannonYPointsTable1[index1];
if (x1 <= vg && x2 >= va && y1 <= vf && y2 >= ve) {
goto endDir;
}
vg = va;
ve = vf;
index1 += 4;
} while (index1 < index2);
return 0;
}
} else {
if (ve > vf) {
if (x1 > va || x2 < vg || y1 > ve || y2 < vf) {
return 0;
}
index1 += 4;
do {
va = _plasmaCannonXPointsTable1[index1];
vf = _plasmaCannonYPointsTable1[index1];
if (x1 <= va && x2 >= vg && y1 <= ve && y2 >= vf) {
goto endDir;
}
vg = va;
ve = vf;
index1 += 4;
} while (index1 < index2);
return 0;
} else {
if (x1 > va || x2 < vg || y1 > vf || y2 < ve) {
return 0;
}
index1 += 4;
do {
va = _plasmaCannonXPointsTable1[index1];
vf = _plasmaCannonYPointsTable1[index1];
if (x1 <= va && x2 >= vg && y1 <= vf && y2 >= ve) {
goto endDir;
}
vg = va;
ve = vf;
index1 += 4;
} while (index1 < index2);
return 0;
}
}
endDir:
_plasmaCannonLastIndex1 = index1;
_plasmaCannonPointsMask = 0;
return 1;
}
void Game::preloadLevelScreenData(uint8_t num, uint8_t prev) {
assert(num != kNoScreen);
if (!_res->isLvlBackgroundDataLoaded(num)) {
_res->loadLvlScreenBackgroundData(num);
}
if (num < _res->_sssPreloadInfosData.count) {
const SssPreloadInfo *preloadInfo = &_res->_sssPreloadInfosData[num];
for (unsigned int i = 0; i < preloadInfo->count; ++i) {
const SssPreloadInfoData *preloadData = &preloadInfo->data[i];
if (preloadData->screenNum == prev) {
_res->preloadSssPcmList(preloadData);
break;
}
}
}
}
void Game::setLvlObjectPosRelativeToObject(LvlObject *ptr1, int num1, LvlObject *ptr2, int num2) {
ptr1->xPos = ptr2->posTable[num2].x - ptr1->posTable[num1].x + ptr2->xPos;
ptr1->yPos = ptr2->posTable[num2].y - ptr1->posTable[num1].y + ptr2->yPos;
}
void Game::setLvlObjectPosRelativeToPoint(LvlObject *ptr, int num, int x, int y) {
assert(num >= 0 && num < 8);
ptr->xPos = x - ptr->posTable[num].x;
ptr->yPos = y - ptr->posTable[num].y;
}
void Game::clearLvlObjectsList0() {
LvlObject *ptr = _lvlObjectsList0;
while (ptr) {
LvlObject *next = ptr->nextPtr;
destroyLvlObject(ptr);
ptr = next;
}
_lvlObjectsList0 = 0;
}
void Game::clearLvlObjectsList1() {
if (!_lvlObjectsList1) {
return;
}
for (int i = 0; i < kMaxMonsterObjects1; ++i) {
mstMonster1ResetData(&_monsterObjects1Table[i]);
}
for (int i = 0; i < kMaxMonsterObjects2; ++i) {
mstMonster2ResetData(&_monsterObjects2Table[i]);
}
LvlObject *ptr = _lvlObjectsList1;
while (ptr) {
LvlObject *next = ptr->nextPtr;
destroyLvlObject(ptr);
ptr = next;
}
_lvlObjectsList1 = 0;
}
void Game::clearLvlObjectsList2() {
LvlObject *ptr = _lvlObjectsList2;
while (ptr) {
LvlObject *next = ptr->nextPtr;
destroyLvlObject(ptr);
ptr = next;
}
_lvlObjectsList2 = 0;
}
void Game::clearLvlObjectsList3() {
LvlObject *ptr = _lvlObjectsList3;
while (ptr != 0) {
LvlObject *next = ptr->nextPtr;
destroyLvlObject(ptr);
ptr = next;
}
_lvlObjectsList3 = 0;
}
LvlObject *Game::addLvlObjectToList0(int num) {
LvlObject *ptr = declareLvlObject(8, num);
if (ptr) {
ptr->nextPtr = _lvlObjectsList0;
_lvlObjectsList0 = ptr;
}
return ptr;