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scummvm-cursorfix/engines/scumm/he/moonbase/moonbase_fow.cpp
2026-02-02 04:50:13 +01:00

441 lines
11 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "common/config-manager.h"
#include "common/formats/winexe_pe.h"
#include "scumm/he/intern_he.h"
#include "scumm/he/moonbase/moonbase.h"
namespace Scumm {
#define FOW_ANIM_FRAME_COUNT 38
void Moonbase::initFOW() {
_fowSentinelImage = -1;
_fowSentinelState = -1;
_fowSentinelConditionBits = 0;
_fowFrameBaseNumber = 0;
_fowAnimationFrames = 1;
_fowCurrentFOWFrame = 0;
_fowTileW = 0;
_fowTileH = 0;
_fowImage = nullptr;
_fowClipX1 = 0;
_fowClipY1 = 0;
_fowClipX2 = 0;
_fowClipY2 = 0;
_fowDrawX = 0;
_fowDrawY = 0;
_fowVtx1 = 0;
_fowVty1 = 0;
_fowMvx = 0;
_fowMvy = 0;
_fowVw = 0;
_fowVh = 0;
_fowBlackMode = true;
memset(_fowRenderTable, 0, sizeof(_fowRenderTable));
}
void Moonbase::releaseFOWResources() {
if (_fowImage) {
free(_fowImage);
_fowImage = nullptr;
}
}
bool Moonbase::setFOWImage(int image) {
releaseFOWResources();
if (!_fowImage) {
Common::String fowImageFilename(ConfMan.get("MOONX_FOWImageFilename").c_str());
#if 0 // TODO
if (!fowImageFilename.empty()) {
void *wiz = loadWizFromFilename(fowImageFilename);
if (wiz) {
captureFOWImageFromLocation(wiz, file.size());
free(wiz);
}
}
#endif
if (!_fowImage && image < 0) {
int resId;
// PIECES BUBBLES CIRCLES SIMPLE* WEDGEY BUBBLE2
// WEDGE2 SPIKEY ANGLES SMOOTHED WUZZY SYS7-BEVELED
if (image >= -12 && image <= -1)
resId = 210 - image; // 211-222 range
else
resId = 214; // default, SIMPLE
if (_fileName.empty()) { // We are running for the first time
_fileName = _vm->generateFilename(-3);
if (!_exe->loadFromEXE(_fileName))
error("Cannot open file %s", _fileName.toString(Common::Path::kNativeSeparator).c_str());
}
Common::SeekableReadStream *stream = _exe->getResource(Common::kWinRCData, resId);
if (stream->size()) {
_fowImage = (uint8 *)malloc(stream->size());
stream->read(_fowImage, stream->size());
}
delete stream;
}
if (!_fowImage && image > 0) {
int sz = _vm->getResourceSize(rtImage, image);
_fowImage = (uint8 *)malloc(sz);
// We have to copy it, otherwise the resource manager
// will kill it earlier or later. Matches original.
memcpy(_fowImage, _vm->getResourceAddress(rtImage, image), sz);
}
if (!_fowImage)
return false;
}
int nStates = _vm->_wiz->getWizImageStates(_fowImage);
if (nStates > FOW_ANIM_FRAME_COUNT) {
releaseFOWResources();
return false;
}
_fowAnimationFrames = (nStates + FOW_ANIM_FRAME_COUNT - 1) / FOW_ANIM_FRAME_COUNT;
_vm->_wiz->getWizImageDim(_fowImage, (nStates - 1), _fowTileW, _fowTileH);
bool sizeIndicatorWasBlack = true;
int32 hitTestValue = 0;
int32 pixelValue = 0;
_vm->_wiz->moonbaseLayeredWizHitTest(
&hitTestValue, &pixelValue, _fowImage, (nStates - 1), 0, 0, 0, 0);
sizeIndicatorWasBlack = (pixelValue == 0);
if (ConfMan.hasKey("EnableFOWRects"))
_fowBlackMode = (ConfMan.getInt("EnableFOWRects") == 1);
else
_fowBlackMode = sizeIndicatorWasBlack;
return true;
}
enum FOWElement {
FOW_EMPTY = 0,
FOW_SOLID = 1,
FF_L = 0x01,
FF_R = 0x02,
FF_T = 0x04,
FF_B = 0x08,
FF_T_L = 0x10,
FF_T_R = 0x20,
FF_B_L = 0x40,
FF_B_R = 0x80,
FF_Q_A = (FF_L | FF_T | FF_T_L),
FF_Q_B = (FF_R | FF_T | FF_T_R),
FF_Q_C = (FF_L | FF_B | FF_B_L),
FF_Q_D = (FF_R | FF_B | FF_B_R)
};
int Moonbase::readFOWVisibilityArray(int array, int y, int x) {
if (readFromArray(array, x, y) > 0)
return FOW_EMPTY;
return FOW_SOLID;
}
void Moonbase::setFOWInfo(int fowInfoArray, int downDim, int acrossDim, int viewX, int viewY, int clipX1,
int clipY1, int clipX2, int clipY2, int technique, int nFrame) {
if (!_fowImage)
return;
memset(_fowRenderTable, 0, sizeof(_fowRenderTable));
_fowDrawX = clipX1;
_fowDrawY = clipY1;
_fowClipX1 = clipX1;
_fowClipY1 = clipY1;
_fowClipX2 = clipX2;
_fowClipY2 = clipY2;
// Figure out the number of tiles are involved
int view_W = (clipX2 - clipX1) + 1;
int view_H = (clipY2 - clipY1) + 1;
int tw = _fowTileW;
int th = _fowTileH;
int dw = acrossDim;
int dh = downDim;
int dlw = dw * tw;
int dlh = dh * th;
_fowMvx = (0 <= viewX) ? (viewX % dlw) : (dlw - (-viewX % dlw));
_fowMvy = (0 <= viewY) ? (viewY % dlh) : (dlh - (-viewY % dlh));
_fowVtx1 = _fowMvx / tw;
_fowVty1 = _fowMvy / th;
_fowVw = (((_fowMvx + view_W + tw - 1) / tw) - _fowVtx1) + 1;
_fowVh = (((_fowMvy + view_H + th - 1) / th) - _fowVty1) + 1;
// Build the connectivity table
int t = (_fowVty1 - 1); if (t >= dh) { t = 0; } else if (t < 0) { t = (dh - 1); }
int m = (_fowVty1 + 0); if (m >= dh) { m = 0; } else if (m < 0) { m = (dh - 1); }
int b = (_fowVty1 + 1); if (b >= dh) { b = 0; } else if (b < 0) { b = (dh - 1); }
int il = (_fowVtx1 - 1); if (il >= dh) { il = 0; } else if (il < 0) { il = (dw - 1); }
int ic = (_fowVtx1 + 0); if (ic >= dh) { ic = 0; } else if (ic < 0) { ic = (dw - 1); }
int ir = (_fowVtx1 + 1); if (ir >= dh) { ir = 0; } else if (ir < 0) { ir = (dw - 1); }
int dataOffset = (_fowVw * 3);
int dataOffset2 = (dataOffset * 2);
int32 *pOutterRenderTableA = _fowRenderTable;
int32 *pOutterRenderTableB = pOutterRenderTableA + dataOffset;
for (int ay = 0; ay < _fowVh; ay++) {
int l = il;
int c = ic;
int r = ir;
int32 *pRenderTableA = pOutterRenderTableA;
int32 *pRenderTableB = pOutterRenderTableB;
pOutterRenderTableA += dataOffset2;
pOutterRenderTableB += dataOffset2;
for (int ax = 0; ax < _fowVw; ax++) {
int visibility = readFOWVisibilityArray(fowInfoArray, m, c);
if (visibility == FOW_EMPTY) {
uint32 bits = 0;
if (readFOWVisibilityArray(fowInfoArray, t, l) != 0) bits |= FF_T_L;
if (readFOWVisibilityArray(fowInfoArray, t, c) != 0) bits |= FF_T;
if (readFOWVisibilityArray(fowInfoArray, t, r) != 0) bits |= FF_T_R;
if (readFOWVisibilityArray(fowInfoArray, m, l) != 0) bits |= FF_L;
if (readFOWVisibilityArray(fowInfoArray, m, r) != 0) bits |= FF_R;
if (readFOWVisibilityArray(fowInfoArray, b, l) != 0) bits |= FF_B_L;
if (readFOWVisibilityArray(fowInfoArray, b, c) != 0) bits |= FF_B;
if (readFOWVisibilityArray(fowInfoArray, b, r) != 0) bits |= FF_B_R;
if (bits) {
*pRenderTableA++ = 1;
*pRenderTableB++ = 1;
// Quadrant (A)
if (bits & FF_Q_A) {
*pRenderTableA++ = (
((FF_L & bits) ? 1 : 0) |
((FF_T & bits) ? 2 : 0) |
((FF_T_L & bits) ? 4 : 0)
) + 0;
} else {
*pRenderTableA++ = 0;
}
// Quadrant (B)
if (bits & FF_Q_B) {
*pRenderTableA++ = (
((FF_R & bits) ? 1 : 0) |
((FF_T & bits) ? 2 : 0) |
((FF_T_R & bits) ? 4 : 0)
) + 8;
} else {
*pRenderTableA++ = 0;
}
// Quadrant (C)
if (bits & FF_Q_C) {
*pRenderTableB++ = (
((FF_L & bits) ? 1 : 0) |
((FF_B & bits) ? 2 : 0) |
((FF_B_L & bits) ? 4 : 0)
) + 16;
} else {
*pRenderTableB++ = 0;
}
// Quadrant (D)
if (bits & FF_Q_D) {
*pRenderTableB++ = (
((FF_R & bits) ? 1 : 0) |
((FF_B & bits) ? 2 : 0) |
((FF_B_R & bits) ? 4 : 0)
) + 24;
} else {
*pRenderTableB++ = 0;
}
} else {
*pRenderTableA++ = 0;
*pRenderTableB++ = 0;
}
} else {
if (_fowBlackMode) {
*pRenderTableA++ = 2;
*pRenderTableB++ = 2;
} else {
*pRenderTableA++ = 1;
*pRenderTableA++ = 33;
*pRenderTableA++ = 34;
*pRenderTableB++ = 1;
*pRenderTableB++ = 35;
*pRenderTableB++ = 36;
}
}
if (++l >= dw) { l = 0; }
if (++c >= dw) { c = 0; }
if (++r >= dw) { r = 0; }
}
if (++t >= dh) { t = 0; }
if (++m >= dh) { m = 0; }
if (++b >= dh) { b = 0; }
}
_fowCurrentFOWFrame = (nFrame >= 0) ? (nFrame % _fowAnimationFrames) : ((-nFrame) % _fowAnimationFrames);
_fowFrameBaseNumber = (_fowCurrentFOWFrame * FOW_ANIM_FRAME_COUNT);
}
void Moonbase::renderFOWState(WizMultiTypeBitmap *destSurface,int x, int y, int state) {
int32 spotx, spoty;
_vm->_wiz->getWizImageSpot(_fowImage, state, spotx, spoty);
_vm->_wiz->drawMoonbaseLayeredWiz(
destSurface->data,
destSurface->width, destSurface->height,
destSurface->stride, destSurface->format, destSurface->bpp,
_fowImage, x - spotx, y - spoty, state,
_fowClipX1, _fowClipY1, _fowClipX2, _fowClipY2,
0, 0, nullptr, nullptr);
}
static void blackRect_16bpp(WizMultiTypeBitmap *destSurface, int x1, int y1, int x2, int y2) {
byte *dst = destSurface->data + (destSurface->stride * y1) + (x1 * sizeof(WizRawPixel16));
int h = (y2 - y1) + 1;
int writeBytes = ((x2 - x1) + 1) * sizeof(WizRawPixel16);
while (--h >= 0) {
memset(dst, 0, writeBytes);
dst += destSurface->stride;
}
}
void Moonbase::renderFOW(WizMultiTypeBitmap *destSurface) {
if (!_fowImage)
return;
const int32 *outerRenderTable = _fowRenderTable;
int ixPos = ((_fowVtx1 * _fowTileW) - _fowMvx) + _fowDrawX;
int yPos = ((_fowVty1 * _fowTileH) - _fowMvy) + _fowDrawY;
int dataOffset = _fowVw * 3;
int halfTileHeight = _fowTileH / 2;
int cx2 = MIN<int>(_fowClipX2, (int)(destSurface->width - 1));
int cy2 = MIN<int>(_fowClipY2, (int)(destSurface->height - 1));
for (int ry = 0; ry < _fowVh; ry++) {
int realYPos = yPos;
for (int i = 0; i < 2; i++) {
const int32 *renderTable = outerRenderTable;
outerRenderTable += dataOffset;
int xPos = ixPos;
for (int rx = 0; rx < _fowVw; rx++) {
int state = *renderTable++;
if (state != 0) {
if (state == 2) {
int countLeft = (_fowVw - rx);
int count = 0;
for (; count < countLeft; count++) {
if (*(renderTable + count) != 2)
break;
renderTable++;
rx++;
}
count++;
int x1 = xPos;
int y1 = realYPos;
xPos += _fowTileW * count;
int x2 = (xPos - 1);
int y2 = ((y1 + halfTileHeight) - 1);
x1 = MAX(0, x1);
y1 = MAX(0, y1);
x2 = MIN(x2, cx2);
y2 = MIN(y2, cy2);
if ((x2 >= x1) && (y2 >= y1) && (x1 <= _fowClipX2) && (y1 <= _fowClipY2))
blackRect_16bpp(destSurface, x1, y1, x2, y2);
} else {
int subState;
if ((subState = *renderTable++) != 0)
renderFOWState(destSurface, xPos, yPos, (subState + _fowFrameBaseNumber));
if ((subState = *renderTable++) != 0)
renderFOWState(destSurface, xPos, yPos, (subState + _fowFrameBaseNumber));
xPos += _fowTileW;
}
} else {
xPos += _fowTileW;
}
}
realYPos += halfTileHeight;
}
yPos += _fowTileH;
}
}
} // End of namespace Scumm