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2026-02-02 04:50:13 +01:00

244 lines
8.1 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/file.h"
#include "common/memstream.h"
#include "freescape/freescape.h"
#include "freescape/games/driller/driller.h"
#include "freescape/language/8bitDetokeniser.h"
namespace Freescape {
void DrillerEngine::initCPC() {
_viewArea = Common::Rect(36, 16, 284, 117);
}
byte kCPCPaletteTitleData[4][3] = {
{0x00, 0x00, 0x00},
{0x00, 0x80, 0xff},
{0xff, 0x00, 0x00},
{0xff, 0xff, 0x00},
};
byte kCPCPaletteBorderData[4][3] = {
{0x00, 0x00, 0x00},
{0xff, 0x80, 0x00},
{0x80, 0xff, 0xff},
{0x00, 0x80, 0x00},
};
byte getCPCPixelMode1(byte cpc_byte, int index) {
if (index == 0)
return ((cpc_byte & 0x08) >> 2) | ((cpc_byte & 0x80) >> 7);
else if (index == 1)
return ((cpc_byte & 0x04) >> 1) | ((cpc_byte & 0x40) >> 6);
else if (index == 2)
return (cpc_byte & 0x02) | ((cpc_byte & 0x20) >> 5);
else if (index == 3)
return ((cpc_byte & 0x01) << 1) | ((cpc_byte & 0x10) >> 4);
else
error("Invalid index %d requested", index);
}
byte getCPCPixelMode0(byte cpc_byte, int index) {
if (index == 0) {
// Extract Pixel 0 from the byte
return ((cpc_byte & 0x02) >> 1) | // Bit 1 -> Bit 3 (MSB)
((cpc_byte & 0x20) >> 4) | // Bit 5 -> Bit 2
((cpc_byte & 0x08) >> 1) | // Bit 3 -> Bit 1
((cpc_byte & 0x80) >> 7); // Bit 7 -> Bit 0 (LSB)
}
else if (index == 2) {
// Extract Pixel 1 from the byte
return ((cpc_byte & 0x01) << 3) | // Bit 0 -> Bit 3 (MSB)
((cpc_byte & 0x10) >> 2) | // Bit 4 -> Bit 2
((cpc_byte & 0x04) >> 1) | // Bit 2 -> Bit 1
((cpc_byte & 0x40) >> 6); // Bit 6 -> Bit 0 (LSB)
}
else {
error("Invalid index %d requested", index);
}
}
byte getCPCPixel(byte cpc_byte, int index, bool mode1) {
if (mode1)
return getCPCPixelMode1(cpc_byte, index);
else
return getCPCPixelMode0(cpc_byte, index);
}
Graphics::ManagedSurface *readCPCImage(Common::SeekableReadStream *file, bool mode1) {
Graphics::ManagedSurface *surface = new Graphics::ManagedSurface();
surface->create(320, 200, Graphics::PixelFormat::createFormatCLUT8());
surface->fillRect(Common::Rect(0, 0, 320, 200), 0);
int x, y;
file->seek(0x80);
for (int block = 0; block < 8; block++) {
for (int line = 0; line < 25; line++) {
for (int offset = 0; offset < 320 / 4; offset++) {
byte cpc_byte = file->readByte(); // Get CPC byte
// Process first pixel
int pixel_0 = getCPCPixel(cpc_byte, 0, mode1); // %Aa
y = line * 8 + block ; // Coord Y for the pixel
x = 4 * offset + 0; // Coord X for the pixel
surface->setPixel(x, y, pixel_0);
// Process second pixel
y = line * 8 + block ; // Coord Y for the pixel
x = 4 * offset + 1; // Coord X for the pixel
if (mode1) {
int pixel_1 = getCPCPixel(cpc_byte, 1, mode1); // %Bb
surface->setPixel(x, y, pixel_1);
} else
surface->setPixel(x, y, pixel_0);
// Process third pixel
int pixel_2 = getCPCPixel(cpc_byte, 2, mode1); // %Cc
y = line * 8 + block ; // Coord Y for the pixel
x = 4 * offset + 2; // Coord X for the pixel
surface->setPixel(x, y, pixel_2);
// Process fourth pixel
y = line * 8 + block ; // Coord Y for the pixel
x = 4 * offset + 3; // Coord X for the pixel
if (mode1) {
int pixel_3 = getCPCPixel(cpc_byte, 3, mode1); // %Dd
surface->setPixel(x, y, pixel_3);
} else
surface->setPixel(x, y, pixel_2);
}
}
// We should skip the next 48 bytes, because they are padding the block to be 2048 bytes
file->seek(48, SEEK_CUR);
}
return surface;
}
void DrillerEngine::loadAssetsCPCFullGame() {
Common::File file;
file.open("DSCN1.BIN");
if (!file.isOpen())
error("Failed to open DSCN1.BIN");
_title = readCPCImage(&file, true);
_title->setPalette((byte*)&kCPCPaletteTitleData, 0, 4);
file.close();
file.open("DSCN2.BIN");
if (!file.isOpen())
error("Failed to open DSCN2.BIN");
_border = readCPCImage(&file, true);
_border->setPalette((byte*)&kCPCPaletteBorderData, 0, 4);
file.close();
file.open("DRILL.BIN");
if (!file.isOpen())
error("Failed to open DRILL.BIN");
loadMessagesFixedSize(&file, 0x214c, 14, 20);
loadFonts(&file, 0x5b69);
loadGlobalObjects(&file, 0x1d07, 8);
load8bitBinary(&file, 0x5ccb, 16);
}
void DrillerEngine::drawCPCUI(Graphics::Surface *surface) {
uint32 color = _currentArea->_underFireBackgroundColor;
uint8 r, g, b;
_gfx->readFromPalette(color, r, g, b);
uint32 front = _gfx->_texturePixelFormat.ARGBToColor(0xFF, r, g, b);
color = _currentArea->_usualBackgroundColor;
if (_gfx->_colorRemaps && _gfx->_colorRemaps->contains(color)) {
color = (*_gfx->_colorRemaps)[color];
}
_gfx->readFromPalette(color, r, g, b);
uint32 back = _gfx->_texturePixelFormat.ARGBToColor(0xFF, r, g, b);
int score = _gameStateVars[k8bitVariableScore];
drawStringInSurface(_currentArea->_name, 200, 185, front, back, surface);
drawStringInSurface(Common::String::format("%04d", int(2 * _position.x())), 151, 145, front, back, surface);
drawStringInSurface(Common::String::format("%04d", int(2 * _position.z())), 151, 153, front, back, surface);
drawStringInSurface(Common::String::format("%04d", int(2 * _position.y())), 151, 161, front, back, surface);
if (_playerHeightNumber >= 0)
drawStringInSurface(Common::String::format("%d", _playerHeightNumber), 54, 161, front, back, surface);
else
drawStringInSurface(Common::String::format("%s", "J"), 54, 161, front, back, surface);
drawStringInSurface(Common::String::format("%02d", int(_angleRotations[_angleRotationIndex])), 47, 145, front, back, surface);
drawStringInSurface(Common::String::format("%3d", _playerSteps[_playerStepIndex]), 44, 153, front, back, surface);
drawStringInSurface(Common::String::format("%07d", score), 239, 129, front, back, surface);
int seconds, minutes, hours;
getTimeFromCountdown(seconds, minutes, hours);
drawStringInSurface(Common::String::format("%02d", hours), 209, 8, front, back, surface);
drawStringInSurface(Common::String::format("%02d", minutes), 232, 8, front, back, surface);
drawStringInSurface(Common::String::format("%02d", seconds), 255, 8, front, back, surface);
Common::String message;
int deadline;
getLatestMessages(message, deadline);
if (deadline <= _countdown) {
drawStringInSurface(message, 191, 177, back, front, surface);
_temporaryMessages.push_back(message);
_temporaryMessageDeadlines.push_back(deadline);
} else if (_messagesList.size() > 0) {
if (_currentArea->_gasPocketRadius == 0)
message = _messagesList[2];
else if (_drillStatusByArea[_currentArea->getAreaID()])
message = _messagesList[0];
else
message = _messagesList[1];
drawStringInSurface(message, 191, 177, front, back, surface);
}
int energy = _gameStateVars[k8bitVariableEnergy];
int shield = _gameStateVars[k8bitVariableShield];
if (energy >= 0) {
Common::Rect backBar(25, 184, 89 - energy, 191);
surface->fillRect(backBar, back);
Common::Rect energyBar(88 - energy, 184, 88, 191);
surface->fillRect(energyBar, front);
}
if (shield >= 0) {
Common::Rect backBar(25, 177, 89 - shield, 183);
surface->fillRect(backBar, back);
Common::Rect shieldBar(88 - shield, 177, 88, 183);
surface->fillRect(shieldBar, front);
}
drawCompass(surface, 87, 156, _yaw - 30, 10, 75, front);
drawCompass(surface, 230, 156, _pitch - 30, 10, 60, front);
}
} // End of namespace Freescape