scummvm/engines/dragons/bag.cpp
2021-12-26 18:48:43 +01:00

101 lines
2.7 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/memstream.h"
#include "dragons/bigfile.h"
#include "dragons/screen.h"
#include "dragons/bag.h"
#include "dragons/background.h"
namespace Dragons {
#define TILEMAP_WIDTH 10
#define TILEMAP_HEIGHT 25
Bag::Bag(BigfileArchive *bigFileArchive, Screen *screen): _screen(screen) {
_surface = nullptr;
_position.x = 0;
_position.y = 0;
load(bigFileArchive);
}
Bag::~Bag() {
_surface->free();
delete _surface;
}
void Bag::updatePosition(Common::Point newPos) {
_position = newPos;
}
void Bag::draw() {
_screen->copyRectToSurface(*_surface, _position.x, _position.y, Common::Rect(_surface->w, _surface->h));
}
void Bag::load(BigfileArchive *bigFileArchive) {
byte pal[512];
byte tilemap[0x1f4];
byte *tiles;
uint32 size;
byte *scrData = bigFileArchive->load("bag.scr", size);
Common::MemoryReadStream stream(scrData, size, DisposeAfterUse::YES);
stream.seek(0x4);
stream.read(pal, 512);
pal[0] = 0x0;
pal[1] = 0x0;
for (int i = 1; i < 0x100; i++) {
uint c = READ_LE_INT16(&pal[i * 2]);
if (c == 0) {
c = 0x8000;
} else {
//c = (uint16)(((uint)c & 0x1f) << 10) | (uint16)(((uint)c & 0x7c00) >> 10) | c & 0x3e0;
}
WRITE_SCREEN(&pal[i * 2], c);
}
stream.seek(0x308);
stream.read(tilemap, 0x1f4);
stream.seek(0xadc);
size = stream.readUint32LE();
tiles = (byte *)malloc(size);
stream.read(tiles, size);
_surface = new Graphics::Surface();
Graphics::PixelFormat pixelFormat16(2, 5, 5, 5, 1, 10, 5, 0, 15); //TODO move this to a better location.
_surface->create(320, 200, pixelFormat16);
for (int y = 0; y < TILEMAP_HEIGHT; y++) {
for (int x = 0; x < TILEMAP_WIDTH; x++) {
uint16 idx = READ_LE_UINT16(&tilemap[(y * TILEMAP_WIDTH + x) * 2]);
//debug("tileIdx: %d", idx);
drawTileToSurface(_surface, pal, tiles + idx * 0x100, x * 32, y * 8);
}
}
free(tiles);
}
} // End of namespace Dragons