tibia-client/src/otclient/spritemanager.cpp

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/*
* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "spritemanager.h"
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#include "game.h"
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#include <framework/core/resourcemanager.h>
#include <framework/core/filestream.h>
#include <framework/graphics/image.h>
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SpriteManager g_sprites;
SpriteManager::SpriteManager()
{
m_spritesCount = 0;
m_signature = 0;
}
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void SpriteManager::termiante()
{
unload();
}
bool SpriteManager::loadSpr(const std::string& file)
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{
try {
m_spritesFile = g_resources.openFile(file);
if(!m_spritesFile)
return false;
// cache file buffer to avoid lags from hard drive
m_spritesFile->cache();
m_signature = m_spritesFile->getU32();
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m_spritesCount = g_game.getFeature(Otc::GameSpritesU32) ? m_spritesFile->getU32() : m_spritesFile->getU16();
m_spritesOffset = m_spritesFile->tell();
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m_loaded = true;
return true;
} catch(stdext::exception& e) {
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g_logger.error(stdext::format("Failed to load sprites from '%s': %s", file, e.what()));
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return false;
}
}
void SpriteManager::unload()
{
m_spritesCount = 0;
m_signature = 0;
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m_spritesFile = nullptr;
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}
ImagePtr SpriteManager::getSpriteImage(int id)
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{
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try {
enum {
SPRITE_SIZE = 32,
SPRITE_DATA_SIZE = SPRITE_SIZE*SPRITE_SIZE*4
};
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if(id == 0 || !m_spritesFile)
return nullptr;
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m_spritesFile->seek(((id-1) * 4) + m_spritesOffset);
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uint32 spriteAddress = m_spritesFile->getU32();
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// no sprite? return an empty texture
if(spriteAddress == 0)
return nullptr;
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m_spritesFile->seek(spriteAddress);
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// skip color key
m_spritesFile->getU8();
m_spritesFile->getU8();
m_spritesFile->getU8();
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uint16 pixelDataSize = m_spritesFile->getU16();
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ImagePtr image(new Image(Size(SPRITE_SIZE, SPRITE_SIZE)));
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uint8 *pixels = image->getPixelData();
int writePos = 0;
int read = 0;
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// decompress pixels
while(read < pixelDataSize) {
uint16 transparentPixels = m_spritesFile->getU16();
uint16 coloredPixels = m_spritesFile->getU16();
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if(writePos + transparentPixels*4 + coloredPixels*3 >= SPRITE_DATA_SIZE) {
g_logger.warning(stdext::format("corrupt sprite id %d", id));
return nullptr;
}
for(int i = 0; i < transparentPixels; i++) {
pixels[writePos + 0] = 0x00;
pixels[writePos + 1] = 0x00;
pixels[writePos + 2] = 0x00;
pixels[writePos + 3] = 0x00;
writePos += 4;
}
for(int i = 0; i < coloredPixels; i++) {
pixels[writePos + 0] = m_spritesFile->getU8();
pixels[writePos + 1] = m_spritesFile->getU8();
pixels[writePos + 2] = m_spritesFile->getU8();
pixels[writePos + 3] = 0xFF;
writePos += 4;
}
read += 4 + (3 * coloredPixels);
}
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// fill remaining pixels with alpha
while(writePos < SPRITE_DATA_SIZE) {
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pixels[writePos + 0] = 0x00;
pixels[writePos + 1] = 0x00;
pixels[writePos + 2] = 0x00;
pixels[writePos + 3] = 0x00;
writePos += 4;
}
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return image;
} catch(stdext::exception& e) {
g_logger.error(stdext::format("Failed to get sprite id %d: %s", id, e.what()));
return nullptr;
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}
}