| 1 | /** |
| 2 | * @section LICENSE |
| 3 | * |
| 4 | * PickleLauncher |
| 5 | * Copyright (C) 2010-2011 Scott Smith |
| 6 | * |
| 7 | * This program is free software: you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation, either version 3 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 | * |
| 20 | * @section LOCATION |
| 21 | */ |
| 22 | |
| 23 | #include "cbase.h" |
| 24 | |
| 25 | CBase::CBase() |
| 26 | { |
| 27 | } |
| 28 | |
| 29 | CBase::~CBase() |
| 30 | { |
| 31 | } |
| 32 | |
| 33 | void CBase::Log( const char* output, ... ) |
| 34 | { |
| 35 | va_list fmtargs; |
| 36 | char buffer[1024]; |
| 37 | |
| 38 | va_start( fmtargs, output ); |
| 39 | vsnprintf( buffer, sizeof(buffer)-1, output, fmtargs ); |
| 40 | va_end( fmtargs ); |
| 41 | |
| 42 | fprintf( stdout, "%s", buffer ); |
| 43 | |
| 44 | #if defined(DEBUG) |
| 45 | FILE* fout = fopen( "log.txt", "a" ); |
| 46 | if (!fout) |
| 47 | { |
| 48 | printf( "Failed to open logfile\n" ); |
| 49 | return; |
| 50 | } |
| 51 | fputs(buffer, fout); |
| 52 | fclose(fout); |
| 53 | #endif |
| 54 | } |
| 55 | |
| 56 | uint32_t CBase::CheckRange( int32_t value, int32_t size ) |
| 57 | { |
| 58 | if (value >= 0 && value < size) |
| 59 | { |
| 60 | return 1; |
| 61 | } |
| 62 | else |
| 63 | { |
| 64 | return 0; |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | uint32_t CBase::rgb_to_int( SDL_Color color ) |
| 69 | { |
| 70 | return SDL_MapRGB(SDL_GetVideoSurface()->format, color.r, color.g, color.b); |
| 71 | } |
| 72 | |
| 73 | int32_t CBase::a_to_i( const string& line ) |
| 74 | { |
| 75 | int32_t number; |
| 76 | |
| 77 | stringstream ss( line.c_str() ); |
| 78 | ss >> number; // Convert string to integer |
| 79 | return number; |
| 80 | } |
| 81 | |
| 82 | string CBase::i_to_a( const int16_t num ) |
| 83 | { |
| 84 | string str; |
| 85 | stringstream ss; |
| 86 | |
| 87 | ss << num; |
| 88 | ss >> str; // Convert string to integer |
| 89 | return str; |
| 90 | } |
| 91 | |
| 92 | string CBase::lowercase( string text ) |
| 93 | { |
| 94 | transform( text.begin(), text.end(), text.begin(), (int (*)(int))tolower ); |
| 95 | return text; |
| 96 | } |
| 97 | |
| 98 | SDL_Surface* CBase::LoadImage( const string& filename ) |
| 99 | { |
| 100 | SDL_Surface* loaded_image = NULL; // The mpImage that's loaded |
| 101 | SDL_Surface* optimized_image = NULL; // The optimized surface that will be used |
| 102 | |
| 103 | loaded_image = IMG_Load( filename.c_str() ); //Load the mpImage |
| 104 | |
| 105 | // If the mpImage loaded |
| 106 | if (NULL != loaded_image) |
| 107 | { |
| 108 | optimized_image = SDL_DisplayFormatAlpha( loaded_image ); // Create an optimized surface |
| 109 | SDL_FreeSurface(loaded_image); // Free the old surface |
| 110 | loaded_image = NULL; |
| 111 | |
| 112 | // If the surface was optimized |
| 113 | if (NULL != optimized_image) |
| 114 | { |
| 115 | // Color key surface |
| 116 | SDL_SetColorKey( optimized_image, SDL_RLEACCEL | SDL_SRCCOLORKEY, SDL_MapRGB( optimized_image->format, 0xFF, 0, 0xFF ) ); |
| 117 | } |
| 118 | } |
| 119 | else |
| 120 | { |
| 121 | //Log( "LoadImage -> Could not load image: %s at path='%s'\n", IMG_GetError(), filename.c_str() ); |
| 122 | return NULL; |
| 123 | } |
| 124 | |
| 125 | //Return the optimized surface |
| 126 | return optimized_image; |
| 127 | } |
| 128 | |
| 129 | void CBase::ApplyImage( int16_t x, int16_t y, SDL_Surface* src, SDL_Surface* dst, SDL_Rect* clip ) |
| 130 | { |
| 131 | // Holds offsets |
| 132 | SDL_Rect offset; |
| 133 | |
| 134 | // Get offsets |
| 135 | offset.x = x; |
| 136 | offset.y = y; |
| 137 | |
| 138 | // Blit |
| 139 | SDL_BlitSurface( src, clip, dst, &offset ); |
| 140 | } |
| 141 | |
| 142 | bool CBase::CheckRectCollision( SDL_Rect* boxA, SDL_Rect* boxB ) |
| 143 | { |
| 144 | // The sides of the SDL_Rects |
| 145 | int16_t leftA, leftB; |
| 146 | int16_t rightA, rightB; |
| 147 | int16_t topA, topB; |
| 148 | int16_t bottomA, bottomB; |
| 149 | |
| 150 | // Calculate the sides of rec mCollisionbox |
| 151 | leftA = boxB->x; |
| 152 | rightA = boxB->x + boxB->w; |
| 153 | topA = boxB->y; |
| 154 | bottomA = boxB->y + boxB->h; |
| 155 | |
| 156 | // Calculate the sides of rec box |
| 157 | leftB = boxA->x; |
| 158 | rightB = boxA->x + boxA->w; |
| 159 | topB = boxA->y; |
| 160 | bottomB = boxA->y + boxA->h; |
| 161 | |
| 162 | // If any of the sides from mCollisionbox are outside of box |
| 163 | if (bottomA <= topB) return false; |
| 164 | if (topA >= bottomB) return false; |
| 165 | if (rightA <= leftB) return false; |
| 166 | if (leftA >= rightB) return false; |
| 167 | // If none of the sides from mCollisionbox are outside box |
| 168 | return true; // Collision has occured |
| 169 | } |
| 170 | |
| 171 | void CBase::SplitString( const std::string& delimiter, const std::string& text, vector<string>& array ) |
| 172 | { |
| 173 | string::size_type pos1, pos2; |
| 174 | string value; |
| 175 | |
| 176 | array.clear(); |
| 177 | |
| 178 | pos1 = text.find( delimiter, 0 ); |
| 179 | if (pos1 == string::npos) |
| 180 | { |
| 181 | pos1 = text.length(); |
| 182 | } |
| 183 | value = text.substr( 0, pos1 ); |
| 184 | array.push_back(value); |
| 185 | |
| 186 | pos2 = pos1; |
| 187 | |
| 188 | do { |
| 189 | pos1 = text.find( delimiter, pos2 ); |
| 190 | |
| 191 | if (pos1 != string::npos) |
| 192 | { |
| 193 | pos2 = text.find( delimiter, pos1+1 ); |
| 194 | if (pos2 == string::npos) |
| 195 | { |
| 196 | pos2 = text.length(); |
| 197 | } |
| 198 | |
| 199 | value = text.substr( pos1+1, pos2-pos1-1 ); |
| 200 | array.push_back(value); |
| 201 | } |
| 202 | } while (pos1 != string::npos); |
| 203 | } |
| 204 | |
| 205 | bool CBase::UnprefixString( string& result, const string& line, const string& prefix ) |
| 206 | { |
| 207 | string::size_type pos; |
| 208 | |
| 209 | pos = line.find(prefix, 0); |
| 210 | if (pos == 0) |
| 211 | { |
| 212 | // Remove the prefix |
| 213 | pos = line.find("=", 0) + 1; |
| 214 | result = line.substr(pos, line.length()-pos); |
| 215 | // Remove any comments |
| 216 | pos = result.find("#", 0); |
| 217 | result = result.substr(0, pos); |
| 218 | // Trim left and right white spaces |
| 219 | result.erase( result.begin(), std::find_if(result.begin(), result.end(), std::not1(std::ptr_fun<int, int>(std::isspace))) ); |
| 220 | result.erase( std::find_if(result.rbegin(), result.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), result.end() ); |
| 221 | |
| 222 | return true; |
| 223 | } |
| 224 | return false; |
| 225 | } |
| 226 | |
| 227 | int16_t CBase::CheckExtension( const string& filename, const string& ext ) |
| 228 | { |
| 229 | int16_t result; |
| 230 | string::size_type pos; |
| 231 | |
| 232 | pos = filename.length() - ext.length(); |
| 233 | result = lowercase(filename).find( lowercase(ext), pos); |
| 234 | |
| 235 | return result; |
| 236 | } |
| 237 | |
| 238 | void CBase::CheckPath( string& path ) |
| 239 | { |
| 240 | if (path.length()>1) |
| 241 | { |
| 242 | if (path.at(path.length()-1) != '/') |
| 243 | { |
| 244 | path += '/'; |
| 245 | } |
| 246 | } |
| 247 | else |
| 248 | { |
| 249 | Log( "Warning: CheckPath path too short\n" ); |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | string CBase::cmdclean( string& cmdline ) |
| 254 | { |
| 255 | string spchars = "\\`$();|{}&'\"*?<>[]!^~-#\n\r "; |
| 256 | for (uint i=0; i<spchars.length(); i++) |
| 257 | { |
| 258 | string curchar = spchars.substr(i,1); |
| 259 | cmdline = strreplace(cmdline, curchar, "\\"+curchar); |
| 260 | } |
| 261 | return cmdline; |
| 262 | } |
| 263 | |
| 264 | string CBase::strreplace( string& orig, const string& search, const string& replace ) |
| 265 | { |
| 266 | string::size_type pos = orig.find( search, 0 ); |
| 267 | while (pos != string::npos) |
| 268 | { |
| 269 | orig.replace(pos,search.length(),replace); |
| 270 | pos = orig.find( search, pos+replace.length() ); |
| 271 | } |
| 272 | return orig; |
| 273 | } |
| 274 | |
| 275 | SDL_Surface* CBase::ScaleSurface( SDL_Surface *surface, uint16_t width, uint16_t height ) |
| 276 | { |
| 277 | if(!surface || !width || !height) |
| 278 | return 0; |
| 279 | |
| 280 | SDL_Surface *_ret = SDL_CreateRGBSurface(surface->flags, width, height, surface->format->BitsPerPixel, |
| 281 | surface->format->Rmask, surface->format->Gmask, surface->format->Bmask, surface->format->Amask); |
| 282 | |
| 283 | double _stretch_factor_x = ( static_cast<double>(width) / static_cast<double>(surface->w) ), |
| 284 | _stretch_factor_y = ( static_cast<double>(height) / static_cast<double>(surface->h) ); |
| 285 | |
| 286 | for (int32_t y = 0; y < surface->h; y++) |
| 287 | for (int32_t x = 0; x < surface->w; x++) |
| 288 | for (int32_t o_y = 0; o_y < _stretch_factor_y; ++o_y) |
| 289 | for (int32_t o_x = 0; o_x < _stretch_factor_x; ++o_x) |
| 290 | putpixel( _ret, static_cast<int32_t>(_stretch_factor_x * x) + o_x, |
| 291 | static_cast<int32_t>(_stretch_factor_y * y) + o_y, getpixel(surface, x, y) ); |
| 292 | |
| 293 | return _ret; |
| 294 | } |
| 295 | |
| 296 | uint32_t CBase::getpixel( SDL_Surface *surface, int16_t x, int16_t y ) |
| 297 | { |
| 298 | int16_t bpp = surface->format->BytesPerPixel; |
| 299 | /* Here p is the address to the pixel we want to retrieve */ |
| 300 | uint8_t *p = (uint8_t *)surface->pixels + y * surface->pitch + x * bpp; |
| 301 | |
| 302 | switch (bpp) { |
| 303 | case 1: |
| 304 | return *p; |
| 305 | break; |
| 306 | |
| 307 | case 2: |
| 308 | return *(uint16_t *)p; |
| 309 | break; |
| 310 | |
| 311 | case 3: |
| 312 | if(SDL_BYTEORDER == SDL_BIG_ENDIAN) |
| 313 | return p[0] << 16 | p[1] << 8 | p[2]; |
| 314 | else |
| 315 | return p[0] | p[1] << 8 | p[2] << 16; |
| 316 | break; |
| 317 | |
| 318 | case 4: |
| 319 | return *(uint32_t *)p; |
| 320 | break; |
| 321 | |
| 322 | default: |
| 323 | return 0; /* shouldn't happen, but avoids warnings */ |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | void CBase::putpixel( SDL_Surface *surface, int16_t x, int16_t y, uint32_t pixel ) |
| 328 | { |
| 329 | int16_t bpp = surface->format->BytesPerPixel; |
| 330 | /* Here p is the address to the pixel we want to set */ |
| 331 | uint8_t *p = (uint8_t *)surface->pixels + y * surface->pitch + x * bpp; |
| 332 | |
| 333 | switch (bpp) { |
| 334 | case 1: |
| 335 | *p = pixel; |
| 336 | break; |
| 337 | |
| 338 | case 2: |
| 339 | *(uint16_t *)p = pixel; |
| 340 | break; |
| 341 | |
| 342 | case 3: |
| 343 | if(SDL_BYTEORDER == SDL_BIG_ENDIAN) { |
| 344 | p[0] = (pixel >> 16) & 0xff; |
| 345 | p[1] = (pixel >> 8) & 0xff; |
| 346 | p[2] = pixel & 0xff; |
| 347 | } else { |
| 348 | p[0] = pixel & 0xff; |
| 349 | p[1] = (pixel >> 8) & 0xff; |
| 350 | p[2] = (pixel >> 16) & 0xff; |
| 351 | } |
| 352 | break; |
| 353 | |
| 354 | case 4: |
| 355 | default: |
| 356 | *(uint32_t *)p = pixel; |
| 357 | break; |
| 358 | } |
| 359 | } |