00001 #include "TextSprite.h"
00002
00003 #include "SDL.h"
00004 #include "Visualisation.h"
00005 #include "AlphabetData.h"
00006 #include "GameConfig.h"
00007
00008 #include "GameException.h"
00009
00010 TextSprite::TextSprite(const SpriteID &id, const std::string &message, const ColourRGB &colour)
00011 : Sprite(id)
00012 {
00013 m_width = message.size() * CHARACTER_WIDTH;
00014 m_height = CHARACTER_HEIGHT;
00015
00016 m_numFrames = 1;
00017 SDL_Surface* pScreen = Visualisation::getSingleton()->GetScreen();
00018 m_pFrames = SDL_CreateRGBSurface(SDL_HWSURFACE, m_width, m_height, pScreen->format->BitsPerPixel, pScreen->format->Rmask, pScreen->format->Gmask, pScreen->format->Bmask, pScreen->format->Amask);
00019
00020 if(!m_pFrames)
00021 {
00022 throw GameException(eMajorError, "TextSprite: Constructor failed due to failed SDL_CreateRGBSurface() call.");
00023 return;
00024 }
00025
00026 ColourRGB transColour = Visualisation::getSingleton()->GetTransparencyKey();
00027 Uint32 key = SDL_MapRGB(m_pFrames->format, transColour.r, transColour.g, transColour.b);
00028 SDL_SetColorKey(m_pFrames, SDL_SRCCOLORKEY, key);
00029
00030 int xOffset = 0;
00031 for(size_t i = 0; i < message.size(); i++)
00032 {
00033 for(size_t x = 0; x < CHARACTER_WIDTH; x++)
00034 {
00035 for(size_t y = 0; y < CHARACTER_HEIGHT; y++)
00036 {
00037 int charDataIndex = (y * CHARACTER_WIDTH) + x;
00038 int pixelDataIndex = (y * m_width) + (x + xOffset);
00039
00040 const bool* pCharData = GetCharacterArray(message[i]);
00041 if(!pCharData)
00042 {
00043 throw GameException(eMinorError, "TextSprite: GetCharacterArray() failed on character: %c", message[i]);
00044 return;
00045 }
00046
00047 if(pCharData[charDataIndex])
00048 WritePixel(m_pFrames, x + xOffset, y, colour);
00049 else
00050 WritePixel(m_pFrames, x + xOffset, y, transColour);
00051 }
00052 }
00053
00054 xOffset += CHARACTER_WIDTH;
00055 }
00056 }
00057
00058 const bool* TextSprite::GetCharacterArray(char letter)
00059 {
00060 const bool* pCharacter = 0;
00061 switch(letter)
00062 {
00063 case ' ':
00064 pCharacter = gCharacterSpace;
00065 break;
00066 case 'A':
00067 case 'a':
00068 pCharacter = gCharacterA;
00069 break;
00070 case 'B':
00071 case 'b':
00072 pCharacter = gCharacterB;
00073 break;
00074 case 'C':
00075 case 'c':
00076 pCharacter = gCharacterC;
00077 break;
00078 case 'D':
00079 case 'd':
00080 pCharacter = gCharacterD;
00081 break;
00082 case 'E':
00083 case 'e':
00084 pCharacter = gCharacterE;
00085 break;
00086 case 'F':
00087 case 'f':
00088 pCharacter = gCharacterF;
00089 break;
00090 case 'G':
00091 case 'g':
00092 pCharacter = gCharacterG;
00093 break;
00094 case 'H':
00095 case 'h':
00096 pCharacter = gCharacterH;
00097 break;
00098 case 'I':
00099 case 'i':
00100 pCharacter = gCharacterI;
00101 break;
00102 case 'J':
00103 case 'j':
00104 pCharacter = gCharacterJ;
00105 break;
00106 case 'K':
00107 case 'k':
00108 pCharacter = gCharacterK;
00109 break;
00110 case 'L':
00111 case 'l':
00112 pCharacter = gCharacterL;
00113 break;
00114 case 'M':
00115 case 'm':
00116 pCharacter = gCharacterM;
00117 break;
00118 case 'N':
00119 case 'n':
00120 pCharacter = gCharacterN;
00121 break;
00122 case 'O':
00123 case 'o':
00124 pCharacter = gCharacterO;
00125 break;
00126 case 'P':
00127 case 'p':
00128 pCharacter = gCharacterP;
00129 break;
00130 case 'Q':
00131 case 'q':
00132 pCharacter = gCharacterQ;
00133 break;
00134 case 'R':
00135 case 'r':
00136 pCharacter = gCharacterR;
00137 break;
00138 case 'S':
00139 case 's':
00140 pCharacter = gCharacterS;
00141 break;
00142 case 'T':
00143 case 't':
00144 pCharacter = gCharacterT;
00145 break;
00146 case 'U':
00147 case 'u':
00148 pCharacter = gCharacterU;
00149 break;
00150 case 'V':
00151 case 'v':
00152 pCharacter = gCharacterV;
00153 break;
00154 case 'W':
00155 case 'w':
00156 pCharacter = gCharacterW;
00157 break;
00158 case 'X':
00159 case 'x':
00160 pCharacter = gCharacterX;
00161 break;
00162 case 'Y':
00163 case 'y':
00164 pCharacter = gCharacterY;
00165 break;
00166 case 'Z':
00167 case 'z':
00168 pCharacter = gCharacterZ;
00169 break;
00170 case '0':
00171 pCharacter = gCharacter0;
00172 break;
00173 case '1':
00174 pCharacter = gCharacter1;
00175 break;
00176 case '2':
00177 pCharacter = gCharacter2;
00178 break;
00179 case '3':
00180 pCharacter = gCharacter3;
00181 break;
00182 case '4':
00183 pCharacter = gCharacter4;
00184 break;
00185 case '5':
00186 pCharacter = gCharacter5;
00187 break;
00188 case '6':
00189 pCharacter = gCharacter6;
00190 break;
00191 case '7':
00192 pCharacter = gCharacter7;
00193 break;
00194 case '8':
00195 pCharacter = gCharacter8;
00196 break;
00197 case '9':
00198 pCharacter = gCharacter9;
00199 break;
00200 case '!':
00201 pCharacter = gCharacterExclamationMark;
00202 break;
00203 case '?':
00204 pCharacter = gCharacterQuestionMark;
00205 break;
00206 case '.':
00207 pCharacter = gCharacterFullstop;
00208 break;
00209 case ',':
00210 pCharacter = gCharacterComma;
00211 break;
00212 case ':':
00213 pCharacter = gCharacterColon;
00214 break;
00215 }
00216
00217 return pCharacter;
00218 }
