1 | |
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2 | #include <nds.h> |
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3 | #include "reco.h" |
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4 | |
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5 | PA_StylusPosition PA_StylusPos[20000]; |
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6 | |
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7 | PA_RecoValues PA_Reco; |
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8 | |
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9 | char PA_RecoShape[16]; |
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10 | |
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11 | u8 PA_UseGraffiti = true; |
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12 | |
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13 | u8 PA_CustomReco = 0; // number of custom shapes |
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14 | PA_FormType PA_CustomShape[200]; |
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15 | |
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16 | PA_RecoInfos PA_RecoInfo; |
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17 | |
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18 | PA_FormType PA_Graffiti[PA_RECOTESTS] = { |
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19 | {' ', "AAAAAAAAAAAAAAA"}, |
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20 | {'a', "FGGGGGFB;:;;;;;"}, |
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21 | {'b', "JJJJJIGC>:8=<62"}, |
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22 | {'c', "01234689;<>?@BC"}, |
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23 | {'d', "=995KJIFB?=;853"}, |
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24 | {'e', "1236;>@136;=?@A"}, |
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25 | {'f', "121111399998779"}, |
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26 | {'g', "235689;=@CFIJEA"}, |
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27 | {'h', "8999999;HFEA><:"}, |
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28 | {'i', "999999999999999"}, |
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29 | {'j', "999999998653100"}, |
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30 | {'k', "654320NIDCA?==="}, |
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31 | {'l', "999999988<AA@@@"}, |
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32 | {'m', "HGGEA<;EFDA=;99"}, |
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33 | {'n', "HHHIE<;;;<GIHHH"}, |
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34 | {'o', "4689;<?BDFHKMO0"}, |
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35 | {'p', "<KJIIIHGEB>;853"}, |
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36 | {'q', "4679<?CDFHKMJBA"}, |
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37 | {'r', "999IIIIGC?:53<="}, |
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38 | {'s', "0235:>?>>;73100"}, |
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39 | {'t', "AAAA@@@;8999999"}, |
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40 | {'u', "899:;<>ACEGHHIH"}, |
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41 | {'v', ";;:::::?FGGHHGF"}, |
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42 | {'w', "::;=BA<<@CDEFGH"}, |
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43 | {'x', ";;;;;;;;;;;;;;;"}, |
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44 | {'y', ">;=AFF899974OIF"}, |
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45 | {'z', ">A@@>843348?@AA"}, |
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46 | {'0', "35789;=AEGHIJKM"}, |
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47 | {'1', "CDEFFE988889999"}, |
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48 | {'2', "GDB@>:6546>AAAA"}, |
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49 | {'3', "CA>833A@=953210"}, |
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50 | {'4', "55558>@A@>97778"}, |
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51 | {'5', "00037:@@=;7310O"}, |
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52 | {'6', "346779;>@CFKN02"}, |
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53 | {'7', "AAAAAA@>9655556"}, |
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54 | {'8', "37;=;71MIECCGM1"}, |
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55 | {'9', "8<@CGL28<<;6311"}, |
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56 | {PA_BACKSPACE, "000000000000000"}, |
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57 | {PA_ENTER, "555555555555555"}, |
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58 | // {'?', "FCA@><8655799::"}, |
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59 | {'.', "LLLLLLLLLLLLLLL"} |
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60 | }; |
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61 | |
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62 | |
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63 | |
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64 | void PA_AddStylusPos(u8 x, u8 y){ |
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65 | if (!((x == PA_StylusPos[PA_Reco.nvalues-1].x) && (y == PA_StylusPos[PA_Reco.nvalues-1].y))){ |
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66 | PA_StylusPos[PA_Reco.nvalues].x = x; |
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67 | PA_StylusPos[PA_Reco.nvalues].y = y; |
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68 | PA_Reco.nvalues++; |
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69 | } |
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70 | } |
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71 | |
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72 | |
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73 | void PA_StylusLine(u8 x1, u8 y1, u8 x2, u8 y2){ |
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74 | int i,dx,dy,sdx,sdy,dxabs,dyabs,x,y,px,py; |
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75 | |
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76 | dx=x2-x1; /* the horizontal distance of the line */ |
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77 | dy=y2-y1; /* the vertical distance of the line */ |
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78 | dxabs = dx; |
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79 | sdx = 1; |
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80 | if (dx < 0) { |
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81 | dxabs = -dx; |
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82 | sdx = -1; |
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83 | } |
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84 | dyabs = dy; |
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85 | sdy = 1; |
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86 | if (dy < 0) { |
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87 | dyabs = -dy; |
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88 | sdy = -1; |
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89 | } |
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90 | |
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91 | x=dyabs>>1; |
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92 | y=dxabs>>1; |
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93 | px=x1; |
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94 | py=y1; |
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95 | |
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96 | PA_AddStylusPos(px, py); |
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97 | |
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98 | |
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99 | if (dxabs>=dyabs) { |
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100 | for(i=0;i<dxabs;i++) { |
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101 | y+=dyabs; |
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102 | if (y>=dxabs) { |
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103 | y-=dxabs; |
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104 | py+=sdy; |
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105 | } |
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106 | px+=sdx; |
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107 | PA_AddStylusPos(px, py); |
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108 | } |
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109 | } |
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110 | else { |
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111 | for(i=0;i<dyabs;i++) { |
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112 | x+=dxabs; |
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113 | if (x>=dyabs) { |
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114 | x-=dyabs; |
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115 | px+=sdx; |
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116 | } |
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117 | py+=sdy; |
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118 | PA_AddStylusPos(px, py); |
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119 | } |
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120 | } |
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121 | } |
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122 | |
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123 | |
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124 | #define PA_ShapeAddPoint(i, value){ \ |
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125 | points[i] = PA_StylusPos[value]; \ |
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126 | if (points[i].x < PA_RecoInfo.minX) PA_RecoInfo.minX = points[i].x; \ |
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127 | else if (points[i].x > PA_RecoInfo.maxX) PA_RecoInfo.maxX = points[i].x; \ |
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128 | if (points[i].y < PA_RecoInfo.minY) PA_RecoInfo.minY = points[i].y; \ |
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129 | else if (points[i].y > PA_RecoInfo.maxY) PA_RecoInfo.maxY = points[i].y; } |
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130 | |
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131 | |
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132 | |
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133 | |
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134 | char PA_AnalyzeShape(void){ |
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135 | s32 i; |
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136 | // for (i = 0; i < 32; i++) PA_OutputSimpleText(1, 0, i, " "); |
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137 | |
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138 | PA_StylusPosition points[17]; |
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139 | for (i = 0; i < 16; i++){ |
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140 | PA_ShapeAddPoint(i, (PA_Reco.nvalues*i)>>4) |
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141 | } |
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142 | PA_ShapeAddPoint(16, PA_Reco.nvalues-1) |
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143 | //points[16] = PA_StylusPos[PA_Reco.nvalues-1]; |
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144 | PA_RecoInfo.endX = PA_StylusPos[PA_Reco.nvalues-1].x; // last values |
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145 | PA_RecoInfo.endY = PA_StylusPos[PA_Reco.nvalues-1].y; // last values |
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146 | PA_RecoInfo.Length = PA_Reco.nvalues; // Total length |
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147 | PA_RecoInfo.Angle = PA_GetAngle(points[0].x, points[0].y, points[16].x, points[16].y); |
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148 | |
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149 | //Better values |
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150 | if (PA_RecoInfo.minX > 1) PA_RecoInfo.minX-=2; |
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151 | if (PA_RecoInfo.maxX <254) PA_RecoInfo.maxX+=2; |
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152 | if (PA_RecoInfo.minY > 1) PA_RecoInfo.minY-=2; |
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153 | if (PA_RecoInfo.maxY <190) PA_RecoInfo.maxY+=2; |
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154 | |
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155 | u16 angles[15]; |
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156 | for (i = 0; i < 15; i++) angles[i] = PA_GetAngle(points[i+2].x, points[i+2].y, points[i].x, points[i].y); |
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157 | |
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158 | for (i = 0; i < 15; i++) PA_RecoShape[i] = '0' + (((angles[i]+16)&511)>>4); |
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159 | PA_RecoShape[15] = 0; |
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160 | // printk("%s\n", PA_RecoShape); |
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161 | |
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162 | u8 letter = 0; // 0 par défaut |
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163 | s32 diff = 65000; // Diff max par défaut |
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164 | |
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165 | u8 j; |
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166 | |
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167 | if(PA_UseGraffiti){ |
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168 | for (j = 0; j < PA_RECOTESTS; j++){ |
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169 | s32 tempvalue = 0; |
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170 | s32 tempdiff = 0; |
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171 | for (i = 0; i < 15; i++) { |
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172 | tempvalue = (PA_RecoShape[i]-PA_Graffiti[j].code[i])&31; |
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173 | tempvalue -= (tempvalue >> 4)<<5; // normalise |
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174 | if (tempvalue < 0) tempvalue = -tempvalue; |
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175 | tempdiff += tempvalue; // value |
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176 | } |
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177 | |
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178 | if (tempdiff < diff){ // Nouvelle lettre ! |
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179 | diff = tempdiff; |
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180 | letter = PA_Graffiti[j].letter; |
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181 | } |
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182 | } |
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183 | } |
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184 | if (PA_CustomReco > 0){ |
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185 | for (j = 0; j < PA_CustomReco; j++){ |
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186 | s32 tempvalue = 0; |
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187 | s32 tempdiff = 0; |
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188 | for (i = 0; i < 15; i++) { |
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189 | tempvalue = (PA_RecoShape[i]-PA_CustomShape[j].code[i])&31; |
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190 | tempvalue -= (tempvalue >> 4)<<5; // normalise |
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191 | if (tempvalue < 0) tempvalue = -tempvalue; |
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192 | tempdiff += tempvalue; // value |
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193 | } |
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194 | |
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195 | if (tempdiff < diff){ // Nouvelle lettre ! |
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196 | diff = tempdiff; |
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197 | letter = PA_CustomShape[j].letter; |
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198 | } |
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199 | } |
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200 | |
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201 | } |
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202 | PA_RecoInfo.Difference = diff; // Difference to perfect shape |
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203 | PA_RecoInfo.Shape = letter; |
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204 | |
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205 | return letter; |
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206 | } |
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207 | |
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208 | int old_down = 0; |
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209 | |
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210 | char PA_CheckLetter(int down, int x, int y){ |
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211 | if(!old_down && down){ |
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212 | PA_Reco.nvalues = 0; // Start over again |
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213 | PA_Reco.oldn = 0; |
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214 | PA_Reco.veryold = 0; |
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215 | |
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216 | PA_RecoInfo.startX = PA_StylusPos[PA_Reco.nvalues].x = x; // start values |
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217 | PA_RecoInfo.startY = PA_StylusPos[PA_Reco.nvalues].y = y; |
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218 | PA_RecoInfo.minX = PA_RecoInfo.maxX = PA_RecoInfo.startX; |
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219 | PA_RecoInfo.minY = PA_RecoInfo.maxY = PA_RecoInfo.startY; |
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220 | PA_Reco.nvalues++; |
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221 | } |
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222 | else if(old_down && down) { |
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223 | PA_StylusLine(PA_StylusPos[PA_Reco.nvalues-1].x, PA_StylusPos[PA_Reco.nvalues-1].y, x, y); |
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224 | |
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225 | } |
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226 | |
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227 | |
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228 | if(old_down && !down){ // Start analyzing... |
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229 | PA_Reco.nvalues = PA_Reco.veryold; |
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230 | old_down = down; |
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231 | return PA_AnalyzeShape(); |
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232 | } |
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233 | PA_Reco.veryold = PA_Reco.oldn; |
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234 | PA_Reco.oldn = PA_Reco.nvalues; |
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235 | old_down = down; |
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236 | return 0; |
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237 | } |
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238 | |
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239 | |
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