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#include <nds.h>
#include "reco.h"
PA_StylusPosition PA_StylusPos[20000];
PA_RecoValues PA_Reco;
char PA_RecoShape[16];
u8 PA_UseGraffiti = true;
u8 PA_CustomReco = 0; // number of custom shapes
PA_FormType PA_CustomShape[200];
PA_RecoInfos PA_RecoInfo;
PA_FormType PA_Graffiti[PA_RECOTESTS] = {
{' ', "AAAAAAAAAAAAAAA"},
{'a', "FGGGGGFB;:;;;;;"},
{'b', "JJJJJIGC>:8=<62"},
{'c', "01234689;<>?@BC"},
{'d', "=995KJIFB?=;853"},
{'e', "1236;>@136;=?@A"},
{'f', "121111399998779"},
{'g', "235689;=@CFIJEA"},
{'h', "8999999;HFEA><:"},
{'i', "999999999999999"},
{'j', "999999998653100"},
{'k', "654320NIDCA?==="},
{'l', "999999988<AA@@@"},
{'m', "HGGEA<;EFDA=;99"},
{'n', "HHHIE<;;;<GIHHH"},
{'o', "4689;<?BDFHKMO0"},
{'p', "<KJIIIHGEB>;853"},
{'q', "4679<?CDFHKMJBA"},
{'r', "999IIIIGC?:53<="},
{'s', "0235:>?>>;73100"},
{'t', "AAAA@@@;8999999"},
{'u', "899:;<>ACEGHHIH"},
{'v', ";;:::::?FGGHHGF"},
{'w', "::;=BA<<@CDEFGH"},
{'x', ";;;;;;;;;;;;;;;"},
{'y', ">;=AFF899974OIF"},
{'z', ">A@@>843348?@AA"},
{'0', "35789;=AEGHIJKM"},
{'1', "CDEFFE988889999"},
{'2', "GDB@>:6546>AAAA"},
{'3', "CA>833A@=953210"},
{'4', "55558>@A@>97778"},
{'5', "00037:@@=;7310O"},
{'6', "346779;>@CFKN02"},
{'7', "AAAAAA@>9655556"},
{'8', "37;=;71MIECCGM1"},
{'9', "8<@CGL28<<;6311"},
{PA_BACKSPACE, "000000000000000"},
{PA_ENTER, "555555555555555"},
// {'?', "FCA@><8655799::"},
{'.', "LLLLLLLLLLLLLLL"}
};
void PA_AddStylusPos(u8 x, u8 y){
if (!((x == PA_StylusPos[PA_Reco.nvalues-1].x) && (y == PA_StylusPos[PA_Reco.nvalues-1].y))){
PA_StylusPos[PA_Reco.nvalues].x = x;
PA_StylusPos[PA_Reco.nvalues].y = y;
PA_Reco.nvalues++;
}
}
void PA_StylusLine(u8 x1, u8 y1, u8 x2, u8 y2){
int i,dx,dy,sdx,sdy,dxabs,dyabs,x,y,px,py;
dx=x2-x1; /* the horizontal distance of the line */
dy=y2-y1; /* the vertical distance of the line */
dxabs = dx;
sdx = 1;
if (dx < 0) {
dxabs = -dx;
sdx = -1;
}
dyabs = dy;
sdy = 1;
if (dy < 0) {
dyabs = -dy;
sdy = -1;
}
x=dyabs>>1;
y=dxabs>>1;
px=x1;
py=y1;
PA_AddStylusPos(px, py);
if (dxabs>=dyabs) {
for(i=0;i<dxabs;i++) {
y+=dyabs;
if (y>=dxabs) {
y-=dxabs;
py+=sdy;
}
px+=sdx;
PA_AddStylusPos(px, py);
}
}
else {
for(i=0;i<dyabs;i++) {
x+=dxabs;
if (x>=dyabs) {
x-=dyabs;
px+=sdx;
}
py+=sdy;
PA_AddStylusPos(px, py);
}
}
}
#define PA_ShapeAddPoint(i, value){ \
points[i] = PA_StylusPos[value]; \
if (points[i].x < PA_RecoInfo.minX) PA_RecoInfo.minX = points[i].x; \
else if (points[i].x > PA_RecoInfo.maxX) PA_RecoInfo.maxX = points[i].x; \
if (points[i].y < PA_RecoInfo.minY) PA_RecoInfo.minY = points[i].y; \
else if (points[i].y > PA_RecoInfo.maxY) PA_RecoInfo.maxY = points[i].y; }
char PA_AnalyzeShape(void){
s32 i;
// for (i = 0; i < 32; i++) PA_OutputSimpleText(1, 0, i, " ");
PA_StylusPosition points[17];
for (i = 0; i < 16; i++){
PA_ShapeAddPoint(i, (PA_Reco.nvalues*i)>>4)
}
PA_ShapeAddPoint(16, PA_Reco.nvalues-1)
//points[16] = PA_StylusPos[PA_Reco.nvalues-1];
PA_RecoInfo.endX = PA_StylusPos[PA_Reco.nvalues-1].x; // last values
PA_RecoInfo.endY = PA_StylusPos[PA_Reco.nvalues-1].y; // last values
PA_RecoInfo.Length = PA_Reco.nvalues; // Total length
PA_RecoInfo.Angle = PA_GetAngle(points[0].x, points[0].y, points[16].x, points[16].y);
//Better values
if (PA_RecoInfo.minX > 1) PA_RecoInfo.minX-=2;
if (PA_RecoInfo.maxX <254) PA_RecoInfo.maxX+=2;
if (PA_RecoInfo.minY > 1) PA_RecoInfo.minY-=2;
if (PA_RecoInfo.maxY <190) PA_RecoInfo.maxY+=2;
u16 angles[15];
for (i = 0; i < 15; i++) angles[i] = PA_GetAngle(points[i+2].x, points[i+2].y, points[i].x, points[i].y);
for (i = 0; i < 15; i++) PA_RecoShape[i] = '0' + (((angles[i]+16)&511)>>4);
PA_RecoShape[15] = 0;
// printk("%s\n", PA_RecoShape);
u8 letter = 0; // 0 par défaut
s32 diff = 65000; // Diff max par défaut
u8 j;
if(PA_UseGraffiti){
for (j = 0; j < PA_RECOTESTS; j++){
s32 tempvalue = 0;
s32 tempdiff = 0;
for (i = 0; i < 15; i++) {
tempvalue = (PA_RecoShape[i]-PA_Graffiti[j].code[i])&31;
tempvalue -= (tempvalue >> 4)<<5; // normalise
if (tempvalue < 0) tempvalue = -tempvalue;
tempdiff += tempvalue; // value
}
if (tempdiff < diff){ // Nouvelle lettre !
diff = tempdiff;
letter = PA_Graffiti[j].letter;
}
}
}
if (PA_CustomReco > 0){
for (j = 0; j < PA_CustomReco; j++){
s32 tempvalue = 0;
s32 tempdiff = 0;
for (i = 0; i < 15; i++) {
tempvalue = (PA_RecoShape[i]-PA_CustomShape[j].code[i])&31;
tempvalue -= (tempvalue >> 4)<<5; // normalise
if (tempvalue < 0) tempvalue = -tempvalue;
tempdiff += tempvalue; // value
}
if (tempdiff < diff){ // Nouvelle lettre !
diff = tempdiff;
letter = PA_CustomShape[j].letter;
}
}
}
PA_RecoInfo.Difference = diff; // Difference to perfect shape
PA_RecoInfo.Shape = letter;
return letter;
}
int old_down = 0;
char PA_CheckLetter(int down, int x, int y){
if(!old_down && down){
PA_Reco.nvalues = 0; // Start over again
PA_Reco.oldn = 0;
PA_Reco.veryold = 0;
PA_RecoInfo.startX = PA_StylusPos[PA_Reco.nvalues].x = x; // start values
PA_RecoInfo.startY = PA_StylusPos[PA_Reco.nvalues].y = y;
PA_RecoInfo.minX = PA_RecoInfo.maxX = PA_RecoInfo.startX;
PA_RecoInfo.minY = PA_RecoInfo.maxY = PA_RecoInfo.startY;
PA_Reco.nvalues++;
}
else if(old_down && down) {
PA_StylusLine(PA_StylusPos[PA_Reco.nvalues-1].x, PA_StylusPos[PA_Reco.nvalues-1].y, x, y);
}
if(old_down && !down){ // Start analyzing...
PA_Reco.nvalues = PA_Reco.veryold;
old_down = down;
return PA_AnalyzeShape();
}
PA_Reco.veryold = PA_Reco.oldn;
PA_Reco.oldn = PA_Reco.nvalues;
old_down = down;
return 0;
}
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