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2048.circom
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2048.circom
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pragma circom 2.0.1;
template Game () {
signal input direction;
signal input gameboard[4][4];
signal output ouputboard[4][4];
log("copyright by www.zkgamestop.com");
log("author lance deng");
var gamedata[4][4];
//input
for (var i = 0;i<4;i++){
for (var j=0;j<4;j++){
gamedata[i][j] = gameboard[i][j];
}
}
signal output s <== gamedata[0][0] * gamedata[0][0];
//left
if (direction == 37){
for( var row = 0;row < 4 ;row++){
for(var i =0; i < 4;i++){
var k=0;
for(var j = i+1 ;j< 4;j++){
if (gamedata[row][i] == 0 && gamedata[row][j] > 0 && k ==0){
// log("row",row, i,j);
gamedata[row][i]= gamedata[row][j];
gamedata[row][j] = 0;
k=1;
// log("row",row,gamedata[0][0],gamedata[0][1],gamedata[0][2],gamedata[0][3]);
}
}
}
//add
if(gamedata[row][0] == gamedata[row][1] && gamedata[row][2] == gamedata[row][3] ){
gamedata[row][0]= gamedata[row][0] + gamedata[row][1] ;
gamedata[row][1] = gamedata[row][2] + gamedata[row][3];
gamedata[row][2]=0;
gamedata[row][3]=0;
}
if(gamedata[row][0] == gamedata[row][1] && gamedata[row][2] != gamedata[row][3] ){
gamedata[row][0]= gamedata[row][0] + gamedata[row][1] ;
gamedata[row][1] = gamedata[row][2];
gamedata[row][2]= gamedata[row][3];
gamedata[row][3]=0;
}
if(gamedata[row][0] != gamedata[row][1] && gamedata[row][2] == gamedata[row][3] && gamedata[row][1] != gamedata[row][2] ){
gamedata[row][2]= gamedata[row][3] + gamedata[row][2];
gamedata[row][3]=0;
}
if(gamedata[row][0] != gamedata[row][1] && gamedata[row][1] == gamedata[row][2] ){
gamedata[row][1] = gamedata[row][1] + gamedata[row][2];
gamedata[row][2]= gamedata[row][3];
gamedata[row][3]=0;
}
}
}
//right
if (direction == 39){
for( var row = 0;row < 4 ;row++){
// log("row",row);
for(var i =3; i >= 0;i--){
var k=0;
for(var j = i-1 ;j>= 0;j--){
// log("row",row, i,j,gamedata[row][i] ,gamedata[row][j] );
if (gamedata[row][i] == 0 && gamedata[row][j] > 0 && k ==0){
// log("row",row, i,j);
gamedata[row][i]= gamedata[row][j];
gamedata[row][j] = 0;
k=1;
// log("row",row,gamedata[0][0],gamedata[0][1],gamedata[0][2],gamedata[0][3]);
}
}
}
if(gamedata[row][0] == gamedata[row][1] && gamedata[row][2] == gamedata[row][3] ){
gamedata[row][3]=gamedata[row][3] + gamedata[row][2] ;
gamedata[row][2]=gamedata[row][1] + gamedata[row][0];
gamedata[row][0]= 0;
gamedata[row][1] = 0;
}
if(gamedata[row][0] == gamedata[row][1] && gamedata[row][2] != gamedata[row][3] && gamedata[row][2] != gamedata[row][1]){
gamedata[row][1] = gamedata[row][0] + gamedata[row][1] ;
gamedata[row][0]= 0;
}
if(gamedata[row][0] != gamedata[row][1] && gamedata[row][2] == gamedata[row][3] ){
gamedata[row][3]= gamedata[row][3] + gamedata[row][2];
gamedata[row][2]= gamedata[row][1] ;
gamedata[row][1]= gamedata[row][0] ;
gamedata[row][0]= 0 ;
}
if( gamedata[row][1] == gamedata[row][2] && gamedata[row][2] != gamedata[row][3] ){
gamedata[row][2] = gamedata[row][1] + gamedata[row][2];
gamedata[row][1]= gamedata[row][0];
gamedata[row][0]=0;
}
}
}
//down
if (direction == 40){
for( var col = 0;col < 4 ;col++){
// log("row",row);
for(var i =3; i >= 0;i--){
var k=0;
for(var j = i-1 ;j>= 0;j--){
// log("row",row, i,j,gamedata[row][i] ,gamedata[row][j] );
if (gamedata[i][col] == 0 && gamedata[j][col] > 0 && k ==0){
// log("row",row, i,j);
gamedata[i][col]= gamedata[j][col];
gamedata[j][col] = 0;
k=1;
// log("row",row,gamedata[0][0],gamedata[0][1],gamedata[0][2],gamedata[0][3]);
}
}
}
//add
if(gamedata[3][col] == gamedata[2][col] && gamedata[1][col] == gamedata[0][col] ){
gamedata[3][col] = gamedata[2][col] + gamedata[3][col];
gamedata[2][col] = gamedata[0][col] + gamedata[1][col];
gamedata[0][col] = 0;
gamedata[1][col] = 0;
}
if(gamedata[3][col] == gamedata[2][col] && gamedata[1][col] != gamedata[0][col] ){
gamedata[3][col] = gamedata[2][col] + gamedata[3][col];
gamedata[2][col] = gamedata[1][col];
gamedata[1][col] = gamedata[0][col];
gamedata[0][col] = 0;
}
if(gamedata[3][col] != gamedata[2][col] && gamedata[1][col] == gamedata[0][col] && gamedata[2][col] != gamedata[1][col] ){
gamedata[1][col] = gamedata[1][col] + gamedata[0][col];
gamedata[0][col] = 0;
}
if(gamedata[3][col] != gamedata[2][col] && gamedata[2][col] == gamedata[1][col] ){
gamedata[2][col] = gamedata[2][col] + gamedata[1][col];
gamedata[1][col] = gamedata[0][col];
gamedata[0][col] = 0;
}
}
}
//up
//left
if (direction == 38){
for( var col = 0;col < 4 ;col++){
// log("row",row);
for(var i =0; i < 4;i++){
var k=0;
for(var j = i+1 ;j< 4;j++){
// log("row",row, i,j,gamedata[row][i] ,gamedata[row][j] );
if (gamedata[i][col] == 0 && gamedata[j][col] > 0 && k ==0){
// log("row",row, i,j);
gamedata[i][col]= gamedata[j][col];
gamedata[j][col] = 0;
k=1;
// log("row",row,gamedata[0][0],gamedata[0][1],gamedata[0][2],gamedata[0][3]);
}
}
}
if(gamedata[3][col] == gamedata[2][col] && gamedata[1][col] == gamedata[0][col] ){
gamedata[0][col] = gamedata[0][col] + gamedata[1][col];
gamedata[1][col] = gamedata[2][col] + gamedata[3][col];
gamedata[2][col] = 0;
gamedata[3][col] = 0;
}
if(gamedata[3][col] != gamedata[2][col] && gamedata[1][col] == gamedata[0][col] ){
gamedata[0][col] = gamedata[1][col] + gamedata[0][col];
gamedata[1][col] = gamedata[2][col];
gamedata[2][col] = gamedata[3][col];
gamedata[3][col] = 0;
}
if(gamedata[2][col] == gamedata[1][col] && gamedata[1][col] != gamedata[0][col] ){
gamedata[1][col] = gamedata[2][col] + gamedata[1][col];
gamedata[2][col] = gamedata[3][col];
gamedata[3][col] = 0;
}
if(gamedata[3][col] == gamedata[2][col] && gamedata[1][col] != gamedata[0][col] ){
gamedata[2][col] = gamedata[2][col] + gamedata[3][col];
gamedata[3][col] = 0;
}
}
}
log(" --input-- ");
log(gameboard[0][0],gameboard[0][1],gameboard[0][2],gameboard[0][3]);
log(gameboard[1][0],gameboard[1][1],gameboard[1][2],gameboard[1][3]);
log(gameboard[2][0],gameboard[2][1],gameboard[2][2],gameboard[2][3]);
log(gameboard[3][0],gameboard[3][1],gameboard[3][2],gameboard[3][3]);
log(" --output-- ");
log(gamedata[0][0],gamedata[0][1],gamedata[0][2],gamedata[0][3]);
log(gamedata[1][0],gamedata[1][1],gamedata[1][2],gamedata[1][3]);
log(gamedata[2][0],gamedata[2][1],gamedata[2][2],gamedata[2][3]);
log(gamedata[3][0],gamedata[3][1],gamedata[3][2],gamedata[3][3]);
for(var i =0;i<4;i++){
for(var j=0;j<4;j++ ){
ouputboard[i][j] <-- gamedata[i][j];
}
}
}
component main = Game();
/*
INPUT = {
"direction":"37",
"gameboard":[[4,2,2,2],[2,2,4,0],[2,2,0,2],[2,4,2,4]]
}
*/