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playwall.c
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playwall.c
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#include "data_structs.h"
#include <stdio.h>
#include "utility.h"
extern int movecounter;
int isValidWall(char* color,char* orientation,char* move,int siz,GAMESTATE* gs,int* x_move,int* y_move){
int move_number;
if(!strcmp(move,"") || !strcmp(color,"") || !strcmp(orientation,"")) //First check if the 2 needed arguments are passed.
return -1; //Syntax error if they are not.
if(isWhite(color)){ //Check for amount of walls,
if(gs->white_walls == 0)
return 0;
}
else if(isBlack(color)){
if(gs->black_walls == 0)
return 0;
}
else //If color is not correct, syntax error
return -1;
if(isHorizontal(orientation))
if(move[0]>='a' && move[0]<'a'+siz-1)
*y_move = 2*(move[0] - 'a'); //C-like coords(translating input into array [x][y])
else if (move[0]>='A' && move[0]<'Z'+siz-1)
*y_move = 2*(move[0] - 'A'); //Array coords for the move.
else
return 0;
else if(isVertical(orientation))
if(move[0]>='a' && move[0]<'a'+siz-1)
*y_move = 2*(move[0] - 'a') + 1;
else if(move[0]>='A' && move[0]<'Z'+siz-1)
*y_move = 2*(move[0]-'A') + 1; //Array coords for the move.
else
return 0;
else
return 0;
if (!isInt(&move[1]))
return 0;
move_number = atoi(&move[1]);
if (move_number<2 || move_number>siz)
return 0;
if(isHorizontal(orientation))
*x_move = 2*(siz - move_number)+1;
else if(isVertical(orientation))
*x_move = 2*(siz - move_number);
if(isHorizontal(orientation)){
if(gs->board[*x_move][*y_move]=='=' || gs->board[*x_move][*y_move+2]=='=')
return 0;
if(gs->board[*x_move - 1][*y_move + 1]=='H' && gs->board[*x_move + 1][*y_move + 1]=='H' && gs->board[*x_move][*y_move + 1]=='H')
return 0;
}
if(isVertical(orientation)){
if(gs->board[*x_move][*y_move]=='H' || gs->board[*x_move+2][*y_move]=='H')
return 0;
if(gs->board[*x_move + 1][*y_move -1]=='=' && gs->board[*x_move + 1][*y_move + 1]=='=' && gs->board[*x_move + 1][*y_move]=='='){
return 0;
}
}
return 1;
}
int isblocked(GAMESTATE* gs,int siz){
int j,d[100][100],f0=1,f1=1,f2=1,f3=1;
min_distance(gs->pos_white.x,gs->pos_white.y,2*siz-1,gs->board,d);
for (j=0; j<2*siz-1; j++){
if (d[2*siz-2][j]<1000)
f0=0;
if (d[0][j]<1000)
f1=0;
}
min_distance(gs->pos_black.x,gs->pos_black.y,2*siz-1,gs->board,d);
for (j=0; j<2*siz-1; j++){
if (d[2*siz-2][j]<1000)
f2=0;
if (d[0][j]<1000)
f3=0;
}
if (f0 || f1 || f2 || f3)
return 1;
return 0;
}
void playwall(char* color,char* move,char* orientation,int siz,GAMESTATE* gs,Stackptr* gsHistory){
int x_move = 0;
int y_move = 0;
int valid = isValidWall(color,orientation,move,siz,gs,&x_move,&y_move);
if (!valid){
printf("? illegal move\n\n");
return;
}
else if(valid == -1){
printf("? syntax error\n\n");
return;
}
if(isHorizontal(orientation)){
push(gsHistory,*gs);
gs->board[x_move][y_move] = '=';
gs->board[x_move][y_move+1] = '=';
gs->board[x_move][y_move+2] = '=';
if (isblocked(gs,siz)){
pop(gsHistory);
gs->board[x_move][y_move] = '-';
gs->board[x_move][y_move+1] = '-';
gs->board[x_move][y_move+2] = '-';
printf("? illegal move\n\n");
return;
}
movecounter++;
if(isWhite(color))
gs->white_walls--;
else if(isBlack(color))
gs->black_walls--;
}
else{
push(gsHistory,*gs);
gs->board[x_move][y_move] = 'H';
gs->board[x_move+1][y_move] = 'H';
gs->board[x_move+2][y_move] = 'H';
if (isblocked(gs,siz)){
pop(gsHistory);
gs->board[x_move][y_move] = '|';
gs->board[x_move+1][y_move] = '|';
gs->board[x_move+2][y_move] = '|';
printf("? illegal move\n\n");
return;
}
movecounter++;
if(isWhite(color))
gs->white_walls--;
else if(isBlack(color))
gs->black_walls--;
}
printf("= \n\n");
}
int trywall(char* color,char* move,char* orientation,int siz,GAMESTATE* gs,int *x_move,int *y_move){
*x_move = 0;
*y_move = 0;
int valid = isValidWall(color,orientation,move,siz,gs,x_move,y_move);
if(valid != 1)
return 0;
if(isHorizontal(orientation)){
gs->board[*x_move][*y_move] = '=';
gs->board[*x_move][*y_move+1] = '=';
gs->board[*x_move][*y_move+2] = '=';
if (isblocked(gs,siz)){
gs->board[*x_move][*y_move] = '-';
gs->board[*x_move][*y_move+1] = '-';
gs->board[*x_move][*y_move+2] = '-';
return 0;
}
if(isWhite(color))
gs->white_walls--;
else if(isBlack(color))
gs->black_walls--;
}
else{
gs->board[*x_move][*y_move] = 'H';
gs->board[*x_move+1][*y_move] = 'H';
gs->board[*x_move+2][*y_move] = 'H';
if (isblocked(gs,siz)){
gs->board[*x_move][*y_move] = '|';
gs->board[*x_move+1][*y_move] = '|';
gs->board[*x_move+2][*y_move] = '|';
return 0;
}
if(isWhite(color))
gs->white_walls--;
else if(isBlack(color))
gs->black_walls--;
}
return 1;
}
// ---------------------------------------------------
void isValidWallMUTE(char* color,char* orientation,char* move,int siz,GAMESTATE* gs,int* x_move,int* y_move){
*x_move=move[0];
*y_move=move[1];
}
void playwallMUTE(char* color,char* move,char* orientation,int siz,GAMESTATE* gs){
int x_move = 0;
int y_move = 0;
isValidWallMUTE(color,orientation,move,siz,gs,&x_move,&y_move);
if(isHorizontal(orientation)){
gs->board[x_move][y_move] = '=';
gs->board[x_move][y_move+1] = '=';
gs->board[x_move][y_move+2] = '=';
if(isWhite(color))
gs->white_walls--;
else if(isBlack(color))
gs->black_walls--;
}
else{
gs->board[x_move][y_move] = 'H';
gs->board[x_move+1][y_move] = 'H';
gs->board[x_move+2][y_move] = 'H';
if(isWhite(color))
gs->white_walls--;
else if(isBlack(color))
gs->black_walls--;
}
}