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//
// TongaGame.m
// Gridlock
//
// Created by Brian on 11/6/04.
// Copyright 2004 __MyCompanyName__. All rights reserved.
//
#import "TongaGame.h"
@implementation TongaGame
-(void)reset {
[super reset];
[self setGrid:[DCHypergrid gridWithRows:[[[self configurationInfo] objectForKey:@"rows"] intValue]
columns:[[[self configurationInfo] objectForKey:@"cols"] intValue]]];
}
-(BOOL)appendValidMovesFromPosition:(id)startpos intoArray:(NSMutableArray *)moves {
int r = [startpos row];
int c = [startpos column];
int dr,dc;
BOOL found = NO;
for(dr=-1; dr<=+1; dr++) {
for(dc=-1; dc<=+1; dc++) {
if (dr!=0 || dc!=0) {
if ([self isValidRow:r+dr column:c+dc] && [self valueAtRow:r+dr column:c+dc]==0) {
if (!moves) return YES;
found = YES;
[moves addObject:[NSArray arrayWithObjects:startpos, [DCHypergridPosition positionWithRow:r+dr column:c+dc], nil]];
}
}
}
}
return found;
}
-(NSArray *)allValidMoveSequences {
NSMutableArray *moves = [NSMutableArray array];
NSEnumerator *pe = [[self grid] enumeratorForPositionsWithValue:0];
id pos;
while(pos=[pe nextObject]) {
[self appendValidMovesFromPosition:pos intoArray:moves];
}
return moves;
}
-(BOOL)isGameOver {
NSEnumerator *pe = [[self grid] enumeratorForPositionsWithValue:0];
id pos;
while(pos=[pe nextObject]) {
if ([self appendValidMovesFromPosition:pos intoArray:nil]) return NO;
}
return YES;
}
-(BOOL)prepareMoveSequence:(NSArray *)positions {
[self resetFutureGrid];
[[self futureGrid] setValue:[self currentPlayerNumber] atPosition:[positions objectAtIndex:0]];
[[self futureGrid] setValue:[self nextPlayerNumber] atPosition:[positions objectAtIndex:1]];
return YES;
}
-(BOOL)showScores {
return YES;
}
-(int)scoreForPlayer:(int)pnum {
NSArray *groups = [[self grid] connectedGroupsWithValue:pnum onlyOrthoganal:YES];
int score = 0;
int len = [groups count];
int i;
for(i=0; i<3 && i<len; i++) {
int size = [[groups objectAtIndex:len-1-i] count];
score += size*size;
}
return score;
}
@end
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