2048算法类代码,ObjC代码库,德仔网

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【ObjC】 2048算法类
作者:littleDog / 发布于2015/6/10/ 1056
参数model有一个二维数组data，及阶数matrix

	/ .h文件
	@class DataModel;
	
	@interface Algorithm : NSObject
	
	@property (nonatomic,assign) int addScore; // 加分
	
	- (void)caculateTop:(DataModel *)model; // 上滑规则
	- (void)caculateBottom:(DataModel *)model; // 下滑规则
	- (void)caculateLeft:(DataModel *)model; // 左滑规则
	- (void)caculateRight:(DataModel *)model; // 右滑规则
	
	- (BOOL)randNewOne:(DataModel *)data;
	
	- (int)getAddScore;
	
	@end
	
	
	// .m文件
	@implementation Algorithm
	
	#pragma mark - 滑动规则
	- (void)caculateTop:(DataModel *)model {
	 [self up_remove_blank:model];
	 [self up:model];
	}
	
	- (void)caculateBottom:(DataModel *)model {
	 [self down_remove_blank:model];
	 [self down:model];
	}
	
	- (void)caculateLeft:(DataModel *)model {
	 [self left_remove_blank:model];
	 [self left:model];
	}
	
	- (void)caculateRight:(DataModel *)model {
	 [self right_remove_blank:model];
	 [self right:model];
	}
	
	- (int)getAddScore {
	 int temp = _addScore;
	 _addScore = 0;
	 return temp;
	}
	
	#pragma mark - 新一个
	- (BOOL)randNewOne:(DataModel *)model {
	 array data = [model getData];
	 int all = 0;
	 for (int i=0; i<model.matrix; i++) {
	 for (int j=0; j<model.matrix; j++) {
	 if (data[i][j] == 0) {
	 all = all + 1;
	 }
	 }
	 }
	 if (all == 0) {
	 return NO;
	 }
	 int index = arc4random() % all;
	 all = 0;
	 for (int i=0; i<model.matrix; i++) {
	 for (int j=0; j<model.matrix; j++) {
	 if (data[i][j] == 0) {
	 all = all + 1;
	 if (all == index+1) {
	 data[i][j] = 2;
	 return YES;
	 }
	 }
	 }
	 }
	 return NO;
	}
	
	#pragma mark - 滑动算法
	- (void)up_remove_blank:(DataModel *)model {
	 array data = [model getData];
	 int i,j,k;
	 for(j=0;j < model.matrix;j++){
	 for(i=1;i < model.matrix;i++){
	 k=i;
	 while(k-1>=0&&data[k-1][j]==0){//上面的那个为空
	 //swap(data[k][j],data[k-1][j]);
	 int temp = data[k][j];
	 data[k][j] = data[k-1][j];
	 data[k-1][j] = temp;
	 k--;
	 }
	 }
	 }
	}
	
	- (void)down_remove_blank:(DataModel *)model {
	 array data = [model getData];
	 int i,j,k;
	 for(j=0; j < model.matrix; j++){
	 for(i = model.matrix-2; i >= 0; i--){
	 k=i;
	 while(k+1<=model.matrix-1&&data[k+1][j]==0){//上面的那个为空
	 //swap(a[k][j],a[k][j]);
	 int temp = data[k][j];
	 data[k][j] = data[k+1][j];
	 data[k+1][j] = temp;
	 k++;
	 }
	 }
	 }
	}
	
	- (void)left_remove_blank:(DataModel *)model {
	 array data = [model getData];
	 int i,j,k;
	 for(i=0;i < model.matrix;i++){
	 for(j=1;j<model.matrix;j++){
	 k=j;
	 while(k-1>=0&&data[i][k-1]==0){//上面的那个为空
	 //swap(a[i][k],a[i][k-1]);
	 int temp = data[i][k];
	 data[i][k] = data[i][k-1];
	 data[i][k-1] = temp;
	 k--;
	 }
	 }
	 }
	}
	- (void)right_remove_blank:(DataModel *)model {
	 array data = [model getData];
	 int i,j,k;
	 for(i=0;i<model.matrix;i++){
	 for(j=model.matrix-2;j>=0;j--){
	 k=j;
	 while(k+1<=model.matrix-1&&data[i][k+1]==0){//上面的那个为空
	 //swap(a[i][k],a[i][k+1]);
	 int temp = data[i][k];
	 data[i][k] = data[i][k+1];
	 data[i][k+1] = temp;
	 k++;
	 }
	 }
	 }
	}
	- (void)left:(DataModel *)model {
	 array data = [model getData];
	 int i,j;
	 for(i=0;i<model.matrix;i++){
	 for(j=0;j<model.matrix-1;j++){
	 if(data[i][j]==data[i][j+1]){
	 _addScore = _addScore + data[i][j];
	 data[i][j]+=data[i][j+1];
	 data[i][j+1]=0;
	 [self left_remove_blank:model];
	 }
	 }
	 }
	}
	- (void)right:(DataModel *)model {
	 array data = [model getData];
	 int i,j;
	 for(i=0;i<model.matrix;i++){
	 for(j=model.matrix-1;j>=1;j--){
	 if(data[i][j]==data[i][j-1]){
	 _addScore = _addScore + data[i][j];
	 data[i][j]+=data[i][j-1];
	 data[i][j-1]=0;
	 [self right_remove_blank:model];
	 }
	 }
	 }
	}
	- (void)up:(DataModel *)model {
	 array data = [model getData];
	 int i,j;
	 for(j=0;j<model.matrix;j++){//每一列
	 for(i=0;i<model.matrix-1;i++){
	 if(data[i][j]==data[i+1][j]){
	 _addScore = _addScore + data[i][j];
	 data[i][j]=data[i][j]+data[i+1][j];
	 data[i+1][j]=0;
	 //移除空格
	 [self up_remove_blank:model];
	 }
	 }
	 }
	}
	- (void)down:(DataModel *)model {
	 array data = [model getData];
	 int i,j;
	 for(j=0;j<model.matrix;j++){//每一列
	 for(i=model.matrix-1;i>=1;i--){
	 if(data[i][j]==data[i-1][j]){
	 _addScore = _addScore + data[i][j];
	 data[i][j]=data[i][j]+data[i-1][j];
	 data[i-1][j]=0;
	 //移除空格
	 [self down_remove_blank:model];
	 }
	 }
	 }
	}
	
	
	@end
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