断断续续自学了很久，没方向感。这几天写的垃圾2048，望指教需要通过学哪些东西来优化。
以这代码为例，如果想代码更清晰易懂，界面更美观，更友好，要编成类似手机上的《全民2048》那样需要学哪些，怎么学？
程序代码：
/* 2048 */
/*方向键控制上下左右*/
#include <stdio.h>
#include <stdlib.h> //包含生成随机数函数rand()
#include <time.h> //为生成随机数提供种子
#include <conio.h> //包含getch()
#include "windows.h"
int shenchen (void); //生成随机数为2或者4
void zuobiao (int pa[][4]); //生成坐标，并填入数字
int pandan(const int a[][4], int ch); //判断用户选择的方向是否合法
int gameover (const int a[][4]); //判断游戏结束
void display(const int a[][4]);
void w(int a[][4]);
void s(int a[][4]);
void a(int a[][4]);
void d(int a[][4]);
void display(const int a[][4])
{
int i, j;
for (i = 0; i < 4; i++)
{
puts("|-----+-----+-----+-----|");
printf("|");
for (j = 0; j < 4; j++)
if (a[i][j] == 0)
{
printf("%5c", ' ');
printf("|");
}
else
{
printf("%5d", a[i][j]);
printf("|");
}
printf("\n");
if (i == 3)
puts("|-----+-----+-----+-----|");
}
}
void zuobiao (int pa[][4])
{
int x, y, i, j;
int t = 0;
//判断是否有空位
for (i = 0; i < 4; i++)
{
for (j = 0; j < 4; j++)
if (pa[i][j] == 0)
t = 1;
if (t)
break;
}
if (t)
{
do
{
x = rand() % 4;
y = rand() % 4;
}
while(pa[x][y] != 0); //是否会出现坐标对应的值永远不等于0？？
pa[x][y] = shenchen();
}
}
int shenchen (void)
{
int i;
i = rand() % 10;
if (i / 2 == 0)
i = 4;
else
i = 2;
return i;
}
int main (void)
{
int b[4][4] = {0}; //模拟4X4界面
int ch; //存储用户输入的字符
srand((unsigned)time(0)); //随机函数
zuobiao(b);
zuobiao(b);
display(b);
while ((ch = getch()) != 27)
{
if (!pandan(b, ch))
ch = 'q';
switch (ch)
{
case 72 : w(b);
zuobiao (b);
break;
case 80 : s(b);
zuobiao (b);
break;
case 75 : a(b);
zuobiao (b);
break;
case 77 : d(b);
zuobiao (b);
break;
}
if (!gameover(b))
{
printf ("游戏结束");
break;
}
Sleep(200);
system("CLS"); //清屏
display(b);
}
return 0;
}
void w (int a[][4])
{
int i, j, k;
//将4x4数组中不为0的数全部向上移
for (j = 0; j < 4; j++)
for (i = 0; i < 3; i++)
for (k = i+1; k < 4; k++)
if (a[i][j] == 0 && a[k][j] != 0)
{
a[i][j] = a[k][j];
a[k][j] = 0;
}
//将同一个方向上相同的按顺序相加
j = 0;
while (j < 4)
{
if (a[0][j] == a[1][j])
{
a[0][j] *= 2;
a[1][j] = 0;
if (a[2][j] == a[3][j])
{
a[1][j] = 2 * a[2][j];
a[2][j] = a[3][j] = 0;
}
else
{
a[1][j] = a[2][j];
a[2][j] = a[3][j];
a[3][j] = 0;
}
}
else if (a[1][j] == a[2][j])
{
a[1][j] *= 2;
a[2][j] = a[3][j];
a[3][j] = 0;
}
else if (a[2][j] == a[3][j])
{
a[2][j] *= 2;
a[3][j] = 0;
}
j++;
}
}
void s (int a[][4])
{
int i, j, k;
//将4x4数组中不为0的数全部向上移
for (j = 0; j < 4; j++)
for (i = 3; i > 0; i--)
for (k = i-1; k >= 0; k--)
if (a[i][j] == 0 && a[k][j] != 0)
{
a[i][j] = a[k][j];
a[k][j] = 0;
}
//将同一个方向上相同的按顺序相加
j = 3;
while (j >= 0)
{
if (a[3][j] == a[2][j])
{
a[3][j] *= 2;
a[2][j] = 0;
if (a[1][j] == a[0][j])
{
a[2][j] = 2 * a[1][j];
a[1][j] = a[0][j] = 0;
}
else
{
a[2][j] = a[1][j];
a[1][j] = a[0][j];
a[0][j] = 0;
}
}
else if (a[2][j] == a[1][j])
{
a[2][j] *= 2;
a[1][j] = a[0][j];
a[0][j] = 0;
}
else if (a[1][j] == a[0][j])
{
a[1][j] *= 2;
a[0][j] = 0;
}
j--;
}
}
void a (int a[][4])
{
int i, j, k;
for (i = 0; i < 4; i++)
for (j = 0; j < 3; j++)
for (k = j+1 ; k < 4; k++)
if (a[i][j] == 0 && a[i][k] != 0)
{
a[i][j] = a[i][k];
a[i][k] = 0;
}
i = 0;
while (i < 4)
{
if (a[i][0] == a[i][1])
{
a[i][0] *= 2;
a[i][1] = 0;
if (a[i][2] == a[i][3])
{
a[i][1] = 2 * a[i][2];
a[i][2] = a[i][3] = 0;
}
else
{
a[i][1] = a[i][2];
a[i][2] = a[i][3];
a[i][3] = 0;
}
}
else if (a[i][1] == a[i][2])
{
a[i][1] *= 2;
a[i][2] = a[i][3];
a[i][3] = 0;
}
else if (a[i][2] == a[i][3])
{
a[i][2] *= 2;
a[i][3] = 0;
}
i++;
}
}
void d (int a[][4])
{
int i, j, k;
for (i = 0; i < 4; i++)
for (j = 3; j > 0; j--)
for (k = j-1 ; k >= 0; k--)
if (a[i][j] == 0 && a[i][k] != 0)
{
a[i][j] = a[i][k];
a[i][k] = 0;
}
i = 3;
while (i >= 0)
{
if (a[i][2] == a[i][3])
{
a[i][3] *= 2;
a[i][2] = 0;
if (a[i][0] == a[i][1])
{
a[i][2] = 2 * a[i][1];
a[i][1] = a[i][0] = 0;
}
else
{
a[i][2] = a[i][1];
a[i][1] = a[i][0];
a[i][0] = 0;
}
}
else if (a[i][1] == a[i][2])
{
a[i][2] *= 2;
a[i][1] = a[i][0];
a[i][0] = 0;
}
else if (a[i][0] == a[i][1])
{
a[i][1] *= 2;
a[i][0] = 0;
}
i--;
}
}
int pandan (const int a[][4], int ch)
{
int i, j, t;
switch (ch)
{
case 72 :
for (j = 0; j < 4; j++)
{
for (i = 0; i < 3; i++)
{
if (a[i][j] == 0)
if(a[i+1][j] > 0)
t = 1;
else
t = 0;
else
if(a[i+1][j] == a[i][j])
t = 1;
else
t = 0;
if (t == 1)
break;
}
if (t == 1)
break;
}
break;
case 80 :
for (j = 0; j < 4; j++)
{
for (i = 3; i > 0; i--)
{
if (a[i][j] == 0)
if(a[i-1][j] > 0)
t = 1;
else
t = 0;
else
if(a[i-1][j] == a[i][j])
t = 1;
else
t = 0;
if (t == 1)
break;
}
if (t == 1)
break;
}
break;
case 75 :
for (i = 0; i < 4; i++)
{
for (j = 0; j < 3; j++)
{
if (a[i][j] == 0)
if(a[i][j+1] > 0)
t = 1;
else
t = 0;
else
if(a[i][j+1] == a[i][j])
t = 1;
else
t = 0;
if (t == 1)
break;
}
if (t == 1)
break;
}
break;
case 77 :
for (i = 0; i < 4; i++)
{
for (j = 3; j > 0; j--)
{
if (a[i][j] == 0)
if(a[i][j-1] > 0)
t = 1;
else
t = 0;
else
if(a[i][j-1] == a[i][j])
t = 1;
else
t = 0;
if (t == 1)
break;
}
if (t == 1)
break;
}
break;
default : t = 0;
}
return t;
}
int gameover (const int a[][4])
{
int i, j;
for (i = 0; i < 4; i++)
for (j = 0; j < 4; j++)
if (a[i][j] == 0)
return 1;
for (i = 0; i < 4; i++)
for (j = 0; j < 3; j++)
if (a[i][j] == a[i][j+1])
return 1;
for (i = 0; i < 4; i++)
for (j = 0; j < 3; j++)
if (a[j][i] == a[j+1][i])
return 1;
return 0;
}
