1 #include <stdio.h>
2 #include <windows.h>
3 #include <conio.h>
4
5 typedef
struct
6 {
7 int x;
8 int y;
9 }CursorPos;
10
11 int Max_X =
0;
// 画布行大小，为清屏做准备
12 int Max_Y =
0;
// 画布列大小，为清屏做准备
13
14 void HideCursor(HANDLE hOutput);
15 void GotoXy(HANDLE hOutput,
int x,
int y);
16 int GetMousePos(CursorPos *
cr);
17 int GetKeyPress(HANDLE hOutput,
char *
choice);
18 void ShowUsage(HANDLE hOutput);
19 void InitScreen(HANDLE hOutput);
20 void ReadFile(HANDLE hOutput);
21 void SaveFile(HANDLE hOutput);
22
23 int main(
void)
24 {
25 char choice=
1;
26 FILE * fp;
// 打开文件
27 CursorPos cursor;
// 鼠标单击的逻辑坐标
28 HANDLE hOutput =
GetStdHandle(STD_OUTPUT_HANDLE);
29 SetConsoleTitle(
"控制台画图游戏");
30 HideCursor(hOutput);
31 ShowUsage(hOutput);
32
33 if((fp=fopen(
"draw.txt",
"r"))==NULL)
// 新建文件
34 fp=fopen(
"draw.txt",
"w");
35 fclose(fp);
36
37 while(
1)
38 {
39 if(GetMousePos(&
cursor))
40 {
41 GotoXy(hOutput, cursor.x,cursor.y);
42 printf(
"%c",choice);
43 }
44 GetKeyPress(hOutput, &
choice);
45 }
46 return 0;
47 }
48 int GetMousePos(CursorPos *
cursor)
49 {
50 HANDLE hInput =
GetStdHandle(STD_INPUT_HANDLE);
51 INPUT_RECORD inRec;
52 DWORD res;
53
54 ReadConsoleInput(hInput, &inRec,
1, &
res);
55 if (inRec.EventType == MOUSE_EVENT && inRec.Event.MouseEvent.dwButtonState == FROM_LEFT_1ST_BUTTON_PRESSED)
//鼠标左键
56 {
57 cursor->x =
inRec.Event.MouseEvent.dwMousePosition.X;
58 if(cursor->x >
Max_X)
59 Max_X = cursor->
x;
60 cursor->y =
inRec.Event.MouseEvent.dwMousePosition.Y;
61 if(cursor->y >
Max_Y)
62 Max_Y = cursor->
y;
63
64 return 1;
65 }
66 return 0;
67 }
68 int GetKeyPress(HANDLE hOutput,
char *
choice)
69 {
70 HANDLE hInput =
GetStdHandle(STD_INPUT_HANDLE);
71 INPUT_RECORD inRec;
72 DWORD res;
73 ReadConsoleInput(hInput, &inRec,
1, &
res);
74
75 if(inRec.EventType ==
KEY_EVENT)
76 {
77 switch(inRec.Event.KeyEvent.wVirtualKeyCode)
78 {
79 case VK_ESCAPE : InitScreen(hOutput);
break;
80 case VK_CONTROL : ReadFile(hOutput);
break;
81 case VK_MENU : SaveFile(hOutput);
break;
82 default : * choice =
inRec.Event.KeyEvent.uChar.AsciiChar;
83 }
84 return 1;
85 }
86 return 0;
87 }
88
89 void HideCursor(HANDLE hOutput)
90 {
91 CONSOLE_CURSOR_INFO cursor_info = {
1,
0};
92 SetConsoleCursorInfo(hOutput, &
cursor_info);
93 }
94
95 /**********移动光标至(x,y)处************/
96 void GotoXy(HANDLE hOutput,
int x,
int y)
97 {
98 COORD CursorPosd;
99 CursorPosd.X =
x;
100 CursorPosd.Y =
y;
101 SetConsoleCursorPosition(hOutput, CursorPosd);
102 }
103
104 /**************显示用法*****************/
105 void ShowUsage(HANDLE hOutput)
106 {
107 printf(
"用法：\n");
108 printf(
"一、按住键盘按键和鼠标左键可以改变笔触类型\n");
109 printf(
"二、按下 ESC 键清空屏幕\n");
110 printf(
"三、按下 CTRL 键打开文件\n");
111 printf(
"四、按下 ALT 键保存文件(尚未实现)\n");
112 printf(
"按任意键开始画图。");
113 Max_X =
45;
114 Max_Y =
6;
115 getch();
116 InitScreen(hOutput);
117 }
118
119 /**************清屏函数*****************/
120 void InitScreen(HANDLE hOutput)
121 {
122 int i,j;
123 GotoXy(hOutput,
0,
0);
124 for(j=
0;j<=Max_Y;j++
)
125 {
126 for(i=
0;i<=Max_X;i++
)
127 printf(
" ");
128 printf(
"\n");
129 }
130 Max_X = Max_Y =
0;
131 }
132
133 void ReadFile(HANDLE hOutput)
134 {
135 FILE *
fp;
136 char c;
137 GotoXy(hOutput,
0,
0);
138 fp=fopen(
"draw.txt",
"r");
139 fscanf(fp,
"%c",&
c);
140 printf(
"%c",c);
141 }
142
143 void SaveFile(HANDLE hOutput)
144 {
145 FILE *
fp;
146 char c;
147 int i,j;
148 GotoXy(hOutput,
0,
0);
149 fp=fopen(
"draw.txt",
"w");
150
151 fclose(fp);
152 }
转载于:https://www.cnblogs.com/doodle777/p/3154445.html
