{"topic":{"id":1439,"title":"如何读取多指令，使得人物斜向移动。","slug":"topic","userId":277,"categoryId":4,"createdAt":"2023-06-24 07:24:50.085851","bumpedAt":"2023-06-24 08:15:19.354839","views":272,"postsCount":5,"highestPostNumber":5,"likeCount":1,"closed":false,"pinned":false,"pinnedGlobally":false,"pinnedAt":null,"pinnedUntil":null,"isBanner":false,"excerpt":"本人用的是 easyx 图形库 vs2022，起初是想用 getch() 读取，结果发现读取一个信号后就只会有一个信号。 #include<stdio.h> #include<graphics.h> #include<conio.h> #include <math.h> #define x1Speed 1 #define y1Speed 1 struct Player { int x=0;…","deletedAt":null,"isAnonymous":false,"isPrivate":false,"isMembersOnly":false,"category":{"id":4,"name":"谈笑风生","slug":"general","color":"25AAE2"},"author":{"id":277,"username":"Eureka","name":null,"avatarUrl":"/uploads/image/72/f8/72f88e8a911d16188aaa5d0d6508f2dc3703eb07a08e4b9ebd126081e597181c.avif"},"realAuthor":{"id":277,"username":"Eureka","name":null,"avatarUrl":"/uploads/image/72/f8/72f88e8a911d16188aaa5d0d6508f2dc3703eb07a08e4b9ebd126081e597181c.avif"},"tags":[]},"posts":[{"id":3345,"postNumber":1,"raw":"本人用的是 easyx 图形库 vs2022，起初是想用 getch() 读取，结果发现读取一个信号后就只会有一个信号。\n\n```c\n#include\n#include\n#include\n#include \n\n#define x1Speed 1\n#define y1Speed 1\n\nstruct Player {\n\tint x=0;\n\tint y=0;\n}player1;\n\nvoid initPlayer();\nvoid player1Move(char m);\n\nint main()\n{\n\tinitgraph(1048, 720);\n\tinitPlayer();\n\n\tsetbkcolor(RED);\n\tsetfillcolor(BLUE);\n\n\tcleardevice();\n\tcircle(player1.x, player1.y, 3);\n\n\n\twhile (1) {\n\t\tplayer1Move(_getch());\n\n\t\tplayer1Move(_kbhit());\n\t}\n\t//关闭窗口，closegraph();\n\treturn 0;\n}\n//位置坐标初始化\nvoid initPlayer() {\n\tplayer1.x = 500;\n\tplayer1.y = 500;\n}\n\n//人物移动 z\nvoid player1Move(char m) {\n\tif (m == 'd') {\n\t\tplayer1.x += x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.x += x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.x += x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\telse if (m == 'a') {\n\t\tplayer1.x -= x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.x -= x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.x -= x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\telse if (m == 'w') {\n\t\tplayer1.y -= y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.y -= y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.y -= y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\telse if (m == 's') {\n\t\tplayer1.y += y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.y += y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.y += y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\telse if (m == 'z') {\n\t\tclosegraph();\n\t\texit(0);\n\t}\n}\n```","cooked":"

本人用的是 easyx 图形库 vs2022，起初是想用 getch() 读取，结果发现读取一个信号后就只会有一个信号。

#include<stdio.h>\n#include<graphics.h>\n#include<conio.h>\n#include <math.h>\n\n#define x1Speed 1\n#define y1Speed 1\n\nstruct Player {\n\tint x=0;\n\tint y=0;\n}player1;\n\nvoid initPlayer();\nvoid player1Move(char m);\n\nint main()\n{\n\tinitgraph(1048, 720);\n\tinitPlayer();\n\n\tsetbkcolor(RED);\n\tsetfillcolor(BLUE);\n\n\tcleardevice();\n\tcircle(player1.x, player1.y, 3);\n\n\n\twhile (1) {\n\t\tplayer1Move(_getch());\n\n\t\tplayer1Move(_kbhit());\n\t}\n\t//关闭窗口，closegraph();\n\treturn 0;\n}\n//位置坐标初始化\nvoid initPlayer() {\n\tplayer1.x = 500;\n\tplayer1.y = 500;\n}\n\n//人物移动 z\nvoid player1Move(char m) {\n\tif (m == 'd') {\n\t\tplayer1.x += x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.x += x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.x += x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\telse if (m == 'a') {\n\t\tplayer1.x -= x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.x -= x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.x -= x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\telse if (m == 'w') {\n\t\tplayer1.y -= y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.y -= y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.y -= y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\telse if (m == 's') {\n\t\tplayer1.y += y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.y += y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t\tplayer1.y += y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\telse if (m == 'z') {\n\t\tclosegraph();\n\t\texit(0);\n\t}\n}\n

\n","createdAt":"2023-06-24 07:24:50.349007","updatedAt":"2023-06-24 07:51:25.97846","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":229,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":2,"publicVersion":2,"deletedAt":null,"isAnonymous":false,"user":{"id":277,"username":"Eureka","name":null,"avatarUrl":"/uploads/image/72/f8/72f88e8a911d16188aaa5d0d6508f2dc3703eb07a08e4b9ebd126081e597181c.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":3351,"postNumber":2,"raw":"可以把代码放在一对 ``` 包裹的代码块里面以获得高亮:\n````\n```c\n#include\n```\n````\n\n在第一个 ``` 后面加语言名，比如这里是 C 那就用``\\`c。","cooked":"

可以把代码放在一对 ``` 包裹的代码块里面以获得高亮:

```c\n#include<stdio.h>\n```\n

在第一个 ``` 后面加语言名，比如这里是 C 那就用```c。

\n","createdAt":"2023-06-24 07:54:02.38588","updatedAt":"2024-03-17 03:58:44.698755","replyToPostNumber":null,"replyCount":1,"likeCount":0,"wordCount":51,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":3,"publicVersion":3,"deletedAt":null,"isAnonymous":false,"user":{"id":1047,"username":"anonymous_coward_old","name":"Anonymous Coward Old","avatarUrl":"/uploads/image/43/32/4332638c11248b8ff07033c11de0759a55205facfbec85e14458245a91991faf.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":3352,"postNumber":3,"raw":"感谢！ :rose:","cooked":"

感谢！ 🌹

\n","createdAt":"2023-06-24 07:57:42.034055","updatedAt":"2023-06-24 07:57:42.034055","replyToPostNumber":2,"replyCount":0,"likeCount":0,"wordCount":4,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":277,"username":"Eureka","name":null,"avatarUrl":"/uploads/image/72/f8/72f88e8a911d16188aaa5d0d6508f2dc3703eb07a08e4b9ebd126081e597181c.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":3353,"postNumber":4,"raw":"你现在的代码中使用 `_getch()` 来获取单个按键输入，如果你希望实现多按键的斜向移动，可能需要使用键盘状态来实现，`GetKeyboardState`是一个可以考虑的方法。该方法将返回键盘的状态，包括哪个键被按下。在 Windows 下，可以使用 ``库中的`GetAsyncKeyState` 函数来获取键盘按键的状态。\n\n为了使代码更易读，可以定义几个变量来代表键盘的状态。例如，如果“w”被按下，则 `wPressed`为`true`，否则为`false`。同样，`aPressed`，`sPressed`和`dPressed` 也可以表示其他按键的状态。\n\n以下是对你的代码进行的一些修改，使其可以处理多个按键同时按下的情况：\n\n```\n#include \n#include \n#include \n#include \n#include \n\n#define x1Speed 1\n#define y1Speed 1\n\nstruct Player {\n\tint x = 0;\n\tint y = 0;\n}player1;\n\nvoid initPlayer();\nvoid player1Move();\n\nint main()\n{\n\tinitgraph(1048, 720);\n\tinitPlayer();\n\n\tsetbkcolor(RED);\n\tsetfillcolor(BLUE);\n\n\tcleardevice();\n\tcircle(player1.x, player1.y, 3);\n\n\twhile (1) {\n\t\tplayer1Move();\n\t}\n\n\treturn 0;\n}\n\nvoid initPlayer() {\n\tplayer1.x = 500;\n\tplayer1.y = 500;\n}\n\nvoid player1Move() {\n\tif (GetAsyncKeyState('D')) {\n\t\tplayer1.x += x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\tif (GetAsyncKeyState('A')) {\n\t\tplayer1.x -= x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\tif (GetAsyncKeyState('W')) {\n\t\tplayer1.y -= y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\tif (GetAsyncKeyState('S')) {\n\t\tplayer1.y += y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\tif (GetAsyncKeyState('Z')) {\n\t\tclosegraph();\n\t\texit(0);\n\t}\n}\n\n```\n\n请注意，`GetAsyncKeyState` 函数会检查某键是否被按下，不管它在调用函数之前或之后是否已被释放。这就是为什么它可以处理多个按键同时按下的情况。\n\n另外需要注意的是，`GetAsyncKeyState`函数的参数是键盘按键的虚拟键码。因为键码是大小写敏感的，所以需要按照键码大小写敏感的特点来设置按键。例如，`GetAsyncKeyState('A')`表示按下\"A\"键，而 `GetAsyncKeyState('a')` 表示按下\"a\"键。","cooked":"

你现在的代码中使用 _getch() 来获取单个按键输入，如果你希望实现多按键的斜向移动，可能需要使用键盘状态来实现，GetKeyboardState是一个可以考虑的方法。该方法将返回键盘的状态，包括哪个键被按下。在 Windows 下，可以使用 <windows.h>库中的GetAsyncKeyState 函数来获取键盘按键的状态。

为了使代码更易读，可以定义几个变量来代表键盘的状态。例如，如果“w”被按下，则 wPressed为true，否则为false。同样，aPressed，sPressed和dPressed 也可以表示其他按键的状态。

以下是对你的代码进行的一些修改，使其可以处理多个按键同时按下的情况：

#include <windows.h>\n#include <stdio.h>\n#include <graphics.h>\n#include <conio.h>\n#include <math.h>\n\n#define x1Speed 1\n#define y1Speed 1\n\nstruct Player {\n\tint x = 0;\n\tint y = 0;\n}player1;\n\nvoid initPlayer();\nvoid player1Move();\n\nint main()\n{\n\tinitgraph(1048, 720);\n\tinitPlayer();\n\n\tsetbkcolor(RED);\n\tsetfillcolor(BLUE);\n\n\tcleardevice();\n\tcircle(player1.x, player1.y, 3);\n\n\twhile (1) {\n\t\tplayer1Move();\n\t}\n\n\treturn 0;\n}\n\nvoid initPlayer() {\n\tplayer1.x = 500;\n\tplayer1.y = 500;\n}\n\nvoid player1Move() {\n\tif (GetAsyncKeyState('D')) {\n\t\tplayer1.x += x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\tif (GetAsyncKeyState('A')) {\n\t\tplayer1.x -= x1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\tif (GetAsyncKeyState('W')) {\n\t\tplayer1.y -= y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\tif (GetAsyncKeyState('S')) {\n\t\tplayer1.y += y1Speed;\n\t\tcircle(player1.x, player1.y, 3);\n\t}\n\tif (GetAsyncKeyState('Z')) {\n\t\tclosegraph();\n\t\texit(0);\n\t}\n}\n\n

请注意，GetAsyncKeyState 函数会检查某键是否被按下，不管它在调用函数之前或之后是否已被释放。这就是为什么它可以处理多个按键同时按下的情况。

另外需要注意的是，GetAsyncKeyState函数的参数是键盘按键的虚拟键码。因为键码是大小写敏感的，所以需要按照键码大小写敏感的特点来设置按键。例如，GetAsyncKeyState('A')表示按下\"A\"键，而 GetAsyncKeyState('a') 表示按下\"a\"键。

\n","createdAt":"2023-06-24 08:03:21.085973","updatedAt":"2023-06-24 08:03:21.085973","replyToPostNumber":null,"replyCount":1,"likeCount":1,"wordCount":456,"liked":false,"bookmarked":false,"polls":[],"reactions":[{"reaction":"❤️","count":1,"users":[{"id":1047,"username":"anonymous_coward_old","name":"Anonymous Coward Old"}],"hasReacted":false}],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":423,"username":"chatgpt","name":"ChatGPT","avatarUrl":"/uploads/image/88/84/888404ace3821613b580f5661e93ef148083eb26219756f1d21ed4eef438d369.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":3354,"postNumber":5,"raw":"好了好了 :+1:","cooked":"

好了好了 👍️

\n","createdAt":"2023-06-24 08:15:19.354839","updatedAt":"2023-06-24 08:15:19.354839","replyToPostNumber":4,"replyCount":0,"likeCount":0,"wordCount":5,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":277,"username":"Eureka","name":null,"avatarUrl":"/uploads/image/72/f8/72f88e8a911d16188aaa5d0d6508f2dc3703eb07a08e4b9ebd126081e597181c.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}}],"hasMore":false,"lastReadPostNumber":3,"hasUrlPostNumber":true}