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本文详述了C语言版坦克大战游戏的原理以及实现方法,对游戏代码进行了详细的分析和注释,通过本文能够让大家对WIN32编程框架有一个大致了解,对C语言运用有一定提高,同时也能给大家提供一个C语言小游戏编程的思路,也能完全够通过自己的实力去编写一个属于自己的游戏.
游戏体验
坦克大战游戏代码框架如下
在 main.c 中,创建应用窗口,并初始化一些系统资源,然后初始化gdi,初始化坦克大战游戏.
在 gdi.c 中,对系统的HDC及绘图接口进行了一次封装,使用WIN32系统提供的绘图接口来实现我们自己的图形绘制API.这里使用到了双缓冲技术,下文会简单介绍.
在 Tank.c 中,实现了坦克大战的游戏逻辑,包括贴图系统,地图系统,坦克制造,炮弹制造,装备生成,坦克移动,炮弹移动,以及坦克被炮弹击中,坦克吃到装备,等等.
下面将对代码进行详细的分析.
在 main.c 中,创建应用窗口,并初始化一些系统资源,然后初始化gdi,初始化坦克大战游戏.
//主函数
int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
_In_opt_ HINSTANCE hPrevInstance,
_In_ LPWSTR lpCmdLine,
_In_ int nCmdShow)
{
//注册窗口类,创建窗口,初始化等:
MyRegisterClass(hInstance);
InitInstance(hInstance, nCmdShow);
//显示初始化及游戏初始化
gdi_init(hWnd);
tank_init();
//创建坦克大战运行线程
hTankRunT = CreateThread(NULL, 0, TankRun, NULL, 0, &dwTankRunTId);
//快捷键
hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_GAMETANK));
// 主消息循环:
while (GetMessage(&msg, NULL, 0, 0))
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
//TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return (int)msg.wParam;
}
//目的: 注册窗口类。
ATOM MyRegisterClass(HINSTANCE hInstance)
{
WNDCLASSEXW wcex;
......
wcex.lpfnWndProc = WndProc;//绑定窗口消息处理函数
......
return RegisterClassEx(&wcex);//注册窗口类
}
//目的: 保存实例句柄并创建主窗口
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
hInst = hInstance; // 将实例句柄存储在全局变量中
......
hWnd = CreateWindow(......);//无窗口创建数据
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
return TRUE;
}
//目的: 处理主窗口的消息。
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
......
switch (message)
{
case WM_COMMAND:
{
// 分析菜单选择:
switch (wmId)
{
case IDM_ABOUT: //关于
GAME_CTRL.run = FALSE;//点击对话框的时候暂停
DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
break;
case IDM_README: //说明
GAME_CTRL.run = FALSE;//点击对话框的时候暂停
DialogBox(hInst, MAKEINTRESOURCE(IDD_READMEBOX), hWnd, Readme);
break;
case IDM_EXIT://退出
DestroyWindow(hWnd);
break;
......
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
}
break;
case WM_PAINT:
{
hdc = BeginPaint(hWnd, &ps);
// TODO: 在此处添加使用 hdc 的任何绘图代码...
gdi_update();
EndPaint(hWnd, &ps);
}
break;
case WM_DESTROY:
gdi_dinit();
PostQuitMessage(0);
break;
case WM_KEYDOWN:
switch (wParam)
{
case VK_UP://上
GAME_CTRL.dir = DIR_UP;
break;
case VK_DOWN://下
GAME_CTRL.dir = DIR_DOWN;
break;
case VK_LEFT://左
GAME_CTRL.dir = DIR_LEFT;
break;
case VK_RIGHT://右
GAME_CTRL.dir = DIR_RIGHT;
break;
case VK_RETURN://回车键开火
GAME_CTRL.fire = TRUE;
break;
......
default:
break;
}
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
//游戏运行线程
DWORD WINAPI TankRun(LPVOID lpProgram)
{
while (TRUE)
{
if (GAME_CTRL.run)//暂停游戏
{
if (GAME_CTRL.auto_fire != FALSE)
{
// GameTankDir = ((i++) % DIR_MAX);
GAME_CTRL.fire = TRUE;
}
if (tank_run(&(GAME_CTRL.dir), &(GAME_CTRL.fire)/*, GAME_CTRL.difficult*/) != RTN_OK)
{
//DEBUG_LOG("ERR");
MessageBox(/*NULL*/hWnd, TEXT("你输了!"), TEXT("你输了!"), MB_OK);
GameCtrlInit();
tank_init();
}
Sleep(1 + GAME_CTRL.speed);
}
}
return 0;
}在 gdi.c 中,对系统的HDC及绘图接口进行了一次封装,使用WIN32系统提供的绘图接口来实现我们自己的图形绘制API.这里使用到了双缓冲技术.
坦克大战的每一次运行,坦克和炮弹的每一次移动,我们都要不断的清除屏幕上原来的内容,然后重新绘制新的内容,假如我们每一次更改显示内容都直接调用WIN32的api实时的刷新到屏幕上,一旦游戏运行速度很快的时候,就会造成屏幕上的内容一直在闪烁,非常影响游戏体验.
双缓冲技术主要是为了解决坦克大战实时刷新造成的屏幕闪烁问题.其原理就是,加入地图上共有10辆坦在战斗,每辆坦克都在移动,每移动一步我们都需要重新计算并显示10辆坦克的位置,但是我们不必在计算每一辆坦克的时候都把他刷新到屏幕上,而是先把这辆坦克绘制到内存上,等到所有的坦克都计算并完成移动之后,再同一把内存上的内容刷新到屏幕上,这样做就大大减少了刷新屏幕的次数,也就可以避免实时刷新造成的屏幕闪烁问题.
更详细的介绍,请参考下面这篇文章:
#include "Gdi.h"
HPEN hGdiPen = NULL; //画笔
HBRUSH hGdiBrush = NULL; //画刷
HDC mGdiHdc; //内存设备(双缓冲技术)
HDC hGdiHdc; //硬件设备
HWND hGdiWnd; //窗口
RECT hGdiWndRect; //窗口客户区大小
HBITMAP mGdiBmp;
HBITMAP mGdiBmpOld;
#define maxX SCREEN_X
#define maxY SCREEN_Y
static void _gdi_clr_pencol(HPEN _hGdiPen)
{
DeleteObject(_hGdiPen);//释放资源
SelectObject(mGdiHdc, hGdiPen);//恢复初始画刷
}
static HPEN _gdi_set_pencol(int32 color)
{
HPEN _hGdiPen;
COLORREF color_t = (COLORREF)color;
_hGdiPen = CreatePen(PS_SOLID, 1, color_t);//画笔
hGdiPen = SelectObject(mGdiHdc, _hGdiPen);//为缓存DC选择画笔
return _hGdiPen;
}
static void _gdi_clr_brushcol(HBRUSH _hGdiBrush)
{
DeleteObject(_hGdiBrush);//释放资源
SelectObject(mGdiHdc, hGdiBrush);//恢复初始画刷
}
static HBRUSH _gdi_set_brushcol(int32 color)
{
HBRUSH _hGdiBrush;
COLORREF color_t = (COLORREF)color;
_hGdiBrush = CreateSolidBrush(color_t);//画刷
hGdiBrush = SelectObject(mGdiHdc, _hGdiBrush);//为缓存DC选择画刷
return _hGdiBrush;
}
/*
* gdi_clear:
* Clear the display to the given colour.
*******************************************************************************
*/
void gdi_clear(int32 colour)
{
gdi_rectangle(0, 0, maxX, maxY, colour, TRUE);
}
/*
* gdi_set_point:
* Plot a pixel.
*******************************************************************************
*/
void gdi_set_point(int32 x, int32 y, int32 colour)
{
x = ((x < 0) ? 0 : ((x > (maxX - 1)) ? (maxX - 1) : x));
y = ((y < 0) ? 0 : ((y > (maxY - 1)) ? (maxY - 1) : y));
HPEN hPen = _gdi_set_pencol(colour);
SetPixel(mGdiHdc, x, y, colour);
_gdi_clr_pencol(hPen);
}
/*
* gdi_get_point:
* Plot a pixel.
*******************************************************************************
*/
int32 gdi_get_point(int32 x, int32 y)
{
x = ((x < 0) ? 0 : ((x > (maxX - 1)) ? (maxX - 1) : x));
y = ((y < 0) ? 0 : ((y > (maxY - 1)) ? (maxY - 1) : y));
COLORREF col = GetPixel(mGdiHdc, x, y);
return (int32)col;
}
......
/*
* gdi_triangle:
* A triangle is a spoilt days fishing
*******************************************************************************
*/
void gdi_triangle(int32 x1, int32 y1, int32 x2, int32 y2, int32 colour, int32 filled)
{
HPEN _hPen;
HBRUSH _hBrush;
POINT triangle[3] = { 0 };
int32 halfx = 0;
halfx = ((x2 - x1 + 1) / 2);
triangle[0].x = x1 + halfx;
triangle[0].y = y1;
triangle[1].x = x1;
triangle[1].y = y2;
triangle[2].x = x2;
triangle[2].y = y2;
if (filled)
{
_hPen = _gdi_set_pencol(colour);
_hBrush = _gdi_set_brushcol(colour);
Polygon(mGdiHdc, triangle, 3);
_gdi_clr_pencol(_hPen);
_gdi_clr_brushcol(_hBrush);
}
else
{
_hPen = _gdi_set_pencol(colour);
Polygon(mGdiHdc, triangle, 3);
_gdi_clr_pencol(_hPen);
}
}
......
/*
* gdi_init:
* Initialise the display and GPIO.
*******************************************************************************
*/
int32 gdi_init(HWND hWnd)
{
int32 hGdiWndWidth = 0;//窗口客户区宽度
int32 hGdiWndHeight = 0;//窗口客户区高度
hGdiWnd = hWnd;
hGdiHdc = GetDC(hGdiWnd); //获取硬件设备
mGdiHdc = CreateCompatibleDC(hGdiHdc); //创建软件设备,双缓冲技术
GetClientRect(hGdiWnd, &hGdiWndRect);
hGdiWndWidth = hGdiWndRect.right - hGdiWndRect.left;
hGdiWndHeight = hGdiWndRect.bottom - hGdiWndRect.top;
//双缓冲技术核心:先创建一个软件绘图设备HDC,为这个软件HDC选择一个内存画布,
//所有的绘图都通过这个软件HDC来完成,都被绘制到了这个内存画布之上
//当所有的绘图工作都完成之后,就通过BitBlt把内存画布上的内容拷贝到硬件绘图设备HDC上,
//这样就完成了显示(gdi_update)
mGdiBmp = CreateCompatibleBitmap(hGdiHdc, hGdiWndWidth, hGdiWndHeight);//创建BMP画布
mGdiBmpOld = SelectObject(mGdiHdc, mGdiBmp);//为软件HDC设备选择BMP画布
return OK;
}
int32 gdi_dinit(void)
{
DeleteObject(mGdiBmp);//删除BMP画布
DeleteObject(mGdiHdc);//删除软件设备
DeleteDC(hGdiHdc);//删除硬件设备
return OK;
}
int32 gdi_update(void)
{
int32 hGdiWndWidth = 0;//窗口客户区宽度
int32 hGdiWndHeight = 0;//窗口客户区高度
hGdiWndWidth = hGdiWndRect.right - hGdiWndRect.left;
hGdiWndHeight = hGdiWndRect.bottom - hGdiWndRect.top;
//把软件设备上的内容拷贝到硬件设备上
BitBlt(hGdiHdc, 0, 0, hGdiWndWidth, hGdiWndHeight, mGdiHdc, 0, 0, SRCCOPY);
return OK;
}
如上图所示,每个坦克由6个小方块组成,把这6个小方块按顺序标号.每个坦克有上下左右四个方向.为了简化程序操作,把这四个方向的坦克放在一个(二维)数组 TANK_SHAPE_BOX 中,即TANK_SHAPE_BOX[4][6],4表示共有四种形状的坦克(四个方向),6表示每种坦克由6个小方块. 数组的每个元素保存的是这6个小方块的相对坐标.坦克的每个方块的实际坐标可以通过坦克左上角的坐标与这6个相对坐标计算得到.
typedef enum property_e
{
PR_MIN = 0,
PR_NULL = 0,//无
PR_WALL, //墙
PR_WEAPON, //武器
PR_LIFE, //装备
PR_BOMB, //炮弹
PR_MYSELF, //自己
PR_ENMY, //敌人
PR_MAX
} property_t; //属性
typedef struct point_s
{
uint32_t x;
uint32_t y;
uint32_t col;
} point_t;//坐标点
typedef struct tank_s
{
int8 valid;//是否有效
dir_t dir;//坦克方向，同时也是其在TANK_SHAPE_BOX中的索引
point_t pnt;//坦克左上角的坐标，其它点的相对坐标在TANK_SHAPE_BOX中
property_t pr;//属性,只能是 PR_MYSEL, PR_ENMY, PR_NULL 三个之一
int32 lf;//生命值,正常情况>1, 当为1时表示被击毁(变为黄色,随后死亡), 当为0时表示死亡
int32 wep;//武器,>0时表示使用超级武器,每次发射3颗炮弹
int32 mv;//移动(步数)
int32 fire;//开火倒计时,
int32 kill;//击杀的敌军数量
} tank_t;
const point_t TANK_SHAPE_BOX[TANK_SHAPE_NUM_MAX][TANK_SHAPE_PNT_MAX]=
{//不论哪个方向的坦克，其车身点在数组中的位置都是固定的
{{1,0,TRUE},{0,1,TRUE},{2,1,TRUE},{1,1,TRUE},{0,2,TRUE},{2,2,TRUE}},//上
{{2,1,TRUE},{1,0,TRUE},{1,2,TRUE},{1,1,TRUE},{0,0,TRUE},{0,2,TRUE}},//右
{{1,2,TRUE},{2,1,TRUE},{0,1,TRUE},{1,1,TRUE},{2,0,TRUE},{0,0,TRUE}},//下
{{0,1,TRUE},{1,2,TRUE},{1,0,TRUE},{1,1,TRUE},{2,2,TRUE},{2,0,TRUE}}//左
};
//参战斗坦克(最大),坦克仓库,保存了所有坦克的信息,包括在地图上的坐标(只需要保存其左上角的坐标),敌我属性,武器属性,生命值,移动等等
static tank_t TANK_WAR_BOX[TANK_WAR_NUM_MAX]={0};
//制造一辆坦克
tank_t* tank_create_atank(tank_t* tank, int32 pr)
{
point_t pnt = { 0 };
int32 n = TankMaxX * TankMaxY;
int32 i = 0;
if (tank == RTN_NULL)
{
return RTN_NULL;
}
memset(tank, 0, sizeof(tank_t));
tank->valid = TRUE;
tank->pr = PR_NULL;
tank->dir = tank_get_rand(DIR_MIN, DIR_MAX);//获取一个随机的方向
tank->wep = WP_NONE;
tank->lf = LF_LIVE;
tank->kill = 0;
tank->bomb = 0;
if (pr == PR_MYSELF)//我军
{
tank->mv = MV_STOP;//默认不可移动,（手动操控）
tank->fire = 1;
tank->pr = PR_MYSELF;
}
else//敌军
{
tank->mv = tank_get_rand(MV_MOVE, min(TankMaxX, TankMaxY));//产生一个随机的移动步数
tank->fire = tank_get_rand(TANK_TIMER_FIRE_MIN, TANK_TIMER_FIRE_MAX);
tank->pr = PR_ENMY;
}
while (n--)//寻找可以放置坦克的随机点
{
tank_get_randpnt(&(tank->pnt));//生成一个随机点
for (i = 0; i < TANK_SHAPE_PNT_MAX; i++)
{
pnt.x = tank->pnt.x + TANK_SHAPE_BOX[tank->dir][i].x;
pnt.y = tank->pnt.y + TANK_SHAPE_BOX[tank->dir][i].y;
if (tank_get_warmap(&pnt) != PR_NULL)
{
break;
}
}
if (i >= TANK_SHAPE_PNT_MAX)
{
tank->pnt.col = TANK_PR_COLOUR[tank->pr];
return tank;//该位置可以放下一坦克
}
}
memset(tank, 0, sizeof(tank_t));
tank->pr = PR_NULL;
tank->valid = FALSE;
return RTN_NULL;
}
//在地图上绘制坦克
int32 tank_draw_atank(tank_t* tank)
{
int32 i = 0;
point_t pnt = { 0 };
int32 pr = 0;
if (tank == NULL)
{
return RTN_ERR;
}
if (tank->valid == FALSE)
{
return RTN_ERR;
}
for (i = 0; i < TANK_SHAPE_PNT_MAX; i++)
{
pnt.x = tank->pnt.x + TANK_SHAPE_BOX[tank->dir][i].x;
pnt.y = tank->pnt.y + TANK_SHAPE_BOX[tank->dir][i].y;
pnt.col = tank->pnt.col;
tank_set_warmap(&pnt, tank->pr);
}
return RTN_OK;
}
//检查坦克是否能够继续移动
int32 tank_check_atank(tank_t* tank)
{
int32 i = 0, pr = 0;
point_t pnt = { 0 };
point_t* ppnt = NULL;
if (tank == NULL)
{
return FALSE;
}
if ((tank->pr == PR_NULL) || (tank->valid == FALSE))
{
return FALSE;
}
//坦克不能越界
if ((tank->pnt.x < 0) || (tank->pnt.x >= TankMaxX) ||
(tank->pnt.y < 0) || (tank->pnt.y >= TankMaxY))
{
return FALSE;
}
for (i = 0; i < /*TANK_SHAPE_PNT_MAX*/3; i++)//只需要检查前三个点能否移动
{
pnt.x = tank->pnt.x + TANK_SHAPE_BOX[tank->dir][i].x;
pnt.y = tank->pnt.y + TANK_SHAPE_BOX[tank->dir][i].y;
ppnt = tank_get_nextpnt(tank->dir, &pnt);
if (ppnt == RTN_NULL)
{
return FALSE;
}
//坦克不能越界
if ((ppnt->x < 0) || (ppnt->x >= TankMaxX) ||
(ppnt->y < 0) || (ppnt->y >= TankMaxY))
{
return FALSE;
}
//坦克的下一个位置必须不是坦克或墙
pr = tank_get_warmap(ppnt);
if ((pr == PR_WALL) || (pr == PR_MYSELF) || (pr == PR_ENMY))
{
return FALSE;
}
}
return TRUE;
}typedef struct bomb_s
{
int8 valid;
dir_t dir;//炮弹飞行方向
point_t pnt;//炮弹的坐标点
property_t pr;//炮弹属性(敌人的炮弹还是自己的炮弹)
tank_t* ptank;//这颗炮弹是哪辆坦克发射的
} bomb_t;
static bomb_t TANK_BOMB_BOX[TANK_BOMB_NUM_MAX] = { 0 };//同一时刻所有坦克发出的炮弹
//制造一颗炮弹
bomb_t* tank_create_abomb(tank_t* tank, bomb_t* bomb, int32* bnum)
{
int32 i = 0;
point_t pnt = { 0 };
point_t* ppnt = NULL;
if ((tank == NULL) || (bomb == NULL) || (bnum == NULL))
{
return RTN_NULL;
}
if (tank->pr == PR_NULL)
{
return RTN_NULL;
}
if (tank->wep > WP_NONE)//加强版武器，每次发射三颗炮弹
{
//tank->wep -= 1;//武器使用一次
tank->bomb += 3;
for (i = 0; i < 3; i++)
{
*bnum = i + 1;
pnt.x = tank->pnt.x + TANK_SHAPE_BOX[tank->dir][i].x;
pnt.y = tank->pnt.y + TANK_SHAPE_BOX[tank->dir][i].y;
ppnt = tank_get_nextpnt(tank->dir, &pnt);
if (ppnt == RTN_NULL)
{
*bnum = 0;
memset(&(bomb[i]), 0, sizeof(bomb_t));
bomb[i].valid = FALSE;
bomb[i].pr = PR_NULL;
return RTN_NULL;
}
bomb[i].valid = TRUE;
bomb[i].dir = tank->dir;
bomb[i].pr = tank->pr;
bomb[i].ptank = tank;
ppnt->col = TANK_PR_COLOUR[PR_BOMB];
COPY_POINT(&(bomb[i].pnt), ppnt);
}
}
else//普通武器，每次发射一颗炮弹
{
tank->bomb += 1;
*bnum = 1;
pnt.x = tank->pnt.x + TANK_SHAPE_BOX[tank->dir][0].x;
pnt.y = tank->pnt.y + TANK_SHAPE_BOX[tank->dir][0].y;
ppnt = tank_get_nextpnt(tank->dir, &pnt);
if (ppnt == RTN_NULL)
{
*bnum = 0;
memset(&(bomb[0]), 0, sizeof(bomb_t));
bomb[0].valid = FALSE;
bomb[0].pr = PR_NULL;
return RTN_NULL;
}
bomb[0].valid = TRUE;
bomb[0].dir = tank->dir;
bomb[0].pr = tank->pr;
bomb[0].ptank = tank;
ppnt->col = TANK_PR_COLOUR[PR_BOMB];
COPY_POINT(&(bomb[0].pnt), ppnt);
}
return bomb;
}
//在地图上绘制炮弹
int32 tank_draw_abomb(bomb_t* bomb)
{
int32 pr = 0;
if (bomb == NULL)
{
return RTN_ERR;
}
if (bomb->valid == FALSE)
{
return RTN_ERR;
}
//炮弹也分为敌方炮弹和我方炮弹,用pr区分
//但是不管敌方炮弹还是我方炮弹,显示的形状都
//是一样的,都是(黄色)圆形,这里要注意区分
//pr用于控制显示的形状
pr = ((bomb->pr != PR_NULL) ? PR_BOMB : PR_NULL);
tank_set_warmap(&(bomb->pnt), pr);
return RTN_OK;
}
//检查炮弹能否继续移动
int32 tank_check_abomb(bomb_t* bomb)
{
if (bomb == NULL)
{
return FALSE;
}
if ((bomb->pr == PR_NULL) || (bomb->valid == FALSE))
{
return FALSE;
}
if ((bomb->pnt.x < 0) || (bomb->pnt.x >= TankMaxX) ||
(bomb->pnt.y < 0) || (bomb->pnt.y >= TankMaxY))
{
return FALSE;
}
return TRUE;
}
//在弹药库中查照炮弹(根据坐标)
bomb_t* tank_search_abomb_inbox(point_t* point)
{
int32 i = 0;
if (point == NULL)
{
return RTN_NULL;
}
if ((point->x < 0) || (point->x >= TankMaxX) ||
(point->y < 0) || (point->y >= TankMaxY))
{
return RTN_NULL;
}
for (i = 0; i < TANK_BOMB_NUM_MAX; i++)
{
if ((TANK_BOMB_BOX[i].pr == PR_NULL) ||
(TANK_BOMB_BOX[i].valid == FALSE))//过滤无效的元素
{
continue;
}
if ((point->x == TANK_BOMB_BOX[i].pnt.x) &&
(point->y == TANK_BOMB_BOX[i].pnt.y))
{
return &(TANK_BOMB_BOX[i]);
}
}
return RTN_NULL;
}typedef struct equip_s
{
int8 valid;//装备是否有效
point_t pnt;//装备的坐标点
property_t pr;//装备属性(武器还是生命)
int32 tmr;//装备存活定时器，到期后装备消失
} equip_t;
static equip_t TANK_EQUIP = { 0 };//坦克的装备
//创建一个装备
equip_t* tank_create_aequip(equip_t* equip)
{
point_t pnt = { 0 };
int32 n = TankMaxX * TankMaxY;
int32 i = 0;
if (equip == RTN_NULL)
{
return RTN_NULL;
}
equip->tmr = tank_get_rand(TANK_TIMER_EQUIP_MIN, TANK_TIMER_EQUIP_MAX);
equip->pr = tank_get_rand(TANK_TIMER_MIN, TANK_TIMER_MAX);
equip->valid = TRUE;
if ((equip->pr % 2) == 0)
{
equip->pr = PR_LIFE;
}
else
{
equip->pr = PR_WEAPON;
}
while (n--)//寻找可以放置装备的随机点
{
tank_get_randpnt(&(equip->pnt));//生成一个随机点
pnt.x = equip->pnt.x;
pnt.y = equip->pnt.y;
if (tank_get_warmap(&pnt) == PR_NULL)
{
equip->pnt.col = TANK_PR_COLOUR[equip->pr];
return equip;
}
}
memset(equip, 0, sizeof(equip_t));
equip->valid = FALSE;
equip->pr = PR_NULL;
return RTN_NULL;
}
//在地图上绘制装备
uint32 tank_draw_aequip(equip_t* equip)
{
point_t pnt = { 0 };
int32 n = TankMaxX * TankMaxY;
int32 i = 0;
if (equip == RTN_NULL)
{
return RTN_ERR;
}
if (equip->valid == FALSE)
{
return RTN_ERR;
}
tank_set_warmap(&(equip->pnt), equip->pr);
return RTN_OK;
}
//坦克大战装备系统
int32 tank_move_equip(void)
{
equip_t equip = { 0 };
//产生装备
if (TANK_PR.create_equp_tmr > 0)
{
TANK_PR.create_equp_tmr -= 1;
}
else
{
if (tank_create_aequip(&equip) != RTN_NULL)
{
memcpy(&TANK_EQUIP, &equip, sizeof(equip_t));//产生新的
}
TANK_PR.create_equp_tmr = tank_get_rand(TANK_TIMER_EQUIP_MIN, TANK_TIMER_EQUIP_MAX);//重启生成定时器
}
if ((TANK_EQUIP.pr != PR_NULL) && (TANK_EQUIP.valid != FALSE))
{
if (TANK_EQUIP.tmr > 0)
{
TANK_EQUIP.tmr -= 1;
}
else
{
TANK_EQUIP.pr = PR_NULL;
TANK_EQUIP.valid = FALSE;
TANK_PR.create_equp_tmr = tank_get_rand(TANK_TIMER_EQUIP_MIN, TANK_TIMER_EQUIP_MAX);//重启生成定时器
}
}
return RTN_OK;
}//坦克移动
int32 tank_move_atank(dir_t dir)
{
int32 i = 0;
for (i = 0; i < TANK_WAR_NUM_MAX; i++)
{
if ((TANK_WAR_BOX[i].pr == PR_NULL) || //过滤无效的元素
(TANK_WAR_BOX[i].valid == FALSE))
{
continue;
}
if (TANK_WAR_BOX[i].pr == PR_ENMY)//敌军
{
if (TANK_WAR_BOX[i].mv > MV_STOP)//步数还未用完
{//继续移动
TANK_WAR_BOX[i].mv -= 1;
if (tank_check_atank(&(TANK_WAR_BOX[i])) != FALSE)
{//还能继续移动
tank_get_nextpnt(TANK_WAR_BOX[i].dir, &(TANK_WAR_BOX[i].pnt));//坦克移动一步
}
else
{//不能继续移动，调转方向
TANK_WAR_BOX[i].dir = tank_get_rand(DIR_MIN, DIR_MAX);//获取一个随机的方向
}
}
else
{//调转方向
TANK_WAR_BOX[i].dir = tank_get_rand(DIR_MIN, DIR_MAX);//获取一个随机的方向
TANK_WAR_BOX[i].mv = tank_get_rand(MV_MOVE, min(TankMaxX, TankMaxY));//产生一个随机的移动步数
}
}
else if (TANK_WAR_BOX[i].pr == PR_MYSELF)//我军
{
if (dir < DIR_MAX)
{//移动
if (TANK_WAR_BOX[i].dir == dir)
{//继续移动
if (tank_check_atank(&(TANK_WAR_BOX[i])) != FALSE)
{//还能继续移动
tank_get_nextpnt(TANK_WAR_BOX[i].dir, &(TANK_WAR_BOX[i].pnt));//坦克移动一步
}
}
else
{//调转方向
TANK_WAR_BOX[i].dir = dir;
}
}
}
}
return RTN_OK;
}
//炮弹移动
int32 tank_move_abomb(void)
{
int32 i = 0;
//point_t pnt = { 0 };
//tank_t* ptank = NULL;
for (i = 0; i < TANK_BOMB_NUM_MAX; i++)
{
//if (TANK_BOMB_BOX_VALID[i] == 0)//过滤无效的元素
if ((TANK_BOMB_BOX[i].pr == PR_NULL) ||
(TANK_BOMB_BOX[i].valid == FALSE))
{
continue;
}
if (tank_check_abomb(&(TANK_BOMB_BOX[i])) == FALSE)
{//不能继续移动
TANK_BOMB_BOX[i].pr = PR_NULL;
}
else
{//继续移动
tank_get_nextpnt(TANK_BOMB_BOX[i].dir, &(TANK_BOMB_BOX[i].pnt));
}
}
return RTN_OK;
}//坦克移动侦测(碰撞检测)
int32 tank_detect(tank_t* tank)
{
int32 i = 0, pr = 0;
point_t pnt = { 0 };
bomb_t* bomb = NULL;
if (tank == NULL)
{
return RTN_ERR;
}
if ((tank->pr == PR_NULL) || (tank->valid == FALSE))
{
return RTN_OK;
}
for (i = 0; i < TANK_SHAPE_PNT_MAX; i++)
{
pnt.x = tank->pnt.x + TANK_SHAPE_BOX[tank->dir][i].x;
pnt.y = tank->pnt.y + TANK_SHAPE_BOX[tank->dir][i].y;
pr = tank_get_warmap(&(pnt));
switch (pr)
{
case PR_WEAPON://吃到武器
tank->wep += TANK_WEAPON_LIFE_MAX;//增加武器可以使用次数
TANK_EQUIP.tmr = 0;//装备消失
TANK_EQUIP.pr = PR_NULL;
tank_sound(IDR_WAVE_WEAPON);
break;
case PR_LIFE://吃到装备
tank->lf += 1;//吃到装备，生命值+1
TANK_EQUIP.tmr = 0;//装备消失
TANK_EQUIP.pr = PR_NULL;
tank_sound(IDR_WAVE_LIFE);
break;
case PR_BOMB://吃到炮弹
bomb = tank_search_abomb_inbox(&(pnt));
if (bomb == RTN_NULL)
{
break;
}
if (bomb->pr != tank->pr)//自己的炮弹不能炸自己
{
if (tank->lf > LF_LIVE)
{
tank->lf -= 1;//生命值-1
}
if (tank->lf = LF_LIVE)
{
tank->lf -= 1;//生命值-1
bomb->ptank->kill += 1;//为这颗炮弹的主人增加一次击杀记录
}
bomb->pr = PR_NULL;//击中目标的炮弹失效
tank->wep = WP_NONE;//坦克被击中之后其武器失效
tank_sound(IDR_WAVE_BOMB);
}
break;
case PR_NULL:
case PR_WALL:
case PR_ENMY:
case PR_MYSELF:
default:
break;
}
}
return RTN_OK;
}//清理战场
int32 tank_clean(tank_t* tank)
{
int32 i = 0, j = 0, k = 0;
static int8 war_num_flag = FALSE;
tank_t ttank = { 0 };
tank_t* ptank = NULL;
if (tank == NULL)
{
return RTN_ERR;
}
if ((tank->pr == PR_NULL) || (tank->valid == FALSE))
{
return RTN_OK;
}
//打扫战场
if (tank->lf == LF_DIE)
{//清理掉已经炸毁的坦克
if (tank->pr == PR_MYSELF)
{//我军战败
tank->pr = PR_NULL;
//DEBUG_LOG("");
return RTN_ERR;
}
if (tank->pr == PR_ENMY)
{//敌军损毁一辆坦克
//销毁一辆损毁的坦克
tank->pr = PR_NULL;}
}
if (tank->lf == LF_BURN)
{//把正在燃烧的坦克标记为炸毁，下次清理
tank->lf = LF_DIE;
tank->mv = MV_STOP;//停止移动
//tank->pr = PR_BOMB;//将其属性改为炮弹，表示即将爆炸，其他坦克撞到它也会失去一颗生命值
tank->pnt.col = TANK_PR_COLOUR[PR_BOMB];//将其颜色改为和炮弹同色
}
//我军每击杀5辆坦克敌军坦克数量+1
if ((tank->pr == PR_MYSELF) && (tank->kill > 0))
{
if ((tank->kill % 5) == 0)
{
if (war_num_flag == FALSE)
{
war_num_flag = TRUE;
TANK_PR.war_tank_num += 1;
}
}
else
{
war_num_flag = FALSE;
}
}
tank_count();//统计坦克的数目
//增援新坦克
k = 0;
for (i = TANK_PR.cur_tank_num; i < TANK_PR.war_tank_num; i++)
{
ptank = tank_create_atank(&ttank, PR_ENMY);
if (ptank != RTN_NULL)
{
//寻找位置，把新坦克插入到队列中
for (j = k; j < TANK_WAR_NUM_MAX; j++)
{
if ((TANK_WAR_BOX[j].pr == PR_NULL) &&
(TANK_WAR_BOX[j].valid == FALSE))
{
k = j + 1;
memcpy(&(TANK_WAR_BOX[j]), ptank, sizeof(tank_t));
break;
}
}
}
}
return RTN_OK;
}//坦克开火
int32 tank_fire(tank_t* tank, int32* fire)
{
int32 m = 0, k = 0, j = 0;
int32 bnum = 0;
bomb_t bomb[3] = { 0 };
if ((tank == NULL) || (fire == NULL))
{
return RTN_ERR;
}
if ((tank->pr == PR_NULL) || (tank->valid == FALSE))
{
return RTN_OK;
}
if (tank->pr == PR_MYSELF)
{
//我军开火方式由手动控制
if (*fire)
{
*fire = FALSE;
tank->fire = 0;
}
else
{
tank->fire = 1;
}
}
//开火倒计时
if (tank->fire > 0)
{
tank->fire -= 1;
}
else
{
tank->fire = tank_get_rand(TANK_TIMER_FIRE_MIN, TANK_TIMER_FIRE_MAX);
//坦克发射炮弹(先产生炮弹，放入队列中)
if (tank_create_abomb(tank, bomb, &bnum) != RTN_NULL)
{
m = 0;
//把炮弹插入到炮弹队列中
for (j = 0; j < bnum; j++)
{
//寻找可以插入炮弹的位置
for (k = m; k < TANK_BOMB_NUM_MAX; k++)
{
if ((TANK_BOMB_BOX[k].pr == PR_NULL) ||
(TANK_BOMB_BOX[k].valid == FALSE))
{
//插入炮弹
m = k + 1;
memcpy(&(TANK_BOMB_BOX[k]), &bomb[j], sizeof(bomb_t));
break;
}
}
}
if (tank->pr == PR_MYSELF)
{
tank_sound(IDR_WAVE_FIRE);
}
}
}
return RTN_OK;
}void tank_draw(void)
{
int32 i = 0;
tank_clear_warmap();
//绘制坦克
for (i = 0; i < TANK_WAR_NUM_MAX; i++)
{
if (TANK_WAR_BOX[i].valid == FALSE)
{
continue;
}
tank_draw_atank(&(TANK_WAR_BOX[i]));
if (TANK_WAR_BOX[i].pr == PR_NULL)
{
memset(&(TANK_WAR_BOX[i]), 0, sizeof(tank_t));
TANK_WAR_BOX[i].pr = PR_NULL;
TANK_WAR_BOX[i].valid = FALSE;
}
}
//绘制装备
if (TANK_EQUIP.valid != FALSE)
{
tank_draw_aequip(&(TANK_EQUIP));
if (TANK_EQUIP.pr == PR_NULL)
{
memset(&(TANK_EQUIP), 0, sizeof(equip_t));
TANK_EQUIP.pr = PR_NULL;
TANK_EQUIP.valid = FALSE;
}
}
//绘制炮弹
for (i = 0; i < TANK_BOMB_NUM_MAX; i++)
{
if (TANK_BOMB_BOX[i].valid == FALSE)
{
continue;
}
tank_draw_abomb(&(TANK_BOMB_BOX[i]));
if (TANK_BOMB_BOX[i].pr == PR_NULL)
{
memset(&(TANK_BOMB_BOX[i]), 0, sizeof(bomb_t));
TANK_BOMB_BOX[i].pr = PR_NULL;
TANK_BOMB_BOX[i].valid = FALSE;
}
}
tank_update_warmap();
}int32 tank_run(dir_t* dir, int32* fire)
{
int32 i = 0, j = 0, k = 0, m = 0;
equip_t equip = { 0 };
tank_t tank = { 0 };
tank_t* ptank = NULL;
bomb_t bomb[3] = { 0 };
int32 bnum = 0;
static int32 speed = 0;
int32 pr = 0;
int32 ret = RTN_OK;
for (i = 0; i < TANK_WAR_NUM_MAX; i++)
{
//打扫战场
ret = tank_clean(&(TANK_WAR_BOX[i]));
if (ret != RTN_OK)
{//我军被击败,游戏结束
//DEBUG_LOG("ERR");
return ret;
}
tank_fire(&(TANK_WAR_BOX[i]), fire);//坦克开火
tank_detect(&(TANK_WAR_BOX[i]));//碰撞检测
}
//移动坦克,炮弹和装备
if (speed < TANK_PR.speed)
{
speed++;
}
else
{
speed = 0;
tank_move_atank(*dir);
*dir = DIR_MAX;
}
tank_move_equip();
tank_move_abomb();
tank_draw();//更新图像界面
return RTN_OK;
}
坦克大战-C语言-详注版
注：本文著作权归作者，由demo大师代发，拒绝转载，转载需要作者授权
标签：-- cmd 方式 src entry img 其它 initial 产生
原文地址：https://www.cnblogs.com/demodashi/p/9802037.html
