tool.h

本人初学window网络编程时开发的第一款网络游戏

#ifndef TOOL_H
#define TOOL_H

#if _MSC_VER > 1000
#pragma once
#endif

#include "inc.h"

//宏

//随机数生成
#define GetRandom( min, max ) ((rand() % (int)(((max) + 1) - (min))) + (min))


//碰撞检测
bool Collision(COORD aPos , COORD bPos , int aWidth=1 , int bWidth=1 , int aHeight=1 , int bHeight=1)
{
	if (aPos.X > bPos.X-aWidth  &&
		aPos.X < bPos.X+bWidth  &&
		aPos.Y > bPos.Y-aHeight &&
		aPos.Y < aPos.Y+bHeight  )
	{
		return true;
	} 
	else
	{
		return false;
	}
}


//边界检测
bool CheckLimit(COORD _pos , char type , char act)
{
	COORD pos=_pos;
	switch (act)
	{
	case ACT_MOVEUP:
		pos.Y--;
		break;
	case ACT_MOVEDOWN:
		pos.Y++;
		break;
	case ACT_MOVELEFT:
		pos.X--;
		break;
	case ACT_MOVERIGHT:
		pos.X++;
		break;
	case ACT_NULL:
		break;
	}


	int iLeft , iTop , iRight , iBottom;
	iLeft=26;
	switch (type)
	{
	case BULLET_PLAYER_UP: case BULLET_PLAYER_DOWN:      //子弹边界
		iTop=0;
		iBottom=25;
		iRight=80;
		break;
	case PLAYER_UP:      //玩家(上)边界
		iTop=1;
		iBottom=12;
		iRight=75;
		break;
	case PLAYER_DOWN:      //玩家(下)边界
		iTop=14;
		iBottom=24;
		iRight=75;
		break;
	}

	if (pos.X<iLeft || pos.X>iRight || pos.Y<iTop || pos.Y>iBottom)
	{
		return true;
	} 
	else
	{
		return false;
	}

}



//字符数组转int
unsigned long ByteArrayToInt(char *pBuf,int iLen)
{
	unsigned long lRet = 0;
	if (pBuf)
	{
		if (iLen > sizeof(unsigned long))
		{
			iLen = sizeof(unsigned long);
		}
		for(int i = iLen - 1; i >= 0; i--)
		{
			lRet = lRet << 8;
			lRet |= pBuf[i] & 0xff;
		}
	}
	return lRet;
}


//int转字符数组
void IntToByteArray(unsigned long lNum,char* pBuf,int iLen)
{
	if (pBuf)
	{
		if (iLen > sizeof(unsigned long))
		{
			iLen = sizeof(unsigned long);
		}

		for(int i = 0; i < iLen; i++)
		{
			pBuf[i] = (char)((lNum >> (i * 8)) & 0xFF);
		}	
	}
}
#endif