C++游戏日志（二）人物跳跃子弹发射

游戏截图

demo实现了人物的子弹发射，跳跃和重力的判断，上下左右出界则会出现人物值越界弹出游戏

Windows10系统会出现光标乱闪情况

#include"pch.h"
#include <iostream>
#include <time.h>
#include <windows.h>
#include <conio.h>
using namespace std;


int main() {
	//世界尺寸
	const int ww = 100;
	const int wh = 40;

	//窗口尺寸
	int cx = 0;
	int cy = 0;
	const int cw = 25;
	const int ch = 20;
	const int cs = cw * ch;
	int map[cs];

	int herox = 0;
	int heroy = 38;
	int zl = 1; //重力
	int jp = 4; //跳跃力
	int curjp = 0; //跳跃判定
	int herofx = 6; //英雄方向
	int herost = 5; //英雄状态

	//子弹
	int zdx = -1;
	int zdy = -1;
	int zdfx = 6;
	int zdzt = -1;
	int zdspeed = 2;

	//地面
	int dmx[3] = { 0, 29, 69 };
	int dmy[3] = { 39, 39, 39 };
	int dmw[3] = { 20, 30, 30 };
	int dmh[3] = { 1, 1, 1 };
	int dmlen = 3;

	//平台
	int ptx[5] = { 5, 34, 74, 5, 13 };
	int pty[5] = { 8, 17, 30, 35, 35 };
	int ptw[5] = { 20, 25, 25, 2, 2 };
	int pth[5] = { 2, 2, 2, 4, 4 };
	int ptlen = 5;

	while (1)
	{
		//卷轴算法
		cx = herox - cw / 2;
		if (cx < 0)
		{
			cx = 0;
		}
		else if (cx + cw >= ww) {
			cx = ww - cw;
		}

		cy = heroy - ch / 2;
		if (cy < 0)cy = 0;
		else if (cy + ch > wh)cy = wh - ch;

		//清空画面

		for (int i = 0; i < cs; i++)
		{
			map[i] = 0;
		}

		//标记地面
		for (int i = 0; i < dmlen; i++)
		{
			int x = dmx[i] - cx;
			int y = dmy[i] - cy;
			int w = dmw[i];
			int h = dmh[i];
			if (x >= cw || x + w < 0 || y + h < 0 || y >= ch)continue;
			if (x < 0)
			{
				w += x;
				x = 0;
			}
			if (x + w >= cw)
			{
				w -= x + w - cw;
			}
			if (y < 0)
			{
				h += y;
				y = 0;
			}
			if (y + h >= ch)
			{
				h -= h + y - ch;
			}
			int s = w * h;
			int pos = x + y * cw;
			for (int j = 0; j < s; j++)
			{
				map[pos] = 1;
				pos++;
				if (j % w == w - 1)
				{
					pos = pos + cw - w;
				}
			}
		}



		//放入平台
		for (int i = 0; i < ptlen; i++)
		{
			int x = ptx[i] - cx;
			int y = pty[i] - cy;
			int w = ptw[i];
			int h = pth[i];
			if (x + w < 0 || x >= cw || y + h < 0 || y >= ch)continue;
			if (x < 0) {
				w += x;
				x = 0;
			}
			if (x + w > cw)
			{
				w -= x + w - cw;
			}
			if (y < 0)
			{
				h += y;
				y = 0;
			}
			if (y + h > ch)
			{
				h -= y + h - ch;
			}
			int pos = x + y * cw;
			int s = w * h;
			for (int j = 0; j < s; j++)
			{
				map[pos] = 1;
				pos++;
				if (j % w == w - 1)
				{
					pos = pos - w + cw;
				}
			}
		}

		//放入子弹
		int pos = zdx - cx + (zdy - cy) * cw;
		if (pos >= 0)
		{
			if (zdfx == 4)map[pos] = 4;
			else map[pos] = 3;
		}

		//放入英雄
		map[herox - cx + (heroy - cy)*cw] = 2;


		//打印
		system("cls");
		for (int i = 0; i < cs; i++)
		{
			if (map[i] == 0)cout << "  ";
			else if (map[i] == 1)cout << "■";
			else if (map[i] == 2)cout << "英";
			else if (map[i] == 3) cout << "→";
			else if (map[i] == 4) cout << "←";
			if (i % cw == cw - 1) cout << endl;
		}

		//操作控制
		if (GetAsyncKeyState('A'))
		{
			herox--;
			herofx = 4;
			for (int i = 0; i < ptlen; i++)
			{
				if (herox < ptx[i] || herox >= ptx[i] + ptw[i] || heroy < pty[i] ||
					heroy >= pty[i] + pth[i])continue;
				herox++;
				break;
			}
		}
		else if (GetAsyncKeyState('D'))
		{
			herox++;
			herofx = 6;
			for (int i = 0; i < ptlen; i++)
			{
				if (herox < ptx[i] || herox >= ptx[i] + ptw[i] || heroy < pty[i] ||
					heroy >= pty[i] + pth[i])continue;
				herox--;
				break;
			}
		}
		if (GetAsyncKeyState('J'))//跳跃
		{
			if (herost == 5)
			{
				herost = 8;
				curjp = jp;
			}
		}
		if (GetAsyncKeyState('K'))//发射
		{
			if (zdy == -1)
			{
				if (herofx == 4)
				{
					zdfx = 4;
					zdx = herox - 1;
				}
				else if (herofx == 6)
				{
					zdfx = 6;
					zdx = herox + 1;
				}
				zdy = heroy;
			}
		}

		//跳跃判定
		if (curjp)
		{
			for (int i = 0; i < curjp; i++)
			{
				heroy--;
				for (int j = 0; j < ptlen; j++)//碰撞判定
				{
					if (herox < ptx[j] || herox >= ptx[j] + ptw[j] || heroy < pty[j] || heroy >= pty[j] + pth[j])
						continue;
					heroy++;
					break;
				}
			}
			curjp--;
		}
		else
		{
			herost = 8;
			heroy += zl;
			for (int i = 0; i < ptlen; i++)//碰撞判定
			{
				if (heroy < pty[i] || heroy >= pty[i] + pth[i] || herox < ptx[i] || herox >= ptx[i] + ptw[i])
					continue;
				heroy--;
				herost = 5;
				break;
			}
			if (herost == 8) {
				for (int i = 0; i < dmlen; i++)//碰撞判定
				{
					if (heroy < dmy[i] || heroy >= dmy[i] + dmh[i] || herox < dmx[i] || herox >= dmx[i] + dmw[i])
						continue;
					heroy--;
					herost = 5;
					break;
				}
			}
		}
		//子弹运动
		if (zdy != -1)
		{
			int fx = 1;
			if (zdfx == 4)fx = -1;
			for (int i = 0; i < zdspeed; i++)
			{
				zdx += fx;
				if (zdx < cx || zdx >= cx + cw)
				{
					zdx = -1;
					zdy = -1;
				}
				for (int j = 0; j < ptlen; j++)
				{
					if (zdy < pty[j] || zdy >= pty[j] + pth[j] || zdx < ptx[j] || zdx >= ptx[j] + ptw[j])
						continue;
					zdx = -1;
					zdy = -1;
				}
			}
		}
		
	}
}