C++控制台渲染一朵花

C++控制台渲染一朵花

// Rose.cpp : 定义控制台应用程序的入口点。
#include "stdafx.h"
////////////////////////////////////////////////////////////////////
// 程序名称：玫瑰花
// vs2015 EasyX_2018春分版图形库

#include <graphics.h>
#include <conio.h>
#include <math.h>
// 定义全局变量
int rosesize = 500;
int h = -250;

// 定义结构体
struct DOT
{
	double x;
	double y;
	double z;
	double red;      // 红色
	double green;    // 绿色
					 // blue（蓝色)通过red计算
};

// 计算点
bool calc(double a, double b, double c, DOT &d)
{
	double j, n, o, w, z;

	if (c > 60)      // 花柄
	{
		d.x = sin(a * 7) * (13 + 5 / (0.2 + pow(b * 4, 4))) - sin(b) * 50;
		d.y = b * rosesize + 50;
		d.z = 625 + cos(a * 7) * (13 + 5 / (0.2 + pow(b * 4, 4))) + b * 400;
		d.red = a * 1 - b / 2;
		d.green = a;
		return true;
	}

	double A = a * 2 - 1;
	double B = b * 2 - 1;
	if (A * A + B * B < 1)
	{
		if (c > 37)     // 叶
		{
			j = (int(c) & 1);
			n = j ? 6 : 4;
			o = 0.5 / (a + 0.01) + cos(b * 125) * 3 - a * 300;
			w = b * h;

			d.x = o * cos(n) + w * sin(n) + j * 610 - 390;
			d.y = o * sin(n) - w * cos(n) + 550 - j * 350;
			d.z = 1180 + cos(B + A) * 99 - j * 300;
			d.red = 0.4 - a * 0.1 + pow(1 - B * B, -h * 6) * 0.15 - a * b * 0.4 + cos(a + b) / 5 + pow(cos((o * (a + 1) + (B > 0 ? w : -w)) / 25), 30) * 0.1 * (1 - B * B);
			d.green = o / 1000 + 0.7 - o * w * 0.000003;
			return true;
		}
		if (c > 32)			// 花萼
		{
			c = c * 1.16 - 0.15;
			o = a * 45 - 20;
			w = b * b * h;
			z = o * sin(c) + w * cos(c) + 620;

			d.x = o * cos(c) - w * sin(c);
			d.y = 28 + cos(B * 0.5) * 99 - b * b * b * 60 - z / 2 - h;
			d.z = z;
			d.red = (b * b * 0.3 + pow((1 - (A * A)), 7) * 0.15 + 0.3) * b;
			d.green = b * 0.7;
			return true;
		}

		// 花
		o = A * (2 - b) * (80 - c * 2);
		w = 99 - cos(A) * 120 - cos(b) * (-h - c * 4.9) + cos(pow(1 - b, 7)) * 50 + c * 2;
		z = o * sin(c) + w * cos(c) + 700;

		d.x = o * cos(c) - w * sin(c);
		d.y = B * 99 - cos(pow(b, 7)) * 50 - c / 3 - z / 1.35 + 450;
		d.z = z;
		d.red = (1 - b / 1.2) * 0.9 + a * 0.1;
		d.green = pow((1 - b), 20) / 4 + 0.05;
		return true;
	}

	return false;
}

// 主函数
void main()
{
		// 定义变量
		short	*zBuffer;
		int		x, y, z, zBufferIndex;
		DOT		dot;

		// 初始化
		initgraph(640, 480);				// 创建绘图窗口
		setbkcolor(WHITE);					// 设置背景色为白色
		cleardevice();						// 清屏

											// 初始化 z-buffer
		zBuffer = new short[rosesize * rosesize];
		memset(zBuffer, 0, sizeof(short) * rosesize * rosesize);

		for (int j = 0; j < 2000 && !_kbhit(); j++)	// 按任意键退出
		{
			for (int i = 0; i < 10000; i++)			// 减少是否有按键的判断
				if (calc(double(rand()) / RAND_MAX, double(rand()) / RAND_MAX, rand() % 46 / 0.74, dot))
				{
					z = int(dot.z + 0.5);
					x = int(dot.x * rosesize / z - h + 0.5);
					y = int(dot.y * rosesize / z - h + 0.5);
					if (y >= rosesize) continue;

					zBufferIndex = y * rosesize + x;

					if (!zBuffer[zBufferIndex] || zBuffer[zBufferIndex] > z)
					{
						zBuffer[zBufferIndex] = z;

						// 画点
						int red = ~int((dot.red * h));
						if (red < 0)
							red = 0;
						if (red > 255)
							red = 255;

						int green = ~int((dot.green * h));
						if (green < 0)
							green = 0;
						if (green > 255)
							green = 255;

						int blue = ~int((dot.red * dot.red * -80));
						if (blue < 0)
							blue = 0;
						if (blue > 255)
							blue = 255;
						putpixel(x + 50, y - 20, RGB(red, green, blue));
					}
				}

			Sleep(6);//每次渲染间隔
		}

		// 退出
		delete[]zBuffer;
		_getch();
		closegraph();

	
}

用.ico图片替换.exe图标参考博文https://blog.csdn.net/qq_41092262/article/details/78776873
最终运行效果，生成的exe文件可以直接运行，不需要图形库的支持