c++烟花代码
#include
#include
#include
#include "math.h"
#include "time.h"
//烟花弹
struct Jet {
int x = 0, y = 0;
int hx = 0, hy = 0;
unsigned long t1 = 0, t2 = 0, dt = 0;
IMAGE img;
bool isshoot = 1;
}jet;
Jet jet1, jet2, jet3;
//烟花
struct Fire {
int r = 0; //当前半径
int maxr = 0; //最大半径
int x = 0, y = 0; //中心点坐标（窗口）
int cx = 0, cy = 0; //中心点坐标（图画）
int xy[240][240]; //保存像素点
bool isboom = 0; //是否爆炸
bool isdraw = 0; //是否显示
unsigned long t1 = 0, t2 = 0, dt = 0; //爆炸速度
}fire;
Fire fire1, fire2, fire3;
void jet_init(Jet* jetn) //烟花弹的初始化
{
jetn->x = rand() % 1100 - 20;
jetn->y = rand() % 50 + 700;
jetn->hx = jetn->x;
jetn->hy = rand() % 450;
jetn->t1 = GetTickCount(); //获取系统时间
jetn->isshoot = true;
jetn->dt = rand() % 10 + 1;
}
void fire_init(Fire* firen)
{
firen->r = 0;
firen->maxr = 120;
firen->cx = 120; firen->cy = 120; //中心点的坐标（图片）
firen->isboom = true; firen->isdraw = false;
firen->t1 = GetTickCount();
firen->dt = 5; //烟花爆炸速度
IMAGE fimg;
loadimage(&fimg, L"烟花4.jpg", 240, 240);
SetWorkingImage(&fimg);
for (int a = 0; a < 240; a++)
{
for (int b = 0; b < 240; b++)
{
firen->xy[a][b] = getpixel(a, b); //传入像素点
}
}
SetWorkingImage();
}
//函数测试
void fire_text(Jet* jetn, Fire* firen)
{
DWORD* pmem = GetImageBuffer();
jetn->t2 = GetTickCount();
if (jetn->t2 - jetn->t1 > jetn->dt && jetn->isshoot == true)
{
putimage(jetn->x, jetn->y, &jetn->img, SRCINVERT);
if (jetn->y > jetn->hy)
{
jetn->y -= 5;
putimage(jetn->x, jetn->y, &jetn->img, SRCINVERT);
}
if (jetn->y <= jetn->hy) //烟花弹移动出界
{
jetn->isshoot = false;
putimage(jetn->x, jetn->y, &jetn->img, SRCINVERT);
fire_init(firen); //烟花的初始化
firen->x = jetn->hx + 10;
firen->y = jetn->hy - 20;
}
if (jetn->isshoot == false && firen->isboom == true && firen->isdraw == 0)
{
jet_init(jetn);
putimage(jetn->x, jetn->y, &jetn->img, SRCINVERT);
}
jetn->t1 = jetn->t2;
//烟花
int drt[13] = { 5,5,5,10,10,15,15,25,35,40,40,55,55 }; //不一样的速度
firen->t2 = GetTickCount();
if (firen->t2 - firen->t1 > firen->dt && firen->isboom == true)
{
if (firen->r < firen->maxr)
{
firen->r++;
firen->dt = drt[firen->r / 10];
firen->isdraw = true;
}
if (firen->r > firen->maxr - 1)
{
firen->isdraw = false;
firen->isboom = false;
//初始化烟花
firen->r = 0;
firen->maxr = 120;
}
firen->t1 = firen->t2;
if (firen->isdraw = true)
{
for (double a = 0; a < 6.28; a += 0.01)
{
for (int m = 0; m <= firen->r; m++)
//x1 y1 来自像素点的628个像素坐标
{
int x2 = firen->cx + m * cos(a);
int y2 = firen->cy - m * sin(a);
//如果数据正常，获取像素点的三原色系
if (x2 > 0 && x2 < 240 && y2 > 0 && y2 < 240)
{
int b = firen->xy[x2][y2] & 0xff;
int g = (firen->xy[x2][y2] >> 8) & 0xff;
int r = firen->xy[x2][y2] >> 16;
//求圈上的点在窗体上的坐标
int xx2 = firen->x + m * cos(a);
int yy2 = firen->y - m * sin(a);
if (/*b > 0x20 && g > 0x20 && r > 0x20 &&*/ xx2 < 1200 && xx2 > 0 && yy2 > 0 && yy2 <= 600)
{
pmem[yy2 * 1100 + xx2] = BGR(firen->xy[x2][y2]);
}
}
}
}
firen->isdraw == false;
}
}
}
}
int ss = 0;
int Fire_Finally() //烟花主函数
{
initgraph(1100, 800);
srand(time(0));
/*-----------------------------------------图片------------------------------------*/
jet_init(&jet);
loadimage(&jet.img, L"烟花弹2.jpg", 20, 50);
putimage(jet.x, jet.y, &jet.img, SRCINVERT);
DWORD* pmem = GetImageBuffer();
BeginBatchDraw();
while (1)
{
for (int clr = 0; clr < 1000; clr++)
{
for (int j = 0; j < 2; j++)
{
int px1 = rand() % 1200;
int py1 = rand() % 650;
if (py1 < 790)
{
pmem[py1 * 1200 + px1] = pmem[py1 * 1200 + px1 + 1] = BLACK;
}
}
}
fire_text(&jet, &fire);
FlushBatchDraw();
}
EndBatchDraw();
closegraph();
return 0;
}
int main()
{
Fire_Finally();
system("pause");
return 0;
}