怎么用c语言编一个简单d球问题

/*Ball.h:定义结构体和BALL相关的函数*/

#ifndef _BALL_VC_SUPER_ADMI_2009_12_13_INCLUDE_

#define _BALL_VC_SUPER_ADMI_2009_12_13_INCLUDE_

typedef struct tagPOINT3D //3D坐标系

{

float x

float y

float z

}POINT3D

typedef struct tagBALL //球

{

POINT3D cur_coor

POINT3D speed

float radius

}BALL

typedef struct tagBOX //球的长方体运动场所,中空

{

POINT3D angle_coor[8]//坐标,从下往上,顺时针

float length

float width

float height

}BOX

void init_box(BOX *mybox,POINT3D origi_coor,POINT3D LWH)

{

int i

mybox->height=LWH.x

mybox->width=LWH.y

mybox->height=LWH.z

for(i=0i<8i++)mybox->angle_coor[i]=origi_coor

mybox->angle_coor[1].x=origi_coor.x+LWH.x

mybox->angle_coor[2].x=origi_coor.x+LWH.x

mybox->angle_coor[2].y=origi_coor.y+LWH.y

mybox->angle_coor[3].y=origi_coor.y+LWH.y

for(i=4i<8i++)mybox->angle_coor[i].z=origi_coor.z+LWH.z

mybox->angle_coor[5].x=origi_coor.x+LWH.x

mybox->angle_coor[6].x=origi_coor.x+LWH.x

mybox->angle_coor[6].y=origi_coor.y+LWH.y

mybox->angle_coor[7].y=origi_coor.y+LWH.y

}

void move_in_box(BALL* myball,BOX mybox) //匀速运动

{

myball->cur_coor.x+=myball->speed.x

myball->cur_coor.y+=myball->speed.y

myball->cur_coor.z+=myball->speed.z

}

void hit_wall(BALL* myball,POINT3D dir)//撞墙

{

myball->speed.x*=dir.x

myball->speed.y*=dir.y

myball->speed.z*=dir.z

}

int coll_dete_rad_ign(BALL* myball,BOX mybox) //检测(忽略半径)

{

POINT3D dir

dir.x=1dir.y=1dir.z=1

if(myball->cur_coor.x<=mybox.angle_coor[0].x ||myball->cur_coor.x>=mybox.angle_coor[6].x)

dir.x=-1

if(myball->cur_coor.y<=mybox.angle_coor[0].y ||myball->cur_coor.y>=mybox.angle_coor[6].y)

dir.y=-1

if(myball->cur_coor.z<=mybox.angle_coor[0].z ||myball->cur_coor.z>=mybox.angle_coor[6].z)

dir.z=-1

if(dir.x==-1 ||dir.y==-1 ||dir.z==-1){hit_wall(myball,dir)return 1}

return 0

}

#endif

//BALL.H文件结束

/*Ball.c：测试代码*/

#include "Ball.h"

#include <stdio.h>

int main(void)

{

POINT3D origi

POINT3D LWH

BOX mybox

BALL myball

int i

origi.x=0origi.y=0origi.z=0

printf("矩形空间尺寸：")

scanf("%f%f%f",&LWH.x,&LWH.y,&LWH.z)

printf("球的初始坐标：")

scanf("%f%f%f",&myball.cur_coor.x,&myball.cur_coor.y,&myball.cur_coor.z)

printf("球的速度：")

scanf("%f%f%f",&myball.speed.x,&myball.speed.y,&myball.speed.z)

/* LWH.x=10LWH.y=10LWH.z=10

myball.cur_coor.x=5myball.cur_coor.y=5myball.cur_coor.z=5

myball.speed.x=0.2myball.speed.y=0.5myball.speed.z=1*/

i=0init_box(&mybox,origi,LWH)

printf("\n相关信息如下：\n")

printf("矩形空间尺寸--L:%f,W:%f,H:%f\n",LWH.x,LWH.y,LWH.z)

printf("球的初始坐标--X:%f,Y:%f,Z:%f\n",myball.cur_coor.x,myball.cur_coor.y,myball.cur_coor.z)

printf("球的初始速度--X:%f,Y:%f,Z:%f\n",myball.speed.x,myball.speed.y,myball.speed.z)

printf("碰撞点坐标如下：\n")

while(i<10)

{

if(coll_dete_rad_ign(&myball,mybox)==1)

{

i++

printf("%f,%f,%f\n",myball.cur_coor.x,myball.cur_coor.y,myball.cur_coor.z)

}

move_in_box(&myball,mybox)

}

return 0

}

#include<iostream>using namespace stdint main() { int mfloat i,h1,h2cout<<"请输入皮球初始高度："<<endlcin>>h1cout<<"请输入皮球d跳次数："<<endlcin>>mh2=h1for(i=1i<=mi++) { h2=h2+h1h1=h1/2} cout<<"第"<<m<<"次的反d高度是："<<h1<<endlcout<<"经过路程是:"<<h2<<endlreturn 0}

编写程序，求由键盘按顺时针方向输入n个顶点坐标的多边形周长。注：各顶点坐标以结构体表示，n值不超过10。输入：第一行输入一个整数，作为n值；以后每行两个浮点数，为多边形各顶点的坐标。输出：多边形的周长，精确到小数点后2位。样例1：输入4

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