实现的要求：
（1）随着游戏的进行，针的速度越来越快，游戏难度越大；
（2）中间显示为“旋转蛇”的图像，每被针击中一次，换一次颜色；
（3）在右边新增一位玩家，并分别制作出计两位玩家的合作版和两个分别算分的竞争版。
代码：
合作版：
#include
#include
#include
#include
int linenum = 0;
int hy()
{
float PI = 3.1415926;
int x, y, r, i;
float h = rand() % 180;
x = 400, y = 300;
float offset, totaloffset = 0;
COLORREF color1 = HSVtoRGB(linenum*5, 0.9, 0.8);
COLORREF color2 = HSVtoRGB(linenum *5+ 180, 0.9, 0.7);
for (r =60; r > 0; r = r - 10) {
int left = x - r;
int top = y - r;
int right = x + r;
int bottom = y + r;
for (i = 0; i < 20; i++) {
offset = i * PI / 10 + totaloffset;
setfillcolor(color1);
solidpie(left, top, right, bottom, offset, offset + 2 * PI / 60);
setfillcolor(RGB(255, 255, 255));
solidpie(left, top, right, bottom, offset + 2 * PI / 60, offset + 3 * PI / 60);
setfillcolor(color2);
solidpie(left, top, right, bottom, offset + 3 * PI / 60, offset + 5 * PI / 60);
setfillcolor(RGB(0, 0, 0));
solidpie(left, top, right, bottom, offset + 5 * PI / 60, offset + 6 * PI / 60);
}
totaloffset = totaloffset + PI / 20;
}
return 0;
}
int main() {
const float pi = 3.1415926;
int height, width;
height = 600, width = 800;
initgraph(width, height);
setbkcolor(RGB(255, 255, 255));
setlinestyle(PS_SOLID, 3);
float lineLength = 150, xend, yend, rotatespeeed = pi / 360;
float angles[1000];
int score = 0;
int i;
BeginBatchDraw();
while (1) {
cleardevice();
setlinecolor(RGB(0, 0, 0));
line(0, height / 2, lineLength, height / 2);
line(650, height / 2, 800, height / 2);
for (i = 0; i < linenum; i++) {
angles[i] = angles[i] + rotatespeeed;
if (angles[i] > 2 * pi) {
angles[i] = angles[i] - 2 * pi;
}
xend = lineLength * cos(-angles[i]) + width / 2;
yend = lineLength * sin(-angles[i]) + height / 2;
setlinecolor(RGB(0, 0, 255));
if (i == linenum - 1) {
setlinecolor(RGB(255, 0, 0));
}
line(xend, yend, width / 2, height / 2);
}
if (_kbhit() && rotatespeeed != 0) {
char input = _getch();
if (input == ' ') {
linenum++;
rotatespeeed += pi / 7200;
angles[linenum - 1] = pi;
xend = lineLength * cos(-angles[i - 1]) + width / 2;
yend = lineLength * sin(-angles[i - 1]) + height / 2;
line(xend, yend, width / 2, height / 2);
for (i = 0; i < linenum - 1; i++) {
if (fabs(angles[linenum - 1] - angles[i]) < pi / 60) {
rotatespeeed = 0;
break;
}
}
score = score + 1;
}
if (input == 'a') {
linenum++;
rotatespeeed += pi / 7200;
angles[linenum - 1] = 0;
xend = lineLength * cos(-angles[i - 1]) + width / 2;
yend = lineLength * sin(-angles[i - 1]) + height / 2;
line(xend, yend, width / 2, height / 2);
for (i = 0; i < linenum - 1; i++) {
if (fabs(angles[linenum - 1] - angles[i]) < pi / 60) {
rotatespeeed = 0;
break;
}
}
score = score + 1;
}
}
hy();
setlinecolor(HSVtoRGB(0, 0.9, 0.8));
TCHAR s[20];
_swprintf(s, _T("%d"), score);
settextstyle(50, 0, _T("TIMES"));
settextcolor(RGB(50, 50, 50));
outtextxy(65, 200, s);
FlushBatchDraw();
Sleep(10);
}
closegraph();
return 0;
}
竞技版：
#include
#include
#include
#include
int linenum = 0;
int hy()
{
float PI = 3.1415926;
int x, y, r, i;
float h = rand() % 180;
x = 400, y = 300;
float offset, totaloffset = 0;
COLORREF color1 = HSVtoRGB(linenum*5, 0.9, 0.8);
COLORREF color2 = HSVtoRGB(linenum *5+ 180, 0.9, 0.7);
for (r =60; r > 0; r = r - 10) {
int left = x - r;
int top = y - r;
int right = x + r;
int bottom = y + r;
for (i = 0; i < 20; i++) {
offset = i * PI / 10 + totaloffset;
setfillcolor(color1);
solidpie(left, top, right, bottom, offset, offset + 2 * PI / 60);
setfillcolor(RGB(255, 255, 255));
solidpie(left, top, right, bottom, offset + 2 * PI / 60, offset + 3 * PI / 60);
setfillcolor(color2);
solidpie(left, top, right, bottom, offset + 3 * PI / 60, offset + 5 * PI / 60);
setfillcolor(RGB(0, 0, 0));
solidpie(left, top, right, bottom, offset + 5 * PI / 60, offset + 6 * PI / 60);
}
totaloffset = totaloffset + PI / 20;
}
return 0;
}
int main() {
const float pi = 3.1415926;
int height, width;
height = 600, width = 800;
initgraph(width, height);
setbkcolor(RGB(255, 255, 255));
setlinestyle(PS_SOLID, 3);
float lineLength = 150, xend, yend, rotatespeeed = pi / 360;
float angles[1000];
int score1= 0,score2=0;
int i;
BeginBatchDraw();
while (1) {
cleardevice();
setlinecolor(RGB(0, 0, 0));
line(0, height / 2, lineLength, height / 2);
line(650, height / 2, 800, height / 2);
for (i = 0; i < linenum; i++) {
angles[i] = angles[i] + rotatespeeed;
if (angles[i] > 2 * pi) {
angles[i] = angles[i] - 2 * pi;
}
xend = lineLength * cos(-angles[i]) + width / 2;
yend = lineLength * sin(-angles[i]) + height / 2;
setlinecolor(RGB(0, 0, 255));
if (i == linenum - 1) {
setlinecolor(RGB(255, 0, 0));
}
line(xend, yend, width / 2, height / 2);
}
if (_kbhit() && rotatespeeed != 0) {
char input = _getch();
if (input == ' ') {
linenum++;
rotatespeeed += pi / 7200;
angles[linenum - 1] = pi;
xend = lineLength * cos(-angles[i - 1]) + width / 2;
yend = lineLength * sin(-angles[i - 1]) + height / 2;
line(xend, yend, width / 2, height / 2);
for (i = 0; i < linenum - 1; i++) {
if (fabs(angles[linenum - 1] - angles[i]) < pi / 60) {
rotatespeeed = 0;
break;
}
}
score1 = score1 + 1;
}
if (input == 'a') {
linenum++;
rotatespeeed += pi / 7200;
angles[linenum - 1] = 0;
xend = lineLength * cos(-angles[i - 1]) + width / 2;
yend = lineLength * sin(-angles[i - 1]) + height / 2;
line(xend, yend, width / 2, height / 2);
for (i = 0; i < linenum - 1; i++) {
if (fabs(angles[linenum - 1] - angles[i]) < pi / 60) {
rotatespeeed = 0;
break;
}
}
score2 = score2 + 1;
}
}
hy();
setlinecolor(HSVtoRGB(0, 0.9, 0.8));
TCHAR s[20];
_swprintf(s, _T("%d"), score1);
settextstyle(50, 0, _T("TIMES"));
settextcolor(RGB(50, 50, 50));
outtextxy(65, 200, s);
setlinecolor(HSVtoRGB(0, 0.9, 0.8));
TCHAR s1[20];
_swprintf(s1, _T("%d"), score2);
settextstyle(50, 0, _T("TIMES"));
settextcolor(RGB(50, 50, 50));
outtextxy(735, 200, s1);
FlushBatchDraw();
Sleep(10);
}
closegraph();
return 0;
} 运行截图：
作者的一些话：我设置的左边玩家是空格发针，右边是a,这个可以随便设置，看过我之前文章的小伙伴应该知道我这期就是个缝合怪，不过不要紧啦，第一次做了双人游戏还是很高兴。
然后是基本每期基本都说说的安全性（说是安全性不如说是vs的bug）：如果不设置的很多正常代码其实也无法运行，安全性对于个人开发者和学者其实必要性不是很大，初学者建议关闭，关闭方法是在调试按钮上选择最后一项，在选择c/c+，在将警告视为错误设置为否，在点击c/c++小三角，在代码生成的安全检测中选择禁用安全检查。
本学渣写文章也不易，希望大家点个赞，大家一起加油学习啊。
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