C语言实现旋转球体源码分享

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#include

#include

#define PI 3.1415926

#define SX 8

#define SY 16

#define DX PI / SX

#define DY PI * 2 / SY

#define X(a, b) (cx + v[a][b].x * r), (cy + v[a][b].y * r)

typedef struct { double x, y; } Vec;

void calc(double i, double j, double rot, Vec* v) {

double x = sin(i) * cos(j), y = sin(i) * sin(j), z = cos(i),

s = sin(rot), c = cos(rot), c1 = 1 - c, u = 1 / sqrt(3.0f), u2 = u * u;

v->x = x * (c + u2 * c1) + y * (u2 * c1 - u * s) + z * (u2 * c1 + u * s);

v->y = x * (u2 * c1 + u * s) + y * (c + u2 * c1) + z * (u2 * c1 - u * s);

}

int main() {

HWND hwnd = GetConsoleWindow(); HDC hdc1 = GetDC(hwnd);

double rot = 0;

while(1) {

RECT rect; GetClientRect(hwnd, &rect); int w = rect.right, h = rect.bottom, cx = w / 2, cy = h / 2, r = h * 0.375;

HDC hdc2 = CreateCompatibleDC(hdc1); HBITMAP bmp = CreateCompatibleBitmap(hdc1, w, h); SelectObject(hdc2, bmp);

SelectObject(hdc2, GetStockObject(WHITE_PEN));

Vec v[SX + 1][SY + 1];

for(int i = 0; i

for(int i = 0; i

MoveToEx(hdc2, X(i, j), NULL); LineTo(hdc2, X(i + 1, j));

MoveToEx(hdc2, X(i, j), NULL); LineTo(hdc2, X(i, j + 1));

}

BitBlt(hdc1, 0, 0, w, h, hdc2, 0, 0, SRCCOPY); DeleteObject(bmp); DeleteDC(hdc2);

rot += 0.01; Sleep(5);

}

}