C语言系统编程与图形开发.zip_c

#include <graphics.h> #include <conio.h> #include <math.h> #define PI 3.1415926535 #define WIDTH 640 #define HEIGHT 480 // 定义字符元素结构体 struct ELEMENT { TCHAR c; int x, y; int xo, yo; int xd, yd; }; // 定义全局变量 TCHAR g_beatles[] // 歌词 = _T("Yesterday,\nAll my troubles seemed so far away,\nNow it looks as though they're here to stay,\nOh, I believe in yesterday.\nSuddenly,\nI'm not half the man I used to be,\nThere's a shadow hanging over me,\nOh, yesterday came suddenly.\nWhy she\nHad to go I don't know, she wouldn't say.\nI said,\nSomething wrong, now I long for yesterday.\nYesterday,\nLove was such an easy game to play,\nNow I need a place to hide away,\nOh, I believe in yesterday.\nWhy she\nHad to go I don't know, she wouldn't say.\nI said,\nSomething wrong, now I long for yesterday.\nYesterday,\nLove was such an easy game to play,\nNow I need a place to hide away,\nOh, I believe in yesterday."); char g_data[] // 字符坐标数据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int an = -1; // 动画“值” int dir = -1; // 动画运行方向 bool bAni = false; // 动画运行标志 ELEMENT g_Element[520]; // 字符元素数组。共 520 个字符。 // 初始化每个字符元素 void init() { TCHAR s[45]; // 最长的一句歌词有 44 个字符 int x, y; // 每个字符的坐标 int rowwidth; // 每句歌词的宽度 int ig = 0, ir = 0, ie = 0; // 下标变量(全部歌词下标、一句歌词下标、字符元素下标) y = (HEIGHT - 470) / 2; // 计算第一行的 y 坐标 // 计算每个字符元素的起始坐标 while(ie < 520) { if ((g_beatles[ig] != '\n') && (g_beatles[ig] != 0)) { s[ir++] = g_beatles[ig]; } else { s[ir] = 0; rowwidth = textwidth(s); x = (WIDTH - rowwidth) / 2; for(int i = 0; i < ir; i++) { if (s[i] != ' ') { g_Element[ie].c = s[i]; g_Element[ie].x = g_Element[ie].xo = x; g_Element[ie].y = g_Element[ie].yo = y; outtextxy(g_Element[ie].xo, y, s[i]); x += textwidth(g_Element[ie].c); ie++; } else x += textwidth(' '); } ir = 0; y += 19; } ig++; } // 解码每个字符元素的终止坐标 for (int n = 0; n < 520; n++) { int p = g_data[n * 3] * 1600 + g_data[n * 3 + 1] * 40 + g_data[n * 3 + 2] - 78768; g_Element[n].yd = p % 284; g_Element[n].xd = (p - g_Element[n].yd) / 284; g_Element[n].yd += 74 + (HEIGHT - 470) / 2; g_Element[n].xd += 111 + (WIDTH - 450) / 2; } // 显示刷新 FlushBatchDraw(); } // 动画 void ani() { int i, m, n; // 计算需要运动的字符元素 for (n = 0; n < 130; n++) { m = 519 - n; if ((an - n >= 0) && (an - n <= 30)) { double b = (cos((an - n) * PI / 30) + 1) / 2; double a = 1 - b; for (i = 0; i <= 130; i += 130) { g_Element[n + i].x = int((g_Element[n + i].xd) * a + g_Element[n + i].xo * b + 0.5); g_Element[n + i].y = int((g_Element[n + i].yd) * a + g_Element[n + i].yo * b + 0.5); g_Element[m - i].x = int((g_Element[m - i].xd) * a + g_Element[m - i].xo * b + 0.5); g_Element[m - i].y = int((g_Element[m - i].yd) * a + g_Element[m - i].yo * b + 0.5); } } } // 显示全部字符元素 for (i = 0; i < 520; i++) outtextxy(g_Element[i].x, g_Element[i].y, g_Element[i].c); an += dir; if ((an < 0) || (an > 160)) bAni = false; } // 动画事件 void anim() { dir *= -1; // 改变动画方向 if ((an < 0) || (an > 160)) bAni = true; } // 主函数 void main() { // 环境初始化 initgraph(640, 480); // 创建绘图窗口 setbkcolor(WHITE); // 设置背景色为白色 setcolor(RGB(64, 64, 64)); // 设置文字颜色为深灰色 setbkmode(TRANSPARENT); // 设置文字背景为透明 cleardevice(); // 清除屏幕 BeginBatchDraw(); // 设置批量绘图模式 setfont(-15, 0, _T("Arial"), 0, 0, FW_BOLD, false, false, false, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, ANTIALIASED_QUALITY, DEFAULT_PITCH); // 设置字体 // 初始化每个字符元素 init(); // 动画过程 char c = 0; while(c != 27) { if (_kbhit()) { c = _getch(); anim(); } if (bAni) { cleardevice(); // 清屏 ani(); // 执行动画 FlushBatchDraw(); // 显示刷新 } Sleep(30); } // 结束并清理资源 EndBatchDraw(); closegraph(); }