95 lines
2.3 KiB
C
95 lines
2.3 KiB
C
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#include <stdio.h>
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#include <math.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <windows.h>
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void SetColor(int Mode){
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//Get Color
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int color = rand()%16;
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if(color == 0 ) color = 0x04;
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//Set Color for Console
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HANDLE hCon = GetStdHandle(STD_OUTPUT_HANDLE);
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if(Mode == 0){
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SetConsoleTextAttribute(hCon,FOREGROUND_GREEN);
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}else{
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SetConsoleTextAttribute(hCon,color);
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}
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}
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#define PI 3.14159265359
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float sx,sy;
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float sdCircle(float px,float py,float r){
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float dx = px - sx, dy = py-sy;
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return sqrtf(dx * dx + dy * dy) - r;
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}
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float opUnion(float d1,float d2){
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return d1 < d2 ? d1 : d2;
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}
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#define T px + scale * r * cosf(theta), py + scale * r * sin(theta)
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float f(float px, float py, float theta, float scale, int n){
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float d = 0.0f;
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for(float r = 0.0f; r < 0.8f; r += 0.02f){
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d = opUnion(d,sdCircle(T, 0.05f * scale * (0.95f - r)));
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}
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if(n > 0){
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for(int t = -1; t <=1; t+=2){
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float tt = theta + t * 1.8f;
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float ss = scale * 0.9f;
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for(float r = 0.2f; r < 0.8f; r += 0.1f){
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d = opUnion(d, f(T, tt, ss*0.5f, n-1));
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ss *= 0.8f;
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}
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}
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}
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}
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int main(int argc, char * argv[]){
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srand((unsigned)time(NULL));
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int n = argc > 1 ? atoi(argv[1]) : 3;
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int SetCnt = 0;
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int CntTotal = 0;
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float fReverseCnt = 0;
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int ColorIndex = 0;
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for(sy = 0.8f; sy > 0.0f; sy -= 0.02f, putchar('\n') ){
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ColorIndex++;
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SetCnt = 0;
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for(sx = -0.35f; sx < 0.35f; sx += 0.01f){
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if(f(0, 0, PI * 0.5f, 1.0f, n) < 0){
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if(ColorIndex%5 == 0 ){
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SetColor(1);
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}else{
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if(SetCnt < 3){
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SetCnt++;
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SetColor(1);
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fReverseCnt = sx + 0.01f;
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}else if(sx >= fabs(fReverseCnt)){
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SetColor(1);
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}else{
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SetColor(0);
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}
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}
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putchar(' ');
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}else{
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putchar(' ');
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}
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}
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}
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return 0;
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}
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