Descubre la Programación : Muestra

class vector {
  double x;double y;double z;
  public vector(double nx,double ny){x = nx;y = ny;z = 0;}
  public vector(double nx,double ny,double nz){x = nx;y = ny;z = nz;}
}

vector p[] = {
  new vector(1, -1, -1),
  new vector(1, 1, -1),
  new vector(1, 1, 1),
  new vector(1, -1, 1),
  new vector(-1, -1, -1),
  new vector(-1, 1, -1),
  new vector(-1, 1, 1),
  new vector(-1, -1, 1)
};

int l[][] = {
  {0, 4},
  {4, 5},
  {0, 0},//{5, 0},
  {0, 0},//{4, 3},
  {3, 0},
  {3, 7},
  {7, 4},
  {0, 1},
  {1, 5},
  {1, 2},
  {2, 6},
  {6, 5},
  {2, 3},
  {0, 0},//{3, 1},
  {6, 7},
  {0, 0},//{7, 2},
  {0, 0},//{4, 6},
  {0, 0}//{1, 6}
};

int utp[] = {
  0,
  1,
  2,
  3,
  4,
  5,
  6,
  7,
  8,
  9,
  10,
  11,
  12,
  13,
  14,
  15,
  16,
  17
};

int ox[] = utp;

int perspective[][] = {{1, 0, 0},
											 {0, 1, 0},
                       {0, 0, 0}};

int size = 40;
double ax = 0;
double ay = 0;
double az = 0;
int lx = 0;
int ly = 0;
double crt = 0.1;

void bresenhamLine(double x1, double y1, double x2, double y2) {
  int d = 0;
  //strokeWeight(3);
  int dx = round(abs(x2 - x1));
  int dy = round(abs(y2 - y1));
  int dx2 = 2 * dx;
  int dy2 = 2 * dy;
  int ix = x1 < x2 ? 1 : -1;
  int iy = y1 < y2 ? 1 : -1;
  double x = x1;
  double y = y1;
  if (dx >= dy) {
    while (true) {
      point(x, y);
      if (floor(x) == floor(x2))
        break;
      x += ix;
      d += dy2;
      if (d > dx) {
        y += iy;
        d -= dx2;
      }
    }
  } else {
    while (true) {
      point(x, y);
      if (floor(y) == floor(y2))
        break;
      y += iy;
      d += dx2;
      if (d > dy) {
        x += ix;
        d -= dy2;
      }
    }
  }
}

double atan2(double y, double x) {
    double u = atan(y/x);
    if( x < 0.0 ) {
        if( u > 0.0 )
            u -= PI;
        else
            u += PI;
    }
    return u;
}

vector rotateZ(vector base) {
  return new vector((base.x*cos(az)) + (base.y*(-sin(az))), (base.x*sin(az)) + (base.y*cos(az)), base.z);
}

vector rotateY(vector base) {
  return new vector((base.x*cos(ay))+(base.z*sin(ay)), (base.y), (base.x*(-sin(ay))) + (base.z*cos(ay)));
}

vector rotateX(vector base) {
  return new vector((base.x), (base.y*cos(ax)) + (base.z*(-sin(ax))), (base.y*sin(ax)) + (base.z*cos(ax)));
}

vector rotate(vector bass) {
  return rotateX(rotateY(rotateZ(bass)));
}

vector getPoint(vector base) {
  return new vector((base.x*perspective[0][0]) + (base.y*perspective[0][1]) + (base.z*perspective[0][2]), (base.x*perspective[1][0]) + (base.y*perspective[1][1]) + (base.z*perspective[1][2]));
}

void main() {
  animate(draw);
}

double dist(vector p1, vector p2) {
    return sqrt(pow(p1.x - p2.x, 2) + pow(p1.y - p2.y, 2) + pow(p1.z - p2.z, 2));
}

vector avg(vector p1, vector p2) {
  return new vector((p1.x+p2.x)/2, (p1.y+p2.y)/2, (p1.z+p2.z)/2);
}

double fullDist = dist(new vector(-1, -1, -1), new vector(1, 1, 1));

double factor = 1;

double max(double a, double b) {
  return a>b?a:b;
}

double min(double a, double b) {
  return a<b?a:b;
}

double constrain(double val, double down, double up) {
  return max(min(val, up), down);
}

double dst(int i) {
  return (1-vf) + (vf/(dist(rotate(p[i]), new vector(0, 0, -1))*factor));
}

double map(double s, double a1, double a2, double b1, double b2) {
	return b1+(s-a1)*(b2-b1)/(a2-a1);
}

void Line(double x1, double y1, double x2, double y2) {
  bresenhamLine(x1, ((y1-160)*cos(map(x1, 0, 320, -PI, PI)*crt))+160, x2, ((y2-160)*cos(map(x2, 0, 320, -PI, PI)*crt))+160);
}

double vf = 0.5;

void draw3Dline(int i, int j) {
  Line(160+(getPoint(rotate(p[i])).x*size*dst(i)), 160+(getPoint(rotate(p[i])).y*size*dst(i)), 160+(getPoint(rotate(p[j])).x*size*dst(j)), 160+(getPoint(rotate(p[j])).y*size*dst(j)));
}

void draw3Dobject() {
  for (int i = l.length-1; i >= 0; i--) {
    if (utp[i] > -1) {
      draw3Dline(l[utp[i]][0], l[utp[i]][1]);
    }
  }
}

int uk = 0;

double getDist(int line) {
  int p1 = l[line][0];
  int p2 = l[line][1];
  return (dst(p1)+dst(p2))/2;
}

void orderPoints() {
  int c;
  for (int i = 0; i < 17*18; i++) {
    int i2 = i % 17;
    int a = utp[i2];
    int b = utp[i2+1];
    if (getDist(b) > getDist(a)) {
      utp[i2+1] = a;
      utp[i2] = b;
    }
  }
}

void draw() {
  double mx = mouseX;
  vf = mx/320;
  background(20);
  stroke(51, 255, 51);
  fill(51, 255, 51);
  utp = ox;
  strokeWeight(1);
  text("RX: " + round((ax/PI)*180), 0, 20);
  text("RY: " + round((ay/PI)*180), 0, 40);
  text("RZ: " + round((az/PI)*180), 0, 60);
  draw3Dobject();
  //ax += 0.03;
  //ay += 0.02;
  //az += 0.01;
  orderPoints();
  if (keyPressed) {
    if (key == "a") {
      ax += PI/360;
    }
    if (key == "z") {
      ax -= PI/360;
    }
    
    if (key == "s") {
      ay += PI/360;
    }
    if (key == "x") {
      ay -= PI/360;
    }
    
    if (key == "d") {
      az += PI/360;
    }
    if (key == "c") {
      az -= PI/360;
    }
    
    if (key == "up") {
      size += 7;
    }
    if (key == "down") {
      size -= 7;
    }
    
    size = max(0, size);
  }
  stroke(0);
  for (int y = 0; y < 320; y += 2) {
    line(0, y, 319, y);
  }
}

Programado por segfaultdev

2 votos 179 descargas 31 usos