public static float dot(vector v1, vector v2)
{
return((v1.x * v2.x) + (v1.y * v2.y) + (v1.z * v2.z) + (v1.w * v2.w));
}
public Side(vector[] ps, Color _c, vector direction)
{
points = ps;
c = _c;
dir = direction;
}
public void fillRect(vector[] ps)
{
vector d = dir;
d = Projector.projectVector(d);
/*
* if (MathF.Acos((vector.dot(d, vector.front)) / (MathF.Sqrt(vector.dot(d, d)) * MathF.Sqrt(vector.dot(vector.front, vector.front)))) / MathF.PI > 0.6f)
* {
* return;
* }*/
vector s = new vector(0, 0);
vector e = new vector(0, 0);
s = new vector(100000, 100000);
e = new vector(-1, -1);
for (int i = 0; i < 4; i++)
{
if (ps[i].x < s.x)
{
s.x = ps[i].x;
}
if (ps[i].y < s.y)
{
s.y = ps[i].y;
}
if (ps[i].x > e.x)
{
e.x = ps[i].x;
}
if (ps[i].y > e.y)
{
e.y = ps[i].y;
}
}
vector A = new vector(ps[0].x, ps[0].y);
vector B = new vector(ps[1].x, ps[1].y);
vector C = new vector(ps[2].x, ps[2].y);
vector D = new vector(ps[3].x, ps[3].y);
float z = (ps[0].z + ps[1].z + ps[2].z + ps[3].z) / 4;
float area = triangleArea(A, B, C) + triangleArea(A, C, D);
//float dist = ((d.normalize() - settings.light.normalize())/4).magnitude();
float dist = 1 /* - ((MathF.Acos((vector.dot(d,settings.light))/(MathF.Sqrt(vector.dot(d,d)) * MathF.Sqrt(vector.dot(settings.light,settings.light)))) / MathF.PI) / 3)*/;
Color pc = Color.FromArgb((int)(c.R * dist), (int)(c.G * dist), (int)(c.B * dist));
for (int x = (int)s.x; x <= (int)e.x; x++)
{
for (int y = (int)s.y; y <= (int)e.y; y++)
{
vector p = new vector(x, y);
float ar = triangleArea(A, p, D) + triangleArea(D, p, C) + triangleArea(C, p, B) + triangleArea(p, B, A);
if (ar <= area + 0.01f)
{
Program.setPixel(x, y, new pixel(z, pc));
}
}
}
}
public bool same(vector c)
{
return(c == center());
}
