/// <summary>
/// <para>Draw a sphere from center to radius</para>
/// </summary>
static public void Sphere(SurfaceMap surfaceMap, Vector3Int center, int radius, int material, bool contour)
{
if (center.x < 0 || center.y < 0 || center.z < 0)
{
throw new Exception("PointBelowZero");
}
if (center.x >= surfaceMap.resolution || center.y >= surfaceMap.resolution || center.z >= surfaceMap.resolution)
{
throw new Exception("PointAboweResolution");
}
int radius2 = radius * radius;
for (int z = center.z - radius; z <= center.z + radius && z < surfaceMap.resolution; z++)
{
if (z < 0)
{
z = 0;
}
for (int y = center.y - radius; y <= center.y + radius && y < surfaceMap.resolution; y++)
{
if (y < 0)
{
y = 0;
}
for (int x = center.x - radius; x <= center.x + radius && x < surfaceMap.resolution; x++)
{
if (x < 0)
{
x = 0;
}
int pointOnSphere = (int)(Mathf.Pow(x - center.x, 2) + Mathf.Pow(y - center.y, 2) + Mathf.Pow(z - center.z, 2));
if (pointOnSphere <= radius2)
{
surfaceMap.SetBiome(x, y, z, 1);
surfaceMap.SetMaterial(x, y, z, material);
if (contour && (
(int)(Mathf.Pow(x - center.x + 1, 2) + Mathf.Pow(y - center.y, 2) + Mathf.Pow(z - center.z, 2)) > radius2 ||
(int)(Mathf.Pow(x - center.x, 2) + Mathf.Pow(y - center.y + 1, 2) + Mathf.Pow(z - center.z, 2)) > radius2 ||
(int)(Mathf.Pow(x - center.x, 2) + Mathf.Pow(y - center.y, 2) + Mathf.Pow(z - center.z + 1, 2)) > radius2 ||
(int)(Mathf.Pow(x - center.x - 1, 2) + Mathf.Pow(y - center.y, 2) + Mathf.Pow(z - center.z, 2)) > radius2 ||
(int)(Mathf.Pow(x - center.x, 2) + Mathf.Pow(y - center.y - 1, 2) + Mathf.Pow(z - center.z, 2)) > radius2 ||
(int)(Mathf.Pow(x - center.x, 2) + Mathf.Pow(y - center.y, 2) + Mathf.Pow(z - center.z - 1, 2)) > radius2 ||
x == 0 || x == surfaceMap.resolution - 1 ||
y == 0 || y == surfaceMap.resolution - 1 ||
z == 0 || y == surfaceMap.resolution - 1)
)
{
surfaceMap.SetContour(x, y, z);
}
}
//else surfaceMap.SetMaterial(x, y, z, 0);
}
}
}
}
/// <summary>
/// <para>Draw a straight line between p1 & p2</para>
/// <para>Mode: 0 - overlay, 1 - add, 2 - inverse</para>
/// </summary>
static public void Line(SurfaceMap surfaceMap, Vector3Int p1, Vector3Int p2, int width, int material, bool contour, int mode)
{
if (p1.x < 0 || p1.x >= surfaceMap.resolution || p1.y < 0 || p1.y >= surfaceMap.resolution || p1.z < 0 || p1.z >= surfaceMap.resolution)
{
throw new Exception("p1OutOfBounds");
}
if (p2.x < 0 || p2.x >= surfaceMap.resolution || p2.y < 0 || p2.y >= surfaceMap.resolution || p2.z < 0 || p2.z >= surfaceMap.resolution)
{
throw new Exception("p2OutOfBounds");
}
if (mode < 0 || mode > 2)
{
throw new Exception("InvalidMode");
}
if (Vector3Int.Distance(Vector3Int.zero, p1) > Vector3Int.Distance(Vector3Int.zero, p2))
{
Vector3Int tmp = p2;
p2 = p1;
p1 = tmp;
}
Vector3Int direction = p2 - p1;
int x, y, z;
for (float t = 0.0f; t <= 1.0f; t = t + (1.0f / (2 * Vector3.Distance(p1, p2))))
{
int offset = 0;
int widthCopy = width;
while (widthCopy > 0)
{
if (width % 2 == 1)
{
x = p1.x + offset + (int)(direction.x * t);
y = p1.y + offset + (int)(direction.y * t);
z = p1.z + offset + (int)(direction.z * t);
}
else
{
x = p1.x - offset + (int)(direction.x * t);
y = p1.y - offset + (int)(direction.y * t);
z = p1.z - offset + (int)(direction.z * t);
}
offset++;
widthCopy--;
surfaceMap.SetMaterial(x, y, z, material);
if (contour)
{
surfaceMap.SetContour(x, y, z);
}
}
}
}
