// ==== mesh generation =======================================================================================
private void CreateFace(ushort voxel, Facing facing, ColliderType colliderType, int x, int y, int z)
{
Voxel voxelComponent = Engine.GetVoxelType(voxel);
List <int> FacesList = Faces[voxelComponent.VSubmeshIndex];
// ==== Vertices ====
// add the positions of the vertices depending on the facing of the face
if (facing == Facing.forward)
{
Vertices.Add(new Vector3(x + 0.5001f, y + 0.5001f, z + 0.5f));
Vertices.Add(new Vector3(x - 0.5001f, y + 0.5001f, z + 0.5f));
Vertices.Add(new Vector3(x - 0.5001f, y - 0.5001f, z + 0.5f));
Vertices.Add(new Vector3(x + 0.5001f, y - 0.5001f, z + 0.5f));
if (colliderType == ColliderType.cube && Engine.GenerateColliders)
{
SolidColliderVertices.Add(new Vector3(x + 0.5f, y + 0.5f, z + 0.5f));
SolidColliderVertices.Add(new Vector3(x - 0.5f, y + 0.5f, z + 0.5f));
SolidColliderVertices.Add(new Vector3(x - 0.5f, y - 0.5f, z + 0.5f));
SolidColliderVertices.Add(new Vector3(x + 0.5f, y - 0.5f, z + 0.5f));
}
}
else if (facing == Facing.up)
{
Vertices.Add(new Vector3(x - 0.5001f, y + 0.5f, z + 0.5001f));
Vertices.Add(new Vector3(x + 0.5001f, y + 0.5f, z + 0.5001f));
Vertices.Add(new Vector3(x + 0.5001f, y + 0.5f, z - 0.5001f));
Vertices.Add(new Vector3(x - 0.5001f, y + 0.5f, z - 0.5001f));
if (colliderType == ColliderType.cube && Engine.GenerateColliders)
{
SolidColliderVertices.Add(new Vector3(x - 0.5f, y + 0.5f, z + 0.5f));
SolidColliderVertices.Add(new Vector3(x + 0.5f, y + 0.5f, z + 0.5f));
SolidColliderVertices.Add(new Vector3(x + 0.5f, y + 0.5f, z - 0.5f));
SolidColliderVertices.Add(new Vector3(x - 0.5f, y + 0.5f, z - 0.5f));
}
}
else if (facing == Facing.right)
{
Vertices.Add(new Vector3(x + 0.5f, y + 0.5001f, z - 0.5001f));
Vertices.Add(new Vector3(x + 0.5f, y + 0.5001f, z + 0.5001f));
Vertices.Add(new Vector3(x + 0.5f, y - 0.5001f, z + 0.5001f));
Vertices.Add(new Vector3(x + 0.5f, y - 0.5001f, z - 0.5001f));
if (colliderType == ColliderType.cube && Engine.GenerateColliders)
{
SolidColliderVertices.Add(new Vector3(x + 0.5f, y + 0.5f, z - 0.5f));
SolidColliderVertices.Add(new Vector3(x + 0.5f, y + 0.5f, z + 0.5f));
SolidColliderVertices.Add(new Vector3(x + 0.5f, y - 0.5f, z + 0.5f));
SolidColliderVertices.Add(new Vector3(x + 0.5f, y - 0.5f, z - 0.5f));
}
}
else if (facing == Facing.back)
{
Vertices.Add(new Vector3(x - 0.5001f, y + 0.5001f, z - 0.5f));
Vertices.Add(new Vector3(x + 0.5001f, y + 0.5001f, z - 0.5f));
Vertices.Add(new Vector3(x + 0.5001f, y - 0.5001f, z - 0.5f));
Vertices.Add(new Vector3(x - 0.5001f, y - 0.5001f, z - 0.5f));
if (colliderType == ColliderType.cube && Engine.GenerateColliders)
{
SolidColliderVertices.Add(new Vector3(x - 0.5f, y + 0.5f, z - 0.5f));
SolidColliderVertices.Add(new Vector3(x + 0.5f, y + 0.5f, z - 0.5f));
SolidColliderVertices.Add(new Vector3(x + 0.5f, y - 0.5f, z - 0.5f));
SolidColliderVertices.Add(new Vector3(x - 0.5f, y - 0.5f, z - 0.5f));
}
}
else if (facing == Facing.down)
{
Vertices.Add(new Vector3(x - 0.5001f, y - 0.5f, z - 0.5001f));
Vertices.Add(new Vector3(x + 0.5001f, y - 0.5f, z - 0.5001f));
Vertices.Add(new Vector3(x + 0.5001f, y - 0.5f, z + 0.5001f));
Vertices.Add(new Vector3(x - 0.5001f, y - 0.5f, z + 0.5001f));
if (colliderType == ColliderType.cube && Engine.GenerateColliders)
{
SolidColliderVertices.Add(new Vector3(x - 0.5f, y - 0.5f, z - 0.5f));
SolidColliderVertices.Add(new Vector3(x + 0.5f, y - 0.5f, z - 0.5f));
SolidColliderVertices.Add(new Vector3(x + 0.5f, y - 0.5f, z + 0.5f));
SolidColliderVertices.Add(new Vector3(x - 0.5f, y - 0.5f, z + 0.5f));
}
}
else if (facing == Facing.left)
{
Vertices.Add(new Vector3(x - 0.5f, y + 0.5001f, z + 0.5001f));
Vertices.Add(new Vector3(x - 0.5f, y + 0.5001f, z - 0.5001f));
Vertices.Add(new Vector3(x - 0.5f, y - 0.5001f, z - 0.5001f));
Vertices.Add(new Vector3(x - 0.5f, y - 0.5001f, z + 0.5001f));
if (colliderType == ColliderType.cube && Engine.GenerateColliders)
{
SolidColliderVertices.Add(new Vector3(x - 0.5f, y + 0.5f, z + 0.5f));
SolidColliderVertices.Add(new Vector3(x - 0.5f, y + 0.5f, z - 0.5f));
SolidColliderVertices.Add(new Vector3(x - 0.5f, y - 0.5f, z - 0.5f));
SolidColliderVertices.Add(new Vector3(x - 0.5f, y - 0.5f, z + 0.5f));
}
}
// ==== UVs =====
float tUnit = Engine.GetTextureUnit(voxel);
Vector2 tOffset = Engine.GetTextureOffset(voxel, facing); // get texture offset for this voxel type
float pad = tUnit * Engine.TexturePadding;
UVs.Add(new Vector2(tUnit * tOffset.x + pad, tUnit * tOffset.y + tUnit - pad)); // top left
UVs.Add(new Vector2(tUnit * tOffset.x + tUnit - pad, tUnit * tOffset.y + tUnit - pad)); // top right
UVs.Add(new Vector2(tUnit * tOffset.x + tUnit - pad, tUnit * tOffset.y + pad)); // bottom right
UVs.Add(new Vector2(tUnit * tOffset.x + pad, tUnit * tOffset.y + pad)); // bottom left
// ==== Faces ====
// add the faces
FacesList.Add(FaceCount + 0);
FacesList.Add(FaceCount + 1);
FacesList.Add(FaceCount + 3);
FacesList.Add(FaceCount + 1);
FacesList.Add(FaceCount + 2);
FacesList.Add(FaceCount + 3);
if (colliderType == ColliderType.cube && Engine.GenerateColliders)
{
SolidColliderFaces.Add(SolidFaceCount + 0);
SolidColliderFaces.Add(SolidFaceCount + 1);
SolidColliderFaces.Add(SolidFaceCount + 3);
SolidColliderFaces.Add(SolidFaceCount + 1);
SolidColliderFaces.Add(SolidFaceCount + 2);
SolidColliderFaces.Add(SolidFaceCount + 3);
}
// Add to the face count
FaceCount += 4; // we're adding 4 because there are 4 vertices in each face.
if (colliderType == ColliderType.cube && Engine.GenerateColliders)
{
SolidFaceCount += 4;
}
// Check the amount of vertices so far and create a new mesh if necessary
if (Vertices.Count > 65530)
{
CreateNewMeshObject();
}
}