private void FixElementScale(BlockModelElement element,
BlockShaderVertex[] verts,
float minX, float maxX, float minY, float maxY, float minZ, float maxZ,
ref float facesMinX,
ref float facesMaxX,
ref float facesMinY,
ref float facesMaxY,
ref float facesMinZ,
ref float facesMaxZ)
{
if (element.Rotation.Axis != Axis.Undefined && element.Rotation.Rescale)
{
var diffX = maxX - minX;
var diffY = maxY - minY;
var diffZ = maxZ - minZ;
for (var i = 0; i < verts.Length; i++)
{
var v = verts[i];
v.Position.X = (v.Position.X - minX) / diffX;
v.Position.Y = (v.Position.Y - minY) / diffY;
v.Position.Z = (v.Position.Z - minZ) / diffZ;
verts[i] = v;
if (v.Position.X < facesMinX)
{
facesMinX = v.Position.X;
}
else if (v.Position.X > facesMaxX)
{
facesMaxX = v.Position.X;
}
if (v.Position.Y < facesMinY)
{
facesMinY = v.Position.Y;
}
else if (v.Position.Y > facesMaxY)
{
facesMaxY = v.Position.Y;
}
if (v.Position.Z < facesMinZ)
{
facesMinZ = v.Position.Z;
}
else if (v.Position.Z > facesMaxZ)
{
facesMaxZ = v.Position.Z;
}
}
}
}
private Vector3 FixRotation(Vector3 v, BlockModelElement element, int xRot, int yRot)
{
if (element.Rotation.Axis != Axis.Undefined)
{
var r = element.Rotation;
var angle = (float)(r.Angle * (Math.PI / 180f));
var origin = r.Origin;
var c = MathF.Cos(angle);
var s = MathF.Sin(angle);
switch (r.Axis)
{
case Axis.Y:
{
var x = v.X - origin.X;
var z = v.Z - origin.Z;
v.X = origin.X + (x * c - z * s);
v.Z = origin.Z + (z * c + x * s);
}
break;
case Axis.X:
{
var x = v.Z - origin.Z;
var z = v.Y - origin.Y;
v.Z = origin.Z + (x * c - z * s);
v.Y = origin.Y + (z * c + x * s);
}
break;
case Axis.Z:
{
var x = v.X - origin.X;
var z = v.Y - origin.Y;
v.X = origin.X + (x * c - z * s);
v.Y = origin.Y + (z * c + x * s);
}
break;
}
}
if (xRot > 0)
{
var rotX = (float)(xRot * (Math.PI / 180f));
var c = MathF.Cos(rotX);
var s = MathF.Sin(rotX);
var z = v.Z - 8f;
var y = v.Y - 8f;
v.Z = 8f + (z * c - y * s);
v.Y = 8f + (y * c + z * s);
}
if (yRot > 0)
{
var rotX = (float)(yRot * (Math.PI / 180f));
var c = MathF.Cos(rotX);
var s = MathF.Sin(rotX);
var z = v.X - 8f;
var y = v.Z - 8f;
v.X = 8f + (z * c - y * s);
v.Z = 8f + (y * c + z * s);
}
return(v);
}
