void DrawMesh(bool snapToGrid = false)
{
if (m_MeshCopy != null && m_LineCopy != null)
{
if (m_MeshCreatorController.m_Vertices.Count >= 3 && m_PointerController.isCentered)
{
// current position should be in the same plane as the first 3 vertices
m_PointerController.SetPointerPlane(
m_MeshCreatorController.GetVertexWithWorldCoord(0),
m_MeshCreatorController.GetVertexWithWorldCoord(1),
m_MeshCreatorController.GetVertexWithWorldCoord(2)
);
m_PointerController.isCentered = false;
}
if (!snapToGrid)
{
currentPosition = m_Pointer.transform.position;
}
else if (!m_PointerController.isCentered) // snapping to the grid and not one of the first 3 points
{
// TODO: needs to be some scale here so as not to round to whole numbers (divided by 2)
float scale = m_ScaleDivision;
currentPosition = m_PointerController.GetGridPointFromPlane(m_Pointer.transform.position, scale);
}
else if (m_PointerController.isCentered && m_MeshCreatorController.m_Vertices.Count == 2)
{
// TODO: needs to be some scale here so as not to round to whole numbers (divided by 2)
float scale = m_ScaleDivision;
m_PointerController.SetPointerPlane(
m_MeshCreatorController.GetVertexWithWorldCoord(0),
m_MeshCreatorController.GetVertexWithWorldCoord(1),
currentPosition
);
m_PointerController.isCentered = false;
currentPosition = m_PointerController.GetGridPointFromPlane(m_Pointer.transform.position, scale);
}
if (!m_PointerController.isCentered)
{
// make sure mesh is convex
// by ensuring that the pointer is within the ray created by the 2nd to last vertex
// and the last vertex and the ray created by the last vertex and the first vertex
int count = m_MeshCreatorController.m_Vertices.Count;
Vector3 vertexN = m_MeshCreatorController.GetVertexWithWorldCoord(count - 1);
Vector3 vertexNMinus1 = m_MeshCreatorController.GetVertexWithWorldCoord(count - 2);
Vector3 vertex1 = m_MeshCreatorController.GetVertexWithWorldCoord(0);
Vector3 A = vertexN - vertexNMinus1;
Vector3 B = vertex1 - vertexN;
m_PointerController.RestrictPointerToInsideRays(vertexN, A, B);
}
m_LineCopy.transform.position = (initialPosition + currentPosition) / 2;
m_LineCopy.transform.localScale = new Vector3(
m_LineCopy.transform.localScale.x,
(initialPosition - currentPosition).magnitude / 2,
m_LineCopy.transform.localScale.z
);
if (snapToGrid && m_PointerController.isCentered)
{
float sd = m_ScaleDivision * 2;
// round to nearest (sub)unit
Vector3 scaleL = m_LineCopy.transform.localScale;
scaleL.y *= sd;
if (scaleL.y < 1)
{
scaleL.y = 1;
}
else
{
scaleL.y = Mathf.Round(scaleL.y);
}
scaleL.y /= sd;
float deltaY = scaleL.y - m_LineCopy.transform.localScale.y;
m_LineCopy.transform.localScale = scaleL;
// move position to adjust for change of size
Vector3 posL = m_LineCopy.transform.position;
posL += m_LineCopy.transform.up * deltaY;
m_LineCopy.transform.position = posL;
currentPosition = m_LineCopy.transform.position + m_LineCopy.transform.up * m_LineCopy.transform.localScale.y;
}
if (currentPosition - initialPosition == Vector3.zero)
{
return;
}
m_LineCopy.transform.localRotation = Quaternion.LookRotation((currentPosition - initialPosition).normalized);
m_LineCopy.transform.Rotate(90, 0, 0);
}
}