private void BatchPath(SFPolygon poly, int pathIndex, Matrix4x4 t, ref int j, bool flipped, Vector3 properties, Vector3[] verts, Vector4[] tangents, Vector2[] uvs, int[] tris)
{
int startIndex;
Vector2 a;
var path = poly.GetPath(pathIndex);
if (poly.looped)
{
startIndex = 0;
a = Transform(t, path[path.Length - 1]);
}
else
{
startIndex = 1;
a = Transform(t, path[0]);
}
for (int i = startIndex; i < path.Length; i++)
{
var b = Transform(t, path[i]);
var ab = (flipped ? new Vector4(b.x, b.y, a.x, a.y) : new Vector4(a.x, a.y, b.x, b.y));
verts[j * 4 + 0] = properties; tangents[j * 4 + 0] = ab; uvs[j * 4 + 0] = new Vector2(0.0f, 0.0f);
verts[j * 4 + 1] = properties; tangents[j * 4 + 1] = ab; uvs[j * 4 + 1] = new Vector2(1.0f, 0.0f);
verts[j * 4 + 2] = properties; tangents[j * 4 + 2] = ab; uvs[j * 4 + 2] = new Vector2(0.0f, 1.0f);
verts[j * 4 + 3] = properties; tangents[j * 4 + 3] = ab; uvs[j * 4 + 3] = new Vector2(1.0f, 1.0f);
tris[j * 6 + 0] = j * 4 + 0; tris[j * 6 + 1] = j * 4 + 1; tris[j * 6 + 2] = j * 4 + 2;
tris[j * 6 + 3] = j * 4 + 1; tris[j * 6 + 4] = j * 4 + 3; tris[j * 6 + 5] = j * 4 + 2;
j++;
a = b;
}
}
private void PathGUI(SFPolygon poly, int pathIndex)
{
bool dirty = false;
var path = poly.GetPath(pathIndex);
bool invalidVerts = true;
for (int i = 0; i < path.Length && invalidVerts; i++)
{
invalidVerts &= (path[i] == Vector2.zero);
}
if (invalidVerts)
{
Debug.Log("Invalid verts, attempting to set up from collider.");
// copy in collider verts if possible.
poly._CopyFromCollider();
path = poly.GetPath(pathIndex);
dirty = true;
}
var verts = new List <Vector2>(path);
// Copy of verts that is looped if the polygon is looped.
var looped = new List <Vector2>(verts);
if (poly.looped)
{
looped.Add(looped[0]);
}
Handles.matrix = poly.transform.localToWorldMatrix;
if (!inEditMode)
{
Handles.color = new Color(1f, 1f, 0f, 0.4f);
}
else
{
SetupUndo("edited SFPolygon");
var removePressed = ((Event.current.modifiers & (EventModifiers.Command | EventModifiers.Control)) != 0);
var addPressed = ((Event.current.modifiers & (EventModifiers.Shift)) != 0);
if (removePressed)
{
if (verts.Count > 2)
{
Handles.color = Color.red;
for (int i = 0; i < verts.Count; i++)
{
var handleSize = 0.05f * HandleUtility.GetHandleSize(verts [i]);
if (Handles.Button(verts [i], Quaternion.identity, handleSize, handleSize, Handles.DotHandleCap))
{
verts.RemoveAt(i);
dirty = true;
break;
}
}
}
}
else if (addPressed)
{
int insertIndex = 0;
Vector3 insertPosition = ClosestPoint(poly.transform, looped, out insertIndex);
var s = HandleUtility.GetHandleSize(insertPosition) * 0.05f;
// Draw the existing vertexes
Handles.color = Color.white;
for (int i = 0; i < verts.Count; i++)
{
Handles.DotHandleCap(0, verts [i], Quaternion.identity, s, EventType.Layout);
}
// Draw the insert handle
Handles.color = Color.green;
if (Handles.Button(insertPosition, Quaternion.identity, s, s, Handles.DotHandleCap))
{
verts.Insert(insertIndex, (Vector2)insertPosition);
dirty = true;
}
HandleUtility.Repaint();
}
else
{
// Move an existing vertex
Handles.color = Color.white;
for (int i = 0; i < verts.Count; i++)
{
Vector3 v = verts [i];
Vector2 delta = DotHandle(v) - (Vector2)v;
if (delta != Vector2.zero)
{
verts [i] = (Vector2)v + delta;
dirty = true;
}
}
}
Handles.color = Color.white;
}
Handles.DrawPolyLine(looped.Select(v => (Vector3)v).ToArray());
if (dirty)
{
// Unity 5.3 and later only
Undo.RecordObject(poly, "Move Shadow Geometry");
poly.SetPath(pathIndex, verts.ToArray());
}
}
