HairyPlotterTriangle RaycastTriangle()
{
// This transform from GUI space to scene camera ray
Ray r = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
// Iterate over each triangle in plotter
for (int i = 0; i < plotter.TriangleCount; ++i)
{
// Grab triangle
HairyPlotterTriangle triangle = plotter.GetTriangle(i);
// Intersect ray
if (HairyPlotter.RayIntersectsTriangle(
r,
triangle.GetVertex(0).Position,
triangle.GetVertex(1).Position,
triangle.GetVertex(2).Position
))
{
// Found!
plotter.CurrentAction = HairyPlotterActions.None;
// Destroy triangle
return(triangle);
}
}
return(null);
}
HairyPlotterTriangle RaycastTriangle()
{
// This transform from GUI space to scene camera ray
Ray r = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
Transform t = plotter.transform; // this for position gizmo vertices and triangles according parent game object world coordinates
// Iterate over each triangle in plotter
for (int i = 0; i < plotter.TriangleCount; ++i)
{
// Grab triangle
HairyPlotterTriangle triangle = plotter.GetTriangle(i);
// Intersect ray
if (HairyPlotter.RayIntersectsTriangle(
r,
t.TransformPoint(triangle.GetVertex(0).Position),
t.TransformPoint(triangle.GetVertex(1).Position),
t.TransformPoint(triangle.GetVertex(2).Position)
))
{
// Found!
plotter.CurrentAction = HairyPlotterActions.None;
return(triangle);
}
}
return(null);
}
public void DestroyTriangle(HairyPlotterTriangle triangle)
{
if (triangle != null)
{
// Mark dirty
Dirty = true;
// Clear hover state
if (triangleHover == triangle)
{
triangleHover = null;
}
// Remove selection
triangleSelection.Remove(triangle);
// Remove triangle from mesh
triangles.Remove(triangle);
// Remove triangle from it's three vertices
triangle.GetVertex(0).RemoveTriangle(triangle);
triangle.GetVertex(1).RemoveTriangle(triangle);
triangle.GetVertex(2).RemoveTriangle(triangle);
// Clear link between triangle and vertices
triangle.ClearVertices();
// Update
UpdateVertexIndexes();
}
}
void DrawTriangles()
{
if (plotter.HoveredTriangle != null)
{
HairyPlotterTriangle tri = plotter.HoveredTriangle;
highlightMaterial.SetPass(0);
GL.Begin(GL.TRIANGLES);
GL.Color(TriangleHoverColor);
GL.Vertex(tri.GetVertex(0).Position);
GL.Vertex(tri.GetVertex(1).Position);
GL.Vertex(tri.GetVertex(2).Position);
GL.End();
}
List <HairyPlotterTriangle> selectedTriangles = plotter.SelectedTriangles;
if (selectedTriangles.Count > 0)
{
GL.Begin(GL.TRIANGLES);
GL.Color(TriangleSelectedColor);
for (int i = 0; i < selectedTriangles.Count; ++i)
{
HairyPlotterTriangle tri = selectedTriangles[i];
GL.Vertex(tri.GetVertex(0).Position);
GL.Vertex(tri.GetVertex(1).Position);
GL.Vertex(tri.GetVertex(2).Position);
}
GL.End();
}
}
void DrawTriangles()
{
if (plotter.HoveredTriangle != null)
{
HairyPlotterTriangle tri = plotter.HoveredTriangle;
Transform t = plotter.transform; // this for position gizmo vertices and triangles according parent game object world coordinates
highlightMaterial.SetPass(0);
GL.Begin(GL.TRIANGLES);
GL.Color(TriangleHoverColor);
GL.Vertex(t.TransformPoint(tri.GetVertex(0).Position));
GL.Vertex(t.TransformPoint(tri.GetVertex(1).Position));
GL.Vertex(t.TransformPoint(tri.GetVertex(2).Position));
GL.End();
}
List <HairyPlotterTriangle> selectedTriangles = plotter.SelectedTriangles;
if (selectedTriangles.Count > 0)
{
GL.Begin(GL.TRIANGLES);
GL.Color(TriangleSelectedColor);
Transform t = plotter.transform; // this for position gizmo vertices and triangles according parent game object world coordinates
for (int i = 0; i < selectedTriangles.Count; ++i)
{
HairyPlotterTriangle tri = selectedTriangles[i];
GL.Vertex(t.TransformPoint(tri.GetVertex(0).Position));
GL.Vertex(t.TransformPoint(tri.GetVertex(1).Position));
GL.Vertex(t.TransformPoint(tri.GetVertex(2).Position));
}
GL.End();
}
}
public void RemoveSelection(HairyPlotterTriangle triangle)
{
if (triangle == null)
{
return;
}
triangleSelection.Remove(triangle);
}
public HairyPlotterTriangle CreateTriangle(HairyPlotterVertex v0, HairyPlotterVertex v1, HairyPlotterVertex v2)
{
// Create tri
HairyPlotterTriangle triangle = new HairyPlotterTriangle(this);
// Set vertices for triangle
triangle.SetVertices(v0, v1, v2);
// Add to triangle list
triangles.Add(triangle);
// Return
return(triangle);
}
public void AddSelection(HairyPlotterTriangle triangle)
{
if (triangle == null)
{
return;
}
if (triangleHover == triangle)
{
triangleHover = null;
}
triangleSelection.Add(triangle);
}
public bool ToggleSelected(HairyPlotterTriangle triangle)
{
if (triangle == null)
return false;
if (IsSelected(triangle))
{
RemoveSelection(triangle);
}
else
{
AddSelection(triangle);
}
return true;
}
void OnSceneGUI()
{
if (!plotter)
{
return;
}
plotter.InitEditing();
if (plotter.CurrentAction == HairyPlotterActions.None)
{
plotter.SetTriangleHover(HoverTriangle());
if (plotter.ToggleSelected(PickTriangle()))
{
Repaint();
}
if (plotter.HoveredTriangle != null)
{
SceneView.lastActiveSceneView.Repaint();
}
}
if (plotter.CurrentAction == HairyPlotterActions.TriangleSwitch)
{
HairyPlotterTriangle triangle = PickTriangle();
if (triangle != null)
{
List <HairyPlotterVertex> vertices = plotter.SelectedVertices;
if (vertices.Count == 2)
{
triangle.SwitchVertices(vertices[0], vertices[1]);
plotter.ClearVertexSelection();
}
else
{
Debug.LogWarning("Switch In Triangle requires exactly two selected vertices");
}
}
}
DrawTriangles();
}
public bool ToggleSelected(HairyPlotterTriangle triangle)
{
if (triangle == null)
{
return(false);
}
if (IsSelected(triangle))
{
RemoveSelection(triangle);
}
else
{
AddSelection(triangle);
}
return(true);
}
public void AddTriangle(HairyPlotterTriangle triangle)
{
triangles.Add(triangle);
}
public void ClearTriangles()
{
triangles.Clear();
triangleHover = null;
Dirty = true;
}
public void DestroyTriangle(HairyPlotterTriangle triangle)
{
if (triangle != null)
{
// Mark dirty
Dirty = true;
// Clear hover state
if (triangleHover == triangle)
triangleHover = null;
// Remove selection
triangleSelection.Remove(triangle);
// Remove triangle from mesh
triangles.Remove(triangle);
// Remove triangle from it's three vertices
triangle.GetVertex(0).RemoveTriangle(triangle);
triangle.GetVertex(1).RemoveTriangle(triangle);
triangle.GetVertex(2).RemoveTriangle(triangle);
// Clear link between triangle and vertices
triangle.ClearVertices();
// Update
UpdateVertexIndexes();
}
}
public HairyPlotterTriangle CreateTriangle(HairyPlotterVertex v0, HairyPlotterVertex v1, HairyPlotterVertex v2)
{
// Create tri
HairyPlotterTriangle triangle = new HairyPlotterTriangle(this);
// Set vertices for triangle
triangle.SetVertices(v0, v1, v2);
// Add to triangle list
triangles.Add(triangle);
// Return
return triangle;
}
public void SetTriangleHover(HairyPlotterTriangle triangle)
{
triangleHover = triangle;
}
public void RemoveSelection(HairyPlotterTriangle triangle)
{
if (triangle == null)
return;
triangleSelection.Remove(triangle);
}
public void AddTriangle(HairyPlotterTriangle triangle)
{
triangles.Add(triangle);
}
public bool IsSelected(HairyPlotterTriangle triangle)
{
return triangle != null && triangleSelection.Contains(triangle);
}
public void SetTriangleHover(HairyPlotterTriangle triangle)
{
triangleHover = triangle;
}
void OnSceneGUI()
{
if (!plotter)
{
return;
}
plotter.InitEditing();
if (plotter.CurrentAction == HairyPlotterActions.None)
{
// don't hover triangle when moving vertices
if (allowMoveVerts)
{
plotter.SetTriangleHover(null);
}
else
{
plotter.SetTriangleHover(HoverTriangle());
}
if (plotter.ToggleSelected(PickTriangle()) && !allowMoveVerts)
{
Repaint();
}
if (plotter.HoveredTriangle != null)
{
SceneView.lastActiveSceneView.Repaint();
}
// detect if dragging a single vertex or selected vertices and update position/s according mouse position
if (Event.current.button == 0)
{
KeyCode _keyCode = Event.current.keyCode;
EventType _type = Event.current.type;
if (_type == EventType.MouseDown)
{
// pick selected vertices?
if (_keyCode == KeyCode.LeftShift || _keyCode == KeyCode.RightShift)
{
// use plotter.SelectedVertices
}
// or pick single vertex
else
{
hoveredVertex = PickVertex();
}
// set flag for allow moving vertices
allowMoveVerts = true;
}
// on mouse up finish the edition
else if (_type == EventType.MouseUp)
{
allowMoveVerts = false;
hoveredVertex = null;
}
// while dragging mouse update vertex position
else if (_type == EventType.MouseDrag && allowMoveVerts)
{
Ray r = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
Transform t = plotter.transform; // this for position gizmo vertices and triangles according parent game object world coordinates
Vector2 p = t.InverseTransformPoint(r.origin); // use inverse trasnform because then we transform again for displaying
// moving selected vertices?
if (_keyCode == KeyCode.LeftShift || _keyCode == KeyCode.RightShift)
{
for (int i = 0, c = plotter.SelectedVertices.Count; i < c; ++i)
{
plotter.SelectedVertices[i].Position.x = p.x;
plotter.SelectedVertices[i].Position.y = p.y;
if (HairyPlotterEditor.KeepUVOnVertsMove)
{
plotter.SelectedVertices[i].Uv.x = 0.5f + p.x;
plotter.SelectedVertices[i].Uv.y = 0.5f + p.y;
}
}
}
// or single vertex?
else if (hoveredVertex != null)
{
hoveredVertex.Position.x = p.x;
hoveredVertex.Position.y = p.y;
if (HairyPlotterEditor.KeepUVOnVertsMove)
{
hoveredVertex.Uv.x = 0.5f + p.x;
hoveredVertex.Uv.y = 0.5f + p.y;
}
}
plotter.Dirty = true;
plotter.ResetSelectionPosition();
}
}
}
if (plotter.CurrentAction == HairyPlotterActions.TriangleSwitch)
{
HairyPlotterTriangle triangle = PickTriangle();
if (triangle != null)
{
List <HairyPlotterVertex> vertices = plotter.SelectedVertices;
if (vertices.Count == 2)
{
triangle.SwitchVertices(vertices[0], vertices[1]);
plotter.ClearVertexSelection();
}
else
{
Debug.LogWarning("Switch In Triangle requires exactly two selected vertices");
}
}
}
DrawTriangles();
}
public bool IsSelected(HairyPlotterTriangle triangle)
{
return(triangle != null && triangleSelection.Contains(triangle));
}
public void ClearTriangles()
{
triangles.Clear();
triangleHover = null;
Dirty = true;
}
public void RemoveTriangle(HairyPlotterTriangle triangle)
{
triangles.Remove(triangle);
}
public void AddSelection(HairyPlotterTriangle triangle)
{
if (triangle == null)
return;
if (triangleHover == triangle)
{
triangleHover = null;
}
triangleSelection.Add(triangle);
}
public void RemoveTriangle(HairyPlotterTriangle triangle)
{
triangles.Remove(triangle);
}
