private void DrawScreenGUI(EditableTileVolume lattice)
{
Handles.BeginGUI();
GUILayout.BeginArea(new Rect(5, 5, 120, 160));
GUILayout.BeginVertical();
if (GUILayout.Button(editToggle ? "edit mode" : "view mode"))
{
editToggle = !editToggle;
}
if (GUILayout.Button(viewMenuOpen ? "<<<" : "view menu >>>", GUILayout.Height(20)))
{
viewMenuOpen = !viewMenuOpen;
}
if (viewMenuOpen)
{
if (GUILayout.Button("reset grid"))
{
needsRepaint = true;
}
}
GUILayout.EndVertical();
GUILayout.EndArea();
Handles.EndGUI();
}
private void CalcHitList(Ray ray, EditableTileVolume volume)
{
hitList.Clear();
var volTrans = volume.transform;
ray.origin = volTrans.InverseTransformPoint(ray.origin);
var dir = volTrans.InverseTransformDirection(ray.direction).normalized;
ray.direction = dir;
rayStart = ray.origin;
rayEnd = ray.origin + ray.direction * 100f;
Vector3 cellSize = Vector3.one;
Vector3 halfSize = new Vector3(volume.DataXSize * cellSize.x * 0.5f, volume.DataYSize * cellSize.y * 0.5f, volume.DataZSize * cellSize.z * 0.5f);
GridRayIntersection intersect = new GridRayIntersection(halfSize, new Vector3Int(volume.DataXSize, volume.DataYSize, volume.DataZSize), cellSize, ray);
if (intersect.DidHit)
{
hitList.Add(intersect.CurrentTraverseCell);
for (int i = 0; i < 10; ++i)
{
hitList.Add(intersect.NextCell());
}
}
}
private void DrawHitList(List <Vector3Int> coords, EditableTileVolume volume)
{
Vector3 cellSize = Vector3.one;
Vector3 offset = new Vector3(volume.DataXSize * -0.5f * cellSize.x + 0.5f * cellSize.x,
volume.DataYSize * -0.5f + 0.5f * cellSize.y,
volume.DataZSize * -0.5f + 0.5f * cellSize.z);
Vector3 prev = Vector3.zero;
foreach (var c in coords)
{
var position = new Vector3(c.x + offset.x, c.y + offset.y, c.z + offset.z);
Handles.color = Color.red;
Handles.DrawWireCube(position, Vector3.one);
Handles.color = Color.magenta;
Handles.CubeHandleCap(0, position, Quaternion.identity, 0.5f, EventType.Used);
Handles.color = Color.white;
if (prev != Vector3.zero)
{
Handles.DrawLine(prev, position);
}
prev = position;
}
Handles.color = Color.yellow;
Handles.DrawDottedLine(rayStart, rayEnd, 0.2f);
}
private void Draw(EditableTileVolume volume)
{
Camera cam = SceneView.lastActiveSceneView.camera;
Transform trans = volume.transform;
using (var scope = new Handles.DrawingScope(trans.localToWorldMatrix))
{
var camPos = trans.InverseTransformPoint(cam.transform.position);
var camLook = trans.InverseTransformDirection(cam.transform.forward);
DrawBgGrid(volume, camPos, camLook, Vector3.one);
DrawHitList(hitList, volume);
}
needsRepaint = false;
}
private void DrawBgGrid(EditableTileVolume volume, Vector3 camPos, Vector3 camLook, Vector3 cellSize)
{
var halfSize = new Vector3(volume.DataXSize, volume.DataYSize, volume.DataZSize);
halfSize.x *= cellSize.x;
halfSize.y *= cellSize.y;
halfSize.z *= cellSize.z;
halfSize *= 0.5f;
var pos = (camLook.y < 0) ? Down * halfSize.y : Up * halfSize.y;
DrawGrid(pos, Forward, Right, volume.DataZSize, volume.DataXSize, cellSize.z, cellSize.x);
pos = (camLook.x > 0) ? Right * halfSize.x : Left * halfSize.x;
DrawGrid(pos, Up, Forward, volume.DataYSize, volume.DataZSize, cellSize.y, cellSize.z);
pos = (camLook.z > 0) ? Forward * halfSize.z : Backward * halfSize.z;
DrawGrid(pos, Up, Right, volume.DataYSize, volume.DataXSize, cellSize.y, cellSize.x);
}