public override void OnSceneGUI()
{
Bounds editBounds = new Bounds();
bool updateVegetation = false;
_terrain = (Terrain)target;
int buttonIndex = GetActiveButton();
Event current = Event.current;
int controlId = GUIUtility.GetControlID(EditorInstance.GetHashCode(), FocusType.Passive);
var currentEventType = current.GetTypeForControl(controlId);
if (buttonIndex <= 3)
{
switch (currentEventType)
{
case EventType.MouseDown:
case EventType.MouseUp:
case EventType.MouseDrag:
if (current.button == 0)
{
var size = EditorPrefs.GetInt("TerrainBrushSize");
Ray ray = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
RaycastHit raycastHit;
if (_terrain.GetComponent <Collider>().Raycast(ray, out raycastHit, float.PositiveInfinity))
{
var pos = raycastHit.point;
float sizeScale = 5f;
editBounds = new Bounds(pos, new Vector3(size * sizeScale, size, size * sizeScale));
updateVegetation = true;
}
}
break;
}
if (currentEventType == EventType.MouseDown)
{
_combindedBounds = new Bounds(editBounds.center, editBounds.size);
}
else if (currentEventType == EventType.MouseDrag || currentEventType == EventType.MouseUp)
{
_combindedBounds.Encapsulate(editBounds);
}
}
base.OnSceneGUI();
if (updateVegetation)
{
if (buttonIndex < 3)
{
if (currentEventType == EventType.MouseUp)
{
_combindedBounds.Expand(4f);
VegetationStudioManager.RefreshTerrainHeightmap(_combindedBounds);
}
}
else
{
editBounds.Expand(1f);
VegetationStudioManager.ClearCache(editBounds);
}
}
}
