// BRUSH METHODS //
private BrushPrefabSettings ChooseRandomPrefab()
{
BrushPrefabSettings currentPick = SavedBrushes.brushes[BrushList.index].prefabs[0];
float currentWeight = Random.Range(0f, 1f) * currentPick.weight;
for (int i = 0; i < SavedBrushes.brushes[BrushList.index].prefabs.Count; i++)
{
float weight = Random.Range(0f, 1f) * SavedBrushes.brushes[BrushList.index].prefabs[i].weight;
if (weight > currentWeight)
{
currentWeight = weight;
currentPick = SavedBrushes.brushes[BrushList.index].prefabs[i];
}
}
return(currentPick);
}
private void PaintObjects(Event current)
{
// Checks
if (current.type == EventType.Repaint)
{
return;
}
if (SavedBrushes.brushes[BrushList.index].prefabs.Count == 0)
{
return;
}
if (!mouseIsDown && current.type == EventType.MouseDown && current.modifiers == EventModifiers.None && current.button == 0)
{
lastCollider = brushHit.collider;
mouseIsDown = true;
}
if (mouseIsDown && current.type == EventType.MouseUp)
{
lastCollider = null;
mouseIsDown = false;
}
if (!mouseIsDown || brushHit.collider == null)
{
return;
}
// Exit if delay is not up yet.
if (placeTimeStamp >= EditorApplication.timeSinceStartup)
{
return;
}
// Calculate direction from center to random angle.
Vector3 dir = (Quaternion.AngleAxis(Random.Range(0f, 360f), brushHit.normal) * Vector3.Cross(brushHit.normal, Vector3.right)).normalized;
// Calculate random range from center to radius.
float range = Random.Range(0, SavedBrushes.brushes[BrushList.index].brushRadius);
// Construct selected location from direction + range.
Vector3 selectPos = brushHit.point + (dir * range);
// Align this point to local surface or abort if nothing was hit.
Ray upRay = new Ray(selectPos, Vector3.up);
Ray downRay = new Ray(selectPos, Vector3.down);
Ray safeRay = new Ray(selectPos + (Vector3.up * 0.01f), Vector3.down);
Ray normalRay = new Ray(selectPos + (brushHit.normal * 0.01f), -brushHit.normal);
RaycastHit hitToSurface;
bool oldQuery = Physics.queriesHitBackfaces;
Physics.queriesHitBackfaces = true;
int layers = SavedBrushes.brushes[BrushList.index].layerMask;
if (!Physics.Raycast(upRay, out hitToSurface, Mathf.Infinity, layers, QueryTriggerInteraction.Ignore) &&
!Physics.Raycast(downRay, out hitToSurface, Mathf.Infinity, layers, QueryTriggerInteraction.Ignore) &&
!Physics.Raycast(safeRay, out hitToSurface, Mathf.Infinity, layers, QueryTriggerInteraction.Ignore) &&
!Physics.Raycast(normalRay, out hitToSurface, Mathf.Infinity, layers, QueryTriggerInteraction.Ignore))
{
return;
}
if (SavedBrushes.brushes[BrushList.index].colliderStrict && hitToSurface.collider != lastCollider)
{
return;
}
Physics.queriesHitBackfaces = oldQuery;
if (SavedBrushes.brushes[BrushList.index].cullEnabled)
{
float angle = Vector3.Angle(SavedBrushes.brushes[BrushList.index].cullRef, hitToSurface.normal);
if (!SavedBrushes.brushes[BrushList.index].cullInvert && angle > SavedBrushes.brushes[BrushList.index].cullAngle)
{
return;
}
if (SavedBrushes.brushes[BrushList.index].cullInvert && angle < SavedBrushes.brushes[BrushList.index].cullAngle)
{
return;
}
}
BrushPrefabSettings pick = ChooseRandomPrefab();
if (pick.paintObject == null)
{
Debug.LogWarning("[ObjectPainter] The Prefab is null !");
return;
}
// Generate new object.
float objScale = Random.Range(pick.objectRandomScale.x, pick.objectRandomScale.y);
float objRot = Random.Range(pick.objectRandomRotation.x, pick.objectRandomRotation.y);
GameObject newObj = PrefabUtility.InstantiatePrefab(pick.paintObject) as GameObject;
// Set parent
if (parent)
{
newObj.transform.parent = parent;
}
newObj.transform.position = hitToSurface.point;
switch (pick.alignMode)
{
default:
case BrushPrefabSettings.AlignMode.Up:
newObj.transform.up = hitToSurface.normal;
if (pick.alignToPath)
{
newObj.transform.forward = brushHit.point - lastHitPoint;
}
break;
case BrushPrefabSettings.AlignMode.Down:
newObj.transform.up = -hitToSurface.normal;
if (pick.alignToPath)
{
newObj.transform.forward = brushHit.point - lastHitPoint;
}
break;
case BrushPrefabSettings.AlignMode.Left:
newObj.transform.right = -hitToSurface.normal;
if (pick.alignToPath)
{
newObj.transform.forward = brushHit.point - lastHitPoint;
}
break;
case BrushPrefabSettings.AlignMode.Right:
newObj.transform.right = hitToSurface.normal;
if (pick.alignToPath)
{
newObj.transform.forward = brushHit.point - lastHitPoint;
}
break;
case BrushPrefabSettings.AlignMode.Forward:
newObj.transform.forward = hitToSurface.normal;
if (pick.alignToPath)
{
newObj.transform.up = brushHit.point - lastHitPoint;
}
break;
case BrushPrefabSettings.AlignMode.Backward:
newObj.transform.forward = -hitToSurface.normal;
if (pick.alignToPath)
{
newObj.transform.up = brushHit.point - lastHitPoint;
}
break;
case BrushPrefabSettings.AlignMode.None:
if (pick.alignToPath)
{
newObj.transform.forward = brushHit.point - lastHitPoint;
}
break;
}
newObj.transform.localScale = new Vector3(objScale, objScale, objScale);
newObj.transform.RotateAround(newObj.transform.position, hitToSurface.normal, objRot);
lastHitPoint = brushHit.point;
Undo.RegisterCreatedObjectUndo(newObj, "Object Painter");
float rate = SavedBrushes.brushes[BrushList.index].brushRate;
placeTimeStamp = EditorApplication.timeSinceStartup + ((60d / rate) / 60d);
}
