private void OnDrawGizmos()
{
#if UNITY_EDITOR
if (!isEnabled)
{
return;
}
int itemCount = _items.Count;
for (int i = 0; i < itemCount; i++)
{
GizmoLabelItem item = _items[i];
switch (item.type)
{
case GizmoLabelItem.Types.Label:
Handles.color = Color.white;
Handles.Label(item.labelPos, item.text);
break;
case GizmoLabelItem.Types.LabelLineTo:
Handles.color = item.colour;
Handles.Label(item.labelPos, item.text);
Handles.DrawLine(item.pointA, item.pointB);
break;
case GizmoLabelItem.Types.LabelDirection:
Handles.color = item.colour;
float handleSize = HandleUtility.GetHandleSize(item.labelPos);
Vector3 position = item.labelPos + item.pointA.normalized * handleSize;
Handles.Label(position, item.text);
UnityVersionWrapper.HandlesArrowCap(0, item.labelPos, Quaternion.LookRotation(item.pointA), handleSize);
break;
}
}
#endif
}
protected void AddItem(GizmoLabelItem newItem)
{
#if UNITY_EDITOR
if (!isEnabled)
{
return;
}
_items.Add(newItem);
SceneView.RepaintAll();
#endif
}
/// <summary>
/// Add a label to your scene view
/// </summary>
/// <param name="text">Text content</param>
/// <param name="position">World position of text</param>
/// <param name="frames">Optional time parameter, default is for a frame</param>
public static void Label(string text, Vector3 position, int frames = 1)
{
#if UNITY_EDITOR
GizmoLabelItem input = new GizmoLabelItem();
input.type = GizmoLabelItem.Types.Label;
input.text = text;
input.labelPos = position;
input.frames = frames;
Instance.AddItem(input);
#endif
}
/// <summary>
/// Add a label to your scene view with an arrow originating from the position in a given direction
/// </summary>
/// <param name="text">Text content</param>
/// <param name="position">World position of text and arrow</param>
/// <param name="frames">Time parameter, default is for a frame</param>
/// <param name="to">Direction of the arrow</param>
/// <param name="lineColour">Colour of the arrow</param>
public static void LabelDirection(string text, Vector3 position, Vector3 to, Color lineColour, int frames)
{
#if UNITY_EDITOR
GizmoLabelItem input = new GizmoLabelItem();
input.type = GizmoLabelItem.Types.LabelDirection;
input.text = text;
input.labelPos = position;
input.frames = frames;
input.pointA = to;
input.colour = lineColour;
Instance.AddItem(input);
#endif
}
/// <summary>
/// Add a label to your scene view with a line originating from the position to a given point
/// </summary>
/// <param name="text">Text content</param>
/// <param name="from">Draw a line from this point</param>
/// <param name="to">Draw a line to this point and show label here</param>
/// <param name="lineColour">Line Colour</param>
/// <param name="frames">Optional time parameter, default is for a frame</param>
public static void LabelLineTo(string text, Vector3 from, Vector3 to, Color lineColour, int frames = 1)
{
#if UNITY_EDITOR
GizmoLabelItem input = new GizmoLabelItem();
input.type = GizmoLabelItem.Types.LabelLineTo;
input.text = text;
input.labelPos = to;
input.frames = frames;
input.pointA = from;
input.pointB = to;
input.colour = lineColour;
Instance.AddItem(input);
#endif
}
private void Update()
{
#if UNITY_EDITOR
if (!isEnabled)
{
return;
}
int itemCount = _items.Count;
int remoeCount = 0;
for (int i = 0; i < itemCount; i++)
{
GizmoLabelItem item = _items[i];
item.frames--;
if (item.frames == 0)
{
remoeCount++;
_items.Remove(item);
itemCount--;
i--;
}
}
#endif
}
