void OnGUI()
{
GUILayout.Space(4);
GUILayout.Label("Set up your mesh for Any UI.\nThe canvas is created automatically.", EditorStyles.boldLabel);
anyuimeshobject = EditorGUILayout.ObjectField("AnyUI Mesh to set up", anyuimeshobject, typeof(GameObject), true);
GUILayout.Space(4);
placeTestCheckerboard = EditorGUILayout.Toggle("Place test texture?", placeTestCheckerboard);
GUILayout.Space(8);
AnyUiMesh mesh = null;
if (anyuimeshobject != null)
{
var anyUiMeshGO = (GameObject)anyuimeshobject;
if (anyUiMeshGO.GetComponent <AnyUiMesh>() == null)
{
mesh = anyUiMeshGO.AddComponent <AnyUiMesh>();
}
mesh = anyUiMeshGO.GetComponent <AnyUiMesh>();
}
var rect = EditorGUILayout.BeginHorizontal("Button");
if (GUI.Button(rect, GUIContent.none))
{
if (mesh != null && mesh.CanvasToProject == null)
{
createAnyUiCanvasFor(mesh);
}
}
GUILayout.Label("Ok");
EditorGUILayout.EndHorizontal();
}
private void createAnyUiCanvasFor(AnyUiMesh mesh)
{
GameObject canvasGameObject = new GameObject();
if (placeTestCheckerboard)
{
CreateCheckerboardTexture(canvasGameObject);
}
canvasGameObject.transform.parent = mesh.transform.parent;
canvasGameObject.name = "AnyUiCanvasFor" + mesh.gameObject.name;
canvasGameObject.layer = 5; //ui layer
mesh.CanvasToProject = canvasGameObject.AddComponent <Canvas>();
mesh.CanvasToProject.renderMode = RenderMode.WorldSpace;
canvasGameObject.AddComponent <CanvasScaler>();
canvasGameObject.AddComponent <AnyUiCanvas>();
RectTransform canvasRectTransform = canvasGameObject.GetComponent <RectTransform>();
//try to determine the size and adapt created canvas size
var col = mesh.GetComponent <Collider>();
bool artificiallyCreatedCollider = false;
if (col == null)
{
artificiallyCreatedCollider = true;
col = mesh.gameObject.AddComponent <BoxCollider>();
}
float diagonalLength = Vector3.Distance(col.bounds.max, col.bounds.min);
canvasRectTransform.localScale = Vector3.one * (diagonalLength / (float)canvasEdgeLength);
canvasRectTransform.sizeDelta = new Vector2(canvasEdgeLength, canvasEdgeLength);
mesh.ProjectionResolution = AnyUiResolution._1k;
//place canvas next to object on the world y axis and let it look into negative z
canvasRectTransform.position = col.bounds.center + new Vector3(0, diagonalLength, 0);
canvasRectTransform.transform.forward = -Vector3.forward;
if (artificiallyCreatedCollider)
{
DestroyImmediate(col);
}
//add event system if needed
if (FindObjectOfType <EventSystem>() == null)
{
GameObject eventSystem = new GameObject();
eventSystem.name = "EventSystem";
eventSystem.AddComponent <EventSystem>();
eventSystem.AddComponent <StandaloneInputModule>();
Debug.Log("Setup AnyUi Canvas: created an EventSystem because there wasn't one in this scene yet");
}
}
