void CreateNewLayerWithTexture(Texture2D texture)
{
Layer newLayer = ScriptableObject.CreateInstance <Layer>();
newLayer.AssignedLayer = new TerrainLayer();
newLayer.AssignedLayer.diffuseTexture = texture;
m_PaletteLayers.Add(newLayer);
m_LayerList.index = m_PaletteLayers.Count - 1;
string path = "Assets";
foreach (UnityEngine.Object obj in Selection.GetFiltered(typeof(UnityEngine.Object), SelectionMode.Assets))
{
path = AssetDatabase.GetAssetPath(obj);
if (!string.IsNullOrEmpty(path) && File.Exists(path))
{
path = Path.GetDirectoryName(path);
break;
}
}
newLayer.AssignedLayer.name = m_LayerName;
TerrainToolboxLayer.AddLayerToTerrain(m_SelectedTerrain.terrainData, newLayer.AssignedLayer);
AssetDatabase.CreateAsset(newLayer.AssignedLayer, AssetDatabase.GenerateUniqueAssetPath($"{path}/{m_LayerName}.terrainlayer"));
}
void DrawLayerElement(Rect rect, int index, bool selected, bool focused)
{
rect.y = rect.y + kElementPadding;
var rectButton = new Rect((rect.x + kElementPadding), rect.y, kElementToggleWidth, kElementToggleWidth);
var rectImage = new Rect((rectButton.x + kElementToggleWidth), rect.y, kElementImageWidth, kElementImageHeight);
var rectObject = new Rect((rectImage.x + kElementImageWidth + 10), rect.y, kElementObjectFieldWidth, kElementObjectFieldHeight);
if (m_PaletteLayers.Count > 0 && m_PaletteLayers.ElementAtOrDefault(index) != null)
{
m_PaletteLayers[index].IsSelected = EditorGUI.Toggle(rectButton, m_PaletteLayers[index].IsSelected);
EditorGUILayout.BeginHorizontal();
List <TerrainLayer> existLayers = m_PaletteLayers.Select(l => l.AssignedLayer).ToList();
TerrainLayer oldLayer = m_PaletteLayers[index].AssignedLayer;
Texture2D icon = null;
if (m_PaletteLayers[index].AssignedLayer != null)
{
icon = AssetPreview.GetAssetPreview(m_PaletteLayers[index].AssignedLayer.diffuseTexture);
}
GUI.Box(rectImage, icon);
EditorGUI.BeginChangeCheck();
m_PaletteLayers[index].AssignedLayer = EditorGUI.ObjectField(rectObject, m_PaletteLayers[index].AssignedLayer, typeof(TerrainLayer), false) as TerrainLayer;
EditorGUILayout.EndHorizontal();
if (EditorGUI.EndChangeCheck())
{
if (m_PaletteLayers[index].AssignedLayer == null)
{
m_PaletteLayers.RemoveAt(index);
TerrainToolboxLayer.RemoveLayerFromTerrain(m_SelectedTerrain.terrainData, index);
m_SelectedTerrainLayer = null;
}
else if (existLayers.Contains(m_PaletteLayers[index].AssignedLayer) && m_PaletteLayers[index].AssignedLayer != oldLayer)
{
EditorUtility.DisplayDialog("Error", "Layer exists. Please select a different layer.", "OK");
m_PaletteLayers[index].AssignedLayer = oldLayer;
}
else
{
if (m_SelectedTerrain.terrainData.terrainLayers.Length < m_PaletteLayers.Count)
{
TerrainToolboxLayer.AddLayerToTerrain(m_SelectedTerrain.terrainData, m_PaletteLayers[index].AssignedLayer);
}
else
{
int layersLength = m_SelectedTerrain.terrainData.terrainLayers.Length;
TerrainLayer[] layers = m_SelectedTerrain.terrainData.terrainLayers;
layers[index] = m_PaletteLayers[index].AssignedLayer;
m_SelectedTerrainLayer = m_PaletteLayers[index].AssignedLayer;
m_SelectedTerrain.terrainData.terrainLayers = layers;
}
}
}
}
}
void AddLayerElement(TerrainLayer layer)
{
if (LayerExists(layer))
{
return;
}
Layer newLayer = CreateInstance <Layer>();
newLayer.AssignedLayer = layer;
newLayer.IsSelected = m_ToggleAllElements;
m_PaletteLayers.Add(newLayer);
TerrainToolboxLayer.AddLayerToTerrain(m_SelectedTerrain.terrainData, newLayer.AssignedLayer);
m_SelectedTerrainLayer = newLayer.AssignedLayer;
m_LayerList.index = m_PaletteLayers.Count - 1;
#if UNITY_2019_2_OR_NEWER
m_LayerRepaintFlag = true;
#endif
}
