private void OnBeforeDrag(BaseHandle handle)
{
m_isDragging = m_selectedHandles != null;
if (m_isDragging)
{
handle.EnableUndo = false;
m_oldHeightmap = GetHeightmap();
m_oldState = m_state.Save();
}
}
public void CutHoles()
{
GameObject[] objects = m_terrainHandlesSelection.Selection.gameObjects;
if (objects != null && objects.Length > 0)
{
float[,] heightMap = GetHeightmap();
TerrainToolState.Record state = m_state.Save();
objects = CreateAndApplyCutoutTexture(objects);
RecordState(heightMap, state);
}
}
private void RecordState(float[,] oldHeightmap, TerrainToolState.Record oldState)
{
Terrain terrain = Terrain;
float[,] newHeightmap = GetHeightmap();
TerrainToolState.Record newState = m_state.Save();
m_oldHeightmap = null;
m_oldState = null;
m_editor.Undo.CreateRecord(redoRecord =>
{
if (terrain.terrainData != null)
{
terrain.SetHeights(0, 0, newHeightmap);
}
if (m_state != null)
{
m_state.Load(newState);
}
UpdateHandlePositions();
InitAdditiveAndInterpolatedHeights();
return(true);
},
undoRecord =>
{
if (terrain.terrainData != null)
{
terrain.SetHeights(0, 0, oldHeightmap);
}
if (m_state != null)
{
m_state.Load(oldState);
}
UpdateHandlePositions();
InitAdditiveAndInterpolatedHeights();
return(true);
});
}
public bool Refresh(Action redo = null, Action undo = null)
{
TerrainData data = TerrainData;
if (m_state == null)
{
return(false);
}
if (m_state.HeightMap.Length == data.heightmapResolution * data.heightmapResolution &&
m_state.Grid.Length == Mathf.FloorToInt(m_state.ZSize / ZSpacing + 1) * Mathf.FloorToInt(m_state.XSize / XSpacing + 1) &&
m_state.ZSize == data.size.z && m_state.XSize == data.size.x)
{
return(false);
}
m_terrainHandlesSelection.Selection.activeGameObject = null;
TerrainToolState.Record oldState = m_state.Save();
m_state.ZSize = data.size.z;
m_state.XSize = data.size.x;
m_xCount = m_state.XSize / XSpacing + 1;
m_zCount = m_state.ZSize / ZSpacing + 1;
m_state.Grid = new float[Mathf.FloorToInt(m_zCount) * Mathf.FloorToInt(m_xCount)];
m_state.HeightMap = new float[data.heightmapResolution * data.heightmapResolution];
m_state.CutoutTexture = m_cutoutMaskRenderer.CreateMask(data, null);
m_state.ZSpacing = m_state.ZSize / (m_zCount - 1);
m_state.XSpacing = m_state.XSize / (m_xCount - 1);
InitAdditiveAndInterpolatedHeights();
if (IsEnabled)
{
CreateHandles();
}
TerrainToolState.Record newState = m_state.Save();
m_editor.Undo.CreateRecord(redoRecord =>
{
if (redo != null)
{
redo();
}
if (m_state != null)
{
m_state.Load(newState);
}
m_terrainHandlesSelection.Selection.activeGameObject = null;
XSpacing = m_state.XSpacing;
ZSpacing = m_state.ZSpacing;
m_xCount = m_state.XSize / XSpacing + 1;
m_zCount = m_state.ZSize / ZSpacing + 1;
InitAdditiveAndInterpolatedHeights();
if (IsEnabled)
{
CreateHandles();
}
return(true);
},
undoRecord =>
{
if (undo != null)
{
undo();
}
if (m_state != null)
{
m_state.Load(oldState);
}
m_terrainHandlesSelection.Selection.activeGameObject = null;
XSpacing = m_state.XSpacing;
ZSpacing = m_state.ZSpacing;
m_xCount = m_state.XSize / XSpacing + 1;
m_zCount = m_state.ZSize / ZSpacing + 1;
InitAdditiveAndInterpolatedHeights();
if (IsEnabled)
{
CreateHandles();
}
return(true);
});
return(true);
}
