void OnSceneGUI()
{
VoxelModel model = (VoxelModel)target;
if (!CanModelBeEdited(model))
{
return;
}
float voxelHalfSize = model.voxelSize / 2.0f;
Handles.DrawWireCube(new Vector3(model.width * (voxelHalfSize), model.height * (voxelHalfSize), model.depth * (voxelHalfSize)), new Vector3(model.width * (model.voxelSize), model.height * (model.voxelSize), model.depth * (model.voxelSize)));
if (wasFirstHit)
{
Handles.color = Color.red;
Handles.DrawWireCube(firstHitPosition * model.voxelSize + new Vector3(voxelHalfSize, voxelHalfSize, voxelHalfSize), new Vector3(model.voxelSize, model.voxelSize, model.voxelSize));
Handles.color = Color.white;
}
// TODO(Brajan): Refactor this to avoid double Raycast function call
Ray ray = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
RaycastHit hit;
if (Physics.Raycast(ray, out hit, 1000))
{
Vector3 rawPosition;
if (editMode == EditMode.Place)
{
rawPosition = hit.point + (hit.normal * voxelHalfSize);
}
else
{
rawPosition = hit.point - (hit.normal * voxelHalfSize);
}
int x = Mathf.FloorToInt(rawPosition.x / model.voxelSize);
int y = Mathf.FloorToInt(rawPosition.y / model.voxelSize);
int z = Mathf.FloorToInt(rawPosition.z / model.voxelSize);
Handles.color = Color.gray;
Handles.DrawWireCube(new Vector3(x, y, z) * model.voxelSize + new Vector3(voxelHalfSize, voxelHalfSize, voxelHalfSize), new Vector3(model.voxelSize, model.voxelSize, model.voxelSize));
Handles.color = Color.white;
}
if (Event.current.type == EventType.MouseDown && Event.current.button == 0 && Event.current.control)
{
if (Physics.Raycast(ray, out hit, 1000))
{
if (!wasFirstHit)
{
Vector3 rawPosition;
if (editMode == EditMode.Place)
{
rawPosition = hit.point + (hit.normal * voxelHalfSize);
}
else
{
rawPosition = hit.point - (hit.normal * voxelHalfSize);
}
int x = Mathf.FloorToInt(rawPosition.x / model.voxelSize);
int y = Mathf.FloorToInt(rawPosition.y / model.voxelSize);
int z = Mathf.FloorToInt(rawPosition.z / model.voxelSize);
firstHitPosition = new Vector3(x, y, z);
wasFirstHit = true;
}
else
{
Vector3 rawPosition = hit.point + (hit.normal * voxelHalfSize);
if (editMode == EditMode.Place)
{
rawPosition = hit.point + (hit.normal * voxelHalfSize);
}
else
{
rawPosition = hit.point - (hit.normal * voxelHalfSize);
}
int secondX = Mathf.FloorToInt(rawPosition.x / model.voxelSize);
int secondY = Mathf.FloorToInt(rawPosition.y / model.voxelSize);
int secondZ = Mathf.FloorToInt(rawPosition.z / model.voxelSize);
int startX = (int)firstHitPosition.x > secondX ? secondX : (int)firstHitPosition.x;
int startY = (int)firstHitPosition.y > secondY ? secondY : (int)firstHitPosition.y;
int startZ = (int)firstHitPosition.z > secondZ ? secondZ : (int)firstHitPosition.z;
int endX = (int)firstHitPosition.x > secondX ? (int)firstHitPosition.x : secondX;
int endY = (int)firstHitPosition.y > secondY ? (int)firstHitPosition.y : secondY;
int endZ = (int)firstHitPosition.z > secondZ ? (int)firstHitPosition.z : secondZ;
for (int x = startX; x <= endX; ++x)
{
for (int y = startY; y <= endY; ++y)
{
for (int z = startZ; z <= endZ; ++z)
{
if (editMode == EditMode.Place)
{
if (x >= 0 && y >= 0 && z >= 0 && x < model.width && y < model.height && z < model.depth && model.GetBlock(x, y, z) == 0)
{
model.SetBlock(colorIndex >= 0 ? colorIndex + 1 : 1, x, y, z);
}
}
else
{
if (x >= 0 && y >= 0 && z >= 0 && x < model.width && y < model.height && z < model.depth && model.GetBlock(x, y, z) > 0)
{
if (editMode == EditMode.Erase)
{
model.SetBlock(0, x, y, z);
}
else if (editMode == EditMode.Paint)
{
if (colorIndex >= 0)
{
model.SetBlock(colorIndex + 1, x, y, z);
}
}
}
}
}
}
}
wasFirstHit = false;
}
}
model.voxelModelRenderer.Regenerate();
Event.current.Use();
}
if (Event.current.type == EventType.MouseDown && Event.current.button == 0)
{
wasFirstHit = false;
if (Physics.Raycast(ray, out hit, 1000))
{
if (hit.transform.GetComponent <VoxelModel>() == model)
{
if (editMode == EditMode.Place)
{
Vector3 rawPosition = hit.point + (hit.normal * voxelHalfSize);
int x = Mathf.FloorToInt(rawPosition.x / model.voxelSize);
int y = Mathf.FloorToInt(rawPosition.y / model.voxelSize);
int z = Mathf.FloorToInt(rawPosition.z / model.voxelSize);
if (x >= 0 && y >= 0 && z >= 0 && x < model.width && y < model.height && z < model.depth && model.GetBlock(x, y, z) == 0)
{
model.SetBlock(colorIndex >= 0 ? colorIndex + 1 : 1, x, y, z);
}
}
else
{
Vector3 rawPosition = hit.point - (hit.normal * voxelHalfSize);
int x = Mathf.FloorToInt(rawPosition.x / model.voxelSize);
int y = Mathf.FloorToInt(rawPosition.y / model.voxelSize);
int z = Mathf.FloorToInt(rawPosition.z / model.voxelSize);
if (x >= 0 && y >= 0 && z >= 0 && x < model.width && y < model.height && z < model.depth && model.GetBlock(x, y, z) > 0)
{
if (editMode == EditMode.Erase)
{
model.SetBlock(0, x, y, z);
}
else if (editMode == EditMode.Paint)
{
if (colorIndex >= 0)
{
model.SetBlock(colorIndex + 1, x, y, z);
}
}
}
}
model.voxelModelRenderer.Regenerate();
Event.current.Use();
}
}
}
else if (Event.current.type == EventType.layout)
{
HandleUtility.AddDefaultControl(GUIUtility.GetControlID(GetHashCode(), FocusType.Passive));
}
SceneView.RepaintAll();
}
public override void OnInspectorGUI()
{
VoxelModel model = (VoxelModel)target;
model.voxelModelRenderer = (VoxelModelRenderer)EditorGUILayout.ObjectField("Voxel Model Renderer", model.voxelModelRenderer, typeof(VoxelModelRenderer), true);
if (model.voxelModelRenderer == null)
{
GUILayout.Label("Please set VoxelModelRenderer reference to continue");
return;
}
GUILayout.Label("Size");
model.width = EditorGUILayout.IntField("Width", model.width);
model.height = EditorGUILayout.IntField("Height", model.height);
model.depth = EditorGUILayout.IntField("Depth", model.depth);
model.voxelSize = EditorGUILayout.FloatField("Voxel Size", model.voxelSize);
if (GUILayout.Button("Apply new dimensions (WARNING it will destroy current progress)"))
{
model.blocks = new int[model.width * model.height * model.depth];
model.voxelModelRenderer.Regenerate();
}
if (GUILayout.Button("Regenerate mesh"))
{
model.voxelModelRenderer.Regenerate();
}
EditorGUILayout.Space();
model.palette = (VoxelColorPalette)EditorGUILayout.ObjectField("Color palette", model.palette, typeof(VoxelColorPalette), false);
if (model.palette == null)
{
GUILayout.Label("We need palette to continue our work!");
return;
}
EditorGUILayout.Space();
if (model.blocks == null)
{
GUILayout.Label("Blocks are not initialized, please apply new dimensions");
return;
}
if (GUILayout.Button("Randomize"))
{
Random.InitState(System.DateTime.Now.Millisecond);
for (int x = 0; x < model.width; ++x)
{
for (int y = 0; y < model.height; ++y)
{
for (int z = 0; z < model.depth; ++z)
{
model.SetBlock(Random.Range(0, model.palette.colors.Count + 1), x, y, z);
}
}
}
model.voxelModelRenderer.Regenerate();
}
EditorGUILayout.Space();
GUILayout.Label("Tools (Current mode: " + editMode.ToString() + ")", EditorStyles.boldLabel);
EditorGUILayout.BeginHorizontal();
if (GUILayout.Button("Place mode", GUILayout.Width(96), GUILayout.Height(32)))
{
editMode = EditMode.Place;
//colorIndex = -1;
}
if (GUILayout.Button("Erasing mode", GUILayout.Width(96), GUILayout.Height(32)))
{
editMode = EditMode.Erase;
colorIndex = -1;
}
EditorGUILayout.EndHorizontal();
if (GUILayout.Button("Reset position(must be at 0, 0, 0)"))
{
model.transform.position = Vector3.zero;
}
if (GUILayout.Button("Fill"))
{
for (int x = 0; x < model.width; ++x)
{
for (int y = 0; y < model.height; ++y)
{
for (int z = 0; z < model.depth; ++z)
{
model.SetBlock(colorIndex + 1, x, y, z);
}
}
}
model.voxelModelRenderer.Regenerate();
}
if (GUILayout.Button("Generate sphere"))
{
float radius = Mathf.Min(model.width, model.height, model.depth) / 2.0f;
for (int x = 0; x < model.width; ++x)
{
for (int y = 0; y < model.height; ++y)
{
for (int z = 0; z < model.depth; ++z)
{
if (Vector3.Distance(new Vector3(model.width / 2.0f, model.height / 2.0f, model.depth / 2.0f), new Vector3(x, y, z)) <= radius)
{
model.SetBlock(colorIndex + 1, x, y, z);
}
}
}
}
model.voxelModelRenderer.Regenerate();
}
if (GUILayout.Button("Generate base"))
{
float radius = Mathf.Min(model.width, model.height, model.depth) / 2.0f;
for (int x = 0; x < model.width; ++x)
{
for (int z = 0; z < model.depth; ++z)
{
model.SetBlock(colorIndex + 1, x, 0, z);
}
}
model.voxelModelRenderer.Regenerate();
}
EditorGUILayout.Space();
GUILayout.Label("Palette", EditorStyles.boldLabel);
for (int i = 0; i < model.palette.colors.Count; ++i)
{
EditorGUILayout.BeginVertical(GUILayout.Height(48));
EditorGUILayout.BeginHorizontal(GUILayout.Width(Screen.width / 2.0f));
if (GUILayout.Button("Select", GUILayout.Height(32)))
{
colorIndex = i;
editMode = EditMode.Paint;
}
Rect buttonRect = GUILayoutUtility.GetLastRect();
if (colorIndex == i)
{
EditorGUI.DrawRect(new Rect(buttonRect.x + buttonRect.width + 4, buttonRect.y - 4, 40, 40), Color.red);
}
EditorGUI.DrawRect(new Rect(buttonRect.x + buttonRect.width + 8, buttonRect.y, 32, 32), model.palette.colors[i]);
EditorGUILayout.EndHorizontal();
EditorGUILayout.EndVertical();
}
EditorGUILayout.Space();
if (GUILayout.Button("Save as mesh asset"))
{
Mesh meshToSave = (Mesh)Instantiate(model.mesh);
string path = EditorUtility.SaveFilePanelInProject("Saving voxel mesh", "VM_Unknown", "asset", "Choose path where you wanna save model");
Debug.Log(path);
AssetDatabase.CreateAsset(meshToSave, path);
AssetDatabase.SaveAssets();
AssetDatabase.Refresh();
// create and save prefab with pivot at the center
GameObject modelParent = new GameObject(path.Substring(path.LastIndexOf('/')));
GameObject modelPrefab = new GameObject("GFX");
modelPrefab.AddComponent <MeshRenderer>().sharedMaterial = model.GetComponent <MeshRenderer>().sharedMaterial;
modelPrefab.GetComponent <MeshRenderer>().shadowCastingMode = UnityEngine.Rendering.ShadowCastingMode.TwoSided;
modelPrefab.AddComponent <MeshFilter>().mesh = meshToSave;
modelPrefab.AddComponent <MeshCollider>().sharedMesh = meshToSave;
modelPrefab.transform.parent = modelParent.transform;
modelPrefab.transform.localPosition = new Vector3(model.width * (model.voxelSize / 2.0f), model.height * (model.voxelSize / 2.0f), model.depth * (model.voxelSize / 2.0f)) * -1;
EditorUtility.SetDirty(modelParent);
PrefabUtility.CreatePrefab(path.Substring(0, path.LastIndexOf('.')) + ".prefab", modelParent);
DestroyImmediate(modelParent);
DestroyImmediate(modelPrefab);
}
}