void OnEnable()
{
tileMap = (TileMap)target;
tileMap_tileSet = tileMap.tileSet;
RegisterTilesetEvents(tileMap_tileSet);
TileToolbar.instance.tileSetBrushToolbar.TriggerButton(0);
TileToolbar.instance.tileSetBrushPaintToolbar.TriggerButton(0);
//fix missing material on prefabs tilemaps (when pressing play for example)
if (!string.IsNullOrEmpty(AssetDatabase.GetAssetPath(tileMap.gameObject)))
{
tileMap.Refresh(true, false, false, false);
}
if (tileMap.parent_tileMapGroup)
{
tileMap.parent_tileMapGroup.selected_tileMap = tileMap;
}
}
private void DisplayCollider()
{
Event e = Event.current;
if (tileSet.selected_tileSetBrushId != TileSetConst.TileSetBrushId_Default)
{
EditorGUILayout.LabelField("tileSetBrush不能被编辑", EditorStyles.boldLabel);
return;
}
bool is_multi_selection = tileSet.tileSelection != null;
bool is_save_changes = false;
Tile selected_tile = is_multi_selection
? tileSet.tile_list[TileSetUtil.GetTileIdFromTileData(tileSet.tileSelection.selection_tileData_list[0])]
: tileSet.selected_tile;
if (e.type == EventType.MouseDown)
{
is_dragging = true;
if (selected_tile.tileColliderData.vertices != null)
{
saved_vertexs = new Vector2[selected_tile.tileColliderData.vertices.Length];
selected_tile.tileColliderData.vertices.CopyTo(saved_vertexs, 0);
}
}
else if (e.type == EventType.MouseUp)
{
is_dragging = false;
}
//background_color
tileSet.background_color = EditorGUILayout.ColorField(tileSet.background_color);
if (pre_background_color != tileSet.background_color || GUIStyleConst.Scroll_Style.normal.background == null)
{
pre_background_color = tileSet.background_color;
if (GUIStyleConst.Scroll_Style.normal.background == null)
{
GUIStyleConst.Scroll_Style.normal.background = new Texture2D(1, 1)
{
hideFlags = HideFlags.DontSave
}
}
;
GUIStyleConst.Scroll_Style.normal.background.SetPixel(0, 0, tileSet.background_color);
GUIStyleConst.Scroll_Style.normal.background.Apply();
}
float aspect_ratio = tileSet.tile_pixel_size.x / tileSet.tile_pixel_size.y; //比例
float padding = 2; // pixel size of the border around the tile
//画tile图
//包围tile_rect的rect
Rect tile_parent_rect = GUILayoutUtility.GetRect(1, 1, GUILayout.ExpandWidth(true), GUILayout.ExpandHeight(true));
using (new GUIBeginGroupScope(tile_parent_rect, GUIStyleConst.Scroll_Style))
{
if (e.type == EventType.Repaint)
{
float tile_pixel_size = tile_parent_rect.width / (tileSet.tile_pixel_size.x + 2 * padding);//2*padding是因为padding有左边和右边
mouse_pos = e.mousePosition;
tile_rect = new Rect(padding * tile_pixel_size, padding * tile_pixel_size,
tile_parent_rect.width - 2 * padding * tile_pixel_size,
(tile_parent_rect.width / aspect_ratio) - 2 * padding * tile_pixel_size);
tile_rect.height = Mathf.Min(tile_rect.height, tile_parent_rect.height - 2 * padding * tile_pixel_size);
tile_rect.width = (tile_rect.height * aspect_ratio);
}
using (new GUIColorScope(new Color(1f, 1f, 1f, 0.1f)))
{
GUI.DrawTexture(tile_rect, EditorGUIUtility.whiteTexture);
}
if (is_multi_selection)
{
foreach (uint tileData in tileSet.tileSelection.selection_tileData_list)
{
int tileId = TileSetUtil.GetTileIdFromTileData(tileData);
Tile tile = tileSet.GetTile(tileId);
if (tile != null)
{
GUI.color = new Color(1f, 1f, 1f, 1f / tileSet.tileSelection.selection_tileData_list.Count);
GUI.DrawTextureWithTexCoords(tile_rect, tileSet.atlas_texture, tile.uv);
}
}
GUI.color = Color.white;
}
else
{
GUI.DrawTextureWithTexCoords(tile_rect, tileSet.atlas_texture, selected_tile.uv);
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Color saved_handle_color = Handles.color;
if (selected_tile.tileColliderData.type != TileColliderType.None)
{
Vector2[] collider_vertices = selected_tile.tileColliderData.type == TileColliderType.Full ? TileConst.Full_Collider_Tile_Vertices : selected_tile.tileColliderData.vertices;
if (collider_vertices == null || collider_vertices.Length == 0)
{
collider_vertices = selected_tile.tileColliderData.vertices = new Vector2[TileConst.Full_Collider_Tile_Vertices.Length];
Array.Copy(TileConst.Full_Collider_Tile_Vertices, collider_vertices, TileConst.Full_Collider_Tile_Vertices.Length);
EditorUtility.SetDirty(tileSet);
}
// 将vertice的xy限制在[0,1]之间
for (int i = 0; i < collider_vertices.Length; ++i)
{
Vector2 collider_vertice = collider_vertices[i];
collider_vertice = collider_vertice.Snap2(tileSet.tile_pixel_size).ConvertElement(v => Mathf.Clamp01(v));
collider_vertices[i] = collider_vertice;
}
// 画边 draw edges
Vector3[] poly_edges = new Vector3[collider_vertices.Length + 1];
for (int i = 0; i < collider_vertices.Length; ++i)
{
Vector2 collider_vertice = collider_vertices[i];
collider_vertice.x = tile_rect.x + tile_rect.width * collider_vertice.x;
collider_vertice.y = tile_rect.yMax - tile_rect.height * collider_vertice.y;
Vector2 collider_vertice_next = collider_vertices[(i + 1) % collider_vertices.Length];
collider_vertice_next.x = tile_rect.x + tile_rect.width * collider_vertice_next.x;
collider_vertice_next.y = tile_rect.yMax - tile_rect.height * collider_vertice_next.y;
poly_edges[i] = collider_vertice;
poly_edges[i + 1] = collider_vertice_next;
//画边
Handles.color = Color.green;
Handles.DrawLine(collider_vertice, collider_vertice_next);
//画边上的法线 Draw normals
Handles.color = Color.white;
Vector3 normal_pos = (collider_vertice + collider_vertice_next) / 2f;
Handles.DrawLine(normal_pos, normal_pos + Vector3.Cross(collider_vertice_next - collider_vertice, Vector3.forward).normalized *tile_rect.yMin);
Handles.color = saved_handle_color;
}
float pixel_size = tile_rect.width / tileSet.tile_pixel_size.x;
if (selected_tile.tileColliderData.type == TileColliderType.Polygon)
{
bool is_adding_vertex_on = !is_dragging && e.shift && active_vertex_index == -1;
bool is_removing_vertex_on = !is_dragging && ((Application.platform == RuntimePlatform.OSXEditor) ? e.command : e.control) && collider_vertices.Length > 3;
//删除顶点
if (is_removing_vertex_on && active_vertex_index != -1 && e.type == EventType.MouseUp)
{
selected_tile.tileColliderData.vertices = new Vector2[collider_vertices.Length - 1];
for (int i = 0, j = 0; i < collider_vertices.Length; ++i)
{
if (i == active_vertex_index)
{
continue;
}
selected_tile.tileColliderData.vertices[j] = collider_vertices[i];
++j;
}
collider_vertices = selected_tile.tileColliderData.vertices;
active_vertex_index = -1;
}
float min_distance = float.MaxValue;
if (!is_dragging)
{
active_vertex_index = -1;
}
for (int i = 0; i < collider_vertices.Length; ++i)
{
Vector2 collider_vertice = collider_vertices[i];
collider_vertice.x = tile_rect.x + tile_rect.width * collider_vertice.x;
collider_vertice.y = tile_rect.yMax - tile_rect.height * collider_vertice.y;
if (is_dragging)
{
if (i == active_vertex_index)
{
collider_vertice = mouse_pos;
collider_vertice -= tile_rect.position;
collider_vertice.x = Mathf.Clamp(Mathf.Round(collider_vertice.x / pixel_size) * pixel_size, 0, tile_rect.width);
collider_vertice.y = Mathf.Clamp(Mathf.Round(collider_vertice.y / pixel_size) * pixel_size, 0, tile_rect.height);
collider_vertice += tile_rect.position;
collider_vertices[i].x = Mathf.Clamp01((collider_vertice.x - tile_rect.x) / tile_rect.width);
collider_vertices[i].y = Mathf.Clamp01((collider_vertice.y - tile_rect.yMax) / -tile_rect.height);
}
}
else
{
float distance = Vector2.Distance(mouse_pos, collider_vertice);
//distance < GUIStyleConst.Collider_Vertex_Handle_Style.normal.background.width是为了限定少于多少距离（该顶点与mouse_pos的距离）的时候才选中该顶点
if (distance <= min_distance && distance < GUIStyleConst.Collider_Vertex_Handle_Style.normal.background.width)
{
min_distance = distance;
active_vertex_index = i;
}
}
//画顶点
if (e.type == EventType.Repaint)
{
//画左上角的坐标
if (i == active_vertex_index)
{
GUIStyleConst.VertexCoord_Style.fontSize = (int)(Mathf.Min(12f, tile_rect.yMin / 2f));
GUI.Label(new Rect(0, 0, tile_rect.width, tile_rect.yMin), Vector2.Scale(collider_vertices[i], tileSet.tile_pixel_size).ToString(), GUIStyleConst.VertexCoord_Style);
}
GUI.color = active_vertex_index == i ? (is_removing_vertex_on ? Color.red : Color.cyan) : new Color(0.7f, 0.7f, 0.7f, 0.8f);
GUIStyleConst.Collider_Vertex_Handle_Style.Draw(new Rect(collider_vertice.x - GUIStyleConst.Collider_Vertex_Handle_Style.normal.background.width / 2, collider_vertice.y - GUIStyleConst.Collider_Vertex_Handle_Style.normal.background.height / 2, 1, 1), i.ToString(), false, false, false, false);
GUI.color = Color.white;
}
}
//添加顶点
if (is_adding_vertex_on)
{
//线段index
int segment_index;
Vector2 new_vertex_pos = ClosestPointToPolyLine(poly_edges, out segment_index);
if (e.type == EventType.MouseUp)
{
selected_tile.tileColliderData.vertices = new Vector2[collider_vertices.Length + 1];
segment_index = (segment_index + 1) % selected_tile.tileColliderData.vertices.Length;
for (int i = 0, j = 0; i < selected_tile.tileColliderData.vertices.Length; ++i)
{
if (segment_index == i)
{
new_vertex_pos.x = Mathf.Clamp(Mathf.Round(new_vertex_pos.x / pixel_size) * pixel_size, tile_rect.x, tile_rect.xMax);
new_vertex_pos.y = Mathf.Clamp(Mathf.Round(new_vertex_pos.y / pixel_size) * pixel_size, tile_rect.y, tile_rect.yMax);
selected_tile.tileColliderData.vertices[i].x = Mathf.Clamp01((new_vertex_pos.x - tile_rect.x) / tile_rect.width);
selected_tile.tileColliderData.vertices[i].y = Mathf.Clamp01((new_vertex_pos.y - tile_rect.yMax) / -tile_rect.height);
}
else
{
selected_tile.tileColliderData.vertices[i] = collider_vertices[j];
++j;
}
}
collider_vertices = selected_tile.tileColliderData.vertices;
active_vertex_index = -1;
}
else if (e.type == EventType.Repaint)
{
//添加顶点中移动鼠标，透明动态显示当前将要新增顶点的位置
GUI.color = new Color(0.7f, 0.7f, 0.7f, 0.8f);
GUIStyleConst.Collider_Vertex_Handle_Style.Draw(new Rect(new_vertex_pos.x - GUIStyleConst.Collider_Vertex_Handle_Style.normal.background.width / 2, new_vertex_pos.y - GUIStyleConst.Collider_Vertex_Handle_Style.normal.background.height / 2, 1, 1), segment_index.ToString(), false, false, false, false);
GUI.color = Color.white;
}
}
}
if (e.type == EventType.MouseUp)
{
is_save_changes = true;
//remove duplicated vertex
selected_tile.tileColliderData.vertices = selected_tile.tileColliderData.vertices.Distinct().ToArray();
if (selected_tile.tileColliderData.vertices.Length <= 2)
{
selected_tile.tileColliderData.vertices = saved_vertexs;
}
//snap vertex positions
selected_tile.tileColliderData.SnapVertices(tileSet);
}
}
}
if (GUILayout.Button("反转法线"))
{
selected_tile.tileColliderData.vertices.Reverse();
}
EditorGUILayout.Space();
string helpInfo =
" - 移动:点击图中的顶点并移动它的位置" + "\n" +
" - 添加:按住Shift并点击鼠标进行添加顶点" + "\n" +
" - 删除:按住Ctrl并且点击顶点进行删除顶点 (should be more than 3)";
EditorGUILayout.HelpBox(helpInfo, MessageType.Info);
// Collider Settings
float saved_label_width = EditorGUIUtility.labelWidth;
EditorGUIUtility.labelWidth = 40;
if (is_multi_selection)
{
EditorGUILayout.LabelField("* Multi-selection Edition", EditorStyles.boldLabel);
}
using (new EditorGUILayoutBeginHorizontalScope(GUILayout.MinWidth(140)))
{
EditorGUILayout.LabelField("Collider Data", EditorStyles.boldLabel);
if (GUILayout.Button("Copy", GUILayout.Width(50)))
{
copied_colliderData = selected_tile.tileColliderData.Clone();
}
if (GUILayout.Button("Paste", GUILayout.Width(50)))
{
selected_tile.tileColliderData = copied_colliderData.Clone();
is_save_changes = true;
}
}
EditorGUILayout.Space();
using (var check = new EditorGUIBeginChangeCheckScope())
{
EditorGUIUtility.labelWidth = 100;
EditorGUILayout.LabelField("Collider Type:", EditorStyles.boldLabel);
using (new EditorGUIIndentLevelScope(2))
{
string[] tile_collider_names = Enum.GetNames(typeof(TileColliderType));
selected_tile.tileColliderData.type = (TileColliderType)GUILayout.Toolbar((int)selected_tile.tileColliderData.type, tile_collider_names);
}
EditorGUIUtility.labelWidth = saved_label_width;
is_save_changes |= check.IsChanged;
}
//Save changes
if (is_save_changes)
{
if (is_multi_selection)
{
for (int i = 0; i < tileSet.tileSelection.selection_tileData_list.Count; ++i)
{
tileSet.tile_list[TileSetUtil.GetTileIdFromTileData(tileSet.tileSelection.selection_tileData_list[i])].tileColliderData = selected_tile.tileColliderData.Clone();
}
}
EditorUtility.SetDirty(tileSet);
//Refresh selected tileMap
TileMap selected_tileMap = Selection.activeGameObject ? Selection.activeGameObject.GetComponent <TileMap>() : null;
if (selected_tileMap)
{
selected_tileMap.Refresh(false, true);
}
}
}
//获取polyline（vertices组成的线段）线段上的离当前mouse poistion最近的点
//Get the point on a polyline (in 3D space) which is closest to the current mouse position
Vector3 ClosestPointToPolyLine(Vector3[] vertices, out int closest_segment_index)
{
float min_distance = float.MaxValue;
closest_segment_index = 0;
for (int i = 0; i < vertices.Length - 1; ++i)
{
float distance = HandleUtility.DistanceToLine(vertices[i], vertices[i + 1]);
if (distance < min_distance)
{
min_distance = distance;
closest_segment_index = i;
}
}
return(HandleUtility.ClosestPointToPolyLine(vertices));
}
}