333 lines
11 KiB
GDScript3
333 lines
11 KiB
GDScript3
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# MIT License
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#
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# Copyright (c) 2023 Mark McKay
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# https://github.com/blackears/cyclopsLevelBuilder
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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@tool
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extends ToolEditBase
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class_name ToolEditVertex
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const TOOL_ID:String = "edit_vertex"
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var handles:Array[HandleVertex] = []
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enum ToolState { NONE, READY, DRAGGING, DRAGGING_ADD }
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var tool_state:ToolState = ToolState.NONE
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#var mouse_hover_pos:Vector2
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var drag_handle:HandleVertex
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var drag_mouse_start_pos:Vector2
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var drag_handle_start_pos:Vector3
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var added_point_pos:Vector3
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var cmd_move_vertex:CommandMoveVertices
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var cmd_add_vertex:CommandAddVertices
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var tracked_blocks_root:CyclopsBlocks
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func _get_tool_id()->String:
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return TOOL_ID
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func _draw_tool(viewport_camera:Camera3D):
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var global_scene:CyclopsGlobalScene = builder.get_global_scene()
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global_scene.clear_tool_mesh()
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#var blocks_root:CyclopsBlocks = builder.active_node
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for h in handles:
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var block:CyclopsConvexBlock = builder.get_node(h.block_path)
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var v:ConvexVolume.VertexInfo = block.control_mesh.vertices[h.vertex_index]
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#print("draw vert %s %s" % [h.vertex_index, v.selected])
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var active:bool = block.control_mesh.active_vertex == h.vertex_index
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global_scene.draw_vertex(h.position, pick_material(global_scene, v.selected, active))
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func setup_tool():
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handles = []
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# print("setup_tool")
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var blocks_root:CyclopsBlocks = builder.active_node
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if blocks_root == null:
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return
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for child in blocks_root.get_children():
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if child is CyclopsConvexBlock:
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var block:CyclopsConvexBlock = child
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if block.selected:
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# print("block sel %s" % block.block_data.vertex_selected)
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for v_idx in block.control_mesh.vertices.size():
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var v:ConvexVolume.VertexInfo = block.control_mesh.vertices[v_idx]
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var handle:HandleVertex = HandleVertex.new()
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handle.position = v.point
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handle.vertex_index = v_idx
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handle.initial_position = v.point
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handle.block_path = block.get_path()
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handles.append(handle)
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#print("adding handle %s" % handle)
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func pick_closest_handle(blocks_root:CyclopsBlocks, viewport_camera:Camera3D, position:Vector2, radius:float)->HandleVertex:
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var best_dist:float = INF
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var best_handle:HandleVertex = null
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var origin:Vector3 = viewport_camera.project_ray_origin(position)
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var dir:Vector3 = viewport_camera.project_ray_normal(position)
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for h in handles:
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var h_world_pos:Vector3 = blocks_root.global_transform * h.position
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var h_screen_pos:Vector2 = viewport_camera.unproject_position(h_world_pos)
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if position.distance_squared_to(h_screen_pos) > radius * radius:
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#Failed handle radius test
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continue
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var offset:Vector3 = h_world_pos - origin
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var parallel:Vector3 = offset.project(dir)
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var dist = parallel.dot(dir)
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if dist <= 0:
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#Behind camera
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continue
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#print("h pos %s ray orig %s ray dir %s offset %s para %s dist %s perp %s" % [h.position, ray_origin, ray_dir, offset, parallel, dist, perp])
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if dist >= best_dist:
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continue
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best_dist = dist
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best_handle = h
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return best_handle
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func active_node_changed():
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if tracked_blocks_root != null:
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tracked_blocks_root.blocks_changed.disconnect(active_node_updated)
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tracked_blocks_root = null
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setup_tool()
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tracked_blocks_root = builder.active_node
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if tracked_blocks_root:
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tracked_blocks_root.blocks_changed.connect(active_node_updated)
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func active_node_updated():
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setup_tool()
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func _activate(builder:CyclopsLevelBuilder):
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super._activate(builder)
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builder.mode = CyclopsLevelBuilder.Mode.EDIT
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builder.edit_mode = CyclopsLevelBuilder.EditMode.VERTEX
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builder.active_node_changed.connect(active_node_changed)
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tracked_blocks_root = builder.active_node
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if tracked_blocks_root:
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tracked_blocks_root.blocks_changed.connect(active_node_updated)
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setup_tool()
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func _deactivate():
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super._deactivate()
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builder.active_node_changed.disconnect(active_node_changed)
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if tracked_blocks_root != null:
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tracked_blocks_root.blocks_changed.disconnect(active_node_updated)
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func _gui_input(viewport_camera:Camera3D, event:InputEvent)->bool:
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if !builder.active_node is CyclopsBlocks:
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return false
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var gui_result = super._gui_input(viewport_camera, event)
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if gui_result:
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return true
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var blocks_root:CyclopsBlocks = self.builder.active_node
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var grid_step_size:float = pow(2, builder.get_global_scene().grid_size)
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if event is InputEventMouseButton:
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var e:InputEventMouseButton = event
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if e.button_index == MOUSE_BUTTON_LEFT:
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if e.is_pressed():
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if tool_state == ToolState.NONE:
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drag_mouse_start_pos = e.position
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tool_state = ToolState.READY
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return true
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else:
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if tool_state == ToolState.READY:
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#print("cmd select")
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var handle:HandleVertex = pick_closest_handle(blocks_root, viewport_camera, drag_mouse_start_pos, builder.handle_screen_radius)
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var cmd:CommandSelectVertices = CommandSelectVertices.new()
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cmd.builder = builder
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for child in builder.active_node.get_children():
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if child is CyclopsConvexBlock:
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var cur_block:CyclopsConvexBlock = child
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if cur_block.selected:
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cmd.add_vertices(cur_block.get_path(), [])
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cmd.selection_type = Selection.choose_type(e.shift_pressed, e.ctrl_pressed)
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if handle:
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cmd.add_vertex(handle.block_path, handle.vertex_index)
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#print("selectibg %s" % handle.vertex_index)
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if cmd.will_change_anything():
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var undo:EditorUndoRedoManager = builder.get_undo_redo()
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cmd.add_to_undo_manager(undo)
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tool_state = ToolState.NONE
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cmd_move_vertex = null
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elif tool_state == ToolState.DRAGGING:
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#Finish drag
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#print("cmd finish drag")
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var undo:EditorUndoRedoManager = builder.get_undo_redo()
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cmd_move_vertex.add_to_undo_manager(undo)
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tool_state = ToolState.NONE
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elif tool_state == ToolState.DRAGGING_ADD:
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#Finish drag
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#print("cmd finish drag add")
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var undo:EditorUndoRedoManager = builder.get_undo_redo()
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cmd_add_vertex.add_to_undo_manager(undo)
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tool_state = ToolState.NONE
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cmd_add_vertex = null
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elif event is InputEventMouseMotion:
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var e:InputEventMouseMotion = event
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#mouse_hover_pos = e.position
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if (e.button_mask & MOUSE_BUTTON_MASK_MIDDLE):
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return false
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if tool_state == ToolState.READY:
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if e.position.distance_squared_to(drag_mouse_start_pos) > MathUtil.square(builder.drag_start_radius):
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var handle:HandleVertex = pick_closest_handle(blocks_root, viewport_camera, drag_mouse_start_pos, builder.handle_screen_radius)
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if handle:
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drag_handle = handle
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drag_handle_start_pos = handle.position
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tool_state = ToolState.DRAGGING
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cmd_move_vertex = CommandMoveVertices.new()
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cmd_move_vertex.builder = builder
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var handle_block:CyclopsConvexBlock = builder.get_node(handle.block_path)
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if handle_block.control_mesh.vertices[handle.vertex_index].selected:
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for child in blocks_root.get_children():
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if child is CyclopsConvexBlock:
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var block:CyclopsConvexBlock = child
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if block.selected:
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var vol:ConvexVolume = block.control_mesh
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for v_idx in vol.vertices.size():
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var v:ConvexVolume.VertexInfo = vol.vertices[v_idx]
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if v.selected:
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cmd_move_vertex.add_vertex(block.get_path(), v_idx)
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else:
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cmd_move_vertex.add_vertex(handle.block_path, handle.vertex_index)
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return true
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else:
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if e.ctrl_pressed:
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var pick_origin:Vector3 = viewport_camera.project_ray_origin(e.position)
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var pick_dir:Vector3 = viewport_camera.project_ray_normal(e.position)
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var result:IntersectResults = blocks_root.intersect_ray_closest_selected_only(pick_origin, pick_dir)
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if result:
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#print("start drag add")
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drag_handle_start_pos = result.position
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added_point_pos = result.position
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tool_state = ToolState.DRAGGING_ADD
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cmd_add_vertex = CommandAddVertices.new()
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cmd_add_vertex.builder = builder
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cmd_add_vertex.block_path = result.object.get_path()
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cmd_add_vertex.points_to_add = [added_point_pos]
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#print("init point %s" % added_point_pos)
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return true
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elif tool_state == ToolState.DRAGGING:
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var origin:Vector3 = viewport_camera.project_ray_origin(e.position)
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var dir:Vector3 = viewport_camera.project_ray_normal(e.position)
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var start_pos:Vector3 = origin + builder.block_create_distance * dir
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var w2l = blocks_root.global_transform.inverse()
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var origin_local:Vector3 = w2l * origin
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var dir_local:Vector3 = w2l.basis * dir
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var drag_to:Vector3
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if e.alt_pressed:
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drag_to = MathUtil.closest_point_on_line(origin_local, dir_local, drag_handle_start_pos, Vector3.UP)
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else:
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drag_to = MathUtil.intersect_plane(origin_local, dir_local, drag_handle_start_pos, Vector3.UP)
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drag_to = MathUtil.snap_to_grid(drag_to, grid_step_size)
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drag_handle.position = drag_to
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cmd_move_vertex.move_offset = drag_to - drag_handle.initial_position
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cmd_move_vertex.do_it()
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# draw_tool()
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return true
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elif tool_state == ToolState.DRAGGING_ADD:
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var origin:Vector3 = viewport_camera.project_ray_origin(e.position)
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var dir:Vector3 = viewport_camera.project_ray_normal(e.position)
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var start_pos:Vector3 = origin + builder.block_create_distance * dir
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var w2l = blocks_root.global_transform.inverse()
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var origin_local:Vector3 = w2l * origin
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var dir_local:Vector3 = w2l.basis * dir
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var drag_to:Vector3
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if e.alt_pressed:
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drag_to = MathUtil.closest_point_on_line(origin_local, dir_local, drag_handle_start_pos, Vector3.UP)
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else:
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drag_to = MathUtil.intersect_plane(origin_local, dir_local, drag_handle_start_pos, Vector3.UP)
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drag_to = MathUtil.snap_to_grid(drag_to, grid_step_size)
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added_point_pos = drag_to
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#print("drag point to %s" % drag_to)
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cmd_add_vertex.points_to_add = [drag_to]
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cmd_add_vertex.do_it()
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return false
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