117 lines
4.2 KiB
GDScript
117 lines
4.2 KiB
GDScript
# 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 CyclopsSnappingSystem
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class_name SnappingSystemVertex
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@export var max_radius:float = .2
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const SNAPPING_TOOL_ID:String = "vertex"
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#var snap_to_grid_util:SnapToGridUtil = SnapToGridUtil.new()
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var settings:SnappingSystemVertexSettings = SnappingSystemVertexSettings.new()
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func _activate(plugin:CyclopsLevelBuilder):
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super._activate(plugin)
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var cache:Dictionary = plugin.get_snapping_cache(SNAPPING_TOOL_ID)
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settings.load_from_cache(cache)
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func _deactivate():
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super._deactivate()
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flush_cache()
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func flush_cache():
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var cache:Dictionary = settings.save_to_cache()
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plugin.set_snapping_cache(SNAPPING_TOOL_ID, cache)
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#Point is in world space
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func _snap_point(point:Vector3, query:SnappingQuery)->Vector3:
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var screen_point:Vector2 = query.viewport_camera.unproject_position(point)
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var blocks:Array[CyclopsBlock] = plugin.get_blocks()
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var best_vertex:Vector3 = Vector3.INF
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var best_dist:float = INF
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#print("Exclude blocks ", query.exclude_blocks)
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for block in blocks:
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if query.exclude_blocks.has(block.get_path()):
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continue
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#print("check block ", block.name)
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var ctrl_mesh:ConvexVolume = block.control_mesh
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var bounds_local:AABB = ctrl_mesh.bounds
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var obj_center:Vector3 = block.global_transform * bounds_local.get_center()
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var obj_corner:Vector3 = block.global_transform * bounds_local.position
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var radius:float = obj_corner.distance_to(obj_center)
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var obj_offset:Vector3 = obj_center + query.viewport_camera.global_basis.x * radius
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var screen_obj_center:Vector2 = query.viewport_camera.unproject_position(obj_center)
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var screen_obj_offset:Vector2 = query.viewport_camera.unproject_position(obj_offset)
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#print("screen_point ", screen_point)
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#print("screen_obj_center ", screen_obj_center)
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#print("screen_obj_offset ", screen_obj_offset)
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#print("screen_point.distance_to(screen_obj_center) ", screen_point.distance_to(screen_obj_center))
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#print("screen_obj_center.distance_to(screen_obj_offset) ", screen_obj_center.distance_to(screen_obj_offset))
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if screen_point.distance_to(screen_obj_center) > \
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screen_obj_center.distance_to(screen_obj_offset) + settings.snap_radius:
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#Skip if bounding box text fails
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continue
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#print("snap block ", block.name)
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for v_idx in ctrl_mesh.vertices.size():
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var v:ConvexVolume.VertexInfo = ctrl_mesh.vertices[v_idx]
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var v_point_world:Vector3 = block.global_transform * v.point
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var v_point_screen:Vector2 = query.viewport_camera.unproject_position(v_point_world)
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var dist:float = v_point_screen.distance_to(screen_point)
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#print("dist ", dist, " settings.snap_radius ", settings.snap_radius)
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if dist > settings.snap_radius:
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continue
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#print("try vertex ", v_point_world)
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if dist < best_dist:
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# if dist < best_dist:
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best_vertex = v_point_world
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best_dist = dist
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return best_vertex if is_finite(best_dist) else point
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func _get_properties_editor()->Control:
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var ed:SnappingSystemVertexPropertiesEditor = preload("res://addons/cyclops_level_builder/snapping/snapping_system_vertex_properties_editor.tscn").instantiate()
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ed.snap_tool = self
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return ed
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