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ConcavePolygonShape2D
繼承： Shape2D < Resource < RefCounted < Object
用於物理碰撞的 2D 多線段形狀。
說明
A 2D polyline shape, intended for use in physics. Used internally in CollisionPolygon2D when it's in CollisionPolygon2D.BUILD_SEGMENTS mode.
Being just a collection of interconnected line segments, ConcavePolygonShape2D is the most freely configurable single 2D shape. It can be used to form polygons of any nature, or even shapes that don't enclose an area. However, ConcavePolygonShape2D is hollow even if the interconnected line segments do enclose an area, which often makes it unsuitable for physics or detection.
Note: When used for collision, ConcavePolygonShape2D is intended to work with static CollisionShape2D nodes like StaticBody2D and will likely not behave well for CharacterBody2Ds or RigidBody2Ds in a mode other than Static.
Warning: Physics bodies that are small have a chance to clip through this shape when moving fast. This happens because on one frame, the physics body may be on the "outside" of the shape, and on the next frame it may be "inside" it. ConcavePolygonShape2D is hollow, so it won't detect a collision.
Performance: Due to its complexity, ConcavePolygonShape2D is the slowest 2D collision shape to check collisions against. Its use should generally be limited to level geometry. If the polyline is closed, CollisionPolygon2D's CollisionPolygon2D.BUILD_SOLIDS mode can be used, which decomposes the polygon into convex ones; see ConvexPolygonShape2D's documentation for instructions.
屬性
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屬性說明
PackedVector2Array segments = PackedVector2Array() 🔗
void set_segments(value: PackedVector2Array)
PackedVector2Array get_segments()
頂點陣列，構成 ConcavePolygonShape2D 的線段。該（長度能被二整除的）陣列自然兩兩群組（每組代表一條線段）；每組都由一條線段的起點和終點構成。
Note: The returned array is copied and any changes to it will not update the original property value. See PackedVector2Array for more details.