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What do you need to know about unity collision detection 2d?
If the Gameobject sprite is a complex drawing, just an approximation of its shape will be necessary to work, because the Collider 2D is invisible and not distinguishable during the gameplay! So the sprite is the drawing, the collider is the shape, what does it mean?
How to set a collider as a trigger in Unity?
1- Select a Gameobject in the scene and click on add component. 2- Type “collider 2D” or “rigidbody 2D” in the search box and select the component (for Collider 2D we will see different types, we’re just going to talk about it). How can we set a collider as a trigger? Just enabling the right checkbox property in the Collider 2D component.
What do you need to know about collision detection?
To detect collisions in a Gameobject we need a Collider 2D, with the right type according to our needs. To allow physics 2D to affect a Gameobject we need a RigidBody 2D. Keep in mind all the rules we discussed before configuring the game properly and you will avoid unwanted behaviors.
What do you need to know about polygon Collider 2D?
Polygon collider 2D is for freeform collision areas. Edge collider 2D is for freeform collision areas and areas which aren’t completely enclosed (such as rounded convex corners). Composite collider 2D is for merging Box Collider 2Ds and Polygon Collider 2Ds.
Is it possible to detect a collision between a sprite?
However, this will displace all the objects in your canvas so it wont be shown on the game window anymore and you will have to re position the UI objects. So for this you can create a separate canvas just for the UI Images that have collision and render that canvas to world space.
Do you need rigidbody 2D for collision detection?
You don’t really need to set the Rigidbody 2D for static objects , just the collider 2D is necessary to detect collisions, but if a static object needs to be moved or reconfigured at run time, it is faster to do so when it has its own Rigidbody 2D and this will be our body!