#+title: Section 05 - Lesson 04 | Physics Nodes Review
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* Links
- [[../../toc.org][TOC - Godot Notes]]
- [[https://www.udemy.com/course/jumpstart-to-2d-game-development-godot-4-for-beginners/learn/lecture/49010953?start=0#overview][S05:L04 - video]]

* Notes
** Physics2D Nodes
- StaticBody2D :: useful for floor and walls
- CharacterBody2D :: characters
  - set velocity
  - physics collisions
  - scripting
- AnimatableBody2D :: moving platforms and doors
- RigidBody2D :: objects that have gravity and can be pushed by other objects
  - set force or impulse to it
  - e.g. thrust for rocket, tennis ball hit by racket

** how it works
- we do not control position, the engine does
- we supply velocity or force
- engine calucates where we go and speed / position

** Area2D vs Physics2D
*** similarities
- has one or more CollisionShape2D
- Sprite2D

*** differences
- much easier on calculations
- checks if one shape overlapping another
- Area2D is much more inaccurate in collisions