compsci_godot_albert/_subsections/sec03/lesson-03.org

Section 03 - Lesson 03 | Paddle Scene

• Links
• Notes
  • scenes
    • creating a new scene
    • using a Area2D root node
    • add collisoinshape2D
    • add sprite2D
    • refitting the collision shape
    • add paddle to game scene

Links

• TOC - Godot Notes
• S03:L11.03 - Paddle Scene

Notes

scenes

there are three basic scenes we are going to create

1. Gem Scene

   • Sprite2D
   • CollisionShape2D

2. Paddle Scene

   • Sprite2D
   • CollisionShape2D

3. Game Scene

   • Sprite2D
   • Paddle Scene
   • Timer
   • ScoreLabel
   • AudioStreamPLayer2D
   • AudioStreamPlayer

creating a new scene

1. go to the top of the center pane, and click on the plus.

   • this creates an empty unsaved scene

   • you must create a new root node.

     • click the '+' symbol in the upper left scene pane
     • search for Area2D: "a region of 2D space that detects other CollesionObject2Ds enteriinig or exiting it"

2. Menu->Scene->New Scene

   • select a root node, ie 2DScene - which will set your root node as a Node2D
   • or create one via the "+"

using a Area2D root node

• you must add a shape so the root node can interact with other objects and detect collisions or overlaps

  • CollisionShape2D
  • CollisionPolygon2D

add collisoinshape2D

• "+" -> CollisionShape2D

• add a shape

  • CollsionsShape2D node -> Inspector -> CollisionShape2D -> Shape -> <choose from dropdown>

add sprite2D

• the shape is only for background processing
• "+" -> Sprite2D
• drag and drop an image into Inspector->Sprite2D->Texture

refitting the collision shape

• currently the collision shape is being drawn first, then the sprite on top of it
• reorder so that the sprite gets drawn first, then the colision shape
• resize the collision shape, use transform if you need to

add paddle to game scene

• go to the game scene
• click the chain button in the upper left scene pain, the chain button is to the right of the "+"
• select which scene you want to add