Basic notions in Unity

Unity.md

Unity editor

• Project (bottom): Game assets (sprites, sounds, scripts, fonts...)
• Hierarchy (left): Assets in scene (i.e. current level)
• Inspector (right): Edit game object (position, rotation, scale, and to add components)
• Coordinate system: Left-handed with y-up

Notions

• Game objects: Scene objects (characters, props, scenery, camera...)
• Components: Functional part of a game object, e.g. SpriteRenderer (A game objects can have multiple components)
• Script class: Blueprint for creating a new component
• Prefab: Game object with its components (better for instancing)

Scripts

• Coroutine: Function executed over multiple frames

Physics

• Rigid body: Component that allows a game object to be affected by gravity & other forces
• Collider: A component that defines object's physical shape for the purpose of collisions
• Kinematic Rigid body: is not affected by gravity & forces, its motion being controlled by transform variable or by animation

Resources

• Youtube tutorial
• Unity official manual