UNITY | PROJECT | SPACE SHOOTER 2D | 7. Collision Detection

Creating Tags

• Create the tags for each GameObject

Tagging

• Tagging each GameObject with its own Tag

 

Adding Collider & RigidBody2D to “Player”

Adding Collider & RigidBody2D to “Enemy”

Adding Collider & RigidBody2D to “PlayerBullet”

Adding Collider & RigidBody2D to “EnemyBullet”

• Add Collider & RigidBody2D to each GameObject
  • Set “Is Trigger” in Collider to make it as “Trigger Collider”
  • Set “Gravity Scale“ in RigidBody2D to make them not to be affected by Gravity
  • Set “Freeze Rotation” in RigidBody2D to make them not spin when collided

OnTriggerEnter2D() | “PlayerControl” Script

OnTriggerEnter2D() | “EnemyControl” Script

OnTriggerEnter2D() | “PlayerBullet” Script

OnTriggerEnter2D() | “EnemyBullet” Script

• Add “OnTriggerEnter2D(Collider2D)” method to each GameObject to detect and activate “Destroy()”
• To Sort each Collision, Use “Collider2D.tag”

 

Collision Detection Working Well

“PlayExplosion()” | “PlayerControl” Script

“PlayExplosion()” | “EnemyControl” Script

• To Destroy “Player” or “Enemy”
  • Create a Function, “PlayExplosion()”
    • Instantiate the Explosion(Don’t forget to use “this.”)
  • Write the Function inside “TriggerEnter2D()” to make the instantiation of Explosion happen when a collision is detected

Explosion Animation & Collision Detection

UNITY TUTORIAL | PHYSICS | 3D Physics | Colliders as Trigger

UNITY TUTORIAL

PHYSICS | 3D Physics | Colliders as Trigger

 

Trigger | BoxCollider | Is Trigger

 

Is Trigger

Trigger | BoxCollider | CollisionDetection script

OnTriggerEnter() | OnTriggerStay() | OnTriggerExit()

Falling Object | RigidBody

OnTriggerEnter() | OnTriggerStay() | OnTriggerExit()

Hovering​ Script

Collider.attachedRigidBody | AddForce() | ForceMode.Acceleration()

Hovering Simple

Hovering Force Changing

Freeze Position

Hovering with FallingObject Frozen