We use triggers everywhere in our games. This is one of the most useful pieces of code that you will use in your game dev journey. When a player enters a trigger zone or trigger volume you might want to spawn an enemy, start a dialogue or trigger a cinematic sequence... The possibilities are endless!
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TriggerZone.cs
https://pastebin.com/gatH6qRy
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0:00 Intro
0:12 Setup
0:25 Trigger Zone Code
1:00 Testing I
1:07 One Shot Trigger Code
1:18 Testing II
1:28 Collision Tags Code
1:34 Testing III