s&box

A game enemy class BarrelMystery that inherits from Barrel. It configures explosion properties on start and overrides DropLoot to spawn coins and various item pickups around the barrel with randomized directions and chances, sometimes targeting the player for coin magnetization or giving a perk.

Networking

using System;
using Sandbox;
using Sandbox.Diagnostics;

public class BarrelMystery : Barrel
{
	public override EnemyType EnemyType => EnemyType.BarrelMystery;
	public override EnemyType KillStatEnemyType => EnemyType.Barrel;

	protected override void OnStart()
	{
		base.OnStart();

		_explosionRadius = 110f;
		_explosionDamage = 40f;
		_explodeTime = 1f;

		_debrisName = "barrel_exploding_debris";

		if ( IsProxy )
			return;

	}

	protected override void DropLoot( Player player )
	{
		var dropDir = player.IsValid() ? (player.Position2D - Position2D).Normal : Utils.GetRandomVector();

		// COINS
		int numCoins = Game.Random.Int( 1, 3 );
		for ( int i = 0; i < numCoins; i++ )
		{
			var pos = Position2D + Utils.GetRandomVectorInCone( dropDir, coneDegrees: 160f ) * Game.Random.Float( 1f, 3f );
			var dir = (pos - Position2D).Normal;

			var magnetizeChance = player.IsValid() ? player.GetSyncStat( PlayerStat.KillMagnetizeCoinChance ) : 0f;
			Player magnetizePlayer = Game.Random.Float( 0f, 1f ) < magnetizeChance ? player : null;

			Manager.Instance.SpawnCoin( pos, value: Game.Random.Int( 1, 2 ), dir, magnetizePlayer );
		}

		var healthPackChance = 0.95f;
		if ( Game.Random.Float( 0f, 1f ) < healthPackChance )
			Manager.Instance.SpawnItem( "health_pack", Position2D, Utils.GetRandomVectorInCone( dropDir, coneDegrees: 260f ) );

		// MAGNET
		var magnetChance = 0.9f;
		if ( Game.Random.Float( 0f, 1f ) < magnetChance )
		{
			var pos = Position2D + Utils.GetRandomVector() * Game.Random.Float( 1f, 5f );
			Manager.Instance.SpawnItem( "magnet", pos, Utils.GetRandomVectorInCone(dropDir, coneDegrees: 260f ) );
		}

		var bombChance = 0.85f;
		if ( Game.Random.Float( 0f, 1f ) < bombChance )
		{
			var pos = Position2D + Utils.GetRandomVector() * Game.Random.Float( 1f, 5f );
			Manager.Instance.SpawnItem( "bomb", Position2D, Utils.GetRandomVector() );
		}

		var rerollChance = 0.6f;
		if ( Game.Random.Float( 0f, 1f ) < rerollChance )
		{
			var pos = Position2D + Utils.GetRandomVector() * Game.Random.Float( 1f, 5f );
			Manager.Instance.SpawnItem( "reroll_item", Position2D, Utils.GetRandomVectorInCone(dropDir, coneDegrees: 260f ) );
		}

		var banishChance = 0.33f;
		if ( Game.Random.Float( 0f, 1f ) < banishChance )
		{
			var pos = Position2D + Utils.GetRandomVector() * Game.Random.Float( 1f, 5f );
			Manager.Instance.SpawnItem( "banish_item", Position2D, Utils.GetRandomVectorInCone(dropDir, coneDegrees: 260f ) );
		}

		var armorChance = 0.66f;
		if ( Game.Random.Float( 0f, 1f ) < armorChance )
		{
			var pos = Position2D + Utils.GetRandomVector() * Game.Random.Float( 1f, 5f );
			Manager.Instance.SpawnItem( "armor_item", Position2D, Utils.GetRandomVectorInCone( dropDir, coneDegrees: 260f ) );
		}

		var numDeadPlayers = Manager.Instance.Players.Count - Manager.Instance.AlivePlayers.Count;
		if ( numDeadPlayers > 0 )
		{
			var reviveChance = 0.9f;
			if ( Game.Random.Float( 0f, 1f ) < reviveChance )
			{
				var pos = Position2D + Utils.GetRandomVector() * Game.Random.Float( 1f, 5f );
				Manager.Instance.SpawnItem( "revive_soul", Position2D, Utils.GetRandomVectorInCone( dropDir, coneDegrees: 300f ) );
			}
		}

		if ( player.IsValid() )
		{
			var perkChance = 0.33f;
			if ( Game.Random.Float( 0f, 1f ) < perkChance )
			{
				var pos = Position2D + Utils.GetRandomVector() * Game.Random.Float( 1f, 5f );
				player.GiveRandomPerkItemRpc( pos, Utils.GetRandomVectorInCone( dropDir, coneDegrees: 160f ), Rarity.None );
			}
		}
	}
}