@JonnyC616

"SpawnPotentials" holds a list of different entities that are capable of being summoned. "Weight" is the chance in comparison to one another. Since the weights are all equal, they all have an equal chance of spawning. The higher the value, the higher the chance for that entity compared to others.

"Delay" must be -1 to begin within "SpawnPotentials".


Compact:


/setblock -247 32 -22 minecraft:mob_spawner 0 replace {SpawnPotentials:[{Weight:1,Entity:{id:"Slime",Size:0,Pos:[-247.5,37.0,-22.5]}},{Weight:1,Entity:{id:"Slime",Size:1,Pos:[-247.5,37.0,-22.5]}},{Weight:1,Entity:{id:"Slime",Size:2,Pos:[-247.5,37.0,-22.5]}},{Weight:1,Entity:{id:"Slime",Size:3,Pos:[-247.5,37.0,-22.5]}}],SpawnCount:4,SpawnRange:100,RequiredPlayerRange:100,Delay:-1,MinSpawnDelay:100,MaxSpawnDelay:100,MaxNearbyEntities:8}


Indented:


/setblock -247 32 -22 minecraft:mob_spawner 0 replace {
	SpawnPotentials:[
		{
			Weight:1,
			Entity:{
				id:"Slime",
				Size:0,
				Pos:[-247.5,37.0,-22.5]
			}
		},
		{
			Weight:1,
			Entity:{
				id:"Slime",
				Size:1,
				Pos:[-247.5,37.0,-22.5]
			}
		},
		{
			Weight:1,
			Entity:{
				id:"Slime",
				Size:2,
				Pos:[-247.5,37.0,-22.5]
			}
		},
		{
			Weight:1,
			Entity:{
				id:"Slime",
				Size:3,
				Pos:[-247.5,37.0,-22.5]
			}
		}
	],
	SpawnCount:4,
	SpawnRange:100,
	RequiredPlayerRange:100,
	Delay:5,
	MinSpawnDelay:100,
	MaxSpawnDelay:100,
	MaxNearbyEntities:8
}