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(Feature Request) Add Negative Potion Effects

Add negative effect amplifiers to potion effects when using the /effect command you should be able to use negative amplifiers.

Please do a review on this idea because I think it will indeed help map makers out to a lot with creating more types of content and thanks for listening as always.

Examples,

• If you do /effect @p jump_boost 10 -1 false it would decrease the player/entity jump height for each level that is -1 until eventually, the player/entity is not able to jump at all when given a low enough amplifier.
  
  
• If you do /effect @p strength 10 -1 false it would decrease the player/entity attack strength for each level that is -1 until eventually, the player/entity is not able to create any damage at all when given a low enough amplifier.
  
  
• If you do /effect @p levitation 10 -1 false it would make the player/entity levitate downwards for each level that is -1 until eventually, the player/entity will levitate downwards instantly below when given a low enough amplifier.
  
  
• If you do /effect @p hunger 10 -1 false it would decrease for the players hunger for each level that is -1 until eventually, the player is not able to get hungry at all when given a low enough amplifier.
  
  
• If you do /effect @p slow_falling 10 -1 false it would fall faster and increase for the player/entity for each level that is -1 until eventually, the player/entity will fall and die on contact with any block upon falling on a half slab when given a low enough amplifier.

StealthyExpertX shared this idea.

• March 16, 2019 20:24
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  tryashtar commented

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  • March 16, 2019 03:10
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  All of those commands are invalid in java edition.

  Effect amplifiers greater than 128 do overflow, but only on the client. It only "works" for players, but just causes desyncs and resets to zero when you relog.

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  Joost van Assenbergh commented

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  • June 28, 2019 22:42
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  Some effects already go negative (in JE atleast) when set to a too high value:

  for example: /effect @p jump_boost 10 [anything above 127] Will give you a negative jump boost, first it appears you just can't jump, but when you jump on things like beds or slime block, you do just, because you have negative y momentum the game handles it the same way it does when you fall on that kind of block.