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Using testfor to give a potion effect

Clear item with custom name?How do I get armor to add a potion effect?How to do testfor with different mapsHow can I make a short timer using only command blocks?How to testfor player holding a a certain amount of specified itemExecute command in entity with potion effectHow to testfor if an ArmorStand got killed?How to create an “Effect Aura” for players?Command block problem detecting armourIs there a way to give a player a score if they are holding a certain item

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1

How do you use a testfor command to give you a potion effect? I want a command that makes it so when you hold a stick called "Flashlight", you get night vision.

Can anyone help?

minecraft minecraft-commands

share|improve this question

edited Sep 30 '16 at 15:22

Vemonus

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asked Jul 26 '16 at 23:20

fsg2fsg2

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add a comment | 

1

How do you use a testfor command to give you a potion effect? I want a command that makes it so when you hold a stick called "Flashlight", you get night vision.

Can anyone help?

minecraft minecraft-commands

share|improve this question

edited Sep 30 '16 at 15:22

Vemonus

55.6k4444 gold badges222222 silver badges354354 bronze badges

asked Jul 26 '16 at 23:20

fsg2fsg2

1711 gold badge11 silver badge33 bronze badges

add a comment | 

How do you use a testfor command to give you a potion effect? I want a command that makes it so when you hold a stick called "Flashlight", you get night vision.

Can anyone help?

minecraft minecraft-commands

share|improve this question

edited Sep 30 '16 at 15:22

Vemonus

55.6k4444 gold badges222222 silver badges354354 bronze badges

asked Jul 26 '16 at 23:20

fsg2fsg2

1711 gold badge11 silver badge33 bronze badges

share|improve this question

edited Sep 30 '16 at 15:22

Vemonus

55.6k4444 gold badges222222 silver badges354354 bronze badges

asked Jul 26 '16 at 23:20

fsg2fsg2

1711 gold badge11 silver badge33 bronze badges

share|improve this question

edited Sep 30 '16 at 15:22

Vemonus

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asked Jul 26 '16 at 23:20

fsg2fsg2

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edited Sep 30 '16 at 15:22

Vemonus

55.6k4444 gold badges222222 silver badges354354 bronze badges

edited Sep 30 '16 at 15:22

Vemonus

55.6k4444 gold badges222222 silver badges354354 bronze badges

asked Jul 26 '16 at 23:20

fsg2fsg2

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asked Jul 26 '16 at 23:20

fsg2fsg2

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1 Answer
1

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2

/testfor will not be useful as it simply outputs if there was a match and will not allow you to target the one(s) who matched.

You will want to use /scoreboard instead, which can apply a label based on a target's NBT data either in the form of a score or "tag". Tag labels are much more efficient to use for simple boolean situations like this one.

---

The SelectedItem compound holds a copy of the player's currently-held item on the hotbar, minus the Slot tag. You can apply a label based on that, though it must be removed first in the event the player is no longer holding the item:

All command blocks are set to "Always Active" and "Unconditional".

1. 
   

   Remove the label from players first, so that if they are no longer holding the item they will not receive the effect anymore.

   
   
   

   /scoreboard players tag @a[tag=flashlight] remove flashlight
   

   
   


2. 
   

   Add a "flashlight" label to players that are holding a stick named "Flashlight".

   
   
   

   /scoreboard players tag @a add flashlight SelectedItem:id:"minecraft:stick",tag:display:Name:"Flashlight"
   

   
   


3. 
   

   And you can then use the /effect command to correctly target the players who matched, as they will have a "flashlight" label now:

   
   
   

   /effect @a[tag=flashlight] minecraft:night_vision
   

   
   

share|improve this answer

edited Jul 27 '16 at 20:16

answered Jul 26 '16 at 23:43

SkylinerwSkylinerw

11.7k11 gold badge1515 silver badges3232 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Do I have to use these as different commands? Activated rapidly, simultaneously? I'm so sorry I don't understand! XD! I'm so bad at commands! XD! Can you tell me how to set it up?
  
  – fsg2
  Jul 27 '16 at 14:38
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @fsg2 Sure, added an image example of a setup!
  
  – Skylinerw
  Jul 27 '16 at 20:17
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thx u sssooo mmuuucchh!!
  
  – fsg2
  Jul 30 '16 at 3:36
  

  
  
  
  

add a comment | 

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2

/testfor will not be useful as it simply outputs if there was a match and will not allow you to target the one(s) who matched.

You will want to use /scoreboard instead, which can apply a label based on a target's NBT data either in the form of a score or "tag". Tag labels are much more efficient to use for simple boolean situations like this one.

---

The SelectedItem compound holds a copy of the player's currently-held item on the hotbar, minus the Slot tag. You can apply a label based on that, though it must be removed first in the event the player is no longer holding the item:

All command blocks are set to "Always Active" and "Unconditional".

1. 
   

   Remove the label from players first, so that if they are no longer holding the item they will not receive the effect anymore.

   
   
   

   /scoreboard players tag @a[tag=flashlight] remove flashlight
   

   
   


2. 
   

   Add a "flashlight" label to players that are holding a stick named "Flashlight".

   
   
   

   /scoreboard players tag @a add flashlight SelectedItem:id:"minecraft:stick",tag:display:Name:"Flashlight"
   

   
   


3. 
   

   And you can then use the /effect command to correctly target the players who matched, as they will have a "flashlight" label now:

   
   
   

   /effect @a[tag=flashlight] minecraft:night_vision
   

   
   

share|improve this answer

edited Jul 27 '16 at 20:16

answered Jul 26 '16 at 23:43

SkylinerwSkylinerw

11.7k11 gold badge1515 silver badges3232 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Do I have to use these as different commands? Activated rapidly, simultaneously? I'm so sorry I don't understand! XD! I'm so bad at commands! XD! Can you tell me how to set it up?
  
  – fsg2
  Jul 27 '16 at 14:38
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @fsg2 Sure, added an image example of a setup!
  
  – Skylinerw
  Jul 27 '16 at 20:17
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thx u sssooo mmuuucchh!!
  
  – fsg2
  Jul 30 '16 at 3:36
  

  
  
  
  

add a comment | 

2

/testfor will not be useful as it simply outputs if there was a match and will not allow you to target the one(s) who matched.

You will want to use /scoreboard instead, which can apply a label based on a target's NBT data either in the form of a score or "tag". Tag labels are much more efficient to use for simple boolean situations like this one.

---

The SelectedItem compound holds a copy of the player's currently-held item on the hotbar, minus the Slot tag. You can apply a label based on that, though it must be removed first in the event the player is no longer holding the item:

All command blocks are set to "Always Active" and "Unconditional".

1. 
   

   Remove the label from players first, so that if they are no longer holding the item they will not receive the effect anymore.

   
   
   

   /scoreboard players tag @a[tag=flashlight] remove flashlight
   

   
   


2. 
   

   Add a "flashlight" label to players that are holding a stick named "Flashlight".

   
   
   

   /scoreboard players tag @a add flashlight SelectedItem:id:"minecraft:stick",tag:display:Name:"Flashlight"
   

   
   


3. 
   

   And you can then use the /effect command to correctly target the players who matched, as they will have a "flashlight" label now:

   
   
   

   /effect @a[tag=flashlight] minecraft:night_vision
   

   
   

share|improve this answer

edited Jul 27 '16 at 20:16

answered Jul 26 '16 at 23:43

SkylinerwSkylinerw

11.7k11 gold badge1515 silver badges3232 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Do I have to use these as different commands? Activated rapidly, simultaneously? I'm so sorry I don't understand! XD! I'm so bad at commands! XD! Can you tell me how to set it up?
  
  – fsg2
  Jul 27 '16 at 14:38
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @fsg2 Sure, added an image example of a setup!
  
  – Skylinerw
  Jul 27 '16 at 20:17
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thx u sssooo mmuuucchh!!
  
  – fsg2
  Jul 30 '16 at 3:36
  

  
  
  
  

add a comment | 

/testfor will not be useful as it simply outputs if there was a match and will not allow you to target the one(s) who matched.

You will want to use /scoreboard instead, which can apply a label based on a target's NBT data either in the form of a score or "tag". Tag labels are much more efficient to use for simple boolean situations like this one.

---

The SelectedItem compound holds a copy of the player's currently-held item on the hotbar, minus the Slot tag. You can apply a label based on that, though it must be removed first in the event the player is no longer holding the item:

All command blocks are set to "Always Active" and "Unconditional".

1. 
   

   Remove the label from players first, so that if they are no longer holding the item they will not receive the effect anymore.

   
   
   

   /scoreboard players tag @a[tag=flashlight] remove flashlight
   

   
   


2. 
   

   Add a "flashlight" label to players that are holding a stick named "Flashlight".

   
   
   

   /scoreboard players tag @a add flashlight SelectedItem:id:"minecraft:stick",tag:display:Name:"Flashlight"
   

   
   


3. 
   

   And you can then use the /effect command to correctly target the players who matched, as they will have a "flashlight" label now:

   
   
   

   /effect @a[tag=flashlight] minecraft:night_vision
   

   
   

share|improve this answer

edited Jul 27 '16 at 20:16

answered Jul 26 '16 at 23:43

SkylinerwSkylinerw

11.7k11 gold badge1515 silver badges3232 bronze badges

share|improve this answer

edited Jul 27 '16 at 20:16

answered Jul 26 '16 at 23:43

SkylinerwSkylinerw

11.7k11 gold badge1515 silver badges3232 bronze badges

answered Jul 26 '16 at 23:43

SkylinerwSkylinerw

11.7k11 gold badge1515 silver badges3232 bronze badges

answered Jul 26 '16 at 23:43

SkylinerwSkylinerw

11.7k11 gold badge1515 silver badges3232 bronze badges