minecraft-commandsminecraft-java-edition
I want to execute a command to entities affected by instant health potions (Potion, Splash, Lingering).
The command execute as @e[nbt={ActiveEffects:[{Id:6b}]}] run <command> only works if the entity is affected through effect give.
Any idea how?
I assume, based on your previous question, that you want the number of affected armor stands stored on the player. For that there is no need for CommandStats or /tp. You simply need to ensure the commands are activated in the correct order for a /fill clock (see here for a tutorial that covers activation order via /fill).
Otherwise, the set of commands is essentially the same as those in your previous question, albeit adding instead of setting to mimic CommandStats.
Prerequisites:
Objective to state how many armor stands were near the player.
/scoreboard objectives add ASNum dummy
Clock commands:
The following must be run in numerical order on a clock.
Reset the player's ASNum score to a default of 0.
/scoreboard players set @a ASNum 0
Cause armor stands around the player to increase their "ASNum" score by 1. This causes the player's score to be equal to the number of armor stands around them, rather than always 1, to mimic CommandStats.
/execute @e[type=ArmorStand] ~ ~ ~ scoreboard players add @a[r=10] ASNum 1
Players with an ASNum score of 0 would be those not within 10 blocks of an armor stand. Players with a score of 1 or higher will have that many armor stands around them.
/say @a[score_ASNum=0] had no armor stands near them.
/say @a[score_ASNum_min=1] has at least 1 armor stand near them.
/say @a[score_ASNum_min=10] has at least 10 armor stands near them.
The c parameter is only maximum count and there in no minimum variant.
You will have to use multiple command blocks to count the number of targets and run commands if that number is reached. Since you're looking for an exact number, no more or less, you can rely on the SuccessCount tag of the command block.
Get the number of required entities as the SuccessCount value. Since you want only 2, the number of times the command will be processed has been limited to 3 to reduce server lag. This way the SuccessCount value will either be 0-1 for 0-1 entities, 2 for the desired amount, or 3 for 3+ entities.
/testfor @e[score_isB_min=1,score_isB=1,c=3]
Check the SuccessCount value of the repeating command block. Change the coordinates as needed. If the value is 2, this /testforblock command will be successful.
/testforblock ~1 ~ ~ minecraft:repeating_command_block -1 {SuccessCount:2}
Conditional. If the /testforblock command was successful, this would be the command to run as a result, which would be your /execute command.
/execute @e[name=Marker2] ~ ~ ~ /execute @e[score_isB_min=1,score_isB=1] ~ ~ ~ /execute @e[score_isP_min=1] ~ ~ ~ /say hi
Best Answer
"Instant health" is instant. You don't even have it for a single tick, it just applies its health effect and then disappears again. That the effect exists at all is pretty much an implementation detail.
So no, you cannot detect entities that are affected with it. The best you can do would be to detect a splash potion with that effect that is close to the entity and then disappears (like it's done for snowballs) and also detect using the potion directly using the scoreboard type for that (does not work for witches) and also being inside an AreaEffectCloud with that effect (which requires checking its size).
Alternatively, you could use a different potion, like "Unluck", replace all Instant health potions in inventories with Unluck potions (like here) and maybe also the effects of splash potion entities, then execute your commands on entities with that effect, of which the first two commands are giving an Instant health effect and removing the Unluck effect. You can then use a resource pack to replace the name, icon, etc. of Unluck potions to make them appear as Instant health potions. I don't know which of the two methods is easier.