Minecraft – How to detect what mob hit a player 1.12

minecraft-commandsminecraft-java-edition

I'm making horror map. And i got some problems.

I need that when a player takes damage from a specific mob, a block is placed.
This block will start another system.
For example: if player have damage from zombie, iron block placing in some place. If player have damage from skeleton, redstone block placing in some place.
I hope you help me. And sorry for my bad english.

Best Answer

This can be done with advancements. You can have an advancement trigger of type entity_hurt_player (archive) and in its damage.source_entity.type condition check for the entity type, like skeleton. The example given in the wiki even does this:

{
  "criteria": {
    "example": {
      "trigger": "minecraft:entity_hurt_player",
      "conditions": {
        "damage": {
          "source_entity": {
            "type": "skeleton",
            "direct_entity": {
              "type": "arrow"
            }
          },
          "taken": {
            "min": 4.0
          }
        }
      }
    }
  }
}

Then you just need to use a function as reward that places a block, it will automatically be executed as the player and at the position of the player.

The Commands

Set up a fast clock (but not as fast as a fill clock)
One command block does /clear @p iron_ingot 0 1 (clears 1 iron ingot from the nearest player. You can choose which player, but it must be exactly one. Also, you must use the same selector throughout all these commands.)
Run a comparator from that command block to another command block running this command: /scoreboard players add @p ironIngots 1 (Increases the player's ironIngots score by 1. Make sure you create ironIngots first!)
Create another command block that does whatever you want. In the case of giving them a diamond, you would do this: /give @p[score_ironIngots_min=10] diamond. Note the target selector; it gives the player the diamond only if their ironIngots score is 10 or greater.
The last thing you want to do is take the ironIngots score away so they don't keep getting items. Just run /scoreboard players remove @p[score_ironIngots_min=10] ironIngots 10. This removes 10 iron ingots from the player if they have an ironIngots score of 10 or greater. Any player who matches this will have received a diamond in the previous step.

How to Set Them Up

The commands listed above must run in order. It is actually very simple to put them in order. Just open the debug menu and look at the stylish new crosshair. Align the command blocks along either the green or red line so that one of those lines points down the first to the last command block.

Notes

You don't have to press a button to use this, you just have to be the nearest player. You can change the command to the nearest player within 10 blocks, nearest player on a team, etc.
The commands will take a short amount of time to finish, but for 10 iron ingots, it will only take half a second. It's one tick (1/20 of a second) per item taken away.
It will take away iron ingots even if you don't have ten. However, you can submit one, then later submit five, then submit four more later, and it will still give you the diamond. You can also submit 14 at a time and the extra 4 will be saved for later.

Minecraft – 10 Points Per Mob Hit

If you don't care about what entity they hit, you could do this:

Add a scoreboard called "Attack" using stat.damageDealt using:

/scoreboard objectives add Attack stat.damageDealt

And then creating this chain of command blocks:

     Repeating: /scoreboard players add @a[score_Attack_min=1] Points 10
     Chain: /scoreboard players set @a[score_Attack_min=1] Attack 0

This will basically add 10 to the "Points" variable every time the player deals a single point of damage. Keep in mind that stat.damageDealt doesn't count up by ones, but by the amount of damage actually dealt (ie. 16), so if they somehow do damage faster than 20x per second, it won't count every single hit.

Additionally, if you only want it to go up when the player attacks a zombie, you could use the score of: stat.killEntity.Zombie

Best Answer

Related Solutions

Minecraft – Using /testfor in minecraft to check if a player has a certain item in their inventory

The Commands

How to Set Them Up

Notes

Minecraft – 10 Points Per Mob Hit

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