Minecraft Forums

The "requirements" list specifies a Disjunctive Normal Form structure to accompany criteria. It essentially allows boolean logic to determine when the advancement is granted based on the accompanying criteria. The list contains more lists, which in turn contains strings that equal the names of the criteria. If this list is not specified, then all criteria must be fulfilled. You would use this if you want to use an OR operation, for example.

Given the following advancement:

{

    "criteria": {

        "trigger_1": {

            "trigger": "minecraft:entity_hurt_player"

        },

        "trigger_2": {

            "trigger": "minecraft:used_ender_eye"

        }

    },

    "requirements": [

        ["trigger_1", "trigger_2"]

    ]

}

Both "trigger_1" and "trigger_2" criteria must be fulfilled before the advancement can be granted. Since that would be the case without "requirements", it is not necessary to use it here. Using logical operators, this can be viewed as:

"trigger_1" && "trigger_2"

Modifying the requirements list slightly, which separates "trigger_2" into its own list:

{

    "criteria": {

        "trigger_1": {

            "trigger": "minecraft:entity_hurt_player"

        },

        "trigger_2": {

            "trigger": "minecraft:used_ender_eye"

        }

    },

    "requirements": [

        ["trigger_1"],

        ["trigger_2"]

    ]

}

You have this part backwards Skyliner.

The line...

"requirements": [ ["trigger_1"], ["trigger_2"] ]

...requires both triggers to be active.

While...

"requirements": [ ["trigger_1", "trigger_2"] ]

...requires either trigger to be active.

I tested this myself with my own advancement which I will paste in the spoiler below. Sorry for formatting, not used to the way these forums work.

{
    "display": {
        "title": "Savanna",
        "description": "You're in the Savanna",
        "icon": {
            "item": "minecraft:sapling",
            "data": 4
        },
        "annouce_to_chat": "false",
        "show_toast": "false"
    },
    "parent": "titaniummod:biome/root_biomes",    
    "criteria": {
        "trigger_1": {
            "trigger": "minecraft:location",
        "conditions": {
            "biome": "minecraft:savanna"
            }
        },
        "trigger_2": {
            "trigger": "minecraft:location",
        "conditions": {
            "biome": "minecraft:savanna_rock"
            }
        },
        "trigger_3": {
            "trigger": "minecraft:location",
        "conditions": {
            "biome": "minecraft:mutated_savanna"
            }
        },        
        "trigger_4": {
            "trigger": "minecraft:location",
        "conditions": {
            "biome": "minecraft:mutated_savanna_rock"
            }
        }
    },
    "requirements": [ ["trigger_1", "trigger_2", "trigger_3", "trigger_4"] ],
    "rewards": {
        "function": "*modname*:biome/savannadetect"
    }
} 

This is because the info in that post is outdated in general

Last updated: 17w18a

There's been some changes since then, including removal of _commands_ reward and addition of _function_ reward, as well as the change of requirements from disjunctive normal form (OR of ANDs) to conjunctive normal form (AND of ORs)

Is there any way to have the requirement of the player killing multiple entities, rather than just 1? Like an achievement for killing 10 zombies.

Quote from TheRevivedShadow»

Is there any way to have the requirement of the player killing multiple entities, rather than just 1? Like an achievement for killing 10 zombies.

Quote from Cavinator1»

You could set up a scoreboard objective with the objective for killing zombies, like so:
/scoreboard objectives add ZombieKills stat.killEntity.Zombie
Then have a function running on the gameLoopFunction gamerule. In this function this command should run:
/advancement grant @a[score_ZombieKills_min=10] only <kill 10 zombies!!>
So the function that runs every tick will grant the advancement to a player once they reach 10 zombie kills.

Rather than use the gameLoop, create the advancement that has a function that checks if the score and resets it if the kill count is less than 10. Then have the criteria be player_killed_entiity with type zombie. That way it only tests if a zombie is killed, rather than every tick.

what excatly am i doing rong

Hi! I'm currently trying my best to create an Advancement that tracks that the player is out of bounds of a certain square region, so basically it'd give them the advancement if they were beyond 1,000 on the x-axis and z-axis. However, I only seem to be able to make it register past the positive coordinates and not the negative. Can I get any help possibly?

Here is my advancement file:

{
    "display": {
        "icon": {
            "item": "minecraft:sapling"
        },
        "title": "Sapling",
        "description": "You left the comfort of spawn.",
        "show_toast": true,
        "announce_to_chat": true,
        "hidden": false
    },
	"parent": "swan:root",
    "criteria": {
        "southeast": {
            "trigger": "minecraft:location",
			"conditions": {
				"position": {
					"x": {
						"min": 10
					},
					"z": {
						"min": 10
					}
				}
			}
		},
		"northwest": {
            "trigger": "minecraft:location",
			"conditions": {
				"position": {
					"x": {
						"max": -10
					},
					"z": {
						"max": -10
					}
				}
			}
		}
	},
	"requirements": [["southeast"], ["northwest"]]
}

If anyone can help me out it'd be heavily appreciated, since I'm new to all this. Thanks!

Quote from FVbico»

Missing commas after each criteria.

thank you

wait where should i add the commas

Error: Parse error on line 21:
...} } } } "StorylineOne2": {
------------------^
Expecting 'EOF', '}', ',', ']', got 'STRING'

im confused

its not complaning any more but its not giving me the advancement when these cryterias are met