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Command Reference: Advanced Systems

Reference-style breakdowns for advanced command block systems. Expand each entry for setup commands, notes, and usage context.

Scoreboards

Scoreboard Counter

Counts ticks or actions using a dummy objective.

Setup Commands

/scoreboard objectives add timer dummy
/scoreboard players add @a timer 1

Notes

Use repeat or chain blocks to increment every tick.
Display with /scoreboard objectives setdisplay.

Logic Chains

Conditional Chain

Runs a chain command only when a prior check succeeds.

Example

Impulse: /testfor @p[tag=key]
Chain (Conditional): /tp @p 0 100 0

Command Block Notes

Set the chain block to conditional (orange).
Place it directly after the impulse block.

Detection

Proximity Detector

Detects entities within range and triggers a response.

Example

/execute as @a at @s if entity @e[type=armor_stand,distance=..3] run say Nearby

Notes

Swap armor_stand for another marker entity.
Use a repeating command block for continuous checks.