Minecraft - Line of sight detection without raycasting (Eye Sensor)

Line of sight detection without raycasting. No datapacks required this time. Inspired by https://www.youtube.com/watch?v=DztEGmf4hrE World download https://www.planetminecraft.com/project/line-of-sight-detection/ All my links: https://heledron.com/links/ Commands # create scoreboard objectives, call it "lineOfSight.x" and "lineOfSight.y" # we will use these to store and calculate entity rotations /scoreboard objectives add lineOfSight.x dummy /scoreboard objectives add lineOfSight.y dummy # summon armour stand, call it "lineOfSight.sensor" /summon minecraft:armor_stand ~ ~1.9 ~ {Tags:["lineOfSight.sensor"], Marker: 1b, Invisible: 1b} # LOOP: make sensor face away from the player /execute as @e[tag=lineOfSight.sensor] at @s facing entity @p eyes run tp @s ~ ~ ~ ~180 ~ # LOOP: store player and sensor rotation in scoreboards /execute as @e[tag=lineOfSight.sensor] store result score @s lineOfSight.x run data get entity @s Rotation[0] /execute as @e[tag=lineOfSight.sensor] store result score @s lineOfSight.y run data get entity @s Rotation[1] /execute as @p store result score @s lineOfSight.x run data get entity @s Rotation[0] /execute as @p store result score @s lineOfSight.y run data get entity @s Rotation[1] # LOOP: add/subtract player rotation from sensor rotation to find the relative rotation /scoreboard players operation @e[tag=lineOfSight.sensor] lineOfSight.x -= @p lineOfSight.x /scoreboard players operation @e[tag=lineOfSight.sensor] lineOfSight.y += @p lineOfSight.y # LOOP: if the sensor's relative rotation is 0, then the player is looking at it. # you might want to leave some margin so the rotations don't have to match exactly. /execute as @e[tag=lineOfSight.sensor] if score @s lineOfSight.x matches -1..1 if score @s lineOfSight.y matches -1..1 run tellraw @a "Hello World!" Music C418 - Blind Spots (Minecraft Volume Beta) https://c418.org/ Build inspirations "Minecraft: 30+ Laboratory Build Hacks!" by BBlocks https://www.youtube.com/watch?v=AUfQmAQ7Olg "Abandoned Lab" by StayCooling https://www.reddit.com/r/Minecraft/comments/dai29y/forgot_to_post_the_changes_i_did_to_the_abandoned/ #minecraft #commandblock