Mannequin Pumpkin / Melon Farmer

1. [impulse] /scoreboard objectives add timer dummy

2. [repeat] /execute as @e[tag=melonFarmer] at @s rotated ~ 0 if block ^ ^ ^0.5 air run tp @s ^ ^ ^.1

3. [chain] /execute as @e[tag=melonFarmer] at @s rotated ~ 0 if block ^ ^-1 ^ minecraft:diamond_block run tp @s ^1 ^ ^ ~180 40

4. [chain] /execute as @e[tag=melonFarmer] at @s rotated ~ 0 unless block ^ ^ ^0.5 air run scoreboard players add @s timer 1

5. [chain] /execute as @e[tag=melonFarmer] at @s if score @s timer matches 1.. run swing @s

6. [chain] /execute as @e[tag=melonFarmer] at @s if score @s timer matches 30.. rotated ~ 0 run setblock ^ ^ ^1 air destroy

7. [chain] /execute as @e[tag=melonFarmer] at @s if score @s timer matches 30.. rotated ~ 0 run scoreboard players reset @s timer

8. [chain] /execute as @e[tag=melonFarmer] at @s if entity @e[type=item,distance=..2] run tp @e[type=item,distance=..2] ~ ~2 ~

9. [chain] /execute as @e[tag=melonFarmer] at @s rotated ~ 0 if block ^ ^ ^1.5 hopper run tp @e[type=item,distance=..2] ^ ^1 ^1.5