add stationary ghast datapack

src/stationary_happy_ghast/data/minecraft/tags/function/load.json

@@ -0,0 +1,5 @@
+{
+	"values": [
+		"stationary_happy_ghast:load"
+	]
+}

src/stationary_happy_ghast/data/minecraft/tags/function/tick.json

@@ -0,0 +1,5 @@
+{
+	"values": [
+		"stationary_happy_ghast:tick"
+	]
+}

src/stationary_happy_ghast/data/stationary_happy_ghast/advancement/stationary_happy_ghast.json

@@ -0,0 +1,32 @@
+{
+    "display": {
+        "icon": {
+            "id": "minecraft:dried_ghast"
+        },
+        "title": "Stationary Happy Ghasts",
+        "description": [
+            "",
+            {
+                "text": "Makes happy ghasts not wander when dismounted. Also disables their ability to follow snowballs.\n",
+                "color": "gold"
+            },
+            {
+                "text": "/trigger stationary_happy_ghast while near a happy ghast to toggle this behavior.\n",
+                "color": "yellow"
+            }
+        ],
+        "show_toast": false,
+        "announce_to_chat": false
+    },
+    "parent": "minecraft:root",
+	"criteria": {
+		"tick": {
+			"trigger": "minecraft:tick"
+		}
+	},
+	"requirements": [
+		[
+			"tick"
+		]
+	]
+}

src/stationary_happy_ghast/data/stationary_happy_ghast/function/load.mcfunction

@@ -0,0 +1,2 @@
+scoreboard objectives add ghastflymode trigger
+scoreboard objectives add ghast_parking_state dummy

src/stationary_happy_ghast/data/stationary_happy_ghast/function/park.mcfunction

@@ -0,0 +1 @@
+scoreboard players set @s ghast_parking_state 1

src/stationary_happy_ghast/data/stationary_happy_ghast/function/parkedghast.mcfunction

@@ -0,0 +1,3 @@
+execute as @s[nbt={still_timeout:10}] as @s[nbt={NoAI:1b}] run data modify entity @s NoAI set value 0b
+
+execute unless entity @s[nbt={still_timeout:10}] unless entity @s[nbt={NoAI:1b}] run data modify entity @s NoAI set value 1b

src/stationary_happy_ghast/data/stationary_happy_ghast/function/tick.mcfunction

@@ -0,0 +1,5 @@
+execute as @a[scores={ghastflymode=1..}] at @s run function stationary_happy_ghast:trigger
+scoreboard players enable @a ghastflymode
+
+#parked
+execute as @e[type=happy_ghast,scores={ghast_parking_state=1}] at @s run function stationary_happy_ghast:parkedghast

src/stationary_happy_ghast/data/stationary_happy_ghast/function/trigger.mcfunction

@@ -0,0 +1,17 @@
+execute as @e[type=happy_ghast,distance=..10,sort=nearest,limit=1] if score @s ghast_parking_state matches 1 run tag @s add _was1
+execute as @e[type=happy_ghast,distance=..10,sort=nearest,limit=1] unless score @s ghast_parking_state matches 1 run tag @s add _was0
+
+execute as @e[type=happy_ghast,tag=_was1,limit=1,sort=nearest] run function stationary_happy_ghast:unpark
+execute as @e[type=happy_ghast,tag=_was0,limit=1,sort=nearest] run function stationary_happy_ghast:park
+
+execute if entity @e[type=happy_ghast,distance=..10,sort=nearest,limit=1,tag=_was1] run tellraw @a[scores={ghastflymode=1..}] {"text":"Your ghast is now wandering. It will move freely when you dismount.","color":"yellow"}
+execute if entity @e[type=happy_ghast,distance=..10,sort=nearest,limit=1,tag=_was0] run tellraw @a[scores={ghastflymode=1..}] {"text":"Your ghast is now stationary. It will no longer wander when you dismount.","color":"yellow"}
+
+tag @e[type=happy_ghast,tag=_was1] remove _was1
+tag @e[type=happy_ghast,tag=_was0] remove _was0
+
+execute unless entity @e[type=happy_ghast,distance=..10] run tellraw @s {"text":"You need to be close with your ghast to use this command.","color":"red"}
+
+scoreboard players reset @s ghastflymode
+
+

src/stationary_happy_ghast/data/stationary_happy_ghast/function/unpark.mcfunction

@@ -0,0 +1,3 @@
+scoreboard players reset @s ghast_parking_state
+
+data modify entity @s NoAI set value 0b

src/stationary_happy_ghast/pack.mcmeta

@@ -0,0 +1,9 @@
+{
+	"pack": {
+		"pack_format": 48,
+		"supported_formats": {"min_inclusive": 48, "max_inclusive": 88},
+		"min_format": 48,
+		"max_format": 88,
+		"description": [{"text":"Prevents your happy ghast from flying away from you!","color":"gold"}]
+	}
+}