Inital commit

datapacks/spectator-night-vision/data/minecraft/tags/function/load.json

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+{
+	"values": [
+		"spectator_night_vision:load",
+		"spectator_night_vision:tick"
+	]
+}

datapacks/spectator-night-vision/data/spectator_night_vision/function/gamemode_change.mcfunction

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+# Desc: Sets player into normal state
+#
+# Called by: spectator_night_vision:tick
+
+effect clear @s night_vision
+scoreboard players set @s snv_toggle -1
+tellraw @s {"text":"Night Vision toggled off due to gamemode change.","color":"red"}
+tag @s remove has_night_vision
+tag @s add switched_gamemode

datapacks/spectator-night-vision/data/spectator_night_vision/function/load.mcfunction

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+# Desc: Initializes all scores within the datapack
+#
+# Called by: main:tick
+
+scoreboard objectives add night_vision trigger "toggle §enight vision§r for §espectator§r"
+
+# Toggle
+scoreboard objectives add snv_toggle dummy
+scoreboard players set snv_toggle snv_toggle -1

datapacks/spectator-night-vision/data/spectator_night_vision/function/tick.mcfunction

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+# Desc: All commands here run every tick
+#
+# Called by: main:tick
+
+schedule function spectator_night_vision:tick 1t
+
+# Initialise players
+# Scores → 0
+scoreboard players add @a night_vision 0
+scoreboard players add @a snv_toggle 0
+# Set toggle to -1
+scoreboard players set @a[scores={snv_toggle=0}] snv_toggle -1
+# Enable trigger
+scoreboard players enable @a night_vision
+
+# Handle gamemode change
+execute as @a[gamemode=!spectator,tag=has_night_vision] at @s run function spectator_night_vision:gamemode_change
+
+# Track player initiating toggle
+execute as @a[scores={night_vision=1..}] at @s run tag @s add snv_toggle
+execute as @a[scores={night_vision=..-1}] at @s run tag @s add snv_toggle
+
+# Toggle
+execute as @a[tag=snv_toggle,gamemode=spectator] at @s[tag=!switched_gamemode] run function spectator_night_vision:toggle
+execute as @a[tag=snv_toggle,gamemode=!spectator] at @s[tag=!switched_gamemode] run tellraw @s {"text": "You may only use that in spectator mode!", "color":"red"}
+
+# Reset
+scoreboard players set @a[tag=snv_toggle] night_vision 0
+tag @a[tag=snv_toggle] remove snv_toggle
+tag @a[tag=switched_gamemode] remove switched_gamemode

datapacks/spectator-night-vision/data/spectator_night_vision/function/toggle.mcfunction

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+# Desc: Toggles night vision on/off based on toggle value
+#
+# Called by: spectator_night_vision:tick
+
+# Multiply by -1 to invert
+scoreboard players operation @s snv_toggle *= snv_toggle snv_toggle
+
+# Tag
+tag @s[scores={snv_toggle=1}] add has_night_vision
+tag @s[scores={snv_toggle=-1}] remove has_night_vision
+
+# Apply night vision
+effect give @s[scores={snv_toggle=1}] night_vision 1000000 99 true
+effect clear @s[scores={snv_toggle=-1}] night_vision
+
+# Tellraw
+tellraw @s[scores={snv_toggle=1}] {"text":"Night Vision toggled on.","color":"yellow"}
+tellraw @s[scores={snv_toggle=-1}] {"text":"Night Vision toggled off.","color":"yellow"}

datapacks/spectator-night-vision/data/spectator_night_vision/function/uninstall.mcfunction

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+# Desc: Removes all scores within the datapack
+#
+# Called by: main:uninstall_message
+
+schedule clear spectator_night_vision:tick
+
+scoreboard objectives remove night_vision
+scoreboard objectives remove snv_toggle

datapacks/spectator-night-vision/data/vanillatweaks/advancement/root.json

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+{
+	"display": {
+		"icon": {
+			"id": "minecraft:player_head",
+			"components": {
+				"minecraft:profile": {
+					"properties": [
+						{
+							"name": "textures",
+							"value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMTg1YzMzNWM1MjVjZGFkY2Q4MmU4MDA4MzU1N2M2OTYzMGRmYjlhMWVkZjU5OTc0YzdmNjU4ZGI1MWEwYTFkOSJ9fX0="
+						}
+					]
+				}
+			}
+		},
+		"title": "Vanilla Tweaks",
+		"frame": "challenge",
+		"description": [
+			"",
+			{
+				"text": "All loaded Vanilla Tweaks data packs\n",
+				"color": "gold"
+			},
+			{
+				"text": "vanillatweaks.net",
+				"color": "yellow"
+			}
+		],
+		"background": "minecraft:textures/block/black_concrete.png",
+		"show_toast": false,
+		"announce_to_chat": false
+	},
+	"criteria": {
+		"tick": {
+			"trigger": "minecraft:tick"
+		}
+	}
+}

datapacks/spectator-night-vision/data/vanillatweaks/advancement/spectator_night_vision.json

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+{
+	"display": {
+		"icon": {
+			"id": "minecraft:potion",
+			"components": {
+				"minecraft:potion_contents": "minecraft:night_vision"
+			}
+		},
+		"title": "Spectator Night Vision",
+		"description": [
+			"",
+			{
+				"text": "Easily toggle night vision when in spectator.\n",
+				"color": "gold"
+			},
+			{
+				"text": "Enter",
+				"color": "green"
+			},
+			{
+				"text": " ",
+				"color": "gold"
+			},
+			{
+				"text": "/trigger night_vision",
+				"color": "yellow"
+			}
+		],
+		"show_toast": false,
+		"announce_to_chat": false
+	},
+	"parent": "vanillatweaks:root",
+	"criteria": {
+		"tick": {
+			"trigger": "minecraft:tick"
+		}
+	}
+}

datapacks/spectator-night-vision/data/vanillatweaks/tags/function/uninstall.json

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+{
+	"values": [
+		"spectator_night_vision:uninstall"
+	]
+}

datapacks/spectator-night-vision/overlay_71/data/vanillatweaks/advancement/root.json

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+{
+	"display": {
+		"icon": {
+			"id": "minecraft:player_head",
+			"components": {
+				"minecraft:profile": {
+					"properties": [
+						{
+							"name": "textures",
+							"value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMTg1YzMzNWM1MjVjZGFkY2Q4MmU4MDA4MzU1N2M2OTYzMGRmYjlhMWVkZjU5OTc0YzdmNjU4ZGI1MWEwYTFkOSJ9fX0="
+						}
+					]
+				}
+			}
+		},
+		"title": "Vanilla Tweaks",
+		"frame": "challenge",
+		"description": [
+			"",
+			{
+				"text": "All loaded Vanilla Tweaks data packs\n",
+				"color": "gold"
+			},
+			{
+				"text": "vanillatweaks.net",
+				"color": "yellow"
+			}
+		],
+		"background": "minecraft:block/black_concrete",
+		"show_toast": false,
+		"announce_to_chat": false
+	},
+	"criteria": {
+		"tick": {
+			"trigger": "minecraft:tick"
+		}
+	}
+}

datapacks/spectator-night-vision/pack.mcmeta

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+{
+	"pack": {
+		"pack_format": 48,
+		"supported_formats": {
+			"min_inclusive": 48,
+			"max_inclusive": 80
+		},
+		"description": [
+			{
+				"text": "Spectator Night Vision",
+				"color": "gold"
+			},
+			{
+				"text": "\nvanillatweaks.net",
+				"color": "yellow"
+			}
+		]
+	},
+	"overlays": {
+		"entries": [
+			{
+				"formats": {
+					"min_inclusive": 71,
+					"max_inclusive": 2147483647
+				},
+				"directory": "overlay_71"
+			}
+		]
+	}
+}