on crackshot reload:
	if player's tool is not enchanted with Unbreaking:
		chance of 50%
		enchant player's tool with Unbreaking 5
		message "<pink>耐久力減少！"
		stop
	if player's tool is enchanted with Unbreaking 5:
		chance of 10%
		enchant player's tool with Unbreaking 4
		message "<pink>耐久力減少！"
		stop
	if player's tool is enchanted with Unbreaking 4:
		chance of 10%
		enchant player's tool with Unbreaking 3
		message "<pink>耐久力減少！"
		stop
	if player's tool is enchanted with Unbreaking 3:
		chance of 10%
		enchant player's tool with Unbreaking 2
		message "<pink>耐久力減少！"
		stop
	if player's tool is enchanted with Unbreaking 2:
		chance of 10%
		enchant player's tool with Unbreaking 1
		message "<pink>武器が壊れそうだ！"
		stop
	if player's tool is enchanted with Unbreaking 1:
		chance of 80%
		remove player's tool from the player's inventory
		message "<pink>武器が壊れた！"