minetrest-game-rpgtest/mods/potions/init.lua

potions = {}
function potions.register_potion(name, def)
	minetest.register_craftitem(name, {
	description = def.description,
	inventory_image = def.img,
 
	on_drop = function(itemstack, dropper, pos)
		if not dropper or not dropper:is_player() then
			return
		end
		return def.on_use(itemstack, dropper)
	end,

	on_use = function(itemstack, user, pointed_thing)
		if not user or not user:is_player() then
			return
		end
		return def.on_use(itemstack, user)
	end,
})
end

potions.register_potion("potions:healing", {
	description = "Potion of Healing",
	img = "potions_red.png",
	on_use = function(itemstack, user)
		if not user or not user:is_player() then
			return
		end
		cmsg.push_message_player(user, "[hp] + 10")
		user:set_hp(user:get_hp()+10)
		itemstack:take_item()
		return itemstack
	end
})

potions.register_potion("potions:jumping", {
	description = "Potion of Jumping",
	img = "potions_blue.png",
	on_use = function(itemstack, user)
		if not user or not user:is_player() then
			return
		end
		user:set_physics_override({
			gravity = 0.1,
		})
		cmsg.push_message_player(user, "[effect] + jump")

		minetest.after(10.0, function(pl)
			if not pl or not pl:is_player() then
				return
			end
			pl:set_physics_override({
				gravity = 1,	
			})
			cmsg.push_message_player(pl, "[effect] - jump")
		end, user)
		itemstack:take_item()
		return itemstack
	end
})

potions.register_potion("potions:running", {
	description = "Potion of Running",
	img = "potions_yellow.png",
	on_use = function(itemstack, user)
		if not user or not user:is_player() then
			return
		end
		user:set_physics_override({
			speed = 3,
		})
		cmsg.push_message_player(user, "[effect] + speed")

		minetest.after(10.0, function(pl)
			if not pl or not pl:is_player() then
				return
			end
			pl:set_physics_override({
				speed = 1,	
			})
			cmsg.push_message_player(pl, "[effect] - speed")
		end, user)
		itemstack:take_item()
		return itemstack
	end
})

minetest.register_craftitem("potions:strange", {
	description = "strange Potion",
	inventory_image = "potions_black.png",
})

minetest.register_craftitem("potions:glass", {
	description = "Glass",
	inventory_image = "potions_glass.png",
})

minetest.register_craftitem("potions:upgrading", {
	description = "Potion of Upgrading",
	inventory_image = "potions_green.png",
})

-- crafting

minetest.register_craft({
	type = "shapeless",
	output = "potions:strange",
	recipe = {"potions:glass", "juice:cactus", "juice:cactus", "juice:water"},
	replacements = {
		{"juice:cactus", "juice:glass"},
		{"juice:cactus", "juice:glass"},
		{"juice:water", "juice:glass"}
	}
})

minetest.register_craft({
	type = "shapeless",
	output = "potions:running",
	recipe = {"juice:water_sugar", "juice:water_sugar", "juice:water_sugar", "potions:glass"},
	replacements = {
		{"juice:water_sugar", "juice:glass"},
		{"juice:water_sugar", "juice:glass"},
		{"juice:water_sugar", "juice:glass"}
	}
})

minetest.register_craft({
	type = "shapeless",
	output = "potions:jumping",
	recipe = {"juice:water_sugar", "juice:water_sugar", "juice:water", "potions:glass"},
	replacements = {
		{"juice:water_sugar", "juice:glass"},
		{"juice:water_sugar", "juice:glass"},
		{"juice:water", "juice:glass"}
	}
})

minetest.register_craft({
	type = "shapeless",
	output = "potions:upgrading",
	recipe = {"potions:strange", "default:stone_item", "farming:cactus", "default:sand"},
})