Convert flying bobber to vl_projectile, modify mcl_throwing.register_throwable_object() to check for _vl_projectile field

mods/ITEMS/mcl_fishing/init.lua

@@ -312,7 +312,7 @@ bobber_ENTITY.on_step = bobber_on_step
 
 minetest.register_entity("mcl_fishing:bobber_entity", bobber_ENTITY)
 
-local flying_bobber_ENTITY={
+vl_projectile.register("mcl_fishing:flying_bobber_entity", {
 	physical = false,
 	timer=0,
 	textures = {"mcl_fishing_bobber.png"}, --FIXME: Replace with correct texture.
@@ -323,35 +323,35 @@ local flying_bobber_ENTITY={
 	get_staticdata = mcl_throwing.get_staticdata,
 	on_activate = mcl_throwing.on_activate,
 
+	_vl_projectile = {
+		behaviors = {
+			vl_projectile.collides_with_solids,
+		},
+		collides_with = { "group:liquid" },
+		on_collide_with_solid = function(self, pos, node)
+			if not self._last_pos then return end
+
+			local last_pos = self._last_pos
+			local player = self._owner
+
+			self._remove = true
+			self.object:remove()
+
+			local def = minetest.registered_nodes[node.name]
+			if not def then return end
+
+			if def.walkable or def.liquidtype == "flowing" or def.liquidtype == "source" then
+				local ent = minetest.add_entity(last_pos, "mcl_fishing:bobber_entity"):get_luaentity()
+				ent.player = player
+				ent.child = true
+			end
+		end
+	},
+
 	_lastpos={},
 	_thrower = nil,
 	objtype="fishing",
-}
-
--- Movement function of flying bobber
-local function flying_bobber_on_step(self, dtime)
-	self.timer=self.timer+dtime
-	local pos = self.object:get_pos()
-	local node = minetest.get_node(pos)
-	local def = minetest.registered_nodes[node.name]
-	--local player = minetest.get_player_by_name(self._thrower)
-
-	-- Destroy when hitting a solid node
-	if self._lastpos.x~=nil then
-		if (def and (def.walkable or def.liquidtype == "flowing" or def.liquidtype == "source")) or not def then
-			local ent = minetest.add_entity(self._lastpos, "mcl_fishing:bobber_entity"):get_luaentity()
-			ent.player = self._thrower
-			ent.child = true
-			self.object:remove()
-			return
-		end
-	end
-	self._lastpos={x=pos.x, y=pos.y, z=pos.z} -- Set lastpos-->Node will be added at last pos outside the node
-end
-
-flying_bobber_ENTITY.on_step = flying_bobber_on_step
-
-minetest.register_entity("mcl_fishing:flying_bobber_entity", flying_bobber_ENTITY)
+})
 
 mcl_throwing.register_throwable_object("mcl_fishing:flying_bobber", "mcl_fishing:flying_bobber_entity", 5)
 

mods/ITEMS/mcl_throwing/egg.lua

@@ -17,7 +17,6 @@ minetest.register_craftitem("mcl_throwing:egg", {
 	_on_dispense = mcl_throwing.dispense_function,
 	groups = { craftitem = 1 },
 })
-mcl_throwing.register_throwable_object("mcl_throwing:egg", "mcl_throwing:egg_entity", 22)
 
 minetest.register_entity("mcl_throwing:egg_entity",{
 	physical = false,
@@ -60,4 +59,5 @@ minetest.register_entity("mcl_throwing:egg_entity",{
 		},
 	},
 })
+mcl_throwing.register_throwable_object("mcl_throwing:egg", "mcl_throwing:egg_entity", 22)
 

mods/ITEMS/mcl_throwing/ender_pearl.lua

@@ -20,7 +20,6 @@ minetest.register_craftitem("mcl_throwing:ender_pearl", {
 	on_use = mcl_throwing.get_player_throw_function("mcl_throwing:ender_pearl_entity"),
 	groups = { transport = 1 },
 })
-mcl_throwing.register_throwable_object("mcl_throwing:ender_pearl", "mcl_throwing:ender_pearl_entity", 22)
 
 -- Ender pearl entity
 vl_projectile.register("mcl_throwing:ender_pearl_entity",{
@@ -125,3 +124,5 @@ vl_projectile.register("mcl_throwing:ender_pearl_entity",{
 		end
 	},
 })
+mcl_throwing.register_throwable_object("mcl_throwing:ender_pearl", "mcl_throwing:ender_pearl_entity", 22)
+

mods/ITEMS/mcl_throwing/init.lua

@@ -14,6 +14,8 @@ local velocities = {}
 function mcl_throwing.register_throwable_object(name, entity, velocity)
 	entity_mapping[name] = entity
 	velocities[name] = velocity
+	assert(minetest.registered_entities[entity], entity.." not registered")
+	assert(minetest.registered_entities[entity]._vl_projectile)
 end
 
 function mcl_throwing.throw(throw_item, pos, dir, velocity, thrower)

mods/ITEMS/mcl_throwing/snowball.lua

@@ -16,7 +16,6 @@ minetest.register_craftitem("mcl_throwing:snowball", {
 	on_use = mcl_throwing.get_player_throw_function("mcl_throwing:snowball_entity"),
 	_on_dispense = mcl_throwing.dispense_function,
 })
-mcl_throwing.register_throwable_object("mcl_throwing:snowball", "mcl_throwing:snowball_entity", 22)
 
 -- The snowball entity
 local function snowball_particles(pos, vel)
@@ -72,4 +71,5 @@ vl_projectile.register("mcl_throwing:snowball_entity", {
 		damage_groups = { snowball_vulnerable = 3 },
 	},
 })
+mcl_throwing.register_throwable_object("mcl_throwing:snowball", "mcl_throwing:snowball_entity", 22)