Return early from on_step (#33)

pull/32/head
Jude Melton-Houghton 9 months ago committed by GitHub
parent 3b31b6f9c0
commit 1349ff8dd8
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GPG Key ID: 4AEE18F83AFDEB23
  1. 78
      item_transport.lua

@ -311,8 +311,6 @@ luaentity.register_entity("pipeworks:tubed_item", {
self:set_pos(pos)
end
local stack = ItemStack(self.itemstring)
local velocity = self:get_velocity()
local moved = false
@ -329,9 +327,15 @@ luaentity.register_entity("pipeworks:tubed_item", {
moved = true
end
if not moved then
return
end
local stack = ItemStack(self.itemstring)
pipeworks.load_position(self.start_pos)
local node = minetest.get_node(self.start_pos)
if moved and minetest.get_item_group(node.name, "tubedevice_receiver") == 1 then
if minetest.get_item_group(node.name, "tubedevice_receiver") == 1 then
local leftover
if minetest.registered_nodes[node.name].tube and minetest.registered_nodes[node.name].tube.insert_object then
leftover = minetest.registered_nodes[node.name].tube.insert_object(self.start_pos, node, stack, vel, self.owner)
@ -349,45 +353,43 @@ luaentity.register_entity("pipeworks:tubed_item", {
return
end
if moved then
local found_next, new_velocity, multimode = go_next(self.start_pos, velocity, stack, self.owner) -- todo: color
local rev_vel = vector.multiply(velocity, -1)
local rev_dir = vector.direction(self.start_pos,vector.add(self.start_pos,rev_vel))
local rev_node = minetest.get_node(vector.round(vector.add(self.start_pos,rev_dir)))
local tube_present = minetest.get_item_group(rev_node.name,"tubedevice") == 1
if not found_next then
if pipeworks.drop_on_routing_fail or not tube_present or
minetest.get_item_group(rev_node.name,"tube") ~= 1 then
-- Using add_item instead of item_drop since this makes pipeworks backward
-- compatible with Minetest 0.4.13.
-- Using item_drop here makes Minetest 0.4.13 crash.
local dropped_item = minetest.add_item(self.start_pos, stack)
if dropped_item then
dropped_item:set_velocity(vector.multiply(velocity, 5))
self:remove()
end
return
else
velocity = vector.multiply(velocity, -1)
self:set_pos(vector.subtract(self.start_pos, vector.multiply(vel, moved_by - 1)))
self:set_velocity(velocity)
local found_next, new_velocity, multimode = go_next(self.start_pos, velocity, stack, self.owner) -- todo: color
local rev_vel = vector.multiply(velocity, -1)
local rev_dir = vector.direction(self.start_pos,vector.add(self.start_pos,rev_vel))
local rev_node = minetest.get_node(vector.round(vector.add(self.start_pos,rev_dir)))
local tube_present = minetest.get_item_group(rev_node.name,"tubedevice") == 1
if not found_next then
if pipeworks.drop_on_routing_fail or not tube_present or
minetest.get_item_group(rev_node.name,"tube") ~= 1 then
-- Using add_item instead of item_drop since this makes pipeworks backward
-- compatible with Minetest 0.4.13.
-- Using item_drop here makes Minetest 0.4.13 crash.
local dropped_item = minetest.add_item(self.start_pos, stack)
if dropped_item then
dropped_item:set_velocity(vector.multiply(velocity, 5))
self:remove()
end
elseif is_multimode(multimode) then
-- create new stacks according to returned data.
local s = self.start_pos
for _, split in ipairs(multimode) do
pipeworks.tube_inject_item(s, s, split.velocity, split.itemstack, self.owner)
end
-- remove ourself now the splits are sent
self:remove()
return
else
velocity = vector.multiply(velocity, -1)
self:set_pos(vector.subtract(self.start_pos, vector.multiply(vel, moved_by - 1)))
self:set_velocity(velocity)
end
if new_velocity and not vector.equals(velocity, new_velocity) then
local nvelr = math.abs(new_velocity.x + new_velocity.y + new_velocity.z)
self:set_pos(vector.add(self.start_pos, vector.multiply(new_velocity, (moved_by - 1) / nvelr)))
self:set_velocity(new_velocity)
elseif is_multimode(multimode) then
-- create new stacks according to returned data.
local s = self.start_pos
for _, split in ipairs(multimode) do
pipeworks.tube_inject_item(s, s, split.velocity, split.itemstack, self.owner)
end
-- remove ourself now the splits are sent
self:remove()
return
end
if new_velocity and not vector.equals(velocity, new_velocity) then
local nvelr = math.abs(new_velocity.x + new_velocity.y + new_velocity.z)
self:set_pos(vector.add(self.start_pos, vector.multiply(new_velocity, (moved_by - 1) / nvelr)))
self:set_velocity(new_velocity)
end
end
})

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