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Fix dropped item look (#6370)

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* Abort set_item when it does nothing

* Do not adjust dropped item size linearly

Instead use cube root because the item count is proportional to the volume, not to the length.

* Make the item rotate slower when it's bigger

Bigger items chafe more on the ground, so they can't rotate as fast as small ones

* Fix items flying in air
This commit is contained in:
you 2017-09-11 08:20:06 +02:00 committed by Loïc Blot
parent 5f489efc69
commit bb225672f9
1 changed files with 15 additions and 12 deletions
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27
builtin/game/item_entity.lua
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@ -37,32 +37,35 @@ core.register_entity(":__builtin:item", {
slippery_state = false, slippery_state = false,
age = 0, age = 0,
set_item = function(self, itemstring) set_item = function(self, item)
local stack = ItemStack(itemstring or self.itemstring) local stack = ItemStack(item or self.itemstring)
self.itemstring = stack:to_string() self.itemstring = stack:to_string()
if self.itemstring == "" then
-- item not yet known
return
end
-- Backwards compatibility: old clients use the texture -- Backwards compatibility: old clients use the texture
-- to get the type of the item -- to get the type of the item
local itemname = stack:get_name() local itemname = stack:is_known() and stack:get_name() or "unknown"
local max_count = stack:get_stack_max() local max_count = stack:get_stack_max()
local count = math.min(stack:get_count(), max_count) local count = math.min(stack:get_count(), max_count)
local size = 0.2 + 0.1 * (count / max_count) local size = 0.2 + 0.1 * (count / max_count) ^ (1 / 3)
local coll_height = size * 0.75
if not stack:is_known() then
itemname = "unknown"
end
self.object:set_properties({ self.object:set_properties({
is_visible = true, is_visible = true,
visual = "wielditem", visual = "wielditem",
textures = {itemname}, textures = {itemname},
visual_size = {x = size, y = size}, visual_size = {x = size, y = size},
collisionbox = {-size, -size, -size, size, size, size}, collisionbox = {-size, -coll_height, -size,
automatic_rotate = math.pi * 0.5, size, coll_height, size},
selectionbox = {-size, -size, -size, size, size, size},
automatic_rotate = math.pi * 0.5 * 0.2 / size,
wield_item = self.itemstring, wield_item = self.itemstring,
}) })
end, end,
get_staticdata = function(self) get_staticdata = function(self)
@ -154,7 +157,7 @@ core.register_entity(":__builtin:item", {
is_slippery = slippery ~= 0 is_slippery = slippery ~= 0
if is_slippery then if is_slippery then
is_physical = true is_physical = true
-- Horizontal deceleration -- Horizontal deceleration
local slip_factor = 4.0 / (slippery + 4) local slip_factor = 4.0 / (slippery + 4)
self.object:set_acceleration({ self.object:set_acceleration({