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Added item sliding, renamed groups setting to 'slip'

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Renamed groups 'slippery' to 'slip' to avoid name collision with clones
and to match override_physics_slip.
This commit is contained in:
cmdskp
2015-12-31 16:14:27 +00:00
parent 54ede741a9
commit f3e1237a27
6 changed files with 48 additions and 40 deletions
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48
builtin/game/item_entity.lua
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@@ -163,7 +163,7 @@ core.register_entity(":__builtin:item", {
local node = core.get_node_or_nil(p)
local in_unloaded = (node == nil)
if in_unloaded then
-- Don't infinetly fall into unloaded map
-- Don't infinitely fall into unloaded map
self.object:setvelocity({x = 0, y = 0, z = 0})
self.object:setacceleration({x = 0, y = 0, z = 0})
self.physical_state = false
@@ -174,30 +174,38 @@ core.register_entity(":__builtin:item", {
-- If node is not registered or node is walkably solid and resting on nodebox
local v = self.object:getvelocity()
if not core.registered_nodes[nn] or core.registered_nodes[nn].walkable and v.y == 0 then
-- Must check (above) first, if sitting on node to prevent flipping physical_state continuously!
if self.physical_state then
local own_stack = ItemStack(self.object:get_luaentity().itemstring)
-- Merge with close entities of the same item
for _, object in ipairs(core.get_objects_inside_radius(p, 0.8)) do
local obj = object:get_luaentity()
if obj and obj.name == "__builtin:item"
and obj.physical_state == false then
if self:try_merge_with(own_stack, object, obj) then
return
local total_velocity = math.abs(v.x) + math.abs(v.z)
local slip = core.get_item_group(nn, "slip")
if slip == 0 or total_velocity < .5 then
local own_stack = ItemStack(self.object:get_luaentity().itemstring)
-- Merge with close entities of the same item
for _, object in ipairs(core.get_objects_inside_radius(p, 0.8)) do
local obj = object:get_luaentity()
if obj and obj.name == "__builtin:item"
and obj.physical_state == false then
if self:try_merge_with(own_stack, object, obj) then
return
end
end
end
self.object:setvelocity({x = 0, y = 0, z = 0})
self.object:setacceleration({x = 0, y = 0, z = 0})
self.physical_state = false
self.object:set_properties({physical = false})
elseif slip ~= 0 then
self.object:setacceleration({x = v.x * -120 / slip, y = -10, z = v.z * -120 / slip})
end
self.object:setvelocity({x = 0, y = 0, z = 0})
self.object:setacceleration({x = 0, y = 0, z = 0})
self.physical_state = false
self.object:set_properties({physical = false})
end
else
if not self.physical_state then
self.object:setvelocity({x = 0, y = 0, z = 0})
self.object:setacceleration({x = 0, y = -10, z = 0})
self.physical_state = true
self.object:set_properties({physical = true})
end
elseif not self.physical_state then
-- Re-activate & apply gravity if not resting on a walkable nodebox
self.object:setvelocity({x = 0, y = 0, z = 0})
self.object:setacceleration({x = 0, y = -10, z = 0})
self.physical_state = true
self.object:set_properties({physical = true})
end
end,