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Help modders deal with object invalidation (#14769)

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* Skip invalid objects in raycasts
* Add `ObjectRef:is_valid` method
* Add object inside radius / area iterators which skip invalid objects
* Update docs to clarify object invalidation and how to deal with it

---------

Co-authored-by: sfan5 <sfan5@live.de>
This commit is contained in:
Lars Müller 2024-07-01 20:50:38 +02:00 • committed by GitHub
parent d5444e1172
commit 8ed55b3aff
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6 changed files with 134 additions and 12 deletions
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26
builtin/game/misc.lua
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@ -272,3 +272,29 @@ function core.get_globals_to_transfer()
}
return all
end
do
local function valid_object_iterator(objects)
local i = 0
local function next_valid_object()
i = i + 1
local obj = objects[i]
if obj == nil then
return
end
if obj:is_valid() then
return obj
end
return next_valid_object()
end
return next_valid_object
end
function core.objects_inside_radius(center, radius)
return valid_object_iterator(core.get_objects_inside_radius(center, radius))
end
function core.objects_in_area(min_pos, max_pos)
return valid_object_iterator(core.get_objects_in_area(min_pos, max_pos))
end
end