Pointers shall be set to nullptr, not 0, according to the
coding standards. By implication they shall be compared with
nullptr, not 0, too. Fix this code to match that.
This fixes overridden items keeping their old groups in the group to
items mapping even after their groups have been changed in lua.
It also prevents a more widespread issue where overriding an item
will add its content ID *twice* to the mapping, resulting in odd
behaviour in features such as ABMs.
This fix consists of two parts:
- Clear the list of stored entities. This has no side-effects.
- Catch the case where active entities exist and print a message.
Clearing the active entitiy list has side-effects that should
be handled. (those entities are known to the environment and
to clients).
As avoiding those side-effects is more complex, and as this
problem is not expected to occur (with PR #4847 merged), there
is no real incentive to implement this ATM.
This issue was a contributing factor to bug #4217. With the other
contributing factor removed (PR #4847), this commit makes sure this
factor does not go unnoticed if it ever happens again.
The commit 526a9e4b66abaf83eb6b1aaa3e93375acd87b830 breaks
the non-GLES2 setups because the code that is intended to
handle that is behind "elseif()" which is interpreted as
"elseif(false)" and thus the code never gets executed. Fix
that by changing the offending line to else().
Additionally, to avoid breaking the server only build
(which shall not have a dependency on GL/GLU/GLES at all),
enclose the entire block code in if(BUILD_CLIENT).
* Fix some issues with minetest.clear_craft
- Fix memory leak
- Fix crafts with an output count not being cleared when clearing by
input.
- Fix recipe list being reversed when clearing by input.
* Add CraftInput::empty()
Avoid an unsuitable spawn position (which if outside mapgen limits can
cause a crash) if the main 0-3999 loop reaches its end. Fallback to a
spawn at 0,0,0.
Check the mapgen-returned 'spawn_level' value for being outside limits.
When 'air_count' reaches 2, move back down 1 to spawn in the lower
empty node.
If the spawn position is disallowed by 'objectpos_over_limit()', 'break'
from loop instead of 'continue' because positions above are probably
also over limit.
Reset 'air_count' to 0 if an obstruction is found, to make 'air_count'
consecutive empty nodes.
Allow spawn in 'airlike' drawtype nodes such as mod-added vacuum,
alien atmospheres, fog etc.
Add clarifying comments and improve codestyle.
This fixes an issue where when the engine looked up groups (for example,
in ABM node names), NodeDefManager's m_group_to_items would contain nodes
with a group value of zero, resulting in nodes with flammable = 0 being
burned by a fire mod with a group:flammable checking ABM.
It brings consistency to the behaviour described in the api
documentation, where zero and nil groups should be the same.
Previously, this wrongly returned ground level (a position containing
a solid node) as spawn level.
Return ground level + 2 (+ 2 to spawn above biome 'dust' nodes).
Improve codestyle and make more consistent with generateTerrain().
Due to commit ec3142a , UnitSAO's getArmorGroups() did not match
ServerActiveObject's, notably resulting in the lua get_armor_groups() call
returning nothing.
Document new meaning of immortal=1 for players
Disable breathing if player is immortal
Hide builtin statbars if player immortal (delayed)
Co-authored-by: ClobberXD <ClobberXD@gmail.com>
This prevents set_properties() calls that have nothing to do with hp_max or breath_max overriding the saved hp before another mod has the chance to set a player's intended hp_max (such as in on_joinplayer).
What happened:
1) Object data is received. Client begins to read the data
2) Client initializes all its children (gob_cmd_update_infant)
3) Children try to attach to parent (yet not added)
4) Parent initializes, is added to the environment
And somewhere in between, Irrlicht wrecks up the attachments due to the missing matrix node.
The solution here is to:
1) Use the same structure as ServerActiveObject
2) Attach all children after the parent is really initialized
