Dissolve weapons

[satoon101]

Currently only ragdolls are removed/dissolved. Find a way to dissolve the player's weapons on death.

[KirillMysnik]

Too bad I didn't notice this earlier. Back in the day, when I just got around to the memory stuff, my first found signature was CBaseAnimating::Dissolve.

I know that signatures are hard to maintain etc, but still, it's one of the options to solve this! The fact that the target function contains a library-wide unique string ragdoll_dissolved simplifies this approach.

So. I've cleaned up the code and made sure that the signature is up-to-date. This is only for CS:S, though.

dissolver.py

# =============================================================================
# >> IMPORTS
# =============================================================================
# Source.Python
from core import GAME_NAME
from engines.server import global_vars
from memory import make_object, NULL
from memory.manager import TypeManager
from paths import PLUGIN_DATA_PATH

# Dissolver
from .info import info


# =============================================================================
# >> TYPES
# =============================================================================
DISSOLVER_DATA_PATH = PLUGIN_DATA_PATH / info.name
TYPE_FILE_PATH = DISSOLVER_DATA_PATH / GAME_NAME / 'CBaseAnimating.ini'

if TYPE_FILE_PATH.isfile():
    manager = TypeManager()
    DissolvableEntity = manager.create_type_from_file(
        'CBaseAnimating', TYPE_FILE_PATH)

else:

    from warnings import warn

    warn("Entity dissolving is not supported by this game")
    manager = DissolvableEntity = None


# =============================================================================
# >> FUNCTIONS
# =============================================================================
def dissolve(entity, effect_type=0):
    if DissolvableEntity is None:
        return

    dissolvable_entity = make_object(DissolvableEntity, entity.pointer)
    dissolvable_entity.dissolve(
        NULL, global_vars.current_time, False, effect_type, entity.origin, 2)


# =============================================================================
# >> TESTS
# =============================================================================
from events import Event
from filters.entities import EntityIter


@Event('player_jump')
def on_player_jump(game_event):
    for i, entity in enumerate(EntityIter('weapon_ak47')):
        dissolve(entity, i % 4)

data/plugins/dissolver/cstrike/CBaseAnimating.ini

binary = server

[function]

    # bool CBaseAnimating::Dissolve(CBaseEntity *, const char *pMaterialName, float flStartTime, bool bNPCOnly, int nDissolveType, Vector vDissolverOrigin, int iMagnitude )
    [[dissolve]]
        identifier_linux = _ZN14CBaseAnimating8DissolveEPKcfbi6Vectori
        identifier_windows = 55 8B EC 80 7D 10 00 56 57
        convention = THISCALL
        arguments = POINTER, FLOAT, BOOL, INT, POINTER, INT
        return_type = BOOL

[KirillMysnik]

[satoon101]

Well, this issue was more to find a way to know which weapons to dissolve (though it was clearly poorly worded). I can still use the same env_entity_dissolver entity to dissolve weapons as I do ragdolls.