Physical properties

Property	Type	Description
mass	float	Mass of an object.
turn_mass	float	Turn mass (kg m^3) of an object.
air_resistance	float	Air resistance of an object.
elasticity	float	Elasticity of an object.
buoyancy	float	Buoyancy of an object.
uproot_limit	float	How much force is needed to uproot the object.
col_damage_multiplier	float	Force multiplier used when colliding with object.
col_damage_effect	string, see damage effects	Dictates which damage effect is applied to object on collision.
special_col_response	string, see collision responses	Dictates how object responds to being collided with.
avoid_camera	bool	Dictates whether camera passes throught the object.
cause_explosion	bool	Dictates whether objects exploded upon collision.
fx_type	string, see fx types	Dictates when particles will be created when colliding with object.
fx_offset	Vector3	Offset from center of mass where particles will be created upon collision.
fx_system	string, see effects	Effect that will be used upon collision.
smash_multiplier	float	Force multiplier when destroying object.
break_velocity	Vector3	Velocity and direction in which the object is destroyed.
break_velocity_randomness	float	Randomness of velocity and direction in which the object is destroyed, 0 means that object uses break_velocity without any randomness.
break_mode	string, see break modes	Dictates how object can be damaged.
sparks_on_impact	bool	Dictates whether object creates sparks upon impact.

Damage effects

Effect	Description
none	Object doesn’t change at all once it’s damaged.
change_model	Some of the objects change model on collision, those use this.
smash	Object is smashed.
change_smash	First change_model, afterwards smash on collision.
breakable	Object is breakable normally.
breakable_remove	object.dat says: ie. never regenerated after destroyed.

Collision responses

Response	Description
none	Object doesn’t respond in any special way.
lamppost	Objects acts like an lamp post.
small_box	-
big_box	-
fence_part	-
grenade	-
swingdoor	-
lockdoor	-
hanging	-
poolball	-

Break modes

Mode	Description
not_by_gun	Not breakable by gun.
by_gun	-
smashable	-

Fx types

Type	Description
none	No particles effect played on collision.
play_on_hit	Particles effect is played on collision, even if object isn’t destroyed.
play_on_destroyed	Particles effect is played only once object is destroyed.
play_on_hitdestroyed	Particles effect is played both when hit and destroyed.

See Also

Reference

• engineGetObjectGroupPhysicalProperty
• engineRestoreObjectGroupPhysicalProperties
• engineSetObjectGroupPhysicalProperty