[ImACow]

Most of the threads found on AM are about fixing this issue.
However I need to create it ;)

I want to spawn a "prop_physics_multiplayer" that fall trough the world, collides with nothing even no brushes.

tried with Solid types, collision groups.

nothing seems to work so far it keeps colliding with map brushes


Research:

SetEntityMoveType -> MOVETYPE_VPHYSICS is needed to make the prop fall

[ImACow]

Found it.

(added for anyone else looking for this)

SetEntProp(entity, Prop_Send, "m_usSolidFlags", 12); 
SetEntProp(entity, Prop_Data, "m_nSolidType", 6); 
SetEntProp(entity, Prop_Send, "m_CollisionGroup", 1);

m_usSolidFlags

 m_usSolidFlags = FSOLID_NOT_SOLID + FSOLID_TRIGGER

enum SolidFlags_t
{
	FSOLID_CUSTOMRAYTEST		= 0x0001,	// Ignore solid type + always call into the entity for ray tests
	FSOLID_CUSTOMBOXTEST		= 0x0002,	// Ignore solid type + always call into the entity for swept box tests
	FSOLID_NOT_SOLID			= 0x0004,	// Are we currently not solid?
	FSOLID_TRIGGER				= 0x0008,	// This is something may be collideable but fires touch functions
											// even when it's not collideable (when the FSOLID_NOT_SOLID flag is set)
	FSOLID_NOT_STANDABLE		= 0x0010,	// You can't stand on this
	FSOLID_VOLUME_CONTENTS		= 0x0020,	// Contains volumetric contents (like water)
	FSOLID_FORCE_WORLD_ALIGNED	= 0x0040,	// Forces the collision rep to be world-aligned even if it's SOLID_BSP or SOLID_VPHYSICS
	FSOLID_USE_TRIGGER_BOUNDS	= 0x0080,	// Uses a special trigger bounds separate from the normal OBB
	FSOLID_ROOT_PARENT_ALIGNED	= 0x0100,	// Collisions are defined in root parent's local coordinate space
	FSOLID_TRIGGER_TOUCH_DEBRIS	= 0x0200,	// This trigger will touch debris objects

	FSOLID_MAX_BITS	= 10
};

m_nSolidType

 m_nSolidType= SOLID_VPHYSICS

enum SolidType_t
{
	SOLID_NONE			= 0,	// no solid model
	SOLID_BSP			= 1,	// a BSP tree
	SOLID_BBOX			= 2,	// an AABB
	SOLID_OBB			= 3,	// an OBB (not implemented yet)
	SOLID_OBB_YAW		= 4,	// an OBB, constrained so that it can only yaw
	SOLID_CUSTOM		= 5,	// Always call into the entity for tests
	SOLID_VPHYSICS		= 6,	// solid vphysics object, get vcollide from the model and collide with that
	SOLID_LAST,
};

m_CollisionGroup

 m_CollisionGroup = COLLISION_GROUP_DEBRIS

enum Collision_Group_t
{
	COLLISION_GROUP_NONE  = 0,
	COLLISION_GROUP_DEBRIS,			// Collides with nothing but world and static stuff
	COLLISION_GROUP_DEBRIS_TRIGGER, // Same as debris, but hits triggers
	COLLISION_GROUP_INTERACTIVE_DEBRIS,	// Collides with everything except other interactive debris or debris
	COLLISION_GROUP_INTERACTIVE,	// Collides with everything except interactive debris or debris
	COLLISION_GROUP_PLAYER,
	COLLISION_GROUP_BREAKABLE_GLASS,
	COLLISION_GROUP_VEHICLE,
	COLLISION_GROUP_PLAYER_MOVEMENT,  // For HL2, same as Collision_Group_Player, for
										// TF2, this filters out other players and CBaseObjects
	COLLISION_GROUP_NPC,			// Generic NPC group
	COLLISION_GROUP_IN_VEHICLE,		// for any entity inside a vehicle
	COLLISION_GROUP_WEAPON,			// for any weapons that need collision detection
	COLLISION_GROUP_VEHICLE_CLIP,	// vehicle clip brush to restrict vehicle movement
	COLLISION_GROUP_PROJECTILE,		// Projectiles!
	COLLISION_GROUP_DOOR_BLOCKER,	// Blocks entities not permitted to get near moving doors
	COLLISION_GROUP_PASSABLE_DOOR,	// Doors that the player shouldn't collide with
	COLLISION_GROUP_DISSOLVING,		// Things that are dissolving are in this group
	COLLISION_GROUP_PUSHAWAY,		// Nonsolid on client and server, pushaway in player code

	COLLISION_GROUP_NPC_ACTOR,		// Used so NPCs in scripts ignore the player.
	COLLISION_GROUP_NPC_SCRIPTED,	// USed for NPCs in scripts that should not collide with each other

	LAST_SHARED_COLLISION_GROUP
};

[Peace-Maker]

m_nSolidType valueset is different from m_usSolidFlags'. Checkout smlib.

PHP Code:

enum SolidType_t
{
    SOLID_NONE            = 0,    // no solid model
    SOLID_BSP            = 1,    // a BSP tree
    SOLID_BBOX            = 2,    // an AABB
    SOLID_OBB            = 3,    // an OBB (not implemented yet)
    SOLID_OBB_YAW        = 4,    // an OBB, constrained so that it can only yaw
    SOLID_CUSTOM        = 5,    // Always call into the entity for tests
    SOLID_VPHYSICS        = 6,    // solid vphysics object, get vcollide from the model and collide with that
    SOLID_LAST,
}; 


so you're setting m_nSolidType to SOLID_VPHYSICS.

[ImACow]

Now I cannot re-solidify them, haha
I guessed just setting all the flags back to normal state would solve it, but not at all.

//entity natural spawn flags
[SPAWN] Entity_GetSpawnFlags(256)
[SPAWN] Entity_SetSolidFlags(0)
[SPAWN] Entity_GetSolidType(6)
[SPAWN] Entity_GetCollisionGroup(17)

//change the prop to non solid
[POST] Entity_GetSpawnFlags(256)
[POST] Entity_SetSolidFlags(12)
[POST] Entity_GetSolidType(6)
[POST] Entity_GetCollisionGroup(1)

//re-solidify it
[POST] Entity_GetSpawnFlags(256)
[POST] Entity_GetSolidFlags(0)
[POST] Entity_GetSolidType(6)
[POST] Entity_GetCollisionGroup(17)

It doesn't generate +use output & players can walk through them. :/

[ImACow]

The solution for this was:

PHP Code:

    SetEntProp(ent, Prop_Send, "m_usSolidFlags", FSOLID_NOT_SOLID|FSOLID_TRIGGER); 
    SetEntProp(ent, Prop_Data, "m_nSolidType", SOLID_VPHYSICS); 
    SetEntProp(ent, Prop_Send, "m_CollisionGroup", COLLISION_GROUP_DEBRIS); 


[artvin_boy]

Thanks alot for posting what worked even when you figured it out yourself, a savior!