A3D_IsModelColliding

Whether a model would touch anything at a position.

Stops at the first thing found, so it is cheaper than A3D_OverlapModel. The model counts as the shape it moves with, like in A3D_OverlapModel.

native bool:A3D_IsModelColliding(
    modelid,
    Float:x,
    Float:y,
    Float:z,
    Float:rx = 0.0,
    Float:ry = 0.0,
    Float:rz = 0.0,
    worldid = -1,
    A3D_COLLIDE:flags = A3D_COLLIDE_ALL
);

Parameters

Parameter	Description	Default
modelid	Model to place.
Float:x	Position on the X axis.
Float:y	Position on the Y axis.
Float:z	Position on the Z axis.
Float:rx	Rotation on the X axis.	0.0
Float:ry	Rotation on the Y axis.	0.0
Float:rz	Rotation on the Z axis.	0.0
worldid	Virtual world to look in, or -1 for every world.	-1
A3D_COLLIDE:flags	What may be touched.	A3D_COLLIDE_ALL

Returns

• true when it would touch something.
• false when the place is free, or the model has no collision and no shape in models.json.

Remarks

The model counts as its convex hull, as in A3D_OverlapModel. A model that rests on the ground touches it, so lift it a few centimetres or leave A3D_COLLIDE_MAP out of the flags.

The answer comes at the first thing found, which makes it the cheap test before placing something. A test costs about two microseconds.

Example

Refuses to place furniture inside other furniture or a vehicle.

stock bool:CanPlaceFurniture(modelid, Float:x, Float:y, Float:z, Float:angle, worldid) {
    return !A3D_IsModelColliding(modelid, x, y, z + 0.02, 0.0, 0.0, angle, worldid, A3D_COLLIDE_STATIC | A3D_COLLIDE_VEHICLES | A3D_COLLIDE_OBJECTS);
}

Related

• A3D_OverlapModel: Find everything a model would overlap at a position, such as before placing an object.
• A3D_FindRandomPoint: Find a random spot on the ground around a point where something fits, such as a spawn or a dropped item.
• A3D_CreateStaticObject: Create a physics object that never moves, shaped like the collision of a model.