[Chrissy]

I have a system that is supposed to prevent players from entering a trigger's bounds. Do this with:

float vVec[3];
GetEntPropVector(iClient, Prop_Data, "m_vecAbsVelocity", vVec);
NormalizeVector(vVec, vVec);
ScaleVector(vVec, 300.0);
NegateVector(vVec);
							
TeleportEntity(iClient, NULL_VECTOR, NULL_VECTOR, vVec);

However, I've found a flaw so that if a player enters from an acute angles and hits a ceiling they're pushed into the trigger. My thinking was that I need to set the x,z axis differently so that if the angle is acute they are always going to be pushed horizontally backwards 300 units.

I made a little picture to help visualise:


A thousand thanks.

[Balimbanana]

Could potentially just ignore Z velocity all together:

float vVec[3];
GetEntPropVector(iClient, Prop_Data, "m_vecAbsVelocity", vVec);
vVec[2] = 0.0;
NormalizeVector(vVec, vVec);
ScaleVector(vVec, 300.0);
NegateVector(vVec);
							
TeleportEntity(iClient, NULL_VECTOR, NULL_VECTOR, vVec);

Or check if vVec[2] is negative (falling).

Or if you want the full negative pushback, maybe set a cap on negative vVec[2]

[Chrissy]

Originally Posted by Balimbanana Could potentially just ignore Z velocity all together: float vVec[3]; GetEntPropVector(iClient, Prop_Data, "m_vecAbsVelocity", vVec); vVec[2] = 0.0; NormalizeVector(vVec, vVec); ScaleVector(vVec, 300.0); NegateVector(vVec); TeleportEntity(iClient, NULL_VECTOR, NULL_VECTOR, vVec); Or check if vVec[2] is negative (falling). Or if you want the full negative pushback, maybe set a cap on negative vVec[2]

Thanks for the reply. I tried these but they Im sorry to say they don't resolve the issue. For some reason I can figure out, if the players jumps into it (falling) and is then pushing on the W key, they seems to squeeze past the bounds.

Perhaps someone has another method of preventing a player from entering a bounds that doesn't involve "repelling" the player.

Thanks

[Balimbanana]

If you are looking to make it solid, you could potentially just use a brush:

int brush = CreateEntityByName("func_brush");
if (brush != -1)
{
	DispatchKeyValue(brush,"rendermode","10");
	//Toggleable
	DispatchKeyValue(brush,"solidity","0");
	DispatchKeyValue(brush,"solidbsp","1");
	DispatchKeyValue(brush,"startdisabled","0");
	//If you have the m_ModelName of the volume you wish to block, then you can set it here and skip the SetEntityModel and vMins and vMaxs.
	//DispatchKeyValue(brush,"model",ModelName);
	//If it is just slightly too small, then you will need to get the min maxs and ScaleVector(1.05,vMins) and vMaxs and set it below.
	float targetpos[3];
	float targetangs[3];
	//Here you could set a static position, or get the position of the volume you want to block.
	TeleportEntity(brush,targetpos,targetangs,NULL_VECTOR);
	DispatchSpawn(brush);
	ActivateEntity(brush);
	//The model in particular doesn't really matter, it is just to set the bounds configuration.
	//It would be good to note, while the bounds of this model doesn't affect the player clip, it will affect NPCs and some props by the bounds of the specified model.
	if (!IsModelPrecached("models/somemodel.mdl")) PrecacheModel("models/somemodel.mdl",true);
	SetEntityModel(brush,"models/somemodel.mdl");
	int effect = GetEntProp(brush,Prop_Send,"m_fEffects");
	effect |= 32;
	SetEntProp(brush,Prop_Send,"m_fEffects",effect);
	float vMins[3];
	float vMaxs[3];
	//You can either set a static value here,
	//or get the min max of the volume you are trying to block.
	//There is also a potential that if you are blocking entering a map based trigger volume, then you can get its model and set it then skip the minmaxs.
	if (HasEntProp(brush,Prop_Send,"m_vecMins")) SetEntPropVector(brush,Prop_Send,"m_vecMins",vMins);
	if (HasEntProp(brush,Prop_Send,"m_vecMaxs")) SetEntPropVector(brush,Prop_Send,"m_vecMaxs",vMaxs);
}