How to get collision trigger in C++

[Vulcan]

With Lua I could use Script:Collision( entity, position, normal, speed) and place out a box-trigger.

Found a video illustrating this in Lua:

But how could I do that in C++?

I have looked in Entity.h for clues and I suspect it might be OnCollision(...) but not sure howto. Maybe this should be mentioned in the documentation with an example.

[gamecreator]

I'm not sure but this might help too

http://www.leadwerks.com/werkspace/page/documentation/_/command-reference/entity/entitycollisionhook-r64

[Vulcan]

Yeah looks like it could be some sort of callback. Your information lead me to Object::AddHock, so we will see how that come about.

[AggrorJorn]

You can load your map and store all objects like this:

Map::Load("Maps/mymap.map(), StoreWorldObjects());

 

and then in your storeWorldObjects() function you can look up triggers. (Note that CSG objects need an empty script or a mass for them to be picked up by the load hook.)

void StoreWorldObjects(Entity* entity, Object* extra)
{
if(entity->GetKeyValue("name") == "Trigger")
  {
    //Make a new trgger or something
    trigger = new MyTrigger();
  }
}

 

If you have made your own trigger class you can add a trigger hook in there:

void MyCollisionHook(Entity* entity0, Entity* entity1, float* position, float* normal, float speed)
{
//A collision was made with the trigger
}


MyTrigger::MyTrigger()
{
    entity->AddHook(Entity::CollisionHook, MyCollisionHook);
}

[Vulcan]

You can load your map and store all objects like this:

Map::Load("Maps/mymap.map(), StoreWorldObjects());

 

and then in your storeWorldObjects() function you can look up triggers. (Note that CSG objects need an empty script or a mass for them to be picked up by the load hook.)

void StoreWorldObjects(Entity* entity, Object* extra)
{
if(entity->GetKeyValue("name") == "Trigger")
{
//Make a new trgger or something
trigger = new MyTrigger();
}
}

 

If you have made your own trigger class you can add a trigger hook in there:

void MyCollisionHook(Entity* entity0, Entity* entity1, float* position, float* normal, float speed)
{
//A collision was made with the trigger
}


MyTrigger::MyTrigger()
{
entity->AddHook(Entity::CollisionHook, MyCollisionHook);
}

Okay that is working but now I got another problem when hidding the triggerbox in LE (Appearance->Hidden). Can't the box be invisible?

[AggrorJorn]

Apply the invisible material (materials//effects).

[Vulcan]

Nice