3 questions about movement and collisions. *solved*

[DarksideX]

Hello.

I want to make a platformer and im having some trouble.

1. Is there a way to lock variable? For example i want the z variable to be constant 0 when i walk around. Something like vector3df(no change, no change, 0);

2. Is there a way to check if there is a wall in front of the player using the built in collision system? Like collision_check(x,y,z)

3. How do i adjust how far i can see? Because the scene is dissapearing within a certain distance.

Thank you.

-Ali

[nathanf534]

I can answer #3 for you.
camera->setFarValue(value);

[Dark_Kilauea]

#1. You'll need to set the z to 0 every frame I'm afraid.

#2. Should be possible, check out getCollisionPoint() and other methods of the collision system.

[DarksideX]

I can answer #3 for you.
camera->setFarValue(value);

Thanks.

#1. You'll need to set the z to 0 every frame I'm afraid.

#2. Should be possible, check out getCollisionPoint() and other methods of the collision system.

Il check out the second.
But how do i set the z to 0 every frame?

if i use vector3df(0,0,0) then i will be stuck on one spot? How can i set only ONE of the axes?

Thanks.

-Ali

[Ion Dune]

How about:

Code: Select all

core::vector3df Pos = node->getPosition();
Pos.Z = 0;
node->setPosition( Pos );

[Pakje]

just curious but what would happen if you use a const int?

[hybrid]

I guess you don't use the FPS camera (as this would be improper for a 2d platformer), so you should have some code to set the new position based on the user input. Simply fix z to 0 at this point You do this with 'pos.Z=0' assuming your new position is hold in variable pos.

[Acki]

beside of all other posts:

2. Is there a way to check if there is a wall in front of the player using the built in collision system? Like collision_check(x,y,z)

you can also do it like this:

Code: Select all

// lock the Y position
node->setPosition(node->getPosition() * vector3df(1.0, 0.0, 1.0));

3. How do i adjust how far i can see? Because the scene is dissapearing within a certain distance.

you can also make the nodes (scene) smaller...

[DarksideX]

Thanks alot guys.

I do not use fps camera. I simply set it to the players x and y-100, something like that.

First two questions solved now i just have to learn how to use getCollisionPoint(). Any hint or ideas what on how i use it? Like what parameters are needed and what they do? Or is there is there a page i can check on that?

Thanks-

-Ali

[Acki]

Or is there is there a page i can check on that?

I think the collision tutorial from the sdk is a good starting point and of course the API...

[Dark_Kilauea]

Your new best friend: http://irrlicht.sourceforge.net/docu/index.html

[DarksideX]

Dark_Kilauea you are my hero!

Thanks

-Ali