CODEWITHSUNDEEP
c++functionclassobject
picklechips
picklechips

Reputation: 804

Access the object calling a member function, within the function

So i'm making a snowboarding game with SDL, and I have a function in the obstacle class that checks for collision. When the obstacle calls this function, if the player collided with it I went to set the collidedObject of the player class to the object it collided with. The code looks like this:

void Obstacle::checkCollision()
{
    // Check for collision
    // If player collided
    player.collidedObject = theObjectThatCalledThisFunction;
}

But i don't know how to get the object that called the function. Any help? I didn't really know what to search, and what i did try searching wasn't much help. Thanks.

Upvotes: 0

Views: 38

Answers (2)

Gasim
Gasim

Reputation: 7961

Just a thought but it would make more sense for you to checkCollision somewhere outside the obstacle class. Something like:

bool Obstacle::checkCollision(Player &player) {
    //collision test here
    return collisionResult;
}

PlayerSystem::collisionTest() {
    foreach(Obstacle : ObstaclesCloseBy) {
        if(obstacle->checkCollision(player)
            player.rollLikeABarrelDownTheSlope(); //or whatever    
    }    
}

Upvotes: 0

timrau
timrau

Reputation: 23058

this points to the object calling the member function. Hence, if player.collidedObject is of type Obstacle, then you could write

player.collidedObject = *this;

Upvotes: 1

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