CODEWITHSUNDEEP
c#unity-game-engine
rita sharon
rita sharon

Reputation: 59

changing the position of main camera according to its current position in unity3d

i am creating a 2d game where my camera position y axis has to be changed/decreased according to its current y position.

public void continuebut()
{
    campos = 0;
    campos = transform.position.y;

    if (campos <0)
    {

        campos += 4;//negative y position so the result will decrease the y position
        transform.Translate(0, campos, 0);
    }
    else 
    {

        campos -= 4;//positive y position so the result will decrease the y position
        transform.Translate(0, campos, 0);
    }

}

i expect the positive y position to be decreased but this code increase the y position of the camera instead of bringing down in y its going up. but it is not what i expected.i want the camera position y to go down when its a non negative number.

Upvotes: 0

Views: 134

Answers (2)

kefren
kefren

Reputation: 1102

First of all,

campos=0;

is pointless since it is immediately followed by:

campos=transform.position.x;

In fact, the compiler probably skips it completely and that line does not get in the final code.

About the rest of the code, you need to rethink what you are actually commanding to your app. You first take your y axis position. Let's suppose

transform.position.y=5.0f;

So, 

campos=5.0f;

Since

campos>0.0f

Your app does reduce campos

campos-=4;

So campos becomes 5-4=1.0f Now, you do

campos.Traslate(0,1.0f,0);

So you are basically moving your object UP. What you might want to do instead is 

transform.Translate(0,-4.0f,0);

However, consider that you probably would end up getting an oscillating object when it gets close to 0, oscillating every frame 4 units up and down.

Upvotes: 1

safokoi
safokoi

Reputation: 74

I may be off, but i think you're talking about this:

public void continuebut()
{
    campos = 0;
    campos = transform.position.y;


    if (campos >0)
    {
        // If camera position is positive
        // Decrease camera y position
        campos -= 4;//positive y position so the result will decrease the y position
        //Translate camera position
        transform.Translate(0, campos, 0);
    }
    else 
    {
        // If camera position if negative or zero
        // Increase camera y position
        campos += 4;//negative y position so the result will increase the y position
        //Translate camera position
        transform.Translate(0, campos, 0);
    }

}

Upvotes: 1

Related Questions