How can I make a player swims in libgdx

Question

I'm creating a Java game similar to Mario Bros. I'm using Tiled Map Editor to create the map, inside the map there is water. I want to make my character swims inside water, for instance, changing the animation and make it floats. But, my character just sinks. I don't know how to implement these things inside my program, although, I succeed with collision.

Can anyone help me please?

Answer 1

You could have a boolean inWater; for your player and every update it checks if he is colliding with a water tile. Then in your update / tick method where you calculate your logic you just base your logic on the inWater variable.

For example:

if(inWater) {
    gravity = -0.5f;
} else if(!inWater) {
    gravity = -0.9f;
}

Same goes for your animations. When applying the current animation check the inWater variable and if it is true, set the moveLeft and moveRight animations to swimRight and swimLeft etc.

And to get the tile, just do what you do for collision, but instead apply it to check for water.

This is a really simple way of doing it, but googling a little won't hurt you.