sprite_index not working gamemaker studio 2 (GML)

Question

I have a small script that changes the sprite index when I press a certain key.

 if (key_right)
    {
    sprite_index = playerRightSpr;//<-------------
    image_speed = 1;                           //|
    }                                          //|
    if (key_left)                              //|
    {                                          //|
    sprite_index = playerLeftSpr;              //|
    image_speed = 1;                           //|
    }                                          //|
    if (key_left) && (key_right)               //|
    {                                          //|
    sprite_index = playerSpr;                  //|
    image_speed = 0;                           //|
    }                                          //|
    if (!key_right or key_left) //add this and this, doesn't work
    {                           //but it does when I remove this code.
    sprite_index = playerSpr;
    image_speed = 0;
    }

Is there another way to say when standing still make sprite playerSpr because the way i'm trying seems to cause conflict. Thanks in advance Bhodi

Answer 1

If your entity moves you can just use the speed variable to make this. For example :

• if your entity has a positive speed (go right) you will use PlayerRightSpr

• if your entity has a negative speed (go left) you will use PlayerLeftSpr

• And if speed is 0 you use PlayerSpr

(Instead of using two different sprites you can use image_xscale too)

image_xscale = 1; (normal sprite)

image_xscale = -1; (flip on x axis : mirror)

And finally instead of this :

if (!key_right or key_left)

Use this :

if (!key_right || !key_left)

Or this :

if (key_right == 0 || key_left == 0)

But you are right it's not the correct way to do this

I hope this way is good