I'm going to make the shorthand for "player is pressing" to the term "Input"
When keydown = Up | play "left" animation
and keydown = left |
you may want to check this and if it doesn't work as intended you may want to add other conditions to the standard up down left right movements
for example
when keydown = up | play animation up
and keydown is not = to left |
you can achieve the "not equal to" by right clicking the event and selecting "invert"
Hopefully that helps