Diagonal and Changing Direction

Explosive_Chaos

I am making a game called Dodge. In this game, I want the player to be able to go diagonally. The problem is when I go in one direction and I try to go in a different direction, it doesn't work. Here is an example: I press the left and up arrow to go north west. I then press the right arrow to go right. Instead of going right it goes in north east. I know this isn't the best explanation. The easiest way for you to understand is for you try it yourself. Here is the link to the project page: http://scratch.mit.edu/projects/23879593/
Look inside and see for yourself. Thank you for any help

DanloVorje

I believe the issue is that the x and y velocities are only reset to 0 when no keys are pressed. This means that if the player holds down up and left and then lets go of left, the x velocity is still 6 and the sprite continues to move diagonally. My suggestion to fix this:

Split this piece of script:

if <<not <key [left arrow v] pressed?>> and <<not <key [down arrow v] pressed?>> and <<not <key [up arrow v] pressed?>> and <not <key [right arrow v] pressed?>>>>> then
set [x velocity v] to [0]
set [y velocity v] to [0]
end

into these two:

if <not <<key [left arrow v] pressed?> or <key [right arrow v] pressed?>>> then
    set [x velocity v] to [0]
end
if <not <<key [up arrow v] pressed?> or <key [down arrow v] pressed?>>> then
    set [y velocity v] to [0]
end

That way the script sets the velocity to 0 if none of the keys that directly affect that velocity (rather than no keys whatsoever) are pressed.

Hope this helps!

–Danlo

What I'm working on right now: Isle of Dolor

RPFluffy

Works just fine, what's the problem?

Nothing Is EVER 100%, that is just an assumption.

Some important links: Here and here or need help click Here. Eats followers, Loves helping people.
My “..” and “…” are not spelling mistakes, it means that they are ways of telling someone that I can continue more about it and that the sentence isn't ended the best way. I like putting new indents and lines so I can split up what I am talking about.

Some important links: Here and here or need help click Here. Eats followers, Loves helping people. Check this MMO out! Kiwi = Support WHAT THAT'S IMPOSSIBLE: Through the drop down ;)
if <> :: control cstart

else :: control
end

Explosive_Chaos

RPFluffy wrote:
Works just fine, what's the problem?

I have to stop pressing all of the arrows if I want to change direction. I can't just change direction by pressing a different arrow (which we all do, especially in a fast moving game).

DanloVorje wrote:
I believe the issue is that the x and y velocities are only reset to 0 when no keys are pressed. This means that if the player holds down up and left and then lets go of left, the x velocity is still 6 and the sprite continues to move diagonally. My suggestion to fix this:

Split this piece of script:
if <<not <key [left arrow v] pressed?>> and <<not <key [down arrow v] pressed?>> and <<not <key [up arrow v] pressed?>> and <not <key [right arrow v] pressed?>>>>> then
set [x velocity v] to [0]
set [y velocity v] to [0]
end
into these two:
if <not <<key [left arrow v] pressed?> or <key [right arrow v] pressed?>>> then
    set [x velocity v] to [0]
end
if <not <<key [up arrow v] pressed?> or <key [down arrow v] pressed?>>> then
    set [y velocity v] to [0]
end
That way the script sets the velocity to 0 if none of the keys that directly affect that velocity (rather than no keys whatsoever) are pressed.

Hope this helps!

–Danlo

Thank you very much, it works wonders! I would never have guessed that was the problem!

Discuss Scratch