[Tutorial] Character control on screen (Input.KeyDown)

[The_$hit]

What if i wanted to attach a picture and move that around what would I do?

[Tony]

You have your position variables X/Y, just draw your picture there instead of Draw.Box/Oval/whatever

[ssr]

btw I think

code:

KEY_UP_ARROW

and

code:

KEY_DOWN_ARROW

only works on Turing 4.0.5
what about

code:

KEY_ENTER

samething?
8)

[Bacchus]

KEY_UP_ARROW and KEY_DOWN_ARROW both work in 4.0.4, i used them b4, 4.0.5 however recognizes them as keys and turns it black to not get them confused with vars

[ssr]

Bacchus wrote:

KEY_UP_ARROW and KEY_DOWN_ARROW both work in 4.0.4, i used them b4, 4.0.5 however recognizes them as keys and turns it black to not get them confused with vars

so if I make a program using KEY_UP_ARROW, it will still work in Turing 4.04? 8)

[Bacchus]

yes, at least they did for me b4 i got 4.0.5, .5 just turns the font black (in .4 it stays blue) that way it doesnt look like a var

[[Gandalf]]

Where can I find the list of all the key names?

How would I do Space Bar without using ORD_SPACE? KEY_SPACE doesn't work, and I tried a bunch of different combinations...

[Bacchus]

code:

var chars:array char of boolean loop    cls    Input.KeyDown (chars)    if chars (KEY_UP_ARROW) then       put  "You pressed the Up Arrow!"    elsif chars(' ') then       put "You pressed the Space Bar!"    elsif chars('a') then       put "You pressed a!"    else       put "You can use the accual key name etc " " or "a" and quote them with          aposterphies ('), if the key doesnt have an accual character it needs a          special variable or watever its called ex: up arrow doesnt have a          character so you use KEY_UP_ARROW"    end if end loop

[Cervantes]

Open the turing reference (F10). Expand Turing Language. Expand PRedefined modules. Select Keyboard.
Also, Expand Turing Language. Select Keystroke codes. scroll down.

[[Gandalf]]

Thanks a lot! Anyone know why they didn't make a KEY_SPACE - was it because it was just not neccessary?

Now I can finally use the spacebar for shooting , thanks again.

[Bacchus]

i would guess cause its not necissary, it has a character so

[[Gandalf]]

Alright, here's another question which has been bothering me... I've see this done a lot, but I can't explain it.

Is there a reason why you have a seperate if statement for each key pressed? Why not just do elsif? That way you can also have an 'else' if you need it...

[Cervantes]

The reason for this is because it prevents the user from hitting two keys at once. Say you had a shooter. WASD for movement, space bar is jump, weapons are the numbers. If you had a big long if .. elsif ..... elsif .. end if structure, only the first key in that structure would regester. So if you're moving, you might not be able to change your weapon. Or maybe you can't fire while moving. Or maybe you hold up (W) and right (D) and want to go on a diagonal up and right. But instead you only go up. None of this is good...

[[Gandalf]]

Oh oops, I figured that out yesterday, and I just used the elsif method because I only have up/down left/right, but today I only remembered the question

Anways, thanks for saving me the trouble of having to figure that out again

[theguru]

maybe something is wrong with my turing version but i think the oval's screwed up. i end up getting an '0'. but other than that, this tutorial and examples were really helpful!