ASM Community

hi,

as perhaps some of you know, i'm rewriting my snake game into directx. direct input and all the stuff works great. to slow down the snake, i use "Sleep" at the end of the snake moving procedure:

snakemainproc proc

      

      invoke ClearScreen

      invoke movesnake

      invoke changedirection

      .if foodflag==1

       ; invoke placefood

      .endif

      invoke DrawWindowFrame

      invoke ReadKeyboard

      .if keyboard_state[DIK_ESCAPE]

           invoke DestroyWindow,hWnd

     .elseif keyboard_state[DIK_UP]

            mov snakeone[0].direction,1

     .elseif keyboard_state[DIK_DOWN]

	       mov snakeone[0].direction,3

      .elseif keyboard_state[DIK_LEFT]

	     mov snakeone[0].direction,4

      .elseif keyboard_state[DIK_RIGHT]

	       mov snakeone[0].direction,2

      .elseif keyboard_state[DIK_S]

      .endif

            invoke Sleep,50

      invoke UpdateScreen

      

ret 

snakemainproc endp

but it seems that i don't get every keypress....and this is very important! would it be better to read the keyboard in an extra thread that runs independent from the game? is this even possible? cause i think, that this is because of that "Sleep", it seems, that even directinput doesn't get input during that time. perhaps there is a better methode to slow down my snake, and i don't need any threads? but then it is important, that i can change the game speed during gameplay....
but if i have to use threads, how to create one? i don't know anything about that......

thanks.

nop

hey,

come on, please help me, i can't continue without solving that....

the main reason why i used sleep is, to slow down the snake, otherwise it would move incredibly fast! i tested and tested, and i'm sure that this sleep doesn't allow me to read the keyboard. but how to do it else?

looking forward to get an answer....

thanks,

nop

.data?
snakespeed dd ?
.code

snakemainproc proc
Local LastTick : dword

invoke GetTickCount
sub eax,LastTick
.if eax>snakespeed
add LastTick,eax
invoke ClearScreen
invoke movesnake
invoke changedirection
.if foodflag==1
; invoke placefood
.endif
invoke DrawWindowFrame
.endif
invoke ReadKeyboard
.if keyboard_state
invoke DestroyWindow,hWnd
.elseif keyboard_state
mov snakeone[0].direction,1
.elseif keyboard_state
mov snakeone[0].direction,3
.elseif keyboard_state
mov snakeone[0].direction,4
.elseif keyboard_state
mov snakeone[0].direction,2
.elseif keyboard_state
.endif
invoke Sleep,0
invoke UpdateScreen

ret
snakemainproc endp


Try this method (read keys continously but update snake only if some time elapsed since last update)

sorry nop , i thought snakemainproc was your thread proc..
if not ; yes, lasttick should be global..

lasttick is not added to lasttick,
sub eax,lasttick
add lasttick,eax
samething with push eax,pop eax (lasttick is set to last value read from gettickcount)

anyway your conclusion is correct..

anyways, i used mov now, and it works great! the loop is fast, i get all the keyboard input,......just great! thanks!

nop