Help with drawbox.... (i think thats the problem)

[recneps]

am i just a newbie or can drawbox not use variables instead of numbers??
im making a pong program and here it is...

code:

%position/direction variables var x, y, dx, dy, score1, score2 : int score1 := 0 score2 := 0 var midx : real := maxx * 0.5 var midy : real := maxy * 0.5 var p1x1, p1x2, p1y1, p1y2, p2x1, p2x2, p2y1, p2y2 : real p1x1 := 0 p1x2 := 10 p1y1 := midy - 100 p1y2 := midy + 100 %clear screen cls %picture size const pic_width := 10 const pic_height := 10 %set pos/dir variables randint (x, 10, maxx - 10 - pic_width) randint (y, 10, maxy - 10 - pic_height) randint (dx, -3, 3) randint (dy, -3, 3) %smoother animation setscreen ("offscreenonly") %begin animation/gameplay loop     cls     if x + dx < 0 or x + dx + pic_width > maxx then         dx := -dx %Change x direction if bounce     end if     if y + dy < 0 or y + dy + pic_height > maxy then         dy := -dy %change y direction if bounce     end if     x := x + dx %create the new positions     y := y + dy %create the new positions     drawoval (x, y, pic_width, pic_height, 7) %draw ball     %drawbox (p1x1, p1y1, p1x2, p1y2, 7)     View.Update %part of offscreenonly     delay (7)     exit when hasch end loop setscreen ("nooffscreenonly") %change screen back to normal

and it says error at
drawbox (p1x1, p1y1, p1x2, p1y2, 7)
"argument is wrong type". whats wrong with it? you can use viariables right?

[AsianSensation]

drawbox doesn't take real numbers as it's parameters, make sure that either those coordinates are integers, or use

code:

round

to round the real numbers into the closest integer, and then plug in the rounded value.

[DanShadow]

Hey AsianSensation...im having a problem that round could help with, could you private message me on how to use round in this situation:

code:

var hp,maxhp:int:=20 var hp_percent:real:=0 hp_percent:=(hp/maxhp)*100 put "HP: ",hp,"/",maxhp," [",hp_percent,"%]"

If you can, thanks!

[recneps]

how does round work?
like

code:

round maxx/2

or what?[/code]

[Tony]

it's

code:

round ( real value or expression that returns a real value )

Note: if you use division in your expression, then it will always return a real value, even if numbers divide evenly.

[DanShadow]

Ah! I get it. So for me its like:

code:

round(hp_percent)

neat, tx

[recneps]

thanks that good to know in future, but since the boards were down for a bit (?) i figured out i could use div to give me whole numbers only