background

[dying to live]

can someone help me make a background for my animation/game thing. im trying to make a ufo fly above a town at night time when you press a direction. here is my code so far.

code:

%kyle's ufo thing var x,y : int x:=100 y:=100 var chars : array char of boolean var ufo :int %draws the ufo drawfillbox(15,15,50,20,red) drawfillbox(20,20,45,15,9) drawfillbox(20,20,45,25,8) drawline(15,5,23,15,7) drawline(23,15,43,15,7) drawline(43,15,50,5,7) drawline(50,5,15,5,7) drawfill(35,10,yellow,7) drawbox(15,15,50,20,7) drawbox(20,15,45,20,7) drawbox(20,20,45,25,7) %takes the picture of the ufo ufo := Pic.New (15,5,50,25) loop Input.KeyDown (chars) Pic.Draw (ufo, x, y, picCopy)     if chars (KEY_UP_ARROW) then     y:=y+5     end if         if chars (KEY_RIGHT_ARROW) then     x:=x+5     end if         if chars (KEY_LEFT_ARROW) then     x:=x-5     end if         if chars (KEY_DOWN_ARROW) then     y:=y-5     end if                         drawbox(x,y,x,y,red)             delay(50) cls end loop

can anyone help me cuz when i use the "pic.new" and "pic.copy" command it takes away the background when i run it.

[Delos]

Ok...

For this you'll need to look up on View.Update, and flicker reduction. Conventiantly, there just happens to be a great tutorial on the very subject! Amazing what you'll find in that section:

No more screen flickers! by tony

The idea is that you'll consider the screen in two layers. You have the background, and the foreground. Each frame, you redraw the background, then you update the position of the objects (foreground) over the background. Then you View.Update the whole screen - effectively producing a clean animation.
Enjoy.

[dying to live]

yeah so that didnt help me at all...

[gigaman]

Here is a bit of an update for flikering

use the setscreen command

code:

setscreen("offscreenonly")

then after every time it draw the object use View.Update

[AsianSensation]

I think he wants people to make a background for him. I am assuming using drawline and drawoval and stuff like that.

If that's what you want, search for Pic~2~Code by Delta, it's quite useful.