Scratch

I'm trying to perfect velocity and gravity scripts in a scrolling program.

What it does right now is changes the y position by 1 if you are touching the terrain sprites.  This, however, is not fast enough, where a mountain comes out of the sprite, and then you slowly glide up the side of the mountain. Please help!


This is my currrent script (I couldn't get some parts to work correctly):

when gf clicked
set [bounce? v] to (0)
set [scrollX v] to (0) 
set [xvel v] to (0) 
set [yvel v] to (0) 
set [gravity v] to (0) 
forever
set [xvel v] to <(xvel)*(0.95)>
set [yvel v] to <(yvel)*(0.95)>
if <key [up arrow v] pressed?>
change [yvel v] by (1)
end
if <key [left arrow v] pressed?>
change [xvel v] by (-1)
turn ccw(15) degrees
end
if <key [right arrow v] pressed?>
change [xvel v] by (1)
turn cw(15) degrees
end
if <    <not <([abs v] of <(x position) - (normalx)>) < [11]> >    or < <> or <>    > >
<((scrollX)+(xvel)) < [0]>
<((scrollX)+(xvel)) > ((480)*((z.terrs)-(1)))>
Read the comment >>>// These above go in the empty "or" block 2above.
if < not <([abs v] of ((xpositon) + (xvel))) > [199] > >
change x by (xvel)
end
else
change [scrollX v] by (xvel)
set x to (normalx)
end
change y by ((yvel)-(gravity))
if <not < <touching [Terrain1 v]?> or <touching [Terrain2 v]?> >>
change [gravity v] by (0.1)
if <(gravity) > [1.2]>
set [bounce? v] to (1)
end
else
set [gravity v] to (0)
change y by (1)
if <(bounce) = [1]>
change [yvel v] by ((0.3) * (gravity))
set [bounce v] to (0)
end
end
end

Last edited by LiquidMetal (2012-04-05 12:05:27)