Scratch

It can't move down from -175 and still not exceed -175. Minus that part, the script would look like this:

when gf clicked
go to x: [0] y: [170]
forever if <<(y position) > [-175]> or <(y position) = [-175] >>
change x by [-1]
wait [0.01] secs
end

I always use the wait block when I am animating something or moving a sprite because otherwise it looks like it just jumps from place to place instead of actually moving there.

Hope that helps, and welcome to scratch!

Last edited by shivadas (2013-03-30 21:35:41)

still cant get it to work

when you fall by more than 1 pixel per step, you have the possibility of overshooting -175; in that case, you would use an "if else" statement to set it back:

when gf clicked
go to x: [0] y: [170]
set [falling speed v] to [-1]
forever
if < (y position) > [-175]>
   change y by (falling speed)
else
   set y to [-175]
end

xlk wrote:

you just used a variable for no reason...
that would only be usefull to simulate gravity, if you added a "change falling speed by -1" block.
Still, he did say 1 step intervals, so why bother about overshooting?

sorry... i'm new here and am learning about the forum by trying it out. have mercy.

i had a couple reasons for the variable but i was probably directing my statements at the people who said the "do not exceed" instruction didn't make sense and less to the original question (i probably should have made that more clear).

i used it because variables can vary, even when they don't. so though it does nothing, it suggests a lot: it suggests other cases for which the variable takes other values (which is what i was trying to point out). i figured this was probably an early assignment (on simplistic gravity) and that more would follow (on realistic gravity).

i probably should have thought twice about that.