Scratch

oh thanks!!!!!!

Hello!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

i did it when i started

Try using variables:

when gf  cliked
set [score v] to [0]
stop script

Now score = 0. But lets say you get a gold coin that gives you 100 points:

when gf clicked
forever
 if <touching color[#FFFF00]
  change [score v] to [0]
 end
end

Now let's say you want a timer that keeps track of how long it takes:

when gf clicked
set [timer v] to 0
forever
 wait [1] sec
 change [timer v] by [1]
 

The timer changes by one every second. Then let's say you're final score counts on your score and timing and the goal is a blue line:

when gf clicked
if <touching color[#0000FF]>
 set [final score] to < <{timer}> - <{score}> >
end
stop scripts

Now final score eqauls your "pre-score" minus how long it took to get to the goal.

THIS GUIDE WILL TELL YOU HOW TO USE MOTION

All scripts start with this:

when gf clicked

In the bottom right corner of the stage there is an x co-ordinate and a y co-ordinate. These tell you where your mouse is but sprites also have an x and y co-ordinate. This script would tell a sprite to go to the middle of the screen.

when gf clicked
go to x (0) y (0)

The x and y co-ordinates are very important in movement. The change x/y by 10 blocks change the x/y co-ordinate of a sprite. The set x/y to 0 blocks set x/y to that. The move 10 steps block move the sprite a specified number of steps in whatever direction it is facing.

when gf clicked
go to x (0) y (0)
change x by (10)
change y by (10)
move (-10) steps
set x to (0)
set y to (0)

This will send a sprite to:
x0 y0 then it will glide to
x10 y0 then it will glide to
x10 y10 then it will glide to
x0 y10 then it will go to
x0 y0

Last edited by JH1010 (2012-07-07 02:53:27)

Here are some motion and sensor scripts. The forums are not instant, there are only... 1,159,632 users that can help and not all of them are looking at this topic.

Here is some basic motion. You use the arrow keys to move.

when gf clicked
go to x: (0) y: (0)
forever
  if <key [right arrow v] pressed?>
    change x by (5)
  end
  if <key [left arrow v] pressed?>
    change x by (-5)
  end
  if <key [up arrow v] pressed?>
    change y by (5)
  end
  if <key [down arrow v] pressed?>
    change y by (-5)
  end
end

For sensing, you will need another sprite. Click the button right below the stage/screen/project window/whatever that looks like a paintbrush. Now paint a sprite large enough that is easily visible and looks different than the Scratch cat.

Then, use this script in the new sprite.

when gf clicked // this sprite is not movable with this script
go to x: (100) y: (0)
forever
  if <touching [scratch_cat v]?>
    say [Hello, Scratch cat!] for (2) secs // replace with what you want to happen 
    change [color v] effect by (25) // when the sprites touch
  end
end

To make the new sprite movable with the mouse, use this script.

when gf clicked
forever
  go to [mouse-pointer v]
end

Last edited by HD123 (2012-07-07 09:23:14)

1) The red blocks are blocks that don't exist. 
2)To do that, click the quote botton at the bottom of a post.