Jump How High?
Control how high it jumps
Choose any sprite!
Start here to choose a sprite
/gifs/choose-a-sprite.gif
Click to jump the same height each time
How do you make it "listen" for a click?
when this sprite clicked
What's the first "half" of a jump?
glide(.2) secs to x:(0) y:()
How to set how high it jumps?
glide(.2) secs to x:(0) y:(50)
What goes up...
glide(.2) secs to x:(0) y:(0)
How will you make it change how high it goes?
This way takes too long
/gifs/manual_change_param.gif
How can we make the number y:() changeable?
A "variable" is one way we can keep track of a thing that might change
You can make a variable...
/gifs/click_variable_button.gif
And give it a name that makes sense
/gifs/name_variable.gif
Scratch variables come with sliders
/gifs/toggle_variable_display.gif
Now where does the variable go?
glide(.2) secs to x:(0) y:() (jump_size)
Type this backwards to unlock:
All together
when this sprite clicked go to x: (0) y: (0) glide (.02) secs to x: (0) y: (jump_size) switch costume to (chick-b v) say (jump_size) for (1) seconds switch costume to (chick-a v) glide (.2) secs to x: (0) y: (0)
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