Scratch Programming Session 9 of 10 Review elements to use in stories, games, etc.

Objectives REVIEW, ANSWER QUESTIONS, GET FEEDBACK We will be going around again today to check if you are having any problems with your project.

Important Concepts for Project Variables – When/Where/How? Time Loops – When/Where/Why? Transitions

Variables How to make a variable – Go to variables tab – Click create variable – Give Variable a name What could variables be used for?

Loops How to Loop: – Insert a Forever or a Repeat [ ] times loop – Insert what you want inside it When to use a loop – If you repeat the same action several times – To count time

Time Count-Down Timer: – Forever – Wait 1 second – Timer=Timer-1 Time Elapsed: – Forever – Wait 1 Second – Timer=Timer+1 How to include an Element of time in the game:

Transitions Changing from one “level” or “scene” or part to another – Broadcast/Receive – Time

Changing Parts with Broadcast and Receive Place a [broadcast Scene2] at the end of an event Add a [when I receive Scene2] to begin the next level/scene.

Changing Parts with Time Start with a Forever if Time=20 – Say “I’m going to do something here” This is the Timer, it controls the clock that everything else will be run on. This is an event that is triggered when the Time = 9, or when 9 seconds have passed. This tells the script that the event is finished, and the loop can stop looking for Time=20

Reset Add a button (could be when Green Flag is clicked) to reset your game or story. – Show or hide all of the sprites – Reset all of the Variables to their starting value (usually 0) – Anything else your specific program needs (change the background, move sprites to a starting position, anything)

QUESTIONS?? What problems are you having? What don’t you know how to do? What would you like us to go over? Continue your project.