GML Key Ideas

1. GML Key Ideas

2. GML • GML : Gamemaker Programming Language • Looks like java/C++ • More power than drag and drop

3. GML Getting Started // starts a comment Computer ignores rest of line

4. GML Getting Started = is assignment Makes/sets a varaible on left to value on right

5. GML Getting Started name() indicates a function call Does some work for us, gives back an answer

6. GML Getting Started name() indicates a function call Anything inside ( ) are arguments - extra information to help function do its job Help file documents functions

7. GML Getting Started • if makes a decision • { } surround block that depends on decision • Else means otherwise do this

8. GML Variables • A variable set in GML can be used in drag & drop:

9. Global • Each object has its own variables • Hits in bad guy different than hits in hero

10. Global • Each object has its own variables • Hits in bad guy different than hits in hero

11. Global • Each object has its own variables • Hits in bad guy different than hits in hero

12. Global • Each object has its own variables • Hits in bad guy different than hits in hero

13. Global • This would be an error:

14. Global • A variable titled global.XXXX is shared • lasts the entire game • available from everywhere

15. Global • A variable titled global.XXXX is shared • lasts the entire game • available from everywhere