how do i add global variable only once every trigger ?

so the story is, i have a globalvariable "MISSIONCOMPLETE" with the initial value is 0.

if the MISSIONCOMPLETE value is 3, then the player can go to the next stage

to add the value:

1. player must overlap the object

2. player must touch the object

so the question is:

1. how do i add the value only once every trigger ? i mean if the player overlap the object more than one time, MISSIONCOMPLETE just add 1 value (without destroy the object)

2. how do i add the value only once every i touch the object ? i mean if player touch the object more than one time,

MIISIONCOMPLETE just add 1 value (without destroy the object)

dropbox.com/s/5hn9ctiyamnfw0x/tanya.PNG

please help , thanks before

if you are using is overlaping object and the object doesnt move anymore you can add under it another condition trigger once.

however, if you move the same object that is overlapping even for 1 px the overlapping condition is going to trigger again. since will count as a new event happening overlapping at a different position.

for object value when touched. use condition on touched object or tapped object. both trigger one time. then in action tab near the condition for both the above and touch conditions use add value to your global variable.

read this also - Holy Bible of C2

look at examples and search for data inputted - Holy section for beginners.

edited reason: miss typing.

— i already add condition trigger once