Okay so my question is quite simple, the answer may not be.
QUESTION: If i am creating game in BGE ONLY USING Logic Bricks How could i set it to that it adds +1 Point into a property when the player clicks on a Square. I’ve got it set up as of now using on mouse click add 1 to the Property. but with that they can click anywhere and it will allow the Points to ad up. But how do i constrict it to Only work when they are on the square.?
mouse over sensor or raycast/radar sensor
Would you mind covering how to use the mouse over sensor or link me to a tutorial?
You have two sensors, one is Mouse Click, set to Tap (so if you hold the mouse down it wont add 60 pts/sec) and a Mouse Over Sensor (this has to be on the square), both connected to an AND controller, connected to you add points actuator.
Alternatively you can use a Mouse Over Any, but you have to add a property to your square (remember the property name). It doesn’t matter which type of property you use.
You always need the Mouse Click though
Watch some YouTube tutorials. They are 5 - 20 minutes each. BornCG has a good series for beginners.
Spend about a week watching 2-3 a day. Then many questions will be solved and many ideas will be born 
