Question 1: When I add a sprite, the "collisions" property is set to "enabled" by default. Should I disable it for object that will never need collision detection? For example, text that appears on the screen will never need to check for a collision. Will this save memory or should I simple not worry about it.
Question 2: Also, when I was in University toke a course on game making. They said that the more collision points that an object has, the more processing power is required by the cpu. The book was old (like 5 years old) and so maybe this doesn't matter anymore? Or, should I try to minimize the points of my collision polygons?
Question 3: What about for mobile platforms?
Thank you very much.
Note: I have already read the portion of the manual dealing with memory usage and best practices. I am just a bit of a perfectionist.