i currently developing a game using the xna API.
now the game i am developing is 2.5d.
by 2.5d i mean the character or object can move left and right and a up and down(not just by jumping) that it would look like there is depth to the level.
try to think something like little fighter 2 where you can also walk up and down.
now i need to develop a gravity system,so far i used the idea that i draw a shadow on the ground of the level,and it follows the object or character and when the character jumps,he moves parabolic like in the real world(using very simple physics).
the gravity system detects landing if the position of it's shadow is the position of the character( or the position of the character is below the position of the shadow). is there a better way to simulate gravity in this 2.5d approach?