Im setting my tower defence game and I have some math problems.
I have a tower, that spawns projectiles, which is the arrow's shadow, so it moves on the ground. Now i want to attach the arrow sprite at the corresponding height.
Here is what i have:
<img src="https://dl.dropboxusercontent.com/u/19082408/ArrowArch.JPG" border="0" />
I have a local variable for the current height and i need it to show what height is suitable (the blue line)at every step of the way. I imagine lerp is the way but couldn't figure it out on my own. Any help is apreciated.