Scratch

well not actually trigonometry its called slope in mathematics
what u need is to do for a straight line.

angle = (atan( y2 - y1/x2 - x1)+90) but beware as if both are on same x this will return 0 value

so its better to make an if statement to do it another way if x2 - x1.
Use the above its a top viewed game

now if u consider real projectile motion the motion of particle =
on x axis = firing vel(cos(angle)) * time;
on y axis = firing vel(sin(angle))*time - 1/2*g*t*t; where g is ur value of gravity using this u can get the resultant angle better if its sideview.

then we get  x2 - x1 = vel cos(angle)*t
now y2-y1 = vel sin (angle)*t - 1/2 g*t*t;
confusing now to get result u need to do some maths to find the value of Angle
lemme do it easy for u
if they lie on same hieght the height for the angle desired is :

angle = asin ((x2- x1)*g)/4*u*u;
but for different hieght the formula is quite tricky actually it has more variables then equations. Is this one ok

Last edited by fanofcena (2010-01-13 03:27:45)