flash - How do I play an animation in a specific place controlled by actionscript? -

i have moving character , when press button want shoot @ object pointed mouse. character moving don't know how make animation in specific place. using flash, actionscript 2 or 3

there many ways in can done, 1 known 1 of simplest:

given source point , target point b:

calculate distance between , b

var distance:number = computedistance(a,b); //define function computedistance returns pythagorean distance between , b 

calculate x , y difference

var dx:number = b.x - a.x; var dy:number = b.y - a.y;      // normalization. think of ratio of legs relative hypotenuse dx = dx / distance;  dy = dy / distance;` 

calcualate xspeed , yspeed multiplying dx , dy speedperframe (arbitrary)

var xspeed:number = dx*speedperframe; var yspeed:number = dy*speedperframe; 

increment object's x , y position using xspeed , yspeed in main game loop (respectively). make sure add check if object has arrived @ destination point.