Ok I've done a basic combo system, there's a lot of room for improvement to add more features..
At the moment the stick man doesn't walk (I couldn't be arsed to draw the walking anim) but if you hit space he will jab, space again he will do a second jab, and space again he will do a straight - all part of a combo chain which will trace to the output window (to let you know which moves hes doing)
Basically you need to do a couple of things to add a new combo -
Draw the moves on the stick man - you only need to draw each unique frame, you don't need to draw a frame and copy it multiple times to get a delay on frames, this is handled by the animation system
Add the animation to the player object (frames and delays)
Add the new combo to the player object.
------------------
Animations are stored in a list on all objects, it's basically an array of Animation objects.
To create a new one just declare:
var anim:Animation = new Animation("AnimationName");
anim.addFrames(<Frame numbers as array list>);
anim.addDelays(<Delay times as array list, must be same number of delays as frames>);
Frame numbers are the frames from the movieclip that you are using (i.e. the stickman) and should be in order that you want them to play. i.e. the jab is frames 1,2, and 3.
You need to add an extra frame at the end - explaining why would take too long, see if you can work it out :P
anim.addFrames(new Array(1,2,3,3));
Then add your delays - which is the time in frames before the next frame in the list is shown
anim.addDelays(1,1,1,-1);
The -1 means that when the game reaches this frame it should end the animation and set the current animation for this object to null
A value of 0 means loop on the last frame, and a value of 1 or more means play this frame as normal then loop to the first frame.
Once you have added the animation you need to push it onto the players animation array
Anims.push(anim);
Now you can add the combo
Combos are made up of an opening move and a set of follow on moves - there can only be 2 follow on moves at the moment - one for the punch button, and one for the kick button.
Adding more just results in nothing! (That's why this needs improvement!)
Basically you declare a new Attack object and give it the following parameters
var myAttack:Attack = new Attack("AttackName", "Animation Name to Play", <attack power>, <recovery time in frames>, <punch or kick attack :Boolean, true = punch>, <opening attack :Boolean>);
You need one opening attack to start the combo - and at the moment you can only have 2 (one for punch and kick etc - improve it!)
You need to declare the attacks, then for each attack add the attacks that are going to follow it to it's FollowUps array - for instance in my code
// Declare new jab attack, it's an opening attack using the punch key
var jab:Attack = new Attack("Jab", "Jab", 5, 10, true, true);
// Declare new jab2 attack, not an opener but uses the punch key
var jab2:Attack = new Attack("Jab2", "Jab", 5, 15, true, false);
// Declare straight attack, not an opener using the punch key
var straight:Attack = new Attack("Straight", "Straight", 5, 25, true, false);
// Make jab2 a followup from jab
jab.FollowUps = new Array(jab2);
// Make straight a followup from jab2
jab2.FollowUps = new Array(straight);
So now you have a 'chain' of combos.
Push the opening attack onto the Combos array
Combos.push(jab);
It's possible to have a 50 hitter if you really want, with all sorts of kicks and punches, but it's still limited to that opener - so you could have
P,P,P combo
P,P,P,P
P,K,P,P
P,K,K
etc etc and so on!
Oh there's the start of a game engine going on there too - you can add a couple of players and you can control them both at the same time etc