Trouble creating system: No Target; front attacks

06-13-2009, 09:31 AM

Hello

Im new to this forum, Ive been playing with the editor for a few months but have come across a problem

I want to create a combat system where your unit doesnt attack by themselves (Ive firgured out this non auto aquire part) But instead need to be ordered to attack by pressing a key.
Ive searched around for similar resources, the closest was one where you press 'a' and select the target

But

I want a system where you (say-for) click 's' and your unit deals 'x' amount of damage in front of him regardless of whether an enemy is there; So there woul;d be no targeting.

So im guessing im Im looking for something like the battista ability in Battleship Pro V1.99

If all that was too confusing, I want to make my unit attack when i press an assigned button; Like a hack-n-slash or platform fighter

Any (and i do mean any) help would be appreciated
Thanks in advance

Noobo^^

06-13-2009, 11:56 AM

Anitarf

Well, one possibility might be to make the key (something other than "s", that is already reserved for stop) a hotkey for a summoning spell that summons an invisible dummy unit with 0.01 seconds life duration and a damage-on-death ability. Whenever you press the hotkey, the unit will cast this summoning spell, thus creating the dummy unit right in front of it (you can even regulate where by modifying the spell's area of effect) which will then immediately die and deal damage. Give the spell an attack animation and if that doesn't work, force the animation with triggers when the unit begins casting the spell.

An alternative would be to use triggers for the entire attack effect. You'd still use an ability to detect when the player pressed the hotkey and then you'd do some math to figure out around which point to look for enemies and then pick all enemy units in a small area around that point and damage them, or damage just the nearest one if you want it like that.

06-14-2009, 12:02 PM

Noobo

Ohk Thank you!

I tried the first method and it was effective to a certain degree
The only problem is that the damage is in radius and can damage enemies behind the unit, it also means that the damage can be offsided if the an enemy is where the "supposed" spawn area is

Could you please go into the second method with more detail? I wish for my system to have a more accurate attack
Thankyou
and
Thankyou again ^^

06-16-2009, 08:04 AM

Gorman

Basically there are two criteria for attack selection; in range, and within angle.

Within range is easy, there is a native for that. Within angle is slightly harder, but still pretty simple. You basically create a min and max angle, in this case the unit can attack 40 degrees, hence 20 degrees clockwise, and 20 degrees anti clockwise of his facing angle.

Heres a picture:

The line with the arrow is of course the facing angle, while the other two lines are the min and max angle. We just check to see if the angle between target and attacker is within this range and then do whatever you want!

Trigger:

Attack

Events

Unit - A unit Begins casting an ability

Conditions

(Ability being cast) Equal to Attack

Actions

-------- First we set the constants we will be needing --------

Set attacker = (Triggering unit)

Set facingAngle = (Facing of (Casting unit))

Set attackAngle = (20.00 / 2.00)

Set minAngle = (facingAngle - attackAngle)

Set maxAngle = (facingAngle + attackAngle)

Set attackRange = 220.00

-------- We then find every unit to be damaged --------

-------- We begin this by finding every unit within attack range --------

Unit Group - Pick every unit in (Units within attackRange of (Position of (attacker))) and do (Actions)

Loop - Actions

-------- Now that we know which units are in range, its time to which units are within the attack arc --------

Unit Group - Pick every unit in targets and do (Actions)

Loop - Actions

If (All Conditions are True) then do (Then Actions) else do (Else Actions)

If - Conditions

And - All (Conditions) are true

Conditions

-------- We check to see if they are between the min and max angles of the arc --------

(Angle from (Position of (attacker)) to (Position of (Picked unit))) Greater than or equal to minAngle

(Angle from (Position of (attacker)) to (Position of (Picked unit))) Less than or equal to maxAngle

Then - Actions

-------- Now we add our targets to targets, and then we can damage or slow or do whatever to them! --------

Unit Group - Add (Picked unit) to targets

Else - Actions

Unit Group - Pick every unit in targets and do (Actions)

Loop - Actions

-------- Insert on-attack effects here! --------

Unit - Cause (attacker) to damage (Picked unit), dealing 1000000.00 damage of attack type Hero and damage type Normal

06-17-2009, 08:58 AM	#5
Noobo	Wow! Thankyou! Extremely useful! Exactly what I needed! ty for the illustration as well Im gonna apply this along with triggers im "studdying" from a map I downloaded Thankyou both of you! Nice to see an Aussie here in the forums! ^^