I am making a boss battle, but i dont have any experience about AI. I’ve never used it.
- What i need
Hint, Example code, All good!
I want to know how enemy AIs working,
And make them keep distance from player.
Please tell me if you need something to help/answer.
I suggest you start learning about Pathfinding
And coroutines to handle the pathfinding:
Yes your question is a little vague, and its complicated to tell you “one thing” you should do to build your boss. Its a wide group of specific things you need to handle, as animations, sounds, pathfinding, events, etc. And each one requires handling techniques of how to use them properly
Sorry for my question isn’t detail. I have some programming knowledge. But I’ve never used AI. I don’t even got what do i do for code. I need example code or hint for making code. I’ll correct the question.
But I’m thinking that i should learn more with Pathfinding. It will be help, Thank you.
Probably you don’t even need an “AI” for it. Look into state machines, you don’t need a special module for it, it’s just a simple script that switches between certain types of behaviors.
They look like this. (no, you don’t have to make an image, just script something that does this.)
You have a state, and then when that state changes switch between certain behaviors, like sleeping (so the players can attack), attacking, evading, using powerup1, powerup2, etc…
It’s very simple, for example:
local state = path.to.state -- or possibly just a string
repeat
while math.random() < 0.2 do
state = "move"
task.wait(1)
state = "attack"
task.wait(1)
end
state = "sleep"
task.wait(5)
until false
Just an example, it switches between moving and attacking, and then to sleeping so the players can do damage. It’s a simple state machine
In another part of the script, or a whole separate one you can have the system that controls the behavior when the state changes.
It depends on the type of boss. Is it like a Zelda dungeon boss that you fight a big monster in cycles? Or are you just fighting some guy who’s theoretically able to be hit at any time? The distinction is important.
For the latter, your regular enemy AI can be used as a base. Toss in some dodging and have him use special moves whenever a window opens up for some extra challenge, and make sure he’s got enough health to not be taken out instantly by most players who reach him.
For the former, you need to be familiar with the boss cycle. This type of boss typically goes through a phase where it is invulnerable and attacks; then it exposes its weak point, such as for a specific attack; and then the player has to get to the weak point and get some hits in before the boss recovers and becomes invulnerable again.
For example, Colgera in Tears of the Kingdom: It spends some time flying around attacking you, then it shoots ice crystals from its back exposing its weak points underneath, and you can then dive through those or shoot them with arrows to do damage. Depending on the challenge you want to give the players, you can also make getting at the weak point require a specific action to be taken, for example to defeat the Marbled Gohma in Tears of the Kingdom you need to first throw Yunobo at its legs so it collapses and you can climb up to reach its eye.
Basically, for that type of boss, you will generally be iterating through actions the boss can take until specific conditions are met and the player can reach the weak point. What Den_vers posted is pretty similar, but giving the player the power to create or capitalize on opportunities has a lot more room for variation than just surviving until the enemy sleeps. Though, it does depend on the type of game you are making and what you want out of the boss fight. here’s something pretty basic:
local Boss = script.Parent:FindFirstChild("Humanoid") --I'm assuming the boss uses a humanoid for this example
local target --set this to the character of the player fighting the boss
local players = game:GetService("Players")
local forcefield
local function regenerateForceField()
forcefield = Instance.new("ForceField")
forcefield.Visible = false --or true if you want
forcefield.Parent = boss.RootPart
end
regenerateForceField() --assuming you want it invulnerable from the start
local function changeTarget()
--your code for choosing the boss's target goes here; I suggest either nearest player, a random player in the arena, or whoever initiated the fight
end
changeTarget() --sets initial target for the boss to function
--define attack types: these should each code an entire action from start to end
local attack = {}
attack[1] = function()
--code goes here
end
attack[2] = function()
--code goes here
end
attack[3] = function()
--code goes here
forcefield:Destroy() --the boss can now be attacked
--code for signifying the vulnerable state goes here
task.wait(5) --change to however many seconds you want it to stay vulnerable
end
local function move()
--put code for moving to a more tactical position relative to the target player here
--depending on the boss, this could mean walking towards the player, pivoting, or moving in a specific arc
end
while Boss.Health > 0 do
if not forcefield then regenerateForceField() end
changeTarget() --you can comment this out if you only want it to fight the first player set
if math.random() > 0.2 then
attack[math.random(#attack)]() --chooses random attack
else
move()
end
task.wait()
end
--Add code for what the boss does when it's defeated if you want
(make sure all weapons use Humanoid:TakeDamage() for the forcefield to work properly!)
Once you have the basic framework for the boss’s cycle down, you can focus on coding each individual attack. If players complain about RNG you can also try setting a maximum number of actions before it has to make itself vulnerable on the next turn, or even have the move that makes it vulnerable always happen after 3 attacks.
I will try this. This will be help with making my first boss.
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