FireballClient

local rs = game.ReplicatedStorage:WaitForChild("FireballReplicatedStorage")

local re = rs:WaitForChild("RemoteEvent")
local config = require(rs:WaitForChild("CONFIGURATION"))

local cas = game:GetService("ContextActionService")
local mobileButtonDown = false
local mouse = game.Players.LocalPlayer:GetMouse()
local camera = workspace.CurrentCamera

local char = script.Parent
local humanoid = char:WaitForChild("Humanoid")

local clientStart = tick()
local clientDebounce = false

local blurEffect = Instance.new("BlurEffect")
blurEffect.Size = 0
blurEffect.Parent = game.Lighting

local cameraTrauma = 0
local shakeSeed = Random.new():NextNumber()
local shakeIterator = 0


function disableParticles(part)
    for i, child in pairs(part:GetChildren()) do
        if child:IsA("ParticleEmitter") then
            child.Enabled = false
        end
    end
end

function cameraShake(epicentre)

    if typeof(epicentre) == "Vector3" then
        cameraTrauma = math.clamp(40/(char.HumanoidRootPart.Position - epicentre).Magnitude, 0, 2)
    else
        cameraTrauma = epicentre
    end

    shakeIterator = 0
    shakeSeed = Random.new():NextNumber()
end


function explosion(explosionPos)
    local newExplosion = Instance.new("Part")
    newExplosion.Anchored = true
    newExplosion.Transparency = 1
    newExplosion.Position = explosionPos

    newExplosion.Parent = workspace

    local explosionPhase1 = rs.FireballParts.Explosion.ExplosionPhase1:Clone()
    explosionPhase1.Parent = newExplosion

    task.wait(0.5)

    local explosionPhase1Debris = rs.FireballParts.Explosion.ExplosionPhase1Debris:Clone()
    explosionPhase1Debris.Parent = newExplosion

    task.wait(0.3)
    disableParticles(explosionPhase1)
    disableParticles(explosionPhase1Debris)

    local explosionLight = rs.FireballParts.Explosion.ExplosionLight:Clone()
    explosionLight.Parent = newExplosion

    local explosionSound = rs:WaitForChild("Sounds"):WaitForChild("Explosion"):Clone()
    explosionSound.Parent = newExplosion
    explosionSound:Play()

    local explosionPhase2 = rs.FireballParts.Explosion.ExplosionPhase2:Clone()
    explosionPhase2.Parent = newExplosion
    local explosionPhase3 = rs.FireballParts.Explosion.ExplosionPhase3:Clone()
    explosionPhase3.Parent = newExplosion

    cameraShake(explosionPos)

    task.wait(0.1)
    disableParticles(explosionPhase2)
    disableParticles(explosionPhase3)

    local explosionPhase3Debris = rs.FireballParts.Explosion.ExplosionPhase3Debris:Clone()
    explosionPhase3Debris.Parent = newExplosion

    task.wait(0.3)
    disableParticles(explosionPhase3Debris)

    task.wait(0.2)
    newExplosion:Destroy()
end


function handleInput(actionName, inputState, inputObject)

    if actionName ~= "FIREBALL" or inputState ~= Enum.UserInputState.End or clientDebounce then return end

    if inputObject.KeyCode == config.hotkey then
        clientDebounce = true

        re:FireServer(mouse.Hit)

        task.wait(config.cooldown)
        clientDebounce = false

    elseif inputObject.UserInputType == Enum.UserInputType.Touch then
        mobileButtonDown = not mobileButtonDown
    end
end

function fireMobile(actionName, inputState, inputObject)

    if actionName == "FIREBALL MOBILE" and inputState == Enum.UserInputState.End and not clientDebounce then

        if mobileButtonDown then
            clientDebounce = true
            mobileButtonDown = false

            re:FireServer(mouse.Hit)

            task.wait(config.cooldown)
            clientDebounce = false

        else
            return Enum.ContextActionResult.Pass
        end
    else
        return Enum.ContextActionResult.Pass
    end
end

cas:BindAction("FIREBALL", handleInput, true, config.hotkey)

cas:BindAction("FIREBALL MOBILE", fireMobile, false, Enum.UserInputType.Touch)

cas:SetImage("FIREBALL", "rbxassetid://11565509890")
cas:SetPosition("FIREBALL", UDim2.new(0.63, 0, 0.12, 0))


re.OnClientEvent:Connect(function(instruction, data)

    if instruction == "camera shake" then
        cameraShake(data[1])


    elseif instruction == "fireball" then

        local charShooting = data[3]

        local p0 = data[1]
        local p2 = data[2]

        local distance = (p0 - p2).Magnitude
        local travelTime = distance / config.fireballSpeed

        local randomX = Random.new():NextNumber(config.minFireballOffset, config.maxFireballOffset) * (distance/100)
        randomX *= Random.new():NextNumber() > 0.5 and -1 or 1

        local randomY = Random.new():NextNumber(config.minFireballOffset, config.maxFireballOffset) * (distance/100)
        randomY *= Random.new():NextNumber() > 0.5 and -1 or 1

        local randomZ = Random.new():NextNumber(config.minFireballOffset, config.maxFireballOffset) * (distance/100)
        randomZ *= Random.new():NextNumber() > 0.5 and -1 or 1

        local p1 = p0:Lerp(p2, 0.5) + Vector3.new(randomX, randomY, randomZ)

        local newFireball = rs:WaitForChild("FireballParts"):WaitForChild("Fireball"):Clone()
        newFireball.CanCollide = false
        newFireball.Anchored = true

        newFireball.Parent = workspace

        local shootSound = rs:WaitForChild("Sounds"):WaitForChild("Shoot"):Clone()
        shootSound.Parent = charShooting.HumanoidRootPart
        shootSound:Play()

        shootSound.Ended:Connect(function()
            shootSound:Destroy()
        end)

        local increments = travelTime / game:GetService("RunService").Heartbeat:Wait()

        for i = 1, increments do
            local p0Pos = p0:Lerp(p1, i/increments)
            local p1Pos = p1:Lerp(p2, i/increments)

            local curvePos = p0Pos:Lerp(p1Pos, i/increments)
            newFireball.Position = curvePos

            if i == math.floor(increments * 0.56) then
                task.spawn(explosion, p2)
            end

            game:GetService("RunService").Heartbeat:Wait()
        end

        newFireball:Destroy()
    end
end)


game:GetService("RunService").RenderStepped:Connect(function()

    if cameraTrauma > 0 then

        local now = tick() - clientStart
        shakeIterator += 1

        local shake = (cameraTrauma ^ 2)

        local noiseX = (math.noise(shakeIterator, now, shakeSeed)) * shake
        local noiseY = (math.noise(shakeIterator + 1, now, shakeSeed)) * shake
        local noiseZ = (math.noise(shakeIterator + 2 + 1, now, shakeSeed)) * shake

        humanoid.CameraOffset = Vector3.new(noiseX, noiseY, noiseZ)
        camera.CFrame = camera.CFrame * CFrame.Angles(noiseX / 50, noiseY / 50, noiseZ / 50)

        blurEffect.Size = shake * 12

        local falloffSpeed = 1.6
        cameraTrauma = math.clamp(cameraTrauma - falloffSpeed * game:GetService("RunService").Heartbeat:Wait(), 0, 3)

    else
        humanoid.CameraOffset = Vector3.new(0, 0, 0)
    end
end)