Ion Cannon

gistfile1.lua

--[[
	Note: This script was created for demonstrative purposes only.
]]--

--- SERVER
Network:Subscribe('FireCannon', function(target, sender)
	Network:Broadcast('FireCannon', target)
end)

-- CLIENT
local last_fire_timer = Timer()
local effects = {}

local fire_instances = {}
local first_time = true

Events:Subscribe( 'LocalPlayerInput', function(e)
	if e.input == Action.FireRight then
		if first_time or last_fire_timer:GetSeconds() > 2 then
			local target = Physics:Raycast( Camera:GetPosition(), Camera:GetAngle() * Vector3.Forward, 0, 1024 )
			Network:Send('FireCannon', target.position)
			last_fire_timer:Restart()

			first_time = false
		end
	end
end)

function CleanupEffects()
	for k, v in pairs(effects) do
		v:Remove()
	end

	effects = {}
end

function wait(ms)
	local t = Timer()
	while t:GetMilliseconds() < ms do
		coroutine.yield()
	end
end

function CannonTick(target)
	-- Spawn the laser effects
	local radius = 10
	for i=1, 32 do
		local pos = target + (Vector3(math.cos(i), 0, math.sin(i)) * radius)

		local effect = Effect.Create(AssetLocation.Game, {
			effect_id = 344,
			position = pos,
			angle = Angle()
		})
		table.insert(effects, effect)
		wait(35)

		radius = math.clamp(radius - .5, 0, 10)
	end

	wait(100)

	-- Spawn the electrical disturbance
	local effect = Effect.Create(AssetLocation.Game, {
		effect_id = 137,
		position = target,
		angle = Angle()
	})
	table.insert(effects, effect)

	wait(1000)

	-- Spawn the explosion
	local effect = Effect.Create(AssetLocation.Game, {
		effect_id = 249,
		position = target,
		angle = Angle()
	})
	table.insert(effects, effect)

	wait(5000)
	CleanupEffects()
end

Events:Subscribe('PostTick', function()
	for k, v in ipairs(fire_instances) do
		if v ~= nil then
			if coroutine.status(v) == 'dead' then
				table.remove(fire_instances, k)
			elseif coroutine.status(v) ~= 'dead' then
				coroutine.resume(v)
			end
		end
	end
end)

Events:Subscribe('ModuleUnload', function()
	CleanupEffects()
end)

Network:Subscribe('FireCannon', function(target)
	local co = coroutine.create(CannonTick)
	coroutine.resume(co, target)

	table.insert(fire_instances, co)
end)