--------------------------------

-- HIGHLANDER / HOGS OF WAR

-- by mikade

--------------------------------

-------------------------

-- ideas for the future

-------------------------

-- add structure

-- allow switcher, resurrector

-- nerf teleport

-- balance weapon distribution across entire team / all teams

-- add other inequalities/bonuses like... ???

-- * some hogs start off with an extra 25 health?

-- * some hogs start off poisoned?

-- * some hogs start off with a rope and 2 drills but die after their turn?

------------------

-- script follows

------------------

HedgewarsScriptLoad("/Scripts/Locale.lua")

HedgewarsScriptLoad("/Scripts/Tracker.lua")

HedgewarsScriptLoad("/Scripts/Params.lua")

-- These define weps allowed by the script.

-- These were arbitrarily defined out-of-order in initial script, so that was preserved here, resulting 

-- in a moderately odd syntax.

local atkWeps = {

	[amBazooka]=true, [amBee]=true, [amMortar]=true, [amDrill]=true, [amSnowball]=true,

	[amGrenade]=true, [amClusterBomb]=true, [amMolotov]=true, [amWatermelon]=true,

	[amHellishBomb]=true, [amGasBomb]=true, [amShotgun]=true, [amDEagle]=true,

	[amFlamethrower]=true, [amSniperRifle]=true, [amSineGun]=true, [amMinigun]=true,

	[amFirePunch]=true, [amWhip]=true, [amBaseballBat]=true, [amKamikaze]=true,

	[amSeduction]=true, [amHammer]=true, [amMine]=true, [amDynamite]=true, [amCake]=true,

	[amBallgun]=true, [amSMine]=true, [amRCPlane]=true, [amBirdy]=true, [amKnife]=true,

	[amAirAttack]=true, [amMineStrike]=true, [amNapalm]=true, [amDrillStrike]=true, [amPiano]=true, [amAirMine] = true,

	[amDuck]=true,

}

local utilWeps =  {

	[amBlowTorch]=true, [amPickHammer]=true, [amGirder]=true, [amPortalGun]=true,

	[amRope]=true, [amParachute]=true, [amTeleport]=true, [amJetpack]=true,

	[amInvulnerable]=true, [amLaserSight]=true, [amVampiric]=true,

	[amLowGravity]=true, [amExtraDamage]=true, [amExtraTime]=true,

	[amLandGun]=true, [amRubber]=true, [amIceGun]=true,

}

-- Intentionally left out:

-- * Resurrector (guaranteed to screw up the game)

-- * Time Box

-- * Switch Hedgehog (not sure why)

local wepArray = {}

local atkChoices = {}

local utilChoices = {}

local currHog

local lastHog

local started = false

local switchStage = 0

local lastWep = amNothing

local shotsFired = 0

local probability = {1,2,5,10,20,50,200,500,1000000};

local atktot = 0

local utiltot = 0

local teleportConverted = false -- used for special handling of teleport when gfPlaceHog is active

-- Script parameter stuff

--[[ Loyal Highlander.

If true, killing hogs of your own clan doesn't give you their weapons.

Otherwise, killing any hog gives you their weapons. ]]

local loyal = false

--[[ Multiple weapon usages.

This is a bit tricky to explain.

First, remind yourselves that hogs can never hold more than 1 of the same ammo type.

This param changes how ammo will be restocked after killing a hog if you

already owned this ammo.

Basically this is about if you can use the same weapon multiple times in a

turn by killing enemies in a clever way.

We need to distinguish between your current inventory and the “reset inventory”,

that is, the state to which your inventory will get reset in the next turn.

No Multi-Use (default):

	If you kill a hog who owns a weapon you currently have in your reset inventory,

	but not your inventory, you DO NOT get this weapon again.

Multi-Use:

	If you kill a hog who owns a weapon you currently have in your reset inventory,

	but not your inventory, you DO get this weapon.

Example 1:

	You have a ballgun, and use it to kill a hog who also owns a ballgun.

	No Multi-Use: You will NOT get another ballgun, since it's in your

	reset inventory.

	Multi-Use: You get another ballgun.

Example 2:

	You have a grenade and a bazooka in your inventory. You use the bazooka

	to kill a hedgehog who owns a grenade.

	In both ammo limit modes, you do NOT win any ammo since you already have

	a grenade in your inventory (not just your reset inventory), and the

	rule “no more than 1 ammo per type” applies.

]]

local multiUse = false

function onParameters()

	parseParams()

	multiUse = params["multiuse"] == "true"

	loyal = params["loyal"] == "true"

end

function CheckForWeaponSwap()

	if GetCurAmmoType() ~= lastWep then

		shotsFired = 0

	end

	lastWep = GetCurAmmoType()

end

function onSlot()

	CheckForWeaponSwap()

end

function onSetWeapon()

	CheckForWeaponSwap()

end

function onHogAttack()

	CheckForWeaponSwap()

	shotsFired = shotsFired + 1

end

function StartingSetUp(gear)

	for i = 0, AmmoTypeMax do

		if i ~= amNothing then

			setGearValue(gear,i,0)

		end

	end

	for w,c in pairs(wepArray) do

		if c == 9 and (atkWeps[w] or utilWeps[w])  then

			setGearValue(gear,w,1)

		end

	end

	setGearValue(gear,amSkip,100)

	local r = 0

	if atktot > 0 then

		r = GetRandom(atktot)+1

		for i = 0, AmmoTypeMax do

			if i ~= amNothing then

				if atkChoices[i] >= r then

					setGearValue(gear,i,1)

					break

				end

			end

		end

	end

	if utiltot > 0 then

		r = GetRandom(utiltot)+1

		for i = 0, AmmoTypeMax do

			if i ~= amNothing then

				if utilChoices[i] >= r then

					setGearValue(gear,i,1)

					break

				end

			end

		end

	end

end

function ConvertValues(gear)

	for w,c in pairs(wepArray) do

		-- Add hog ammo loadout, but don't touch teleport if in hog placement phase.

		-- If in hog placement phase, teleport will be touched later (see onNewTurn).

		if not (GetGameFlag(gfPlaceHog) and TotalRounds == -1 and (w == amTeleport)) then

			AddAmmo(gear, w, getGearValue(gear,w) )

		end

	end

end

-- this is called when a hog dies

function TransferWeps(gear)

	if CurrentHedgehog ~= nil and CurrentHedgehog ~= gear and (not loyal or (GetHogClan(CurrentHedgehog) ~= GetHogClan(gear))) then

		local x,y,color

		local vgear

		local vgtX, vgtY, vgtdX, vgtdY, vgtAngle, vgtFrame, vgtFrameTicks, vgtState, vgtTimer, vgtTint

		local dspl = IsHogLocal(CurrentHedgehog)

		local ammolist = ''

		if dspl then

			x,y = GetGearPosition(CurrentHedgehog)

			color = GetClanColor(GetHogClan(CurrentHedgehog))

		end

		for w,c in pairs(wepArray) do

			local val = getGearValue(gear,w)

			if val ~= 0 and (multiUse or (wepArray[w] ~= 9 and getGearValue(CurrentHedgehog, w) == 0))  then

				setGearValue(CurrentHedgehog, w, val)

				-- if you are using multi-shot weapon, gimme one more

				if (GetCurAmmoType() == w) and (shotsFired ~= 0) then

					AddAmmo(CurrentHedgehog, w, val+1)

				-- assign ammo as per normal

				else

					AddAmmo(CurrentHedgehog, w, val)

				end

				if dspl then

					if ammolist == '' then

						ammolist = GetAmmoName(w)

					else

						ammolist = ammolist .. ' • ' .. GetAmmoName(w)

					end

					x = x + 2

					y = y + 32

					vgear = AddVisualGear(x, y, vgtAmmo, 0, true)

					if vgear ~= nil then

						vgtX,vgtY,vgtdX,vgtdY,vgtAngle,vgtFrame,vgtFrameTicks,vgtState,vgtTimer,vgtTint = GetVisualGearValues(vgear)

						vgtFrame = w

						SetVisualGearValues(vgear,vgtX,vgtY,vgtdX,vgtdY,vgtAngle,vgtFrame,vgtFrameTicks,vgtState,vgtTimer,vgtTint)

					end

				end

			end

		end

		if dspl and ammolist ~= '' then

			PlaySound(sndShotgunReload);

			AddCaption(ammolist, color, capgrpAmmoinfo)

		end

	end

end

function onGameInit()

	EnableGameFlags(gfInfAttack, gfRandomOrder, gfPerHogAmmo)

	DisableGameFlags(gfResetWeps, gfSharedAmmo)

	HealthCaseProb = 100

	if loyal then

		Goals = loc("Loyal Highlander: Eliminate enemy hogs to take their weapons") .. "|"

	else

		Goals = loc("Highlander: Eliminate hogs to take their weapons") .. "|"

	end

	Goals = Goals .. loc("Replenishment: Weapons are restocked on turn start of a new hog") .. "|" ..

	loc("Ammo Limit: Hogs can’t have more than 1 ammo per type") .. "|"

	if multiUse then

		Goals = Goals .. loc("Multi-Use: You can take and use the same ammo type multiple times in a turn")

	else

		Goals = Goals .. loc("No Multi-Use: Once you used an ammo, you can’t take it again in this turn")

	end

end

function onGameStart()

	utilChoices[amSkip] = 0

	local c = 0

	for i = 0, AmmoTypeMax do

		if i ~= amNothing then

			atkChoices[i] = 0

			utilChoices[i] = 0

			if i ~= 7 then

				wepArray[i] = 0

				c = GetAmmo(i)

				if c > 8 then

					c = 9

				end

				wepArray[i] = c

				if c < 9 and c > 0 then

					if atkWeps[i] then

						atktot = atktot + probability[c]

						atkChoices[i] = atktot

					elseif utilWeps[i] then

						utiltot = utiltot + probability[c]

						utilChoices[i] = utiltot

					end

				end

			end

		end

	end

	runOnGears(StartingSetUp)

	runOnGears(ConvertValues)

end

function CheckForHogSwitch()

	--[[ Restock the weapons of the hog on turn start, provided it is not the same hog as before.

	This exception is done do avoid a single hog receiving tons of weapons when it is the only unfrozen

	hog and takes consecutive turns. ]]

	if (CurrentHedgehog ~= nil) then

		currHog = CurrentHedgehog

		if currHog ~= lastHog then

			-- re-assign ammo to this guy, so that his entire ammo set will

			-- be visible during another player's turn

			if lastHog ~= nil and GetHealth(lastHog) then

				ConvertValues(lastHog)

			end

			-- give the new hog what he is supposed to have, too

			ConvertValues(CurrentHedgehog)

		end

		lastHog = currHog

	end

end

function onNewTurn()

	CheckForHogSwitch()

	-- If hog placement phase is over, set the hog's actual teleport loadout

	if GetGameFlag(gfPlaceHog) and TotalRounds == 0 and not teleportConverted then

		runOnHogs(function(gear)

			AddAmmo(gear, amTeleport, getGearValue(gear, amTeleport))

		end)

		-- This makes sure this code is only run once

		teleportConverted = true

	end

end

function onGearAdd(gear)

	if (GetGearType(gear) == gtHedgehog) then

		trackGear(gear)

	end

end

function onGearDelete(gear)

	if (GetGearType(gear) == gtHedgehog) then

		TransferWeps(gear)

		trackDeletion(gear)

	end

end