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--
-- file: game_end.lua
-- brief: handles trigger conditions for game over
-- author: Andrea Piras
--
-- Copyright (C) 2010-2013.
-- Licensed under the terms of the GNU GPL, v2 or later.
--
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
function gadget:GetInfo()
return {
name = "Game End",
desc = "Handles team/allyteam deaths and declares gameover",
author = "Andrea Piras",
date = "June, 2013",
license = "GNU GPL, v2 or later",
layer = 0,
enabled = true -- loaded by default?
}
end
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-- synced only
if (not gadgetHandler:IsSyncedCode()) then
return false
end
local modOptions = Spring.GetModOptions()
-- teamDeathMode possible values: "none", "teamzerounits" , "allyzerounits"
local teamDeathMode = modOptions.teamdeathmode or "allyzerounits"
-- sharedDynamicAllianceVictory is a C-like bool
local sharedDynamicAllianceVictory = tonumber(modOptions.shareddynamicalliancevictory) or 0
-- ignoreGaia is a C-like bool
local ignoreGaia = tonumber(modOptions.ignoregaiawinner) or 1
--------------------------------------------------------------------------------
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local KillTeam = Spring.KillTeam
local GetAllyTeamList = Spring.GetAllyTeamList
local GetTeamList = Spring.GetTeamList
local GetPlayerInfo = Spring.GetPlayerInfo
local GetPlayerList = Spring.GetPlayerList
local GetTeamInfo = Spring.GetTeamInfo
local GetTeamUnitCount = Spring.GetTeamUnitCount
local GetAIInfo = Spring.GetAIInfo
local GetTeamLuaAI = Spring.GetTeamLuaAI
local GameOver = Spring.GameOver
local AreTeamsAllied = Spring.AreTeamsAllied
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--allyTeamInfos structure:
-- allyTeamInfos = {
-- [allyTeamID] = {
-- teams = {
-- [teamID]= {
-- unitCount,
-- isGaia,
-- dead,
-- isAI,
-- isControlled,
-- players = {
-- [playerID] = isControlling
-- },
-- },
-- },
-- unitCount,
-- isGaia,
-- dead,
-- },
--}
local allyTeamInfos = {}
local teamToAllyTeam = {}
local playerIDtoAIs = {}
local playerQuitIsDead = true
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function gadget:GameOver()
-- remove ourself after successful game over
gadgetHandler:RemoveGadget()
end
function gadget:Initialize()
if teamDeathMode == "none" then
gadgetHandler:RemoveGadget()
return
end
local gaiaTeamID = Spring.GetGaiaTeamID()
local teamCount = 0
for _,teamID in ipairs(GetTeamList()) do
if ignoreGaia ~= 1 or teamID ~= gaiaTeamID then
teamCount = teamCount + 1
end
end
if teamCount < 2 then -- sandbox mode ( possibly gaia + possibly one player)
gadgetHandler:RemoveGadget()
return
elseif teamCount == 2 then
playerQuitIsDead = false -- let player quit & rejoin in 1v1
end
-- at start, fill in the table of all alive allyteams
for _,allyTeamID in ipairs(GetAllyTeamList()) do
local allyTeamInfo = {}
allyTeamInfo.unitCount = 0
allyTeamInfo.teams = {}
for _,teamID in ipairs(GetTeamList(allyTeamID)) do
teamToAllyTeam[teamID] = allyTeamID
local teamInfo = {}
teamInfo.players = {}
--is it engine ai?
teamInfo.isAI = select(4,GetTeamInfo(teamID))
teamInfo.hasLeader = select(2,GetTeamInfo(teamID)) >= 0
if teamInfo.isAI then
--store who hosts that engine ai
local AIHostPlayerID = select(3,GetAIInfo(teamID))
playerIDtoAIs[AIHostPlayerID] = playerIDtoAIs[AIHostPlayerID] or {}
playerIDtoAIs[AIHostPlayerID][teamID] = allyTeamID
end
--is luaai
if GetTeamLuaAI(teamID) ~= "" then
teamInfo.isAI = true
teamInfo.isControlled = true
end
--is gaia
if teamID == gaiaTeamID then
allyTeamInfo.isGaia = true
teamInfo.isGaia = true
teamInfo.isControlled = true
end
teamInfo.unitCount = GetTeamUnitCount(teamID)
allyTeamInfo.unitCount = allyTeamInfo.unitCount + teamInfo.unitCount
allyTeamInfo.teams[teamID] = teamInfo
end
allyTeamInfos[allyTeamID] = allyTeamInfo
end
for _,playerID in ipairs(GetPlayerList()) do
gadget:PlayerChanged(playerID)
end
end
local function IsCandidateWinner(allyTeamID)
return not allyTeamInfos[allyTeamID].dead and (ignoreGaia == 0 or not allyTeamInfos[allyTeamID].isGaia)
end
local function CheckSingleAllyVictoryEnd()
local winnerCount = 0
local candidateWinners = {}
-- find the last remaining allyteam
for allyTeamID in pairs(allyTeamInfos) do
if IsCandidateWinner(allyTeamID) then
winnerCount = winnerCount + 1
candidateWinners[#candidateWinners+1] = allyTeamID
end
end
if #candidateWinners > 1 then
return false
end
return candidateWinners
end
local function AreAllyTeamsDoubleAllied(firstAllyTeamID, secondAllyTeamID)
-- we need to check for both directions of alliance
for teamA in pairs(allyTeamInfos[firstAllyTeamID].teams) do
for teamB in pairs(allyTeamInfos[secondAllyTeamID].teams) do
if not AreTeamsAllied(teamA, teamB) or not AreTeamsAllied(teamB, teamA) then
return false
end
end
end
return true
end
local function CheckSharedAllyVictoryEnd()
-- we have to cross check all the alliances
local candidateWinners = {}
local winnerCountSquared = 0
local aliveCount = 0
for allyTeamA in pairs(allyTeamInfos) do
if IsCandidateWinner(allyTeamA) then
aliveCount = aliveCount + 1
for allyTeamB in pairs(allyTeamInfos) do
if IsCandidateWinner(allyTeamB) and AreAllyTeamsDoubleAllied(allyTeamA, allyTeamB) then
-- store both check directions
-- since we're gonna check if we're allied against ourself, only secondAllyTeamID needs to be stored
candidateWinners[allyTeamB] = true
winnerCountSquared = winnerCountSquared + 1
end
end
end
end
if aliveCount*aliveCount ~= winnerCountSquared then
return false
end
-- all the allyteams alive are bidirectionally allied against eachother, they are all winners
local winnersCorrectFormat = {}
for winner in pairs(candidateWinners) do
winnersCorrectFormat[#winnersCorrectFormat+1] = winner
end
return winnersCorrectFormat
end
local function UpdateAllyTeamIsDead(allyTeamID)
local allyTeamInfo = allyTeamInfos[allyTeamID]
local dead = true
for teamID,teamInfo in pairs(allyTeamInfo.teams) do
if not playerQuitIsDead then
dead = dead and (teamInfo.dead or not teamInfo.hasLeader )
else
dead = dead and (teamInfo.dead or not teamInfo.isControlled )
end
end
allyTeamInfos[allyTeamID].dead = dead
end
function gadget:GameFrame()
for _,playerID in ipairs(GetPlayerList()) do
gadget:PlayerChanged(playerID)
end
local winners
if sharedDynamicAllianceVictory == 0 then
winners = CheckSingleAllyVictoryEnd()
else
winners = CheckSharedAllyVictoryEnd()
end
if winners then
GameOver(winners)
end
end
function gadget:PlayerChanged(playerID)
local _,active,spectator,teamID = GetPlayerInfo(playerID)
local allyTeamID = teamToAllyTeam[teamID]
local teamInfo = allyTeamInfos[allyTeamID].teams[teamID]
teamInfo.players[playerID] = active and not spectator
teamInfo.hasLeader = select(2,GetTeamInfo(teamID)) >= 0
if not teamInfo.hasLeader and not teamInfo.dead then
KillTeam(teamID)
end
if not teamInfo.isAI then
--if team isn't ai controlled, then we need to check if we have attached players
teamInfo.isControlled = false
for _,isControlling in pairs(teamInfo.players) do
if isControlling then
teamInfo.isControlled = true
break
end
end
end
--if player is an AI controller, then mark all hosted AIs as uncontrolled
local AIHostList = playerIDtoAIs[playerID] or {}
for AITeam, AIAllyTeam in pairs(AIHostList) do
allyTeamInfos[AIAllyTeam].teams[AITeam].isControlled = active
end
allyTeamInfos[allyTeamID].teams[teamID] = teamInfo
UpdateAllyTeamIsDead(allyTeamID)
end
function gadget:TeamDied(teamID)
local allyTeamID = teamToAllyTeam[teamID]
local allyTeamInfo = allyTeamInfos[allyTeamID]
allyTeamInfo.teams[teamID].dead = true
allyTeamInfos[allyTeamID] = allyTeamInfo
UpdateAllyTeamIsDead(allyTeamID)
end
function gadget:UnitCreated(unitID, unitDefID, unitTeamID)
local allyTeamID = teamToAllyTeam[unitTeamID]
local allyTeamInfo = allyTeamInfos[allyTeamID]
allyTeamInfo.teams[unitTeamID].unitCount = allyTeamInfo.teams[unitTeamID].unitCount + 1
allyTeamInfo.unitCount = allyTeamInfo.unitCount + 1
allyTeamInfos[allyTeamID] = allyTeamInfo
end
gadget.UnitGiven = gadget.UnitCreated
gadget.UnitCaptured = gadget.UnitCreated
function gadget:UnitDestroyed(unitID, unitDefID, unitTeamID)
local allyTeamID = teamToAllyTeam[unitTeamID]
local allyTeamInfo = allyTeamInfos[allyTeamID]
local teamUnitCount = allyTeamInfo.teams[unitTeamID].unitCount -1
local allyTeamUnitCount = allyTeamInfo.unitCount - 1
allyTeamInfo.teams[unitTeamID].unitCount = teamUnitCount
allyTeamInfo.unitCount = allyTeamUnitCount
allyTeamInfos[allyTeamID] = allyTeamInfo
if allyTeamInfo.isGaia and ignoreGaia == 1 then
return
end
if teamDeathMode == "teamzerounits" and teamUnitCount == 0 then
KillTeam(unitTeamID)
elseif teamDeathMode == "allyzerounits" and allyTeamUnitCount == 0 then
for teamID in pairs(allyTeamInfo.teams) do
KillTeam(teamID)
end
end
end
gadget.UnitTaken = gadget.UnitDestroyed
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