Solved GlobalEvent, attempt to spawn with check

[silveralol]

hello, I'm trying make a script to create a random boss in some position, I need check the bosses names to not respawn again the bosses, I need make that when is in the table run the code again to try spawn another, while spawn a different boss
here the script:

local config = {
    [1] = {bossName = "Name", bossPosition = Position()}
}
Bosses = {}
function onThink(interval, lastExecution, thinkInterval)
    math.randomseed(os.time())
    local rand = config[math.random(#config)]
    local name = rand.bossName
    if isInArray(Bosses, name) then
        print('>> attempt to spawn '..name..' again.')
        return true
    end
    table.insert(Bosses, name)
    local monster = Game.createMonster(rand.bossName, rand.bossPosition)
    if not monster then
        print('>> Failed to spawn '..name..' is missing map.')
        return true
    end   
    print('>> The boss: ' ..monster:getName() .. ' spawn.')
    return true
end

of course the table "config" have more than 1 member

 

[Codex NG]

hello, I'm trying make a script to create a random boss in some position, I need check the bosses names to not respawn again the bosses, I need make that when is in the table run the code again to try spawn another, while spawn a different boss
here the script:

local config = {
    [1] = {bossName = "Name", bossPosition = Position()}
}
Bosses = {}
function onThink(interval, lastExecution, thinkInterval)
    math.randomseed(os.time())
    local rand = config[math.random(#config)]
    local name = rand.bossName
    if isInArray(Bosses, name) then
        print('>> attempt to spawn '..name..' again.')
        return true
    end
    table.insert(Bosses, name)
    local monster = Game.createMonster(rand.bossName, rand.bossPosition)
    if not monster then
        print('>> Failed to spawn '..name..' is missing map.')
        return true
    end
    print('>> The boss: ' ..monster:getName() .. ' spawn.')
    return true
end

of course the table "config" have more than 1 member

Recursion is your friend, however this can/will result in an infinite loop

local c = {
    [1] = {bossName = "Name", bossPosition = Position()}
}
Bosses = {}

function spawnBoss(t)
    math.randomseed(os.time())
    local creature = t[math.random(#t)]
    if isInArray(Bosses, creature.bossName) then
        print('>> attempt to spawn '..name..' again.')
        spawnBoss(t) -- recursive, call again if name exist
    end
    -- update the global Bosses table with the creature name if it does not exist
    table.insert(Bosses, creature.bossName)
    -- return the local table's return value
    return creature
end

function onThink(interval, lastExecution, thinkInterval)
    local rand = spawnBoss(c)
    local monster = Game.createMonster(rand.bossName, rand.bossPosition)
    if not monster then
        print('>> Failed to spawn '..name..' is missing map.')
        return true
    end
    print('>> The boss: ' ..monster:getName() .. ' spawn.')
    return true
end

 

[Summ]

If resurcion causes an infinite loop that is because you made a mistake..

@silveralol
Set math.randomseed in global.lua. You should not set a random seed every time you call a function.

local bosses = {
    {bossName = "Boss 1", bossPosition = Position()}
    {bossName = "Boss 2", bossPosition = Position()}
}
Bosses = {}

function spawnBoss()
    if #Bosses >= #bosses then
        for i = #Bosses, 1, -1 do
            Bosses[i] = nil
        end
    end

    local creature = bosses[math.random(#bosses)]
    if isInArray(Bosses, creature.bossName) then
        -- print('>> attempt to spawn '..creature.bossName..' again.')
        creature = spawnBoss() -- recursive, call again if name exist
    else
        -- update the global Bosses table with the creature name if it does not exist
        table.insert(Bosses, creature.bossName)
    end
    -- return the local table's return value
    return creature
end

function onThink(interval, lastExecution, thinkInterval)
    local rand = spawnBoss()
    local monster = Game.createMonster(rand.bossName, rand.bossPosition)
    if not monster then
        print('>> Failed to spawn '..rand.bossName..'.')
        return true
    end
    print('>> The boss: ' ..monster:getName() .. ' spawn.')
    return true
end

 

[Codex NG]

If resurcion causes an infinite loop that is because you made a mistake..

Indeed it is and I was aware of that, this is why I said it can/will result in an infinite loop, I just woke up and hadn't had my coffee yet
I was just providing an example not a solution

 

[silveralol]

If resurcion causes an infinite loop that is because you made a mistake..

@silveralol
Set math.randomseed in global.lua. You should not set a random seed every time you call a function.

local bosses = {
    {bossName = "Boss 1", bossPosition = Position()}
    {bossName = "Boss 2", bossPosition = Position()}
}
Bosses = {}

function spawnBoss()
    if #Bosses >= #bosses then
        for i = #Bosses, 1, -1 do
            Bosses[i] = nil
        end
    end

    local creature = bosses[math.random(#bosses)]
    if isInArray(Bosses, creature.bossName) then
        -- print('>> attempt to spawn '..creature.bossName..' again.')
        creature = spawnBoss() -- recursive, call again if name exist
    else
        -- update the global Bosses table with the creature name if it does not exist
        table.insert(Bosses, creature.bossName)
    end
    -- return the local table's return value
    return creature
end

function onThink(interval, lastExecution, thinkInterval)
    local rand = spawnBoss()
    local monster = Game.createMonster(rand.bossName, rand.bossPosition)
    if not monster then
        print('>> Failed to spawn '..rand.bossName..'.')
        return true
    end
    print('>> The boss: ' ..monster:getName() .. ' spawn.')
    return true
end

I use the math.randomseed to make it always randon, if I remove it, always will be the same boss, I'll test it, thank you, @Codex NG and @Summ

edit: oh god! thank you, Mans, if resolve my problem!
I have a little question, seems stupid but I don't know...
can explain this line?

for i = #Bosses, 1, -1 do

the "-1" ?

 

[Summ]

That's the loops step interval of the loop, default step is 1.
When iterating from a higher value to 1 you need to decrease your loop variable.