LÖVE

MaxGamz wrote: ↑Sat Sep 30, 2023 3:37 am I'm having trouble understanding metatables and created multiple instances of the same object with them. For example spawning an enemy or collectables like coins. Is there an easier method of doing so in lua?

enemies={}
function create_enemies(no)
    for i = 1, #no do
       enemies[i] = {
            type='jumping_carp',
            health=10
        }
    end
end

BrotSagtMist wrote: ↑Sat Sep 30, 2023 6:03 am Metatable spawing works like this:

Code: Select all

base={a=1,b=2,c=3,d=4}
meta={__index=function(tab,name) return base[name] end}

object1=setmetatable({a=99,c=5656},meta)
object2=setmetatable({l=0,d=1},meta)
object3=setmetatable({c="nope"},meta)

for k,v in pairs(base) do
 print("key:",k,"value:",v)
 print(object1[k]) 
 print(object2[k]) 
 print(object3[k]) 
end

dusoft wrote: ↑Sat Sep 30, 2023 8:28 am

MaxGamz wrote: ↑Sat Sep 30, 2023 3:37 am I'm having trouble understanding metatables and created multiple instances of the same object with them. For example spawning an enemy or collectables like coins. Is there an easier method of doing so in lua?

Just forget metatables and use arrays / objects?

Code: Select all

enemies={}
function create_enemies(no)
    for i = 1, #no do
       enemies[i] = {
            type='jumping_carp',
            health=10
        }
    end
end

You will have to loop over enemies object in both update() and draw().