Enemy/AI system {Still need help D:}

[MP6767]

I've tried many things to make sprites move across the gamefield and attack, but they don't even show up. Could anyone show me an example?

EDIT 12/23/11: Still need help: When using

Code: Select all

function zombieType:update(dt)

  for i, zombieType in pairs(zombieType) do
    zombieType.x = math.random(0,32)
    zombieType.y = math.random(0,32)
  end
  
end

it just gives a syntax error saying "attempt to index local zombieType (A function value).

Anyone have any ideas on how to fix it?

[Nixola]

Can you show us your "many things", so that we can correct you?

[MP6767]

Alright, here's the code for a zombie that I used, from another thread...

Code: Select all

function zombieType:create(v)
  local instance = {}
  setmetatable(instance, {__index = self})
  instance:reset(v)
  return instance
end
function zombieType:reset(v)
  v = v or {}
  self.x = v.x or 300
  self.y = v.y or 500
  self.speed = v.speed or 100
  self.color = v.color or { 255, 255, 255 }
  self.health = v.health or 10
  self.pic = v.img or zombImg
  self.reach = v.reach or 55
  self.damage = v.damage or 2
end
function zombieType:update(dt)
  
end
function zombieType:draw()
  love.graphics.draw(zomb, math.random(350), math.random(400), 0, 4, 4)
end

I've also tried using math.random to pick a place for them to spawn, pick a place for them to move to, and to dictate the amount of damage they deal, but that just gave me a bunch of syntax errors.

[tentus]

Without your whole code we can't help you much, but offhand I will point out that you are drawing your zombie at a random location: since you choose the position again for each frame, it may just be that you can't see your zombie because they move to a new location every single frame.

[MP6767]

Without your whole code we can't help you much, but offhand I will point out that you are drawing your zombie at a random location: since you choose the position again for each frame, it may just be that you can't see your zombie because they move to a new location every single frame.

[Robin]

You draw each zombie on a random location:

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  love.graphics.draw(zomb, math.random(350), math.random(400), 0, 4, 4)

That should be

Code: Select all

  love.graphics.draw(zomb, self.x, self.y, 0, 4, 4)

[MP6767]

Still getting an error on line 125, line 125 contains what you told me to put in.

Code: Select all

function zombieType:draw()
  love.graphics.draw(zomb, self.x, self.y, 0, 4, 4)
end

[Robin]

What is the error?

[MP6767]

Incorrect parameter type: expected userdata

[Robin]

That's more like it.

You made a mistake with the variable name. You used zomb, while it should be zombie.