LÖVE

kikito wrote:Hi there,

The error you are having happens because the "item" inside the filter function does not "survive" after the function is executed. You can't use it to remove it. Also, you forgot to include the kind on the enemies.

Here's what I would do:

Code: Select all

enemies = {}
-- changed this function to store enemies as keys instead of values in the enemies table (easier to remove later)
-- also, added the missing 'kind' attribute
function enemy_create(x, y, width, height)
  local enemy = {x=x,y=y,w = width, h = height, kind = 'Enemy'}
  enemies[enemy] = true
end
...

-- You can put this as a local inside the player.lua file; no need to declare it inside the player update loop
local collideWithEnemy = function(item) return item.kind == 'Enemy' end

...

local future_l, future_t = player.x + dx, player.y + dy

local cols, len = world:check(player, future_l, future_t, collideWithEnemy)
if len > 0 then
  local enemy = cols[1].other
  world:remove(enemy) -- removes enemy from the world
  enemies[enemy] = nil -- removes enemy from the list of enemies
end

Using the enemies as keys instead of as values in the enemies table is simpler because removing them can be done more easily (otherwise you would need to iterate over the enemies table with a loop every time you wanted to remove an enemy).

Regards!

function enemy_create(x, y, width, height)
	local enemy = {x=x,y=y,w = width, h = height, kind = 'Enemy'}
  	enemies[enemy] = true
  	world:add(enemy, x,y,width,height)
end

kikito wrote:Yes, you could add the enemy to the world there, or you could return the enemy and add it to the world in the place where you call to enemy_create.

kikito wrote:Yes, that is one way to fix that, but in bump there is explicit code to handle the "getting stuck in corners" thing. I worked on it for a year :/ . You telling me that it happens in your computer is ... disturbing. It should not.

4aiman wrote:However, after updating that project to a newest bump, the bug cease to happen.