Lime Tutorial 13 Moving a Map Not Working

Lime
#1

I’ve been playing around with Tutorial 13 and I just can’t get it to work.  I have tried using the version of Lime you can download from here:

https://github.com/OutlawGameTools/Lime2DTileEngine/zipball/master

and the one you can download from here:

https://github.com/OutlawGameTools/Lime2DTileEngine/archive/master.zip

They both seem to be Lime Version 3.5

This is the code from the tutorial page that just won’t work:

[lua]lime = require(“lime.lime”)

local map = lime.loadMap(“tutorial20.tmx”)
local physical = lime.buildPhysical(map)
local visual = lime.createVisual(map)

local onTap = function(event)
local screenPosition = { x = event.x, y = event.y }
local worldPosition = lime.utils.screenToWorldPosition(map, screenPosition)
– Instantly jump to the new position
map:setPosition(worldPosition.x, worldPosition.y)
– Fade out, set position and then fade back in again
– map:fadeToPosition(worldPosition.x, worldPosition.y, 1000)
– Slide to the new position
– map:slideToPosition(worldPosition.x, worldPosition.y, 2000)
end
Runtime:addEventListener(“tap”, onTap)[/lua]

I’ve attached a screenshot of the error I get.  The indication of a problem occurs here:

[lua]

function Utils:screenToWorldPosition(map, position)

    local _map = map

    local _position = position

    

    local newPosition = {}

    

    if _map.world then

[/lua]

And it appears that _map.world is nil.   I’ve tried to print out map by converting it from a table into a series of formatted strings and it doesn’t seem like there is a “world” attribute anywhere in it.   I could use a fresh set of eyes or a more experienced opinion on this one.  

#2

By the way, the touch part of the tutorial works fine:

[lua]

local onTouch = function(event)

    map:drag(event)

end

Runtime:addEventListener(“touch”, onTouch)

[/lua]

#3

Hi Michael

I had the same problem. I fix it changing this line

local worldPosition = lime.utils.screenToWorldPosition(map, screenPosition)

to local worldPosition = lime.utils:screenToWorldPosition(map, screenPosition).

But my problem is the mp does’nt load correctly. If I drag the map It doesn’t show the next Tiles of the map. It only shows the blue backgroud.

Yo have the same problem?

#4

marktamanosantos I love you!   I spent hours and days working on this thing.  Your fix worked like a charm.  Unfortunately, I am not sure why you are having the problem with the blue background.  You might want to try a different map, maybe one that’s smaller and simpler?   When I try to drag the map from tutorial 20, it works fine for me.   Let me know if there is something you’d like me to try.

#5

By the way, the touch part of the tutorial works fine:

[lua]

local onTouch = function(event)

    map:drag(event)

end

Runtime:addEventListener(“touch”, onTouch)

[/lua]

#6

Hi Michael

I had the same problem. I fix it changing this line

local worldPosition = lime.utils.screenToWorldPosition(map, screenPosition)

to local worldPosition = lime.utils:screenToWorldPosition(map, screenPosition).

But my problem is the mp does’nt load correctly. If I drag the map It doesn’t show the next Tiles of the map. It only shows the blue backgroud.

Yo have the same problem?

#7

marktamanosantos I love you!   I spent hours and days working on this thing.  Your fix worked like a charm.  Unfortunately, I am not sure why you are having the problem with the blue background.  You might want to try a different map, maybe one that’s smaller and simpler?   When I try to drag the map from tutorial 20, it works fine for me.   Let me know if there is something you’d like me to try.