Map reading?

[Lua Hal]

In my games so far, I've always read the map from a text file, but I've found as the maps get bigger it is more difficult to understand what the map will look like, so alternatively I'd like to read from an image file, where different colored pixels stand for a tile.
Unfortunately, I have no idea to do this.

For my skill level, how would I convert an image like this:

(255,0,0)(0,0,255)
(255,0,255)(0,255,0)

into a table like this:

table["2x1"] would return:

{0,0,255}

In other words, a table of tables representing the RGB of each pixel in a picture file ( I would be willing to work with any file type ) Accessible via a coordinate string.

Any help is appreciated.

[TechnoCat]

Have you looked at love.image.newImageData and ImageData:getPixel yet? I think you should.

[Lua Hal]

Have you looked at love.image.newImageData and ImageData:getPixel yet? I think you should.

Second link is broken, and I don't see the relevance of the first one, could you put it into context?

[vrld]

Did you read it?

[TechnoCat]

Have you looked at love.image.newImageData and ImageData:getPixel yet? I think you should.

Second link is broken, and I don't see the relevance of the first one, could you put it into context?

Well, uh. Load an imagefile into ImageData and iterate over the pixels to return the color values at each pixel?

Code: Select all

image = love.image.newImageData("awesomemap.png")

--I wonder what kind of tile is at (1,2)? (0,0) being the upper-left.
local r, g, b, a = image:getPixel(1,2)
1_2_tile = {r,g,b,a}

[Lua Hal]

Did you read it?

Oops, I found some relevant information in
ImageData:getPixel