recursive shadowcasting FOV in ascii rogue

[meoiswa]

Suggestion: not having pre-defined fields of view (45 degrees), but rather generate them by following the imaginary line between the current position and the corner of the wall that is blocking the view

[pch]

algoritm is fixed -:)
updated download in first post.

keep pressing Enter until the room with enough pillars will be generated
number of pillars can be changed by 9/0 - anyway this is the maximum number of columns per room.

You should load maps from a txt file, that would be awesome ;P

i'll do that. its going to work like this: if there is a file called mapXXX.txt - load it, if not - generate random map.

Suggestion: not having pre-defined fields of view (45 degrees), but rather generate them by following the imaginary line between the current position and the corner of the wall that is blocking the view

I don't quite understand - sorry it's new to me - but anyway I think that is already happening here.
I followed that tut:
http://roguebasin.roguelikedevelopment. ... dowcasting

the next step is to tune it a little with this:
http://roguebasin.roguelikedevelopment. ... dowcasting

[coffee]

Nice work, and thanks. Now with pillars far away we can check angle "streching". Looks good. Are you still perfecting it or you advanced for things like light source?

[pch]

first i will try "upgrading" it with a more acurate slop/visibility calculations.
Lights will come shortly.

Just have one question, not about fov but about love and draw/update functions:

is there a way to force love not to redraw screen so often?
I'd like it to be redraw only when I press the movement key - since all calculations are done only once and only after arrow is pressed.

I,m asking because everytime I start my program then the fan in my computer starts as well and after a short time it gets quite loud.

[Nixola]

You'll have to overwrite love.run, maybe like this (not tested), and call love.graphics.clear() and love.draw() in love.keypressed:

Code: Select all

function love.run()

    if love.load then love.load(arg) end

    local dt = 0

    -- Main loop time.
    while true do
        if love.timer then
            love.timer.step()
            dt = love.timer.getDelta()
        end
        if love.update then love.update(dt) end -- will pass 0 if love.timer is disabled
--[[   if love.graphics then
            love.graphics.clear()
            if love.draw then love.draw() end
        end]] --Simply delete this line and the 3 above
--Rest of love.run, don't delete this!
end

function love.keypressed(key, unicode)
    --your stuff
    love.graphics.clear()
    love.draw()
end

[Robin]

Don't forget to call love.graphics.present after calling love.draw(), otherwise nothing will be shown.

[Nixola]

I didn't know that ^^'
If you call it after love.draw you don't need to call it in love.run, right?

[pch]

thanks.

I put that code and transfered love.graphics part into love.keypressed()
It redraws the screen continously but like 50% slower - so you can see horizontal border passing from top to bottom and it draws it in two different positions (it depends which arrow was pressed last) - for example left/right then it draws everything once and the next redraw shifts the image to the left/right and then back.

But I'll think on that since I have already a starting point.


ETA:
ok, my fault.
I forgot to remove

Code: Select all

if love.graphics then love.graphics.present() end

from the end of love.run() - so it was duplicated.
Now it works.
Thanks

[meoiswa]

You did exactly what I suggested Have shadows work with any angle and not just 45. It's looking very nice already!

[tsturzl]

IMO, everything it the shadow should be hidden, so enemies, objects, etc. Maybe even walls? Just omit any characters in the shadow area, perhaps.