-----------------------------------

RyGuy-Anime

Tue Jan 24, 2012 3:20 pm


SPRITE Problems in my game, freed sprite problem.

-----------------------------------

What is it you are trying to achieve?
A "Blast Attack to go across the screen.. this is my first attempt at a game btw

What is the problem you are having?
it says i freed my sprite but i cannot find any lines where i've done it

Describe what you have tried to solve this problem
Anything i could think of 

Post any relevant code (You may choose to attach the file instead of posting the code if it is too long)
process shoot
    loop
        location1 := locationx + 7
        location2 := locationy + 10
        %Sprite.SetPosition (lasersprite, location1, location2, false)      %sets location vairables)
        %Sprite.SetHeight (lasersprite, 3)
        if blast = true then
            if direction = 1 then
                Sprite.Show (lasersprite)
                loop
                    location1 := location1 - 7
                    Sprite.Show (lasersprite)
                    if location1 = a then
                        if location2 + 10 > b and location2 - 10 < b
                                then
                            hit := true
                            exit
                        end if
                    elsif location1 < -20 then
                        exit
                    end if

                end loop
            else
                Sprite.Show (lasersprite)
                loop
                    location1 := location1 + 7
                    Sprite.Show (lasersprite)
                    if room = 3 and location1 = a then
                        if location2 + 10 > b and location2 - 10 < b
                                then
                            hit := true
                            exit
                        end if
                    elsif location1 > 340 then
                        exit
                    end if
                end loop
            end if
        end if
        if ended = true then
            %Sprite.Hide (lasersprite)
            exit
        end if
    end loop
end shoot






Please specify what version of Turing you are using
4.1.1


-----------------------------------

Dreadnought

Tue Jan 24, 2012 3:57 pm


Re: SPRITE Problems in my game, freed sprite problem.

-----------------------------------

When you create a sprite it is associated with the window that was active at the time of its creation.

You may not realize it, but while you are loading sprites and pictures at the beginning of your program, the default window (window Id -1 I think) is considered active for Turing (even if you can't see it).

When you call the line
setscreen ("graphics:400;330")
This creates a window that is different from the standard Turing window. So Turing creates a new window and closes the old one (even if you couldn't see it). And with closing that window all the sprites that were associated with it are freed.

A way of fixing this might be to place the setscreen statement earlier in the program or creating sprites later.

Hope this helps.


-----------------------------------

RyGuy-Anime

Tue Jan 24, 2012 7:05 pm


Re: SPRITE Problems in my game, freed sprite problem.

-----------------------------------

Thanks a ton :D  although i find it weird since the rest of the sprites worked fine above the setscreen... I'd give you bits if i knew how :P. When i finish the beta version of the game i'll post it if anyone is interested, the only thing i need left is to get the blast attack moving...