VNDS .scr file format:

for any clarification on the usage of these, look at a .scr from another VN

bgload:
    usage: bgload file [fadetime]
    looks in background/ for the image and draws it as the background
    control length of fade in frames with fadetime (default 16)
    
setimg:
    usage: setimg file x y
    looks in foreground/ for the image and draws it at the point (x,y)

sound:
    usage: sound file times
    looks in sound/ for the file, loads it into memory(don`t do this with 
        anything over a meg in size) and plays it X times. -1 for infinite
        looping.
    sound is expected to be in 22050Hz 1 channel raw imadpcm format.
    if file is ~, it stops any currently playing sound.
    
music:
    usage: music file
    looks in sound/ for the file, 
    
    music is expected to be in mp3 format
    if file is ~, it stops the music.

text:
    usage: text string
    displays text to the screen.
    
    Prepending string with @ makes it not require clicking to advance
    if string is ~, it`ll make a blank line
    if string is !, it`ll make a blank line and require clicking to advance
    
choice:
    usage: choice option1|option2|etc...
    displays choices on the screen
    
    when a choice is clicked, selected is set to the value of what was
        selected, starting at 1.
    use if selected == 1, etc to go off what was selected.

setvar/gsetvar:
    usage: setvar modifier value
    sets a variable
    
    modifier: =, +. -
    setvar puts values into local save memory, to be kept in normal save files
        for things like character flags and such
    gsetvar sets variables in global.sav
        for things like cleared path flags
    prefix a variable with $ to use it in other commands: `text var is $var`
        
if/fi:
    usage: 
        if x == 1
            commands
        fi
    conditional jump
    
    if true, it keeps reading. if false, it skips till it encounters a fi
    Note: left operand must be a variable, right may be either
        This is due to either redoing every script to put $ in front of the
            variables, or just making left not default to string if the
            variable doesnt exist.
    
jump:
    usage: jump file.scr [label]
    looks in script/ for the .scr and starts reading off that.
    if label is specified, jumps to that label in the script

delay:
    usage: delay X
    X being number of frames to hold, DS runs at 60 frames per second.

random:
    usage: random var low high
    set var to a number between low and high (inclusive)

label/goto:
    usage:
        label name
        goto name
    
    a goto command will search the current script for a label with the same 
        name and start the script from that part

Notes:
    titlescreen:
        icon: 32x32 .png
        thumbnail 100x75 .png
        
    To place a variable in a command, prefix the variable name with $ and it
        will directly replace it. Strings only

Conversion:
    Images:
        Sprites should be in png format and backgrounds as jpg or png. Alpha 
            transparency is supported for sprites. 
        To avoid color banding, decrease the color depth of the images to 
            5bits/pixel and use dithering (png doesn't support 5bits/pixel, so
            store them in 8bits/pixel instead).
        For background images you should also make sure that they're 256x192 
            in size.

    Sound:
        Sound effects should be encoded in aac.

        use sound conversion tool included with vnds