
These are the formats accepted (and generated) by the Egg Builder program.

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EXTRACTING / ADDING AUDIO FILES
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Audio files must be saved as raw 8 bit signed data with the extension SND. Any file added to an EGG will be treated as such. All sounds are played at a frequency of 10000 Hz. The maximum length of an audio file is 65535 bytes. Longer sounds will be trimmed (you'll be told if this happens).

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EXTRACTING / ADDING GRAPHICS FILES
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In order to add an image into an EGG it must be saved as a 256 colour (8 bit) uncompressed TGA file. Different images can use different numbers of colours - as a general rule, full screen graphics can use 0-254 (not 255), tiled backgrounds can use colours 0-15 and level tile sets can use 0-31. For more information, see the help topic "Palette and size limitations for TGA files".

When extracting (or viewing) a "GFX - Solid object" slice, the wrong palette will be used as no palette information is stored with these images in a data file.

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EXTRACTING / ADDING TEXT FILES
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Text files can be edited or created in notepad or the MS-DOS edit program. For pages of text displayed on screen, such as startup text and Read Me! documents, a number at the start of a line will be interpreted as the colour to display that line. Therefore, "Hello!" will be displayed in the current active colour, "2Hello!" will display "Hello!" in colour 2 and (watch out for this one) the line "10 shareware levels" will cause the program to display "0 shareware levels" in colour 1.

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EXTRACTING / ADDING ROLLING DEMOS
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Rolling demos are extracted as text files, so that they can be edited manually in a text editor. When a demo is added to an EGG it is (re)compiled. For more information see the help topic "File format for rolling demos".

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EXTRACTING / ADDING SPRITES, ANIMATIONS AND LEVELS
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These files are extracted raw from a data file, and any file added to a data file as any of these data types will be added in a similar fashion - stored, byte for byte, exactly the same as the extracted file. Sprite files (.DUC) can be edited using the Ducks Sprite Editor (EDITDUC.EXE) - when it's written. Levels can be edited using the Ducks Level Editor (EDITLEV.EXE). Animations? Who knows. I'll have to do some kind of editor, I guess. Not looking forward to that, I can tell you.

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EXTRACTING / ADDING ID SLICES
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Not allowed. You can change everything stored in these slices using the ID button below the EGG contents display.

