python joy_PNGtoTGA.py [INPUT_FOLDER] [OUTPUT_FOLDER] [OPTIONS...]

Description:
Convert image files (PNG, JPG, JPEG, PCX, TGA) in INPUT_FOLDER to TGA format. By default, saves output to OUTPUT_FOLDER or, if unspecified, to INPUT_FOLDER. Supports optional alpha channel, compression, brightness darkening, and image scaling. Also supports combining images with a separate alpha mask ending in _a or _alpha into one TGA [ex.: door.png + door_a.png = door.tga].

Positional Arguments:

    INPUT_FOLDER (default: current directory)
    Folder containing images to convert.

    OUTPUT_FOLDER (default: same as input folder)
    Folder to save converted TGA files.

Options:

    --bit-depth {24,32}
    Specify bit depth (24=RGB, 32=RGBA). Default: 24

    --no-alpha
    Exclude alpha channel even if present.

    --no-compression
    Disable TGA compression.

    --darken
    Darken output images by 50%.

    --scale SCALE
    Resize images by a factor (e.g., 2=double size). Default: 1

    --scaletype {bilinear,bicubic,nearest}
    Interpolation method for scaling. Default: bilinear

    --allowuppercase
    Preserve uppercase letters in output filenames.

    --allowspace
    Preserve spaces in output filenames.

    --kingpin
    Apply Kingpin preset (24-bit non-alpha, 32-bit alpha, compression, darkening on, no uppercase/spaces).