Description of each field of an entry is as follows:
Identifies the sprite's role.
The base resolution (320 or 640), it will use 320 on resolutions lower than 640x480 and 640 on that resolution and higher.
The SPR file to load.
The offset of this sprite object into the SPR file in the horizontal X axis.
The offset of this sprite object into the SPR file in the vertical Y axis.
The width of the sprite object.
The height of the sprite object.
Comments start with the double slash (//). You can put a comment at the start of a line, or at the end of a full sprite entry. Do not comment out a part of a sprite entry and leave it incomplete.
A sprite entry is 1 line. You cannot split it across multiple lines.
Each field in the sprite entry is separated by one or more whitespace. A whitespace means any of a space or tab character. Please use only one type to separate a field (i.e. not mixing tabs and spaces together).
Make sure a sprite object's entry fits in the referenced SPR file, i.e. offset_x + size_w <= sprfile_w and offset_y + size_h <= sprfile_h.
Also make sure the sprite entry has the same number of fields as shown in the table (7), and placed in the correct order.
An empty line, or a line comment, does not count towards num_of_entries.