Asset file structure

Description	Length
Assets number	unsigned int (32 bits)
...
Asset name	const char [] (variable length, ends with '\00')
Asset start index	unsigned int (32 bits)
...
Asset data	depend on assets content and number

Image (.png)

Convert RGBA to RGB with #FF00FF as the transparent color. If alpha null then the color of the pixel will be replaced with this.

Image data is in RGB 565.

Description	Length
Image width	unsigned int (32 bits)
Image height	unsigned int (32 bits)
Image data	depend on image size, pixel short (16 bits)

Description	Length
Map width	unsigned int (32 bits)
Map height	unsigned int (32 bits)
Map background layer 1 data	depend on map size, tile short (16 bits)
Map background layer 2 data	depend on map size, tile short (16 bits)
Map background layer 3 data	depend on map size, tile short (16 bits)
Map foreground layer data	depend on map size, tile short (16 bits)
Map hitboxes data	depend on map size, tile unsigned char (8 bits)
Entities number	unsigned int (32 bits)
...
Entity ID	unsigned int (32 bits)
Entity components number	unsigned int (32 bits)
...
Component type	int (32 bits)
...
Component attributes	depend on attribute type
int	int (32 bits)
float	float (32 bits)
bool	bool (8 bits)
str	const char [] (variable length, ends with '\00')
...
...