MapDefinition Struct Reference

MapDefinition structure which contains data for large level background.
It's optimized to encode large map using 128x128 block chunk (block chunk are organized in metatile). More...

#include <map.h>

Public Attributes
u16	w
u16	h
u16	hp
u16	compression
u16	numMetaTile
u16	numBlock
u16 *	metaTiles
void *	blocks
void *	blockIndexes
u16 *	blockRowOffsets

Detailed Description

MapDefinition structure which contains data for large level background.
It's optimized to encode large map using 128x128 block chunk (block chunk are organized in metatile).

Parameters

w	map width in block (128x128 pixels block).
h	map height in block (128x128 pixels block).
hp	map height in block (128x128 pixels block) removing duplicated rows
compression	b0-b3=compression type for metaTiles b4-b7=compression for blocks data b8-b11=compression for blockIndexes data Accepted values: COMPRESSION_NONE COMPRESSION_APLIB COMPRESSION_LZ4W
numMetaTile	number of MetaTile
numBlock	number of Block (128x128 pixels chunk)
metaTiles	metatiles definition, each metatile is encoded as 2x2 tiles block: b15: priority b14-b13: palette b12: vflip b11: hflip b10-b0: tile index (from tileset)
blocks	blocks definition, each block is encoded as 8x8 metatiles: if numMetaTile <= 256 --> 8 bit index for metaTile else --> 16 bit index for metaTile
blockIndexes	block index array (referencing blocks) for the w * hp sized map if numBlock <= 256 --> 8 bit index for block else --> 16 bit index for block
blockRowOffsets	block row offsets used internally for fast retrieval of block data (index = blockIndexes[blockRowOffsets[y] + x])

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The documentation for this struct was generated from the following file:

• map.h