mapdata.c File Reference

Map terrain: the height curve of each cell kind and the world map's terrain behaviour. More...

Go to the source code of this file.

Variables
const TerrainHeightFn	gMap_TerrainHeightFunctions [16]
	Terrain height functions, chosen by the low four bits of a cell's first collision byte and called with (the remaining samples, x within the cell, y within the cell).
const u8	gWorldMap_TerrainBehaviorTable [48]
	World map terrain behaviour, indexed by the collision value plus 0x10 when the block word's top bit is set, or plus 0x20 (whatever that bit) for terrain kind 21.
const s8	gWorldMap_DirectionOffsets [8][2]
	The eight compass directions as (x, y) offsets of radius 40.
const u32	gWorldMap_UnitScale [2]
	Two 1.0s (Q16).

Detailed Description

Map terrain: the height curve of each cell kind and the world map's terrain behaviour.

Definition in file mapdata.c.

Variable Documentation

gMap_TerrainHeightFunctions

const TerrainHeightFn gMap_TerrainHeightFunctions[16]

Initial value:

                                                  = {
    Curve_GetFirstSampleA,
    Curve_LerpTwoSamples,
    Curve_LerpTwoSamplesB,
    Curve_StepAtSummedPosition,
    Curve_StepAtDifferencePosition,
    Curve_LerpThreeSamplesByRatio,
    Curve_LerpThreeSamplesAtDifference,
    Curve_LerpTwoSamplesByTable,
    Curve_StepAtHalf,
    Curve_StepAtHalfB,
    Curve_LerpThreeSamplesAtHalf,
    Curve_LerpThreeSamplesAtHalfB,
    Curve_LookupSampleByTable,
    Curve_LookupSampleByTableReversed,
    Curve_GetFirstSampleB,
    Curve_GetFirstSampleC,
}

Terrain height functions, chosen by the low four bits of a cell's first collision byte and called with (the remaining samples, x within the cell, y within the cell).

Each reads only the arguments it needs. Read by Map_GetTerrainHeight and Map_CheckObjectStep (terrain.c).

Definition at line 14 of file mapdata.c.

Referenced by Map_CheckObjectStep(), and Map_GetTerrainHeight().

gWorldMap_TerrainBehaviorTable

const u8 gWorldMap_TerrainBehaviorTable[48]

Initial value:

                                        = {
    0, 0, 0, 0, 0, 1, 7, 1, 1, 2, 1, 1, 1, 1, 0, 0,
    0, 0, 0, 0, 0, 4, 7, 1, 1, 6, 1, 1, 1, 1, 0, 0, 
    0, 0, 0, 0, 0, 5, 5, 5, 5, 6, 5, 5, 5, 5, 0, 0, 
}

World map terrain behaviour, indexed by the collision value plus 0x10 when the block word's top bit is set, or plus 0x20 (whatever that bit) for terrain kind 21.

Read only by GetWorldMapTerrainBehavior.

Definition at line 37 of file mapdata.c.

Referenced by GetWorldMapTerrainBehavior().

gWorldMap_DirectionOffsets

const s8 gWorldMap_DirectionOffsets[8][2]

Initial value:

                                    = {
    {0, -40}, {28, -28}, {40, 0},  {28, 28},
    {0, 40},  {-28, 28}, {-40, 0}, {-28, -28},
}

The eight compass directions as (x, y) offsets of radius 40.

No code in The Broken Seal names it.

Definition at line 46 of file mapdata.c.

gWorldMap_UnitScale

const u32 gWorldMap_UnitScale[2]

Initial value:

                              = {
    0x10000,
    0x10000,
}

Two 1.0s (Q16).

No code in The Broken Seal names it; The Lost Age's battle effects read its copy as a unit scale.

Definition at line 53 of file mapdata.c.