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- roads helper macros

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This commit is contained in:
Ilya Shurumov 2020-09-22 02:31:02 +06:00
parent 6a9eae544d
commit 051e820f18
1 changed files with 10 additions and 0 deletions
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10
src_rebuild/GAME/C/DR2ROADS.H
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@ -13,6 +13,16 @@
#define IS_SINGLE_LANE(rdcv) ((*(uint*)&(rdcv)->NumLanes & 0xFFFF) == 0xFF01)
// those macros can be applied to straights and junctions
#define ROAD_LANES_COUNT(rd) ((u_char)rd->NumLanes & 0xF) // lane count
#define ROAD_WIDTH_IN_LANES(rd) (ROAD_LANES_COUNT(rd) * 2) // width in lanes
#define ROAD_AI_LANE(rd, lane) ((u_char)rd->AILanes >> (lane / 2) & 1U) // lane AI driveable flag
#define ROAD_IS_FLAG1(rd) ((rd->NumLanes & 0x40) > 0) // flag 1 - parking allowed?
#define ROAD_IS_FLAG2(rd) ((rd->NumLanes & 0x80) > 0) // flag 2 - spawning allowed?
#define ROAD_LANE_DIR(rd, lane) ((u_char)rd->LaneDirs >> (lane / 2) & 1U) // direction bit
#define ROAD_SPEED_LIMIT(rd) (((u_char)rd->NumLanes >> 4) & 3) // speed limit id
extern ROAD_MAP_LUMP_DATA roadMapLumpData;
extern int NumTempJunctions;