From 89fd12692f1999b1535d70589bab7366a9eee0f3 Mon Sep 17 00:00:00 2001 From: tron Date: Thu, 16 Dec 2004 12:30:13 +0000 Subject: (svn r1130) Add helper functions to query map size --- map.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'map.h') diff --git a/map.h b/map.h index 8694ff277..ad21f677a 100644 --- a/map.h +++ b/map.h @@ -18,4 +18,16 @@ extern byte _map_owner[TILES_X * TILES_Y]; extern byte _map2[TILES_X * TILES_Y]; extern byte _map_extra_bits[TILES_X * TILES_Y / 4]; +// binary logarithm of the map size, try to avoid using this one +static inline uint MapLogX(void) { extern uint _map_log_x; return _map_log_x; } +static inline uint MapLogY(void) { extern uint _map_log_y; return _map_log_y; } +/* The size of the map */ +static inline uint MapSizeX(void) { return 1 << MapLogX(); } +static inline uint MapSizeY(void) { return 1 << MapLogY(); } +/* The maximum coordinates */ +static inline uint MapMaxX(void) { return MapSizeX() - 1; } +static inline uint MapMaxY(void) { return MapSizeY() - 1; } +/* The number of tiles in the map */ +static inline uint MapSize(void) { return MapSizeX() * MapSizeY(); } + #endif -- cgit v1.2.3-54-g00ecf