src/light.c File Reference

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Detailed Description

Functions for line-of-sight and light sources.

The functions in this file are speed-critical, and get optimized accordingly. Don't put anything big in here, and keep the functions fast.

Definition in file light.c.

#include "crogue.h"

Go to the source code of this file.

Defines
#define	MAX_LIGHT_RADIUS   15
#define	MAX_LIGHT_RADIUS_SQUARED   225
Functions
void	calc_light_tile (int x, int y)
void	calc_light (void)
ushort	tracevision (sshort x1, sshort y1, sshort x2, sshort y2)
void	illuminate (sint x, sint y, sint radiussquared)

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Define Documentation

#define MAX_LIGHT_RADIUS   15

Definition at line 29 of file light.c. Referenced by calc_light().

#define MAX_LIGHT_RADIUS_SQUARED   225

Definition at line 30 of file light.c. Referenced by calc_light_tile().

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Function Documentation

void calc_light (  void   )

Definition at line 35 of file light.c. References calc_light_tile(), MAPSIZE_X, MAPSIZE_Y, MAX_LIGHT_RADIUS, world::plr, w, player::x, and player::y. Referenced by enter_map(), manip_door(), monstmoveto(), plr_moveto(), plr_walk(), and update_player().

void calc_light_tile (  int  x, int  y )  [static]

Definition at line 62 of file light.c. References distancesquare, draw_tile(), player::extrinsic, tile::flags, MAX_LIGHT_RADIUS_SQUARED, world::plr, STAT_LIGHTRADIUS, world::t, TFLAG_EXPLORED, TFLAG_INTRINSIC_LIGHT, TFLAG_LIT, TILEDESC, tracevision(), w, player::x, and player::y. Referenced by calc_light().

void illuminate (  sint  x, sint  y, sint  radiussquared )

Definition at line 183 of file light.c. References tile::flags, MAPSIZE_X, MAPSIZE_Y, world::t, TFLAG_INTRINSIC_LIGHT, tracevision(), and w. Referenced by light_room().

ushort tracevision (  sshort  x1, sshort  y1, sshort  x2, sshort  y2 )

Definition at line 134 of file light.c. References sshort, world::t, world::tiledescs, tiledesc::transparent, tile::type, ushort, and w. Referenced by calc_light_tile(), illuminate(), and monst_is_aligned_with_plr().

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