X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=src%2Fserver%2Ffield_of_view.c;h=07e1455999a0f81de63ce97b667ed03fd6f6a6b6;hb=491e8bc8e7a9b1d312256817c0b8be7e05b127be;hp=170d8acb1c83bd310cc01141d3392dd67a5373a9;hpb=678bde80a31877ced4b080cb435afa2117686c53;p=plomrogue diff --git a/src/server/field_of_view.c b/src/server/field_of_view.c index 170d8ac..07e1455 100644 --- a/src/server/field_of_view.c +++ b/src/server/field_of_view.c @@ -6,7 +6,7 @@ #include /* memset() */ #include "../common/rexit.h" /* exit_trouble() */ #include "../common/try_malloc.h" /* try_malloc() */ -#include "things.h" /* Thing */ +#include "things.h" /* Thing, ThingInMemory, add_thing_to_memory_map() */ #include "yx_uint8.h" /* yx_uint8 */ #include "world.h" /* world */ @@ -65,21 +65,12 @@ static uint8_t try_merging_angles(uint32_t left_angle, uint32_t right_angle, /* Test whether angle between "left_angle" and "right_angle", or at least * "middle_angle", is captured inside one of the shadow angles in "shadows". If - * so, set hex in "fov_map" indexed by "pos_in_map" to HIDDEN. If the whole - * angle and not just "middle_angle" is captured, return 1. Any other case: 0. + * so, set hex in "fov_map" indexed by "pos_in_map" to 'H'. If the whole angle + * and not just "middle_angle" is captured, return 1. Any other case: 0. */ static uint8_t shade_hex(uint32_t left_angle, uint32_t right_angle, uint32_t middle_angle, struct shadow_angle ** shadows, - uint16_t pos_in_map, uint8_t * fov_map); - -/* Test whether angle between "left_angle" and "right_angle", or at least - * "middle_angle", is captured inside one of the shadow angles in "shadows". If - * so, set hex in "fov_map" indexed by "pos_in_map" to HIDDEN. If the whole - * angle and not just "middle_angle" is captured, return 1. Any other case: 0. - */ -static uint8_t shade_hex(uint32_t left_angle, uint32_t right_angle, - uint32_t middle_angle, struct shadow_angle ** shadows, - uint16_t pos_in_map, uint8_t * fov_map); + uint16_t pos_in_map, char * fov_map); /* Free shadow angles list "angles". */ static void free_angles(struct shadow_angle * angles); @@ -89,11 +80,13 @@ static void free_angles(struct shadow_angle * angles); * the circle's rightmost point), for setting shaded hexes in "fov_map" and * potentially adding a new shadow to linked shadow angle list "shadows". */ -static void eval_position(uint16_t dist, uint16_t hex_i, uint8_t * fov_map, +static void eval_position(uint16_t dist, uint16_t hex_i, char * fov_map, struct yx_uint8 * test_pos, struct shadow_angle ** shadows); -/* Update "t"'s .mem_map memory with what's in its current field of view. */ +/* Update "t"'s .mem_map memory with what's in its current FOV, remove from its + * .t_mem all memorized things in FOV and add inanimiate things in FOV to it. + */ static void update_map_memory(struct Thing * t, uint32_t map_size); @@ -264,23 +257,23 @@ static uint8_t try_merging_angles(uint32_t left_angle, uint32_t right_angle, static uint8_t shade_hex(uint32_t left_angle, uint32_t right_angle, uint32_t middle_angle, struct shadow_angle ** shadows, - uint16_t pos_in_map, uint8_t * fov_map) + uint16_t pos_in_map, char * fov_map) { struct shadow_angle * shadow_i; - if (fov_map[pos_in_map] & VISIBLE) + if (fov_map[pos_in_map] == 'v') { for (shadow_i = *shadows; shadow_i; shadow_i = shadow_i->next) { if ( left_angle <= shadow_i->left_angle && right_angle >= shadow_i->right_angle) { - fov_map[pos_in_map] = HIDDEN; + fov_map[pos_in_map] = 'H'; return 1; } if ( middle_angle < shadow_i->left_angle && middle_angle > shadow_i->right_angle) { - fov_map[pos_in_map] = HIDDEN; + fov_map[pos_in_map] = 'H'; } } } @@ -331,7 +324,7 @@ static void free_angles(struct shadow_angle * angles) -static void eval_position(uint16_t dist, uint16_t hex_i, uint8_t * fov_map, +static void eval_position(uint16_t dist, uint16_t hex_i, char * fov_map, struct yx_uint8 * test_pos, struct shadow_angle ** shadows) { @@ -363,19 +356,49 @@ static void eval_position(uint16_t dist, uint16_t hex_i, uint8_t * fov_map, -static void update_map_memory(struct Thing * t, uint32_t map_size) +static void update_map_memory(struct Thing * t_eye, uint32_t map_size) { - if (!t->mem_map) + if (!t_eye->mem_map) { - t->mem_map = try_malloc(map_size, __func__); - memset(t->mem_map, ' ', map_size); + t_eye->mem_map = try_malloc(map_size, __func__); + memset(t_eye->mem_map, ' ', map_size); } uint32_t i; for (i = 0; i < map_size; i++) { - if (' ' == t->mem_map[i] && t->fov_map[i] & VISIBLE) + if (' ' == t_eye->mem_map[i] && t_eye->fov_map[i] == 'v') + { + t_eye->mem_map[i] = world.map.cells[i]; + } + } + struct ThingInMemory * tm = t_eye->t_mem; + struct ThingInMemory * tm_prev = NULL; + struct ThingInMemory * tm_next = NULL; + for (; tm; tm = tm_next) + { + tm_next = tm->next; + if ('v' == t_eye->fov_map[tm->pos.y * world.map.length + tm->pos.x]) + { + if (tm_prev) + { + tm_prev->next = tm->next; + } + else + { + t_eye->t_mem = tm->next; + } + free(tm); + continue; + } + tm_prev = tm; + } + struct Thing * t = world.things; + for (; t; t = t->next) + { + if ( !t->lifepoints + && 'v' == t_eye->fov_map[t->pos.y * world.map.length + t->pos.x]) { - t->mem_map[i] = world.map.cells[i]; + add_thing_to_memory_map(t_eye, t->type, t->pos.y, t->pos.x); } } } @@ -386,7 +409,7 @@ extern void build_fov_map(struct Thing * t) { uint32_t map_size = world.map.length * world.map.length; t->fov_map = t->fov_map ? t->fov_map : try_malloc(map_size, __func__); - memset(t->fov_map, VISIBLE, map_size); + memset(t->fov_map, 'v', map_size); struct yx_uint8 test_pos = t->pos; struct shadow_angle * shadows = NULL; char * circle_dirs = "xswedc";