diff options
Diffstat (limited to 'src/zombies.c')
| -rw-r--r-- | src/zombies.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/src/zombies.c b/src/zombies.c new file mode 100644 index 0000000..4bbcf40 --- /dev/null +++ b/src/zombies.c @@ -0,0 +1,175 @@ +#include "../include/zombies.h" + +static player get_closest_player_to_tile(int x, int y) { + float best_length = 99999; + int best_index = -1; + + for (int i = 0; i < max_players; i++) { + if (!players[i].active) continue; + float dirx = (players[i].playerx - x); + float diry = (players[i].playery - y); + double length = sqrt(dirx * dirx + diry * diry); + + if (length < best_length) { + best_length = length; + best_index = i; + } + } + if (best_index == -1) { + return (player){-1}; + } + else { + return players[best_index]; + } +} + +void spawn_zombie(int x, int y) { + for (int i = 0; i < max_zombies; i++) { + zombie o = zombies[i]; + if (o.alive) continue; + + zombies[i].path = array_create(sizeof(vec2f)); + zombies[i].next_path = array_create(sizeof(vec2f)); + zombies[i].alive = true; + zombies[i].health = 100.0f; + zombies[i].position = (vec3f){x,y, 0}; + zombies[i].size = (vec3f){0.4, 0.4, 1}; + zombies[i].time_since_last_path = 0.0f; + zombies[i].request.mutex = mutex_create(); + + player closest_player = get_closest_player_to_tile(x, y); + + make_pathfinding_request((vec2f){x,y}, (vec2f){closest_player.playerx, closest_player.playery}, &zombies[i].path, &zombies[i].request); + break; + } +} + +void draw_spawners(platform_window* window) { + map_info info = get_map_info(window); + + for (int x = 0; x < 1; x++) { + spawner spawner = spawner_tiles[x]; + int render_x = (info.tile_width * spawner.position.x) + (info.px_incline * spawner.position.y); + int render_y = info.tile_height * spawner.position.y; + + tile tile = map_loaded[spawner.position.y][spawner.position.x]; + renderer->render_quad( + tile.tl.x, tile.tl.y, + tile.bl.x, tile.bl.y, + tile.br.x, tile.br.y, + tile.tr.x, tile.tr.y, + rgb(100, 150, 50)); + + spawner_tiles[x].sec_since_last_spawn += update_delta; + if (spawner_tiles[x].sec_since_last_spawn >= 2.0f) { + spawn_zombie(spawner.position.x, spawner.position.y); + spawner_tiles[x].sec_since_last_spawn = 0; + } + + renderer->render_line(tile.tl.x, tile.tl.y, tile.tr.x, tile.tr.y, 1, rgb(0,255,255)); // top + renderer->render_line(tile.tl.x, tile.tl.y, tile.bl.x, tile.bl.y, 1, rgb(0,255,255)); // left + renderer->render_line(tile.tr.x, tile.tr.y, tile.br.x, tile.br.y, 1, rgb(0,255,255)); // right + renderer->render_line(tile.bl.x, tile.bl.y, tile.br.x, tile.br.y, 1, rgb(0,255,255)); // bottom + } +} + +static void draw_path_of_zombie(platform_window* window, zombie o) { + map_info info = get_map_info(window); + vec2f prev_pos = (vec2f){o.position.x, o.position.y}; + + for (int i = 0; i < o.path.length; i++) { + vec2f* pos = array_at(&o.path, o.path.length-1-i); + + int render_x = (info.tile_width * prev_pos.x) + (info.px_incline * prev_pos.y); + int render_y = info.tile_height * prev_pos.y; + + int render_x2 = (info.tile_width * pos->x) + (info.px_incline * pos->y); + int render_y2 = info.tile_height * pos->y; + + prev_pos = *pos; + if (i == 0) { + renderer->render_line(render_x, render_y, render_x2, render_y2, 2, rgb(0,255,255)); + continue; + } + + renderer->render_line(render_x, render_y, render_x2, render_y2, 2, rgb(0,0,255)); + } +} + +static vec2f get_direction_to_next_tile(zombie o) { + vec2f dest = (vec2f){o.position.x, o.position.y}; + if (o.path.length > 0) { + dest = *(vec2f*)array_at(&o.path, o.path.length-1); + } + + float dirx = (dest.x - o.position.x); + float diry = (dest.y - o.position.y); + if (dirx == 0 && diry == 0) return (vec2f){0,0}; + double length = sqrt(dirx * dirx + diry * diry); + dirx /= length; + diry /= length; + return (vec2f){dirx, diry}; +} + +static bool is_within_next_tile(zombie o) { + if (o.path.length > 0) { + vec2f dest = *(vec2f*)array_at(&o.path, o.path.length-1); + if (fabs(o.position.x - dest.x) < 0.05f && fabs(o.position.y - dest.y) < 0.05f) { + return true; + } + } + + return false; +} + +void draw_zombies_at_tile(platform_window* window, int x, int y) { + map_info info = get_map_info(window); + float speed = 0.05f; + + for (int i = 0; i < max_zombies; i++) { + zombie o = zombies[i]; + if (!o.alive) continue; + + if ((int)o.position.x != x || (int)ceil(o.position.y) != y) continue; + + zombies[i].time_since_last_path += update_delta; + if (zombies[i].time_since_last_path > 0.05f) { + player closest_player = get_closest_player_to_tile(x, y); + make_pathfinding_request((vec2f){o.position.x,o.position.y}, + (vec2f){closest_player.playerx, closest_player.playery + get_player_size_in_tile()}, + &zombies[i].next_path, &zombies[i].request); + zombies[i].time_since_last_path = 0; + } + else { + if (mutex_trylock(&zombies[i].request.mutex)) + { + if (zombies[i].request.to_fill->length) { + array_destroy(&zombies[i].path); + zombies[i].path = array_copy(&zombies[i].next_path); + array_clear(&zombies[i].next_path); + } + } + mutex_unlock(&zombies[i].request.mutex); + } + + vec2f dir = get_direction_to_next_tile(o); + + float height = get_height_of_tile_under_coords(window, zombies[i].position.x, zombies[i].position.y); + zombies[i].position.x += dir.x*speed; + zombies[i].position.y += dir.y*speed; + zombies[i].position.z = height; + + if (is_within_next_tile(zombies[i])) { + array_remove_at(&zombies[i].path, zombies[i].path.length-1); + } + + box box = get_render_box_of_square(window, (vec3f){o.position.x, o.position.y, height}, o.size); + render_quad_with_outline(box.tl_b, box.tr_b, box.bl_b, box.br_b); + render_quad_with_outline(box.tl_u, box.tr_u, box.bl_u, box.br_u); + render_quad_with_outline(box.tl_u, box.tl_b, box.bl_u, box.bl_b); + render_quad_with_outline(box.bl_u, box.br_u, box.bl_b, box.br_b); + + draw_path_of_zombie(window, o); + } +} + |