diff options
Diffstat (limited to 'zombies.c')
| -rw-r--r-- | zombies.c | 114 |
1 files changed, 106 insertions, 8 deletions
@@ -1,14 +1,44 @@ #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; + + 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; } } @@ -30,7 +60,7 @@ void draw_spawners(platform_window* window) { rgb(100, 150, 50)); spawner_tiles[x].sec_since_last_spawn += update_delta; - if (spawner_tiles[x].sec_since_last_spawn >= 1.0f) { + if (spawner_tiles[x].sec_since_last_spawn >= 3.0f) { spawn_zombie(spawner.position.x, spawner.position.y); spawner_tiles[x].sec_since_last_spawn = 0; } @@ -42,6 +72,55 @@ void draw_spawners(platform_window* window) { } } +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; @@ -49,24 +128,43 @@ void draw_zombies_at_tile(platform_window* window, int x, int y) { 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; - float dirx = (playerx - o.position.x); - float diry = (playery - o.position.y); - double length = sqrt(dirx * dirx + diry * diry); - dirx /= length; - diry /= length; + zombies[i].time_since_last_path += update_delta; + if (zombies[i].time_since_last_path > 0.1f) { + 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 (zombies[i].request.done) { + zombies[i].path = zombies[i].next_path; + array_clear(&zombies[i].next_path); + zombies[i].request.done = false; + } + } + + 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 += dirx*speed; - zombies[i].position.y += diry*speed; + 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); } } |