From 610cadb145a50255112eebc7218335dab9039925 Mon Sep 17 00:00:00 2001
From: Vladyslav Hrytsenko <vladgritsenko@gmail.com>
Date: Sun, 17 Jan 2021 09:57:08 +0200
Subject: [PATCH] code: added chunk options

---
 code/apps/server/source/main.c    | 16 +++++++++++++---
 code/apps/server/source/network.c | 30 +++++++++++++++++++++++++++++-
 2 files changed, 42 insertions(+), 4 deletions(-)

diff --git a/code/apps/server/source/main.c b/code/apps/server/source/main.c
index 430b591..64e53bc 100644
--- a/code/apps/server/source/main.c
+++ b/code/apps/server/source/main.c
@@ -3,10 +3,12 @@
 
 #include "system.h"
 #include "network.h"
+#include "world/world.h"
 #include "utils/options.h"
 
 #define DEFAULT_WORLD_SEED 302097
-#define DEFAULT_WORLD_DIMS 32
+#define DEFAULT_CHUNK_SIZE 16
+#define DEFAULT_CHUNK_AMOUNT 8
 
 #define IF(call) do { \
     if (call != 0) { \
@@ -23,7 +25,8 @@ int main(int argc, char** argv) {
     zpl_opts_add(&opts, "p", "preview-map", "draw world preview", ZPL_OPTS_FLAG);
     zpl_opts_add(&opts, "s", "seed", "world seed", ZPL_OPTS_INT);
     zpl_opts_add(&opts, "r", "random-seed", "generate random world seed", ZPL_OPTS_FLAG);
-    zpl_opts_add(&opts, "ws", "world-size", "world dimensions", ZPL_OPTS_INT);
+    zpl_opts_add(&opts, "cs", "chunk-size", "size of a single chunk", ZPL_OPTS_INT);
+    zpl_opts_add(&opts, "ca", "chunk-amount", "amount of chunks", ZPL_OPTS_INT);
     uint32_t ok = zpl_opts_compile(&opts, argc, argv);
 
     if (!ok) {
@@ -32,7 +35,9 @@ int main(int argc, char** argv) {
         return -1;
     }
     int32_t seed = zpl_opts_integer(&opts, "seed", DEFAULT_WORLD_SEED);
-    int32_t world_size = zpl_opts_integer(&opts, "world-size", DEFAULT_WORLD_DIMS);
+    int32_t chunk_size = zpl_opts_integer(&opts, "chunk-size", DEFAULT_CHUNK_SIZE);
+    int32_t chunk_amount = zpl_opts_integer(&opts, "chunk-amount", DEFAULT_CHUNK_AMOUNT);
+    int32_t world_size = chunk_size * chunk_amount;
 
     if (zpl_opts_has_arg(&opts, "random-seed")) {
         zpl_random rnd={0};
@@ -46,6 +51,10 @@ int main(int argc, char** argv) {
         return 0;
     }
 
+    zpl_printf("[INFO] Generating world of size: %d x %d\n", world_size, world_size);
+    IF(world_init(seed, world_size, world_size));
+
+    zpl_printf("[INFO] Initializing network...\n");
     IF(network_init());
     IF(network_server_start("0.0.0.0", 27000));
 
@@ -55,6 +64,7 @@ int main(int argc, char** argv) {
 
     IF(network_server_stop());
     IF(network_destroy());
+    IF(world_destroy());
 
     return 0;
 }
diff --git a/code/apps/server/source/network.c b/code/apps/server/source/network.c
index 3ba523b..323213e 100644
--- a/code/apps/server/source/network.c
+++ b/code/apps/server/source/network.c
@@ -28,6 +28,34 @@ int32_t network_destroy(void) {
     return 0;
 }
 
+int32_t server_write_update(librg_world *w, librg_event *e) {
+    int64_t owner_id = librg_event_owner_get(w, e);
+    int64_t entity_id = librg_event_entity_get(w, e);
+
+    return 0;
+
+    // /* prevent sending updates to users who own that entity */
+    // /* since they will be responsible on telling where that entity is supposed to be */
+    // if (librg_entity_owner_get(w, entity_id) == owner_id) {
+    //     return LIBRG_WRITE_REJECT;
+    // }
+
+    // /* read our current position */
+    // ENetPeer *peer = (ENetPeer *)librg_entity_userdata_get(w, entity_id);
+
+    // char *buffer = librg_event_buffer_get(w, e);
+    // size_t max_length = librg_event_size_get(w, e);
+
+    // /* check if we have enough space to write and valid position */
+    // if (sizeof(vec3) > max_length || !peer->data) {
+    //     return LIBRG_WRITE_REJECT;
+    // }
+
+    // /* write data and return how much we've written */
+    // memcpy(buffer, peer->data, sizeof(vec3));
+    // return sizeof(vec3);
+}
+
 int32_t network_server_start(const char *host, uint16_t port) {
     zpl_unused(host);
 
@@ -62,7 +90,7 @@ int32_t network_server_start(const char *host, uint16_t port) {
     librg_config_chunkamount_set(server_world, 9, 9, 9);
     librg_config_chunkoffset_set(server_world, LIBRG_OFFSET_MID, LIBRG_OFFSET_MID, LIBRG_OFFSET_MID);
 
-    // librg_event_set(server_world, LIBRG_WRITE_UPDATE, server_write_update);
+    librg_event_set(server_world, LIBRG_WRITE_UPDATE, server_write_update);
     // librg_event_set(server_world, LIBRG_READ_UPDATE, server_read_update);
 
     zpl_timer_start(&nettimer, NETWORK_UPDATE_DELAY);