add readme for discord

README.md

@@ -1,6 +1,10 @@
 # Basin
 A high performance Minecraft server implementation written in C.
 
+## Discord Server
+
+Join the Discord server [here](https://discord.gg/3uW2QQV).
+
 # Goals
 * Pure performance: minimum resource usage for a full Minecraft server implementation
 * Drop-in replacement: compatible with Spigot API plugins via JNI, standard Minecraft world format (Anvil)

src/entity.c

@@ -1033,7 +1033,8 @@ void tick_entity(struct world* world, struct entity* entity) {
         damageEntity(entity, 1., 0);
     }
     if (ei != NULL && ei->onTick != NULL) {
-        if ((*ei->onTick)(world, entity)) {
+        (*ei->onTick)(world, entity);
+        if (entity->despawn) {
             return;
         }
     }

src/entity_impl.c

@@ -188,14 +188,11 @@ void tick_arrow(struct world* world, struct entity* entity) {
             return 1;
         }
     }
-//printf("hf2c = %f, %f, %f\n", entity->x, entity->y, entity->z);
 
     if (entity->data.arrow.ticksInGround == 0) {
         float dhz = sqrtf(entity->motX * entity->motX + entity->motZ * entity->motZ);
         entity->yaw = atan2f(entity->motX, entity->motZ) * 180. / M_PI;
         entity->pitch = atan2f(entity->motY, dhz) * 180. / M_PI;
-        //printf("desired %f, %f, %f\n", entity->pitch, entity->motY, dhz);
-        //printf("yaw = %f, last_yaw = %f\npitch = %f, last_pitch = %f\n", entity->yaw, entity->last_yaw, entity->pitch, entity->last_pitch);
         if ((entity->last_yaw == 0. && entity->last_pitch == 0.)) {
             entity->last_yaw = entity->yaw;
             entity->last_pitch = entity->pitch;
@@ -215,7 +212,7 @@ void tick_arrow(struct world* world, struct entity* entity) {
     return 0;
 }
 
-int tick_itemstack(struct world* world, struct entity* entity) {
+void tick_itemstack(struct world* world, struct entity* entity) {
     if (entity->data.itemstack.delayBeforeCanPickup > 0) {
         entity->data.itemstack.delayBeforeCanPickup--;
         return 0;

src/world.c

@@ -888,7 +888,7 @@ void world_tick(struct world* world) {
         pthread_rwlock_rdlock(&world->players->rwlock);
         ITER_MAP(world->players) {
             struct player* player = (struct player*) value;
-            player_tick(world, player);
+            player_tick(player);
             tick_entity(world, player->entity); // might need to be moved into separate loop later
             ITER_MAP_END();
         }
@@ -899,6 +899,9 @@ void world_tick(struct world* world) {
         ITER_MAP(world->entities) {
             struct entity* entity = (struct entity*) value;
             if (entity->type != ENT_PLAYER) tick_entity(world, entity);
+            if (entity->despawn) {
+                pfree(entity->pool);
+            }
             ITER_MAP_END();
         }
         pthread_rwlock_unlock(&world->entities->rwlock);