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implement mob despawning

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p2r3
2025-08-22 14:30:26 +03:00
parent 4da773b943
commit 1c4e433a32
2 changed files with 20 additions and 0 deletions
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2
include/globals.h
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@@ -22,6 +22,8 @@
#define MAX_PLAYERS 16 #define MAX_PLAYERS 16
// How many mobs to allocate memory for // How many mobs to allocate memory for
#define MAX_MOBS (MAX_PLAYERS) #define MAX_MOBS (MAX_PLAYERS)
// Manhattan distance at which mobs despawn
#define MOB_DESPAWN_DISTANCE 256
// Server game mode: 0 - survival; 1 - creative; 2 - adventure; 3 - spectator // Server game mode: 0 - survival; 1 - creative; 2 - adventure; 3 - spectator
#define GAMEMODE 0 #define GAMEMODE 0
// Max render distance, determines how many chunks to send // Max render distance, determines how many chunks to send

18
src/procedures.c
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@@ -545,6 +545,24 @@ void handleServerTick (int64_t time_since_last_tick) {
// Skip 50% of ticks randomly // Skip 50% of ticks randomly
if (r & 1) continue; if (r & 1) continue;
// Find the player closest to this mob
uint16_t closest_x = 65535, closest_z = 65535;
for (int j = 0; j < MAX_PLAYERS; j ++) {
if (player_data[j].client_fd == -1) continue;
uint16_t dist_x = abs(mob_data[i].x - player_data[j].x);
uint16_t dist_z = abs(mob_data[i].z - player_data[j].z);
if (dist_x + dist_z < closest_x + closest_z) {
closest_x = dist_x;
closest_z = dist_z;
}
}
// Despawn mobs past a certain distance from nearest player
if (closest_x + closest_z > MOB_DESPAWN_DISTANCE) {
mob_data[i].type = 0;
continue;
}
// Move by one block on the X or Z axis // Move by one block on the X or Z axis
// Yaw is set to face in the direction of motion // Yaw is set to face in the direction of motion
short new_x = mob_data[i].x, new_z = mob_data[i].z; short new_x = mob_data[i].x, new_z = mob_data[i].z;