From 394366480b8b37aa9da9bb09663c7bed0fcf6bee Mon Sep 17 00:00:00 2001
From: Matt <matt@threlfall.dev>
Date: Sun, 5 Oct 2025 15:32:57 +0100
Subject: [PATCH] feat: Random npc walkabouts

---
 code/first.c         | 3 ++-
 code/game/impl/npc.c | 7 ++++---
 code/game/world.h    | 2 ++
 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/code/first.c b/code/first.c
index 59fd591..4a2bd06 100644
--- a/code/first.c
+++ b/code/first.c
@@ -63,6 +63,7 @@ int main(int argc, char **argv) {
 		game->draw.camera = camera;
 		World *world = M_ArenaPush(arena, World);
     game->world = world;
+    world->random = Random_Seed(29237489723847);
     world->npcCount = 2;
     NPC *npc1 = &world->npcs[0];
     npc1->collision.pos.x = 15;
@@ -79,7 +80,7 @@ int main(int argc, char **argv) {
     npc1->collision.size.x = 10;
     npc1->collision.size.y = 10;
 
-    NPC *npc2 = &world->npcs[0];
+    NPC *npc2 = &world->npcs[1];
     npc2->collision.pos.x = 15;
     npc2->collision.pos.y = 15;
     npc2->collision.size.x = 10;
diff --git a/code/game/impl/npc.c b/code/game/impl/npc.c
index 4c9d1a2..bc7358e 100644
--- a/code/game/impl/npc.c
+++ b/code/game/impl/npc.c
@@ -1,6 +1,7 @@
 #include "game/npc.h"
 #include "game/world.h"
 #include "core/types.h"
+#include "core/math.h"
 
 #include <stdio.h>
 
@@ -10,8 +11,8 @@ void updateNPC(F32 delta, NPC *npc, World *world) {
       npc->waitTime+=delta;
       if(npc->waitTime > npc->maxWaitTime) {
         npc->mode = NPC_ACTION_WALKING;
-        U32 next = npc->targetNavNode == 100 ? 20 : 100;
-        npc->targetNavNode = next; // TODO RANDOM
+        // TODO change targets to poi's rather than just random nodes
+        npc->targetNavNode = Random_U32(&world->random, 0, world->navMesh->nodeCount);
         printf("Starting to nav path\n");
         npc->path = Nav_Path(world->navMesh, npc->currentNavNode, npc->targetNavNode);
         printf("done\n");
@@ -26,7 +27,7 @@ void updateNPC(F32 delta, NPC *npc, World *world) {
         if(npc->path.nodeCount == npc->pathIndex+1){
           printf("Finished! so I'm waiting\n");
           npc->mode = NPC_ACTION_WAITING;
-          npc->maxWaitTime = 20; // TODO RANDOM
+          npc->maxWaitTime = Random_F32(&world->random, 10, 40);
           npc->waitTime = 0;
           npc->pathIndex = 0;
           return;
diff --git a/code/game/world.h b/code/game/world.h
index 433070b..d237538 100644
--- a/code/game/world.h
+++ b/code/game/world.h
@@ -4,6 +4,7 @@
 #include "player.h"
 #include "npc.h"
 #include "bandit.h"
+#include "../core/math.h"
 
 // Areas are which
 typedef U32 World_Area;
@@ -16,6 +17,7 @@ typedef struct World World;
 struct World {
   //// Static stuff
   NavMesh *navMesh;
+  Random random;
 
   //// Player
 	Player player;