feat: Initial bandit roaming

Fixed typo in calculate camera
Removed some warning

.gitignore

@@ -1,3 +1,4 @@
 build/
 code/compile_commands.json
 code/.cache
+.vscode

code/core/impl/math.c

@@ -1,8 +1,22 @@
+#include <math.h>
 V2f V2F(F32 x, F32 y) {
 	V2f result = { x, y };
 	return result;
 }
 
+function V2f V2f_Scale(V2f x, F32 scale) {
+  return V2F(x.x * scale, x.y * scale);
+}
+
+V2f NormaliseV2F(V2f x) {
+  F32 magnitude = sqrtf((x.x * x.x) + (x.y * x.y)); 
+  if(magnitude > 0.0){
+    F32 inverse = 1.0f/magnitude;
+    return V2F(x.x*inverse, x.y*inverse);    
+  }
+  return x;
+}
+
 V3f V3F(F32 x, F32 y, F32 z) {
 	V3f result = { x, y, z };
 	return result;
@@ -160,4 +174,46 @@ Mat4x4FInv M4x4F_CameraView(V3f x, V3f y, V3f z, V3f p) {
 	return result;
 }
 
+// Random
 
+Random Random_Seed(U64 seed) {
+	Random result = { seed };
+	return result;
+}
+
+U64 Random_Next(Random *rnd) {
+	U64 result = rnd->state;
+
+	result ^= (result << 13);
+	result ^= (result >>  7);
+	result ^= (result << 17);
+
+	rnd->state = result;
+
+	return result;
+}
+
+F32 Random_F32(Random *rnd, F32 min, F32 max) {
+	F32 result = min + (Random_Unilateral(rnd) * (max - min));
+	return result;
+}
+
+F64 Random_F64(Random *rnd, F64 min, F64 max) {
+	F64 result = min + (Random_Unilateral(rnd) * (max - min));
+	return result;
+}
+
+U32 Random_U32(Random *rnd, U32 min, U32 max) {
+	U32 result = min + (U32) (Random_Unilateral(rnd) * (max - min));
+	return result;
+}
+
+F32 Random_Unilateral(Random *rnd) {
+	F32 result = Random_Next(rnd) / (F32) U64_MAX;
+	return result;
+}
+
+F32 Random_Bilateral(Random *rnd) {
+	F32 result = -1.0f + (2.0f * Random_Unilateral(rnd));
+	return result;
+}

code/core/math.h

@@ -4,6 +4,13 @@
 #define PI_F32  (3.14159265358979323846264338f)
 #define TAU_F32 (2.0f * PI_F32)
 
+#define Abs(x) (((x) < 0 ? -(x) : (x)))
+
+typedef struct Random Random;
+struct Random {
+	U64 state;
+};
+
 typedef union V2f V2f;
 union V2f {
 	struct {
@@ -114,4 +121,21 @@ function V3f M4x4F_VMul3(Mat4x4F m, V3f v);
 function Mat4x4FInv M4x4F_Perspective(F32 fov, F32 aspect, F32 nearp, F32 farp);
 function Mat4x4FInv M4x4F_CameraView(V3f x, V3f y, V3f z, V3f p);
 
+function V2f NormaliseV2F(V2f x);
+function V2f V2f_Scale(V2f x, F32 scale);
+
+// Random
+
+function Random Random_Seed(U64 seed);
+
+function U64 Random_Next(Random *rnd);
+
+function F32 Random_F32(Random *rnd, F32 min, F32 max);
+function F64 Random_F64(Random *rnd, F64 min, F64 max);
+
+function U32 Random_U32(Random *rnd, U32 min, U32 max);
+
+function F32 Random_Unilateral(Random *rnd);
+function F32 Random_Bilateral(Random *rnd);
+
 #endif  // LD_CORE_MATH_H_

code/draw/core.h

@@ -1,7 +1,7 @@
 #if !defined(LD_DRAW_CORE_H_)
 #define LD_DRAW_CORE_H_
 
-#define D_MAX_RECTS 1024
+#define D_MAX_RECTS (262144)
 
 typedef struct D_Image D_Image;
 struct D_Image {

code/first.c

@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <stdbool.h>
 #include <SDL3/SDL.h>
+#include <SDL3/SDL_keycode.h>
 
 #define STB_IMAGE_IMPLEMENTATION 1
 #include <stb_image.h>
@@ -17,9 +18,11 @@
 
 #include "game/impl/world.c"
 #include "game/impl/npc.c"
+#include "game/impl/bandit.c"
 #include "game/testnavmesh.h"
 
-int main(int argc, char **argv) {
+int main(int argc, char **argv)
+{
 	(void)argc;
 	(void)argv;
 
@@ -61,39 +64,49 @@ int main(int argc, char **argv) {
 		camera->farp = 1000.0f;
 
 		game->draw.camera = camera;
+		World *world = M_ArenaPush(arena, World);
+    game->world = world;
+    world->random = Random_Seed(29237489723847);
+    world->npcCount = 1;
+    for(int i = 0; i < world->npcCount; i++) {
+    NPC *npc1 = &world->npcs[i];
+      npc1->collision.pos.x = 15;
+      npc1->collision.pos.y = 15;
+      npc1->collision.size.x = 1;
+      npc1->collision.size.y = 1;
+      npc1->name = S("Matt");
+      npc1->mode = NPC_ACTION_WAITING;
+      npc1->waitTime = 0;
+      npc1->maxWaitTime = 5;
+      npc1->currentNavNode = 0;
+      npc1->collision.pos.x = 15;
+      npc1->collision.pos.y = 15;
+      npc1->collision.size.x = 10;
+      npc1->collision.size.y = 10;
     }
 
-	Vk_Buffer rbo = { 0 };
+    Bandit *badman = &world->bandit;
-	rbo.usage        = VK_BUFFER_USAGE_STORAGE_BUFFER_BIT;
+		badman->collision.pos.x = 15;
-	rbo.size         = KB(4);
+		badman->collision.pos.y = 15;
-	rbo.host_visible = true;
+		badman->collision.size.x = 10;
+		badman->collision.size.y = 10;
+		badman->name = S("Leroy Brown");
+		badman->mode = BANDIT_WAITING;
+		badman->waitTime = 0;
+		badman->maxWaitTime = 2;
+		badman->poiCount = 2;
+    badman->pointsOfInterest[0] = 937;
+    badman->pointsOfInterest[1] = 12;
 
-	Vk_BufferCreate(&rbo);
+		world->navMesh = &TestNavMesh;
+		world->npcPOI[0] = 100;
+		world->player.pos.x = 0;
+		world->player.pos.y = 0;
+		world->player.bulletsLoaded = PLAYER_BULLET_COUNT;
+		world->player.reloadTimer = 0;
+	}
 
 	bool running = true;
-  World world = {
-    .npcCount = 2,
-    .npcs = {
-      {
-        .collision = {{10, 10}, {10, 10}},
-        .name = S("Matt"),
-        .mode = NPC_ACTION_WAITING,
-        .waitTime = 0,
-        .maxWaitTime = 5,
-        .currentNavNode = 87
-      },{
-        .collision = {{15, 15}, {10, 10}},
-        .name = S("James"),
-        .mode = NPC_ACTION_WAITING,
-        .waitTime = 0,
-        .maxWaitTime = 10,
-        .currentNavNode = 0
-      }
-    },
-    .navMesh = &TestNavMesh,
-    .npcPOI = {100},
-    .player = {.pos = {0,0}}
-  };
 
 	printf("%zu size in bytes\n", sizeof(TestNavMesh));
 
@@ -106,9 +119,11 @@ int main(int argc, char **argv) {
 			{
 				running = false;
 			}
-      ProcessEvents(&e, &world);
+      ProcessEvents(&e, game->world);
 		}
-    UpdateWorld(1.0/60.0, &world);
+		UpdateWorld(1.0 / 60.0, game->world);
+    game->camera.p.x = game->world->player.pos.x;
+    game->camera.p.y = game->world->player.pos.y;
 
 		int w, h;
 		SDL_GetWindowSizeInPixels(window, &w, &h);
@@ -116,7 +131,7 @@ int main(int argc, char **argv) {
 		game->draw.window_width = w;
 		game->draw.window_height = h;
 
-		G_CalulateCamera(&game->camera, (F32) w / (F32) h);
+		G_CalculateCamera(&game->camera, (F32)w / (F32)h);
 
 		Vk_Frame *frame = Vk_FrameBegin(window);
 		VkCommandBuffer cmd = frame->cmd;
@@ -146,6 +161,7 @@ int main(int argc, char **argv) {
 
 		D_Begin(&game->draw, frame, D_MAX_RECTS);
 
+    RenderWorld(game->world, &game->draw);
 		D_Rect(&game->draw, 0.0f, 0.0f, .texture = 1);
 		D_Rect(&game->draw, -8.0f, 0.0f, .texture = 2, .scale = 2.0f);
 		D_Rect(&game->draw, 6.0f, 0.0f, .texture = 3);

code/game/aabb.h

@@ -3,15 +3,15 @@
 #include "../core/types.h"
 #include "../core/macros.h"
 
-
 typedef struct AABB AABB;
-struct AABB {
+struct AABB
+{
   V2f pos;
   V2f size;
 };
 
-
 function bool AABB_Collide(AABB a, AABB b);
 function bool AABB_Point(AABB a, V2f v);
+function bool AABB_Slab(V2f origin, V2f point, AABB a);
 
 #endif // LD_GAME_AABB_H_

code/game/bandit.h

@@ -6,7 +6,7 @@ enum BANDIT_ACTION {
   BANDIT_WAITING,
   BANDIT_WALKING,
   BANDIT_RUNNING,
-  BANDIT_SHOOTOUT,
+  BANDIT_SHOOTING,
 };
 
 typedef struct Bandit Bandit;
@@ -22,6 +22,7 @@ struct Bandit {
   // How long they will wait in this location.
   F32 maxWaitTime;
 
+  U32 poiCount;
   // Places the bandit walks to / from
   // E.g. hide outs, home, saloon
   U32 pointsOfInterest[12];

code/game/core.c

@@ -290,7 +290,7 @@ void G_PipelinesLoad(G_State *game) {
 	Vk_PipelineCreate(basic);
 }
 
-void G_CalulateCamera(G_Camera *camera, F32 aspect) {
+void G_CalculateCamera(G_Camera *camera, F32 aspect) {
 	Mat4x4FInv proj = M4x4F_Perspective(camera->fov, aspect, camera->nearp, camera->farp);
 	Mat4x4FInv view = M4x4F_CameraView(camera->x, camera->y, camera->z, camera->p);
 

code/game/core.h

@@ -1,5 +1,6 @@
 #if !defined(LD_GAME_CORE_H_)
 #define LD_GAME_CORE_H_
+#include "world.h"
 
 typedef struct G_Camera G_Camera;
 struct G_Camera {
@@ -18,17 +19,18 @@ struct G_State {
 
 	D_Context draw;
 	G_Camera camera;
+
+  World *world;
 };
 
 function void G_ImagesLoad(G_State *game);
 function void G_PipelinesLoad(G_State *game);
 
-function void G_CalulateCamera(G_Camera *camera, F32 aspect);
+function void G_CalculateCamera(G_Camera *camera, F32 aspect);
 
 #include "aabb.h"
 #include "player.h"
 #include "nav.h"
 #include "npc.h"
-#include "world.h"
 
 #endif  // LD_GAME_CORE_H_

code/game/impl/aabb.c

@@ -1,15 +1,36 @@
 #include "game/aabb.h"
-#include "core/types.h"
+#include <math.h>
 
-bool AABB_Collide(AABB a, AABB b) {
+bool AABB_Collide(AABB a, AABB b)
+{
   bool collision_x = a.pos.x + a.size.x >= b.pos.x && b.pos.x + b.size.x >= a.pos.x;
   bool collision_y = a.pos.y + a.size.x >= b.pos.y && b.pos.y + b.size.y >= a.pos.y;
   return collision_x && collision_y;
 }
 
-bool AABB_Point(AABB a, V2f v) {
+bool AABB_Point(AABB a, V2f v)
+{
   bool collision_x = a.pos.x + a.size.x >= v.x && a.pos.x <= v.x;
   bool collision_y = a.pos.x + a.size.y >= v.y && a.pos.y <= v.y;
   return collision_x && collision_y;
 }
 
+bool AABB_Slab(V2f origin, V2f point, AABB a)
+{
+  V2f start = a.pos;
+  V2f finish = {a.pos.x + a.size.x, a.pos.y + a.size.y};
+  V2f invdirection = {1 / (origin.x - point.x), 1 / (origin.y - point.y)};
+  // x
+  F32 tLow = (start.x - origin.x) * invdirection.x;
+  F32 tHigh = (finish.x - origin.x) * invdirection.x;
+  F32 tMin = Min(tLow, tHigh);
+  F32 tMax = Max(tLow, tHigh);
+  // y
+  tLow = (start.y - origin.y) * invdirection.y;
+  tHigh = (finish.y - origin.y) * invdirection.y;
+
+  tMin = Max(tMin, Min(tLow, tHigh));
+  tMax = Min(tMax, Max(tLow, tHigh));
+
+  return tMax >= tMin;
+}

code/game/impl/bandit.c

@@ -0,0 +1,41 @@
+#include "game/world.h"
+#include "game/bandit.h"
+
+void UpdateBandit(F32 delta, Bandit *bandit, World *world) {
+  switch (bandit->mode) {
+    case BANDIT_WAITING:
+      bandit->waitTime+=delta;
+      if(bandit->waitTime > bandit->maxWaitTime) {
+        bandit->mode = BANDIT_WALKING;
+        do {
+          U32 randomChoice = Random_U32(&world->random, 0, bandit->poiCount);
+          bandit->targetNavNode = bandit->pointsOfInterest[randomChoice];
+        } while(bandit->targetNavNode == bandit->currentNavNode);
+        bandit->path = Nav_Path(world->navMesh, bandit->currentNavNode, bandit->targetNavNode);
+        bandit->walkTimer = 0;
+      }
+    break;
+    case BANDIT_WALKING:
+      bandit->walkTimer+=delta;
+      if(bandit->walkTimer >= NPC_SPEED){
+        bandit->walkTimer = 0;
+        if(bandit->path.nodeCount == bandit->pathIndex+1){
+          bandit->mode = BANDIT_WAITING;
+          bandit->maxWaitTime = Random_F32(&world->random, 20, 140);
+          bandit->waitTime = 0;
+          bandit->currentNavNode = bandit->targetNavNode;
+          bandit->pathIndex = 0;
+          return;
+        }
+        bandit->currentNavNode = bandit->path.indexes[bandit->pathIndex];
+        bandit->pathIndex+=1;
+      }
+      NavNode cNav = world->navMesh->nodes[bandit->currentNavNode];
+      NavNode tNav = world->navMesh->nodes[bandit->path.indexes[bandit->pathIndex]];
+      bandit->collision.pos.x = cNav.pos.x * (1 - bandit->walkTimer/NPC_SPEED) + tNav.pos.x * bandit->walkTimer/NPC_SPEED;
+      bandit->collision.pos.y = cNav.pos.y * (1 - bandit->walkTimer/NPC_SPEED) + tNav.pos.y * bandit->walkTimer/NPC_SPEED;
+    break;
+      // TODO Shooting
+      // TODO Running away
+  }
+}

code/game/impl/nav.c

@@ -6,21 +6,25 @@
 #define MAX_UNFINISHED 128
 
 typedef struct navSearchNodeState navSearchNodeState;
-struct navSearchNodeState{
+struct navSearchNodeState
+{
   bool visited;
-  U64 distance;
+  F64 distance;
   U32 shortest;
   bool addedToUnvisited;
 };
 
 typedef struct navSearchState navSearchState;
-struct navSearchState{
+struct navSearchState
+{
   navSearchNodeState nodeStates[NAV_MAX_NODES];
 };
 
-navSearchState initState(U32 start, U32 meshSize) {
+navSearchState initState(U32 start, U32 meshSize)
-  navSearchState state = {};
+{
-  for(U32 i = 0; i < meshSize; i++) {
+  navSearchState state;
+  for (U32 i = 0; i < meshSize; i++)
+  {
     state.nodeStates[i].visited = false;
     state.nodeStates[i].addedToUnvisited = false;
     state.nodeStates[i].distance = U64_MAX;
@@ -30,20 +34,25 @@ navSearchState initState(U32 start, U32 meshSize) {
   return state;
 }
 
-U32 getLowestState(U32 unfinishedIndexes[128], U32 unfinishedCount, navSearchState state, U32 *offset) {
+U32 getLowestState(U32 unfinishedIndexes[128], U32 unfinishedCount, navSearchState state, U32 *offset)
+{
   U32 lowest = U32_MAX;
   U32 lowestI = U32_MAX;
   bool startFound = false;
-  for(U32 i = *offset; i < unfinishedCount; i++) {
+  for (U32 i = *offset; i < unfinishedCount; i++)
+  {
     navSearchNodeState checkNode = state.nodeStates[unfinishedIndexes[i]];
-    if(checkNode.visited) {
+    if (checkNode.visited)
-      if(!startFound) {
+    {
+      if (!startFound)
+      {
         *offset = i;
       }
       continue;
     }
     startFound = true;
-    if (lowest > checkNode.distance) {
+    if (lowest > checkNode.distance)
+    {
       lowest = cast(U32) checkNode.distance;
       lowestI = unfinishedIndexes[i];
     }
@@ -53,6 +62,12 @@ U32 getLowestState(U32 unfinishedIndexes[128], U32 unfinishedCount, navSearchSta
 
 // Generate a path to follow between the start and end node.
 NavPath Nav_Path(NavMesh *mesh, U32 start, U32 end) {
+  // This is a stupid fix, since it's easier to work backwards
+  // to generate a path, I'm swapping the start / end, to generate
+  // it backwards
+  U32 tmp = end;
+  end = start;
+  start = tmp;
   navSearchState state = initState(start, mesh->nodeCount);
   U32 unfinishedCount = 1;
   U32 unfinishedIndexes[NAV_MAX_NODES] = {start};
@@ -68,14 +83,15 @@ NavPath Nav_Path(NavMesh *mesh, U32 start, U32 end) {
       NavConnection      *connection = &mesh->nodes[lowestNodeIndex].connections[connectionI];
       navSearchNodeState *testNode   = &state.nodeStates[connection->NodeIndex];
       if(testNode->visited) {continue;}
-      U32 distance = cast(U32) (state.nodeStates[lowestNodeIndex].distance + connection->Cost);
+      F64 distance = cast(F64) (state.nodeStates[lowestNodeIndex].distance + connection->Cost);
-      distance += cast(U32) (mesh->nodes[end].pos.x - mesh->nodes[connection->NodeIndex].pos.x);
+      distance += cast(F64) Abs((mesh->nodes[end].pos.x - mesh->nodes[connection->NodeIndex].pos.x));
-      distance += cast(U32) (mesh->nodes[end].pos.y - mesh->nodes[connection->NodeIndex].pos.y);
+      distance += cast(F64) Abs((mesh->nodes[end].pos.y - mesh->nodes[connection->NodeIndex].pos.y));
       if(testNode->distance > distance) {
         testNode->distance = distance;
         testNode->shortest = lowestNodeIndex;
       }
-      if(!testNode->addedToUnvisited) {
+      if (!testNode->addedToUnvisited)
+      {
         unfinishedIndexes[unfinishedCount] = connection->NodeIndex;
         unfinishedCount++;
         testNode->addedToUnvisited = true;
@@ -83,13 +99,15 @@ NavPath Nav_Path(NavMesh *mesh, U32 start, U32 end) {
     }
     state.nodeStates[lowestNodeIndex].visited = true;
     lowestNodeIndex = getLowestState(unfinishedIndexes, unfinishedCount, state, &unfinishedOffset);
-    if(lowestNodeIndex == end) {
+    if (lowestNodeIndex == end)
+    {
       found = true;
     }
   }
   NavPath res_path = {0};
   U32 index = end;
-  while(index!=start) {
+  while (index != start)
+  {
     res_path.indexes[res_path.nodeCount] = index;
     res_path.nodeCount++;
     index = state.nodeStates[index].shortest;

code/game/impl/npc.c

@@ -1,22 +1,22 @@
 #include "game/npc.h"
 #include "game/world.h"
 #include "core/types.h"
+#include "core/math.h"
 
-#include <stdio.h>
+void UpdateNPC(F32 delta, NPC *npc, World *world) {
-
-void updateNPC(F32 delta, NPC *npc, World *world) {
   switch (npc->mode) {
     case NPC_ACTION_WAITING:
       npc->waitTime+=delta;
       if(npc->waitTime > npc->maxWaitTime) {
         npc->mode = NPC_ACTION_WALKING;
-        U32 next = npc->targetNavNode == 100 ? 20 : 100;
+        // TODO change targets to poi's rather than just random nodes
-        npc->targetNavNode = next; // TODO RANDOM
+        // TODO choose either global POI's or use NPC custom poi if
-        printf("Starting to nav path\n");
+        // customPOI is true
+        do {
+          npc->targetNavNode = Random_U32(&world->random, 0, world->navMesh->nodeCount);
+        } while(npc->targetNavNode == npc->currentNavNode);
         npc->path = Nav_Path(world->navMesh, npc->currentNavNode, npc->targetNavNode);
-        printf("done\n");
         npc->walkTimer = 0;
-        printf("%.*s started walking to %d\n", Sv(npc->name), npc->targetNavNode);
       }
     break;
     case NPC_ACTION_WALKING:
@@ -24,18 +24,18 @@ void updateNPC(F32 delta, NPC *npc, World *world) {
       if(npc->walkTimer >= NPC_SPEED){
         npc->walkTimer = 0;
         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, 20, 140);
           npc->waitTime = 0;
+          npc->currentNavNode = npc->targetNavNode;
           npc->pathIndex = 0;
           return;
         }
-        npc->pathIndex+=1;
         npc->currentNavNode = npc->path.indexes[npc->pathIndex];
+        npc->pathIndex+=1;
       }
       NavNode cNav = world->navMesh->nodes[npc->currentNavNode];
-      NavNode tNav = world->navMesh->nodes[npc->pathIndex];
+      NavNode tNav = world->navMesh->nodes[npc->path.indexes[npc->pathIndex]];
       npc->collision.pos.x = cNav.pos.x * (1 - npc->walkTimer/NPC_SPEED) + tNav.pos.x * npc->walkTimer/NPC_SPEED;
       npc->collision.pos.y = cNav.pos.y * (1 - npc->walkTimer/NPC_SPEED) + tNav.pos.y * npc->walkTimer/NPC_SPEED;
     break;

code/game/impl/player.c

@@ -1,26 +1,78 @@
 #include "../player.h"
+#include <SDL3/SDL_events.h>
 #include <SDL3/SDL_keycode.h>
 #include <stdio.h>
 
-void PlayerUpdate(SDL_Event *event, Player *player)
+void PlayerInput(SDL_Event *event, Player *player)
 {
+  player->controls.shot = false;
   SDL_KeyboardEvent key = event->key;
-    switch(key.key) {
+  SDL_MouseButtonEvent mouseBtn = event->button;
-      case SDLK_W: {
+  if(event->type == SDL_EVENT_KEY_DOWN || event->type == SDL_EVENT_KEY_UP) {
-        player->pos.y += 10;
+    bool val = event->type == SDL_EVENT_KEY_DOWN;
+    switch (key.key)
+    {
+      case SDLK_W:
+      {
+        player->controls.upDown = val;
         break;
       }
-      case SDLK_A: {
+      case SDLK_A:
-        player->pos.x -= 10;
+      {
+        player->controls.leftDown = val;
         break;
       }
-      case SDLK_D: {
+      case SDLK_D:
-        player->pos.x += 10;
+      {
+        player->controls.rightDown = val;
         break;
       }
-      case SDLK_S: {
+      case SDLK_S:
-        player->pos.y -= 10;
+      {
+        player->controls.downDown = val;
         break;
       }
     }
   }
+  if (
+    event->type == SDL_EVENT_MOUSE_BUTTON_DOWN 
+    && mouseBtn.button == SDL_BUTTON_LEFT
+  ) {
+    if(player->bulletsLoaded > 0) {
+      // shooting
+      player->bulletsLoaded -= 1;
+      player->controls.shot = true;
+      player->shotPos = V2F(mouseBtn.x, mouseBtn.y);
+      printf("shot %f %f\n", mouseBtn.x, mouseBtn.y);
+    } else if(player->reloadTimer == 0) {
+      player->reloadTimer = PLAYER_RELOAD_TIME;
+      printf("reloading\n");
+  };
+  } 
+}
+
+void PlayerUpdate(F32 delta, Player *player) {
+  V2f dir = V2F(0, 0);
+  if(player->controls.upDown) {
+    dir.y -= 1;
+  }
+  if(player->controls.downDown) {
+    dir.y += 1;
+  }
+  if(player->controls.leftDown) {
+    dir.x -= 1;
+  }
+  if(player->controls.rightDown) {
+    dir.x += 1;
+  }
+  if(player->reloadTimer > 0) {
+    player->reloadTimer-=delta;
+    if(player->reloadTimer <= 0) {
+      player->bulletsLoaded = PLAYER_BULLET_COUNT;
+      player->reloadTimer = 0;
+    }
+  }
+  dir = V2f_Scale(NormaliseV2F(dir), PLAYER_SPEED*delta);
+  player->pos.x += dir.x;
+  player->pos.y += dir.y;
+}

code/game/impl/world.c

@@ -3,16 +3,36 @@
 #include "../player.h"
 #include <SDL3/SDL_events.h>
 
-void UpdateWorld(F32 delta, World *world) {
+void UpdateWorld(F32 delta, World *world)
+{
+  UpdateBandit(delta, &world->bandit, world);
   UpdateNPCs(delta, world);
+  PlayerUpdate(delta, &world->player);
 }
 
-void UpdateNPCs(F32 delta, World *world) {
+void UpdateNPCs(F32 delta, World *world)
+{
+  for (U32 i = 0; i < world->npcCount; i++)
+  {
+    UpdateNPC(delta, &world->npcs[i], world);
+    if(world->player.controls.shot && AABB_Point(world->npcs[i].collision, world->player.shotPos)) {
+      // TODO we need to unproject the mouse location !!!
+      printf("You shot %.*s\n", Sv(world->npcs[i].name)); 
+    }
+  }
+}
+
+void ProcessEvents(SDL_Event *event, World *world)
+{
+  PlayerInput(event, &world->player);
+}
+
+void RenderWorld(World *world, D_Context *draw) {
   for(int i = 0; i < world->npcCount; i++) {
-    updateNPC(delta, &world->npcs[i], world);
+    NPC npc = world->npcs[i];
+    D_Rect(draw, npc.collision.pos.x, npc.collision.pos.y, .texture = 1); 
+    D_Rect(draw, npc.collision.pos.x, npc.collision.pos.y, .texture = 0, .dim = npc.collision.size); 
   }
-} 
+  D_Rect(draw, world->bandit.collision.pos.x, world->bandit.collision.pos.y, .texture = 9); 
-
+  D_Rect(draw, world->player.pos.x, world->player.pos.y, .texture = 1); 
-void ProcessEvents(SDL_Event *event, World *world) {
-  PlayerUpdate(event, &world->player);
 }

code/game/npc.h

@@ -5,7 +5,7 @@
 #include "npc_look.h"
 #include "../core/types.h"
 
-#define NPC_SPEED 0.2f
+#define NPC_SPEED 1.0f
 
 typedef enum NPC_ACTION NPC_ACTION;
 enum NPC_ACTION {
@@ -23,6 +23,10 @@ struct NPC {
   Str8 name;
   NPC_LOOK look;
 
+  bool customPOI;
+  U32 customPOICount;
+  U32 npcPOI[16];
+
   //// Actions
   NPC_ACTION mode;
   // How long they've been waiting

code/game/player.h

@@ -6,12 +6,31 @@
 
 #include <SDL3/SDL_events.h>
 
+#define PLAYER_SPEED 10.0f
+#define PLAYER_RELOAD_TIME 1.5f
+#define PLAYER_BULLET_COUNT 6
+
+typedef struct ControlState ControlState;
+struct ControlState {
+  bool rightDown;
+  bool leftDown;
+  bool upDown;
+  bool downDown;
+  bool shot;
+};
+
 typedef struct Player Player;
 struct Player
 {
     V2f pos;
+    U32 bulletsLoaded;
+    ControlState controls;
+    V2f shotPos;
+
+    F32 reloadTimer;
 };
 
-function void PlayerUpdate(SDL_Event *event, Player *player);
+function void PlayerInput(SDL_Event *event, Player *player);
+function void PlayerUpdate(F32 delta, Player *player);
 
 #endif  // LD_GAME_PLAYER_H_

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;
@@ -33,8 +35,10 @@ struct World {
 };
 
 function void UpdateWorld(F32 delta, World *world);
+function void RenderWorld(World *world, D_Context *drawContext );
 function void ProcessEvents(SDL_Event *event, World *world);
 function void UpdateNPCs(F32 delta, World *world);
-function void updateNPC(F32 delta, NPC *npc, World *world);
+function void UpdateNPC(F32 delta, NPC *npc, World *world);
+function void UpdateBandit(F32 delta, Bandit *bandit, World *world);
 
 #endif  // LD_GAME_WORLD_H_