add ignore

.gitignore

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

code/core/impl/math.c

@@ -160,46 +160,4 @@ 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

@@ -4,11 +4,6 @@
 #define PI_F32  (3.14159265358979323846264338f)
 #define TAU_F32 (2.0f * PI_F32)
 
-typedef struct Random Random;
-struct Random {
-	U64 state;
-};
-
 typedef union V2f V2f;
 union V2f {
 	struct {
@@ -119,18 +114,4 @@ 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);
 
-// 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 (262144)
+#define D_MAX_RECTS 1024
 
 typedef struct D_Image D_Image;
 struct D_Image {

code/first.c

@@ -19,9 +19,10 @@
 #include "game/impl/npc.c"
 #include "game/testnavmesh.h"
 
-int main(int argc, char **argv) {
-	(void) argc;
-	(void) argv;
+int main(int argc, char **argv)
+{
+	(void)argc;
+	(void)argv;
 
 	if (!SDL_Init(SDL_INIT_VIDEO))
 	{
@@ -61,42 +62,34 @@ int main(int argc, char **argv) {
 		camera->farp = 1000.0f;
 
 		game->draw.camera = camera;
-		World *world = M_ArenaPush(arena, World);
-    game->world = world;
-    world->npcCount = 2;
-    NPC *npc1 = &world->npcs[0];
-    npc1->collision.pos.x = 15;
-    npc1->collision.pos.y = 15;
-    npc1->collision.size.x = 10;
-    npc1->collision.size.y = 10;
-    npc1->name = S("Matt");
-    npc1->mode = NPC_ACTION_WAITING;
-    npc1->waitTime = 0;
-    npc1->maxWaitTime = 5;
-    npc1->currentNavNode = 87;
-    npc1->collision.pos.x = 15;
-    npc1->collision.pos.y = 15;
-    npc1->collision.size.x = 10;
-    npc1->collision.size.y = 10;
-
-    NPC *npc2 = &world->npcs[0];
-    npc2->collision.pos.x = 15;
-    npc2->collision.pos.y = 15;
-    npc2->collision.size.x = 10;
-    npc2->collision.size.y = 10;
-    npc2->name = S("James");
-    npc2->mode = NPC_ACTION_WAITING;
-    npc2->waitTime = 0;
-    npc2->maxWaitTime = 10;
-    npc2->currentNavNode = 0;
-
-    world->navMesh = &TestNavMesh;
-    world->npcPOI[0] = 100;
-    world->player.pos.x = 0;
-    world->player.pos.y = 0;
 	}
 
+	Vk_Buffer rbo = {0};
+	rbo.usage = VK_BUFFER_USAGE_STORAGE_BUFFER_BIT;
+	rbo.size = KB(4);
+	rbo.host_visible = true;
+
+	Vk_BufferCreate(&rbo);
+
 	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));
 
@@ -109,9 +102,9 @@ int main(int argc, char **argv) {
 			{
 				running = false;
 			}
-      ProcessEvents(&e, game->world);
+			ProcessEvents(&e, &world);
 		}
-    UpdateWorld(1.0/60.0, game->world);
+		UpdateWorld(1.0 / 60.0, &world);
 
 		int w, h;
 		SDL_GetWindowSizeInPixels(window, &w, &h);
@@ -119,7 +112,7 @@ int main(int argc, char **argv) {
 		game->draw.window_width = w;
 		game->draw.window_height = h;
 
-		G_CalculateCamera(&game->camera, (F32) w / (F32) h);
+		G_CalulateCamera(&game->camera, (F32)w / (F32)h);
 
 		Vk_Frame *frame = Vk_FrameBegin(window);
 		VkCommandBuffer cmd = frame->cmd;
@@ -140,7 +133,7 @@ int main(int argc, char **argv) {
 
 		VkRenderingInfo rendering_info = {0};
 		rendering_info.sType = VK_STRUCTURE_TYPE_RENDERING_INFO;
-		rendering_info.renderArea           = (VkRect2D) { 0, 0, w, h };
+		rendering_info.renderArea = (VkRect2D){0, 0, w, h};
 		rendering_info.layerCount = 1;
 		rendering_info.colorAttachmentCount = 1;
 		rendering_info.pColorAttachments = &colour_attachment;

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/core.c

@@ -290,7 +290,7 @@ void G_PipelinesLoad(G_State *game) {
 	Vk_PipelineCreate(basic);
 }
 
-void G_CalculateCamera(G_Camera *camera, F32 aspect) {
+void G_CalulateCamera(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

@@ -1,6 +1,5 @@
 #if !defined(LD_GAME_CORE_H_)
 #define LD_GAME_CORE_H_
-#include "world.h"
 
 typedef struct G_Camera G_Camera;
 struct G_Camera {
@@ -19,18 +18,17 @@ 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_CalculateCamera(G_Camera *camera, F32 aspect);
+function void G_CalulateCamera(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/nav.c

@@ -6,7 +6,8 @@
 #define MAX_UNFINISHED 128
 
 typedef struct navSearchNodeState navSearchNodeState;
-struct navSearchNodeState{
+struct navSearchNodeState
+{
   bool visited;
   U64 distance;
   U32 shortest;
@@ -14,13 +15,16 @@ struct navSearchNodeState{
 };
 
 typedef struct navSearchState navSearchState;
-struct navSearchState{
+struct navSearchState
+{
   navSearchNodeState nodeStates[NAV_MAX_NODES];
 };
 
-navSearchState initState(U32 start, U32 meshSize) {
-  navSearchState state = {};
-  for(U32 i = 0; i < meshSize; i++) {
+navSearchState initState(U32 start, U32 meshSize)
+{
+  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(!startFound) {
+    if (checkNode.visited)
+    {
+      if (!startFound)
+      {
         *offset = i;
       }
       continue;
     }
     startFound = true;
-    if (lowest > checkNode.distance) {
+    if (lowest > checkNode.distance)
+    {
       lowest = cast(U32) checkNode.distance;
       lowestI = unfinishedIndexes[i];
     }
@@ -52,7 +61,8 @@ 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) {
+NavPath Nav_Path(NavMesh *mesh, U32 start, U32 end)
+{
   navSearchState state = initState(start, mesh->nodeCount);
   U32 unfinishedCount = 1;
   U32 unfinishedIndexes[NAV_MAX_NODES] = {start};
@@ -63,19 +73,26 @@ NavPath Nav_Path(NavMesh *mesh, U32 start, U32 end) {
   U32 unfinishedOffset = 0;
   U32 lowestNodeIndex = start;
   bool found = false;
-  while(!found) {
-    for(int connectionI = 0 ; connectionI < mesh->nodes[lowestNodeIndex].connectionCount; connectionI++) {
+  while (!found)
+  {
+    for (int connectionI = 0; connectionI < mesh->nodes[lowestNodeIndex].connectionCount; connectionI++)
+    {
       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);
-      distance += cast(U32) (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);
-      if(testNode->distance > distance) {
+      if (testNode->visited)
+      {
+        continue;
+      }
+      U32 distance = cast(U32)(state.nodeStates[lowestNodeIndex].distance + connection->Cost);
+      distance += cast(U32)(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);
+      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 +100,15 @@ 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/player.c

@@ -5,22 +5,33 @@
 void PlayerUpdate(SDL_Event *event, Player *player)
 {
   SDL_KeyboardEvent key = event->key;
-    switch(key.key) {
-      case SDLK_W: {
+  SDL_MouseButtonEvent mouseBtn = event->button;
+  switch (key.key)
+  {
+  case SDLK_W:
+  {
     player->pos.y += 10;
     break;
   }
-      case SDLK_A: {
+  case SDLK_A:
+  {
     player->pos.x -= 10;
     break;
   }
-      case SDLK_D: {
+  case SDLK_D:
+  {
     player->pos.x += 10;
     break;
   }
-      case SDLK_S: {
+  case SDLK_S:
+  {
     player->pos.y -= 10;
     break;
   }
   }
+  if (mouseBtn.clicks == 1)
+  {
+    // shooting
+    player->bulletsLoaded -= 1;
+  }
 }

code/game/impl/world.c

@@ -3,16 +3,20 @@
 #include "../player.h"
 #include <SDL3/SDL_events.h>
 
-void UpdateWorld(F32 delta, World *world) {
-  UpdateNPCs(delta, world);
+void UpdateWorld(F32 delta, World *world)
+{
+  // UpdateNPCs(delta, world);
 }
 
-void UpdateNPCs(F32 delta, World *world) {
-  for(U32 i = 0; i < world->npcCount; i++) {
+void UpdateNPCs(F32 delta, World *world)
+{
+  for (int i = 0; i < world->npcCount; i++)
+  {
     updateNPC(delta, &world->npcs[i], world);
   }
 }
 
-void ProcessEvents(SDL_Event *event, World *world) {
+void ProcessEvents(SDL_Event *event, World *world)
+{
   PlayerUpdate(event, &world->player);
 }

code/game/player.h

@@ -10,6 +10,7 @@ typedef struct Player Player;
 struct Player
 {
     V2f pos;
+    U32 bulletsLoaded;
 };
 
 function void PlayerUpdate(SDL_Event *event, Player *player);