feat: Added basic shooting

code/core/impl/math.c

@@ -222,3 +222,12 @@ F32 Random_Bilateral(Random *rnd) {
 	F32 result = -1.0f + (2.0f * Random_Unilateral(rnd));
 	return result;
 }
+
+V2f V2f_Clip(V2f screen_xy, V2f screen_size) {
+    V2f result;
+    result.x = ((screen_xy.x / screen_size.w) * 2.0f) - 1.0f;
+    result.y = ((screen_xy.y / screen_size.h) * 2.0f) - 1.0f;
+
+    return result;
+}
+

code/core/math.h

@@ -147,4 +147,6 @@ function U32 Random_U32(Random *rnd, U32 min, U32 max);
 function F32 Random_Unilateral(Random *rnd);
 function F32 Random_Bilateral(Random *rnd);
 
+V2f V2f_Clip(V2f screen_xy, V2f screen_size);
+
 #endif  // LD_CORE_MATH_H_

code/first.c

@@ -27,6 +27,9 @@
 #include "game/impl/bandit.c"
 #include "game/testnavmesh.h"
 
+const int width = 1280;
+const int height = 720;
+
 int main(int argc, char **argv)
 {
 	(void)argc;
@@ -80,16 +83,12 @@ int main(int argc, char **argv)
       npc1->collision.pos.x = 15;
       npc1->collision.pos.y = 15;
       npc1->collision.size.x = 1;
-      npc1->collision.size.y = 1;
+      npc1->collision.size.y = 2;
       npc1->name = S("Matt");
       npc1->mode = NPC_ACTION_WAITING;
       npc1->waitTime = 0;
-      npc1->maxWaitTime = 5;
+      npc1->maxWaitTime = 5000;
       npc1->currentNavNode = 0;
-      npc1->collision.pos.x = 15;
-      npc1->collision.pos.y = 15;
-      npc1->collision.size.x = 10;
-      npc1->collision.size.y = 10;
     }
 
     Bandit *badman = &world->bandit;
@@ -107,6 +106,7 @@ int main(int argc, char **argv)
 
 		world->navMesh = &TestNavMesh;
 		world->npcPOI[0] = 100;
+    world->player.world = world;
 		world->player.pos.x = 0;
 		world->player.pos.y = 0;
 		world->player.bulletsLoaded = PLAYER_BULLET_COUNT;
@@ -126,7 +126,11 @@ int main(int argc, char **argv)
 			{
 				running = false;
 			}
-
+      V3f projection = G_CameraUnproject(&game->camera, V2f_Clip(
+        V2F(e.button.x, e.button.y),
+        V2F(width, height)
+      ));
+      game->world->mouseProjected = V2F(projection.x, projection.y);
       ProcessEvents(&e, game->world);
 		}
 

code/game/aabb.h

@@ -13,5 +13,6 @@ struct AABB
 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);
+function V2f AABB_Centre(AABB a);
 
 #endif // LD_GAME_AABB_H_

code/game/impl/aabb.c

@@ -34,3 +34,7 @@ bool AABB_Slab(V2f origin, V2f point, AABB a)
 
   return tMax >= tMin;
 }
+
+V2f AABB_Centre(AABB a) {
+  return V2F(a.pos.x + a.size.x/2, a.pos.y + a.size.y/2);
+}

code/game/impl/player.c

@@ -42,8 +42,8 @@ void PlayerInput(SDL_Event *event, Player *player)
       // shooting
       player->bulletsLoaded -= 1;
       player->controls.shot = true;
-      player->shotPos = V2F(mouseBtn.x, mouseBtn.y);
-      printf("shot %f %f\n", mouseBtn.x, mouseBtn.y);
+      player->shotPos = player->world->mouseProjected;
+      printf("shot %f %f\n", player->shotPos.x, player->shotPos.y);
     } else if(player->reloadTimer == 0) {
       player->reloadTimer = PLAYER_RELOAD_TIME;
       printf("reloading\n");

code/game/impl/world.c

@@ -1,6 +1,7 @@
 #include "../world.h"
 #include "../npc.h"
 #include "../player.h"
+#include "../aabb.h"
 #include <SDL3/SDL_events.h>
 
 void UpdateWorld(F32 delta, World *world)
@@ -30,8 +31,9 @@ void ProcessEvents(SDL_Event *event, World *world)
 void RenderWorld(World *world, D_Context *draw) {
   for(U32 i = 0; i < world->npcCount; i++) {
     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);
+    V2f drawPos = AABB_Centre(npc.collision);
+    D_Rect(draw, drawPos.x, drawPos.y, .texture = 1);
+    D_Rect(draw, drawPos.x, drawPos.y, .texture = 0, .dim = npc.collision.size, .flags = D_RECT_IGNORE_ASPECT);
   }
   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);

code/game/player.h

@@ -22,7 +22,9 @@ struct ControlState {
 typedef struct Player Player;
 struct Player
 {
+    World *world;
     V2f pos;
+    World_Area currentArea;
     U32 bulletsLoaded;
     ControlState controls;
     V2f shotPos;

code/game/world.h

@@ -1,7 +1,6 @@
 #if !defined(LD_GAME_WORLD_H_)
 #define LD_GAME_WORLD_H_
 
-#include "player.h"
 #include "npc.h"
 #include "bandit.h"
 #include "../core/math.h"
@@ -14,10 +13,13 @@ enum World_Area {
 };
 
 typedef struct World World;
+#include "player.h"
+
 struct World {
   //// Static stuff
   NavMesh *navMesh;
   Random random;
+  V2f mouseProjected;
 
   //// Player
 	Player player;