Cleanup overworld.

src/dusk/assert/assert.h

@@ -126,4 +126,6 @@ void assertMemoryRangeMatchesImpl(
   assertTrue(strlen(str) <= len, message)
 
 #define assertStrLenMin(str, len, message) \
-  assertTrue(strlen(str) >= len, message)
+  assertTrue(strlen(str) >= len, message)
+
+// EOF

src/dusk/overworld/CMakeLists.txt

@@ -6,10 +6,9 @@
 # Sources
 target_sources(${DUSK_TARGET_NAME}
   PRIVATE
-    entity.c
     overworld.c
-    player.c
-    tile.c
 )
 
-# Subdirs
+# Subdirs
+add_subdirectory(entity)
+add_subdirectory(map)

src/dusk/overworld/entity/CMakeLists.txt

@@ -0,0 +1,15 @@
+# Copyright (c) 2025 Dominic Masters
+# 
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+# Sources
+target_sources(${DUSK_TARGET_NAME}
+  PRIVATE
+    entity.c
+    facing.c
+    player.c
+    npc.c
+)
+
+# Subdirs

src/dusk/overworld/entity/entity.c

@@ -8,11 +8,12 @@
 #include "entity.h"
 #include "assert/assert.h"
 #include "util/memory.h"
-#include "overworld.h"
+#include "overworld/overworld.h"
 
 entitycallback_t ENTITY_CALLBACKS[ENTITY_TYPE_COUNT] = {
-  { NULL, NULL },
+  { NULL, NULL, NULL },
-  { playerInit, playerUpdate }
+  { playerInit, playerUpdate, NULL },
+  { npcInit, npcUpdate, npcInteract }
 };
 
 entity_t ENTITY_TEST;
@@ -69,26 +70,11 @@ void entityMove(entity_t *ent, const facingdir_t dir) {
   entityTurn(ent, dir);
 
   uint8_t targetX = ent->x, targetY = ent->y;
-  switch(dir) {
+  facingDirAdd(ent->direction, &targetX, &targetY);
-    case FACING_DIRECTION_EAST:
+
-      if(ent->x >= OVERWORLD.mapWidth - 1) return;
+  // Check oob
-      targetX++;
+  if(targetX < 0 || targetX >= OVERWORLD.mapWidth) return;
-      break;
+  if(targetY < 0 || targetY >= OVERWORLD.mapHeight) return;
-    case FACING_DIRECTION_WEST:
-      if(ent->x == 0) return;
-      targetX--;
-      break;
-    case FACING_DIRECTION_NORTH:
-      if(ent->y >= OVERWORLD.mapHeight - 1) return;
-      targetY++;
-      break;
-    case FACING_DIRECTION_SOUTH:
-      if(ent->y == 0) return;
-      targetY--;
-      break;
-    default:
-      assertUnreachable("Invalid facing direction");
-  }
 
   // Check tile at target
   uint8_t i = 0;

src/dusk/overworld/entity/entity.h

@@ -6,28 +6,24 @@
  */
 
 #pragma once
+#include "facing.h"
 #include "player.h"
+#include "npc.h"
 
 typedef enum {
   ENTITY_TYPE_NULL,
   ENTITY_TYPE_PLAYER,
+  ENTITY_TYPE_NPC
 } entitytype_t;
 
-#define ENTITY_TYPE_COUNT 2
+#define ENTITY_TYPE_COUNT 3
 
 typedef struct {
   void (*init)(entity_t *);
   void (*update)(entity_t *);
+  void (*interact)(entity_t *);
 } entitycallback_t;
 
-typedef enum {
-  FACING_DIRECTION_SOUTH,
-  FACING_DIRECTION_EAST,
-  FACING_DIRECTION_NORTH,
-  FACING_DIRECTION_WEST
-} facingdir_t;
-#define FACING_DIRECTION_COUNT 4
-
 typedef struct _entity_t {
   uint8_t x, y;
   int8_t subX, subY;

src/dusk/overworld/entity/facing.c

@@ -0,0 +1,50 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "facing.h"
+#include "assert/assert.h"
+
+void facingDirGetRelative(const facingdir_t dir, int8_t *x, int8_t *y) {
+  assertNotNull(x, "X cannot be NULL");
+  assertNotNull(y, "Y cannot be NULL");
+
+  switch(dir) {
+    case FACING_DIRECTION_SOUTH:
+      *x = 0;
+      *y = -1;
+      break;
+
+    case FACING_DIRECTION_EAST:
+      *x = 1;
+      *y = 0;
+      break;
+
+    case FACING_DIRECTION_NORTH:
+      *x = 0;
+      *y = 1;
+      break;
+
+    case FACING_DIRECTION_WEST:
+      *x = -1;
+      *y = 0;
+      break;
+
+    default:
+      assertUnreachable("Invalid facing direction.");
+  }
+}
+
+void facingDirAdd(const facingdir_t dir, uint8_t *x, uint8_t *y) {
+  assertNotNull(x, "X cannot be NULL");
+  assertNotNull(y, "Y cannot be NULL");
+
+  int8_t dx, dy;
+  facingDirGetRelative(dir, &dx, &dy);
+  
+  *x += dx;
+  *y += dy;
+}

src/dusk/overworld/entity/facing.h

@@ -0,0 +1,36 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "dusk.h"
+
+typedef enum {
+  FACING_DIRECTION_SOUTH,
+  FACING_DIRECTION_EAST,
+  FACING_DIRECTION_NORTH,
+  FACING_DIRECTION_WEST
+} facingdir_t;
+
+#define FACING_DIRECTION_COUNT 4
+
+/**
+ * Converts a facing direction to a directional vector.
+ * 
+ * @param dir The direction to convert.
+ * @param x The x component of the vector.
+ * @param y The y component of the vector.
+ */
+void facingDirGetRelative(const facingdir_t dir, int8_t *x, int8_t *y);
+
+/**
+ * Adds a facing direction to a position.
+ * 
+ * @param dir The direction to add.
+ * @param x The x position to add to.
+ * @param y The y position to add to.
+ */
+void facingDirAdd(const facingdir_t dir, uint8_t *x, uint8_t *y);

src/dusk/overworld/entity/npc.c

@@ -0,0 +1,17 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "npc.h"
+
+void npcInit(entity_t *ent) {
+}
+
+void npcUpdate(entity_t *ent) {
+}
+
+void npcInteract(entity_t *ent) {
+}

src/dusk/overworld/entity/npc.h

@@ -0,0 +1,36 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "dusk.h"
+
+typedef struct _entity_t entity_t;
+
+typedef struct {
+  int32_t nothing;
+} npc_t;
+
+/**
+ * Handles initialization of an NPC.
+ * 
+ * @param ent The entity to initialize as an NPC.
+ */
+void npcInit(entity_t *ent);
+
+/**
+ * Handles updating an NPC.
+ * 
+ * @param ent The entity to update as an NPC.
+ */
+void npcUpdate(entity_t *ent);
+
+/**
+ * Handles interaction with an NPC.
+ * 
+ * @param ent The entity to interact with.
+ */
+void npcInteract(entity_t *ent);

src/dusk/overworld/entity/player.c

@@ -5,7 +5,7 @@
  * https://opensource.org/licenses/MIT
  */
 
-#include "entity.h"
+#include "overworld/overworld.h"
 #include "assert/assert.h"
 #include "input.h"
 
@@ -26,6 +26,7 @@ void playerUpdate(entity_t *ent) {
     entityMove(ent, FACING_DIRECTION_NORTH);
   } else if(inputIsDown(INPUT_DOWN)) {
     entityMove(ent, FACING_DIRECTION_SOUTH);
+  } else if(inputWasPressed(INPUT_ACCEPT)) {
   }
 
 }

src/dusk/overworld/map/CMakeLists.txt

@@ -0,0 +1,12 @@
+# Copyright (c) 2025 Dominic Masters
+# 
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+# Sources
+target_sources(${DUSK_TARGET_NAME}
+  PRIVATE
+    tile.c
+)
+
+# Subdirs

src/dusk/overworld/map/map.c

@@ -0,0 +1,14 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "map.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+
+void mapInit(map_t *map) {
+  memoryZero(map, sizeof(map_t));
+}

src/dusk/overworld/map/map.h

@@ -0,0 +1,18 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "tile.h"
+#include "overworld/overworlddefs.h"
+
+typedef struct {
+  tileid_t tileIds[OVERWORLD_TILE_COUNT_MAX];
+  tiledata_t tileData[OVERWORLD_TILE_COUNT_MAX];
+  uint8_t width, height, layerCount;
+} map_t;
+
+void mapInit(map_t *map);

src/dusk/overworld/overworld.c

@@ -29,6 +29,9 @@ void overworldInit() {
   );
 
   entityInit(OVERWORLD.entities + OVERWORLD.entityCount++, ENTITY_TYPE_PLAYER);
+  entityInit(OVERWORLD.entities + OVERWORLD.entityCount++, ENTITY_TYPE_NPC);
+  OVERWORLD.entities[1].x = 2;
+  OVERWORLD.entities[1].y = 2;
 }
 
 void overworldSceneInit() {

src/dusk/overworld/overworld.h

@@ -7,8 +7,8 @@
 
 #pragma once
 #include "overworlddefs.h"
-#include "entity.h"
+#include "overworld/entity/entity.h"
-#include "tile.h"
+#include "overworld/map/tile.h"
 
 typedef struct {
   entity_t entities[OVERWORLD_ENTITY_COUNT_MAX];

src/duskgl/display/shader/data/entities.c

@@ -14,7 +14,7 @@ shaderbuffer_t ENTITIES_BUFFER;
 entitiesdata_t ENTITIES_DATA;
 
 void entitiesInit() {
-  memset(&ENTITIES_DATA, 0, sizeof(entitiesdata_t));
+  memoryZero(&ENTITIES_DATA, sizeof(entitiesdata_t));
   shaderBufferInit(&ENTITIES_BUFFER, sizeof(overworld_t));
 }
 

src/duskgl/overworld/overworld.c

@@ -12,7 +12,9 @@
 
 void overworldRender() {
   mapShaderUse();
-  quadRender(OVERWORLD.mapWidth*OVERWORLD.mapHeight*OVERWORLD.mapLayerCount);
+  quadRender(
+    OVERWORLD.mapWidth * OVERWORLD.mapHeight * OVERWORLD.mapLayerCount
+  );
 
   entityShaderUse();
   quadRender(OVERWORLD.entityCount);