load map first pass

src/asset/asset.c

@@ -20,7 +20,10 @@ assetdef_t ASSET_DEFINITIONS[ASSET_TYPE_COUNT] = {
   },
   [ASSET_TYPE_CONFIG] = {
     "DCF", assetConfigLoad, assetConfigDispose
-  }
+  },
+  [ASSET_TYPE_RPG_MAP] = {
+    "DRM", assetRPGMapLoad, assetRPGMapDispose
+  },
 };
 
 errorret_t assetInit(asset_t *asset, const char_t *filename) {

src/asset/asset.h

@@ -13,6 +13,7 @@
 #include "asset/type/assetpaletteimage.h"
 #include "asset/type/assetalphaimage.h"
 #include "asset/type/assetconfig.h"
+#include "asset/type/assetrpgmap.h"
 
 #define ASSET_HEADER_SIZE 3
 #define ASSET_REFERENCE_COUNT_MAX 8
@@ -33,6 +34,7 @@ typedef enum {
   ASSET_TYPE_PALETTE_IMAGE,
   ASSET_TYPE_ALPHA_IMAGE,
   ASSET_TYPE_CONFIG,
+  ASSET_TYPE_RPG_MAP,
 
   ASSET_TYPE_COUNT
 } assettype_t;
@@ -47,8 +49,9 @@ typedef struct asset_s {
 
   union {
     assetpaletteimage_t paletteImage;
-    assetalphaimager_t alphaImage;
+    assetalphaimage_t alphaImage;
     assetconfig_t config;
+    assetrpgmap_t rpgMap;
   };
 } asset_t;
 

src/asset/type/CMakeLists.txt

@@ -9,4 +9,5 @@ target_sources(${DUSK_TARGET_NAME}
     assetalphaimage.c
     assetconfig.c
     assetpaletteimage.c
+    assetrpgmap.c
 )

src/asset/type/assetalphaimage.h

@@ -27,7 +27,7 @@ typedef struct {
 
 typedef struct {
   texture_t texture;
-} assetalphaimager_t;
+} assetalphaimage_t;
 
 /**
  * Loads an alpha image asset from the given asset structure. The asset must

src/asset/type/assetrpgmap.c

@@ -0,0 +1,98 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "assetrpgmap.h"
+#include "asset/asset.h"
+#include "assert/assert.h"
+#include "display/tileset/tilesetlist.h"
+
+errorret_t assetRPGMapLoad(asset_t *asset) {
+  assertNotNull(asset, "Asset cannot be NULL.");
+  assertTrue(
+    asset->type == ASSET_TYPE_RPG_MAP,
+    "Asset is not of type ASSET_TYPE_RPG_MAP."
+  );
+  
+  assetrpgmapraw_t raw;
+
+  // Read map header info
+  zip_int64_t bytesRead = zip_fread(
+    asset->file, &raw.header, sizeof(assetrpgmapheader_t)
+  );
+  if(bytesRead != sizeof(raw.header)) {
+    errorThrow("Failed to read RPG map header.");
+  }
+
+  if(raw.header.mapWidth == 0 || raw.header.mapWidth > MAP_WIDTH_MAX) {
+    errorThrow("Invalid RPG map width.");
+  }
+
+  if(raw.header.mapHeight == 0 || raw.header.mapHeight > MAP_HEIGHT_MAX) {
+    errorThrow("Invalid RPG map height.");
+  }
+
+  if(raw.header.tilesetCount == 0) {
+    errorThrow("Invalid RPG map tileset count.");
+  }
+
+  if(raw.header.tilesetCount > ASSET_RPG_MAP_TILESET_COUNT_MAX) {
+    errorThrow("Invalid RPG map tileset count.");
+  }
+
+  if(raw.header.tileLayerCount == 0) {
+    errorThrow("Invalid RPG map layer count.");
+  }
+
+  if(raw.header.tileLayerCount > MAP_LAYER_COUNT_MAX) {
+    errorThrow("Invalid RPG map layer count.");
+  }
+
+  // Read layers
+  for(uint32_t layer = 0; layer < raw.header.tileLayerCount; layer++) {
+    // Read width * height tiles
+    bytesRead = zip_fread(
+      asset->file,
+      &raw.layers[layer].tiles,
+      sizeof(assetrpgmaptile_t) * raw.header.mapWidth * raw.header.mapHeight
+    );
+    if(bytesRead != (
+      sizeof(assetrpgmaptile_t) * raw.header.mapWidth * raw.header.mapHeight
+    )) errorThrow("Failed to read RPG map layer %u.", layer);
+  }
+
+  // For each tileset
+  for(uint32_t tileset = 0; tileset < raw.header.tilesetCount; tileset++) {
+    // Read tileset
+    bytesRead = zip_fread(
+      asset->file,
+      &raw.tilesets[tileset],
+      sizeof(assetrpgmaptileset_t)
+    );
+    if(bytesRead != sizeof(assetrpgmaptileset_t)) {
+      errorThrow("Failed to read RPG map tileset %u.", tileset);
+    }
+  }
+
+  // Map data is loaded, we can load it into the map structure.
+  mapInit(&asset->rpgMap.map);
+
+  entity_t *ent;
+  ent = mapEntityAdd(&asset->rpgMap.map);
+  entityInit(ent, ENTITY_TYPE_PLAYER, &asset->rpgMap.map);
+
+  errorOk();
+}
+
+errorret_t assetRPGMapDispose(asset_t *asset) {
+  assertNotNull(asset, "Asset cannot be NULL.");
+  assertTrue(
+    asset->type == ASSET_TYPE_RPG_MAP,
+    "Asset is not of type ASSET_TYPE_RPG_MAP."
+  );
+
+  errorOk();
+}

src/asset/type/assetrpgmap.h

@@ -0,0 +1,64 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+
+#pragma once
+#include "error/error.h"
+#include "rpg/world/map.h"
+
+typedef struct asset_s asset_t;
+
+#define ASSET_RPG_MAP_TILESET_COUNT_MAX 16
+
+#pragma pack(push, 1)
+typedef struct {
+  uint32_t mapWidth;
+  uint32_t mapHeight;
+  uint32_t tilesetCount;
+  uint32_t tileLayerCount;
+} assetrpgmapheader_t;
+
+typedef struct {
+  uint32_t firstGid;
+  uint32_t tilesetIndex;
+} assetrpgmaptileset_t;
+
+typedef struct {
+  uint32_t tilesetIndex;
+} assetrpgmaptile_t;
+
+typedef struct {
+  assetrpgmaptile_t tiles[MAP_TILE_COUNT_MAX];
+} assetrpgmaplayer_t;
+
+typedef struct {
+  assetrpgmapheader_t header;
+  assetrpgmaplayer_t layers[MAP_LAYER_COUNT_MAX];
+  assetrpgmaptileset_t tilesets[ASSET_RPG_MAP_TILESET_COUNT_MAX];
+} assetrpgmapraw_t;
+#pragma pack(pop)
+
+typedef struct {
+  map_t map;
+} assetrpgmap_t;
+
+/**
+ * Loads an RPG map asset from the given asset structure. The asset must be of
+ * type ASSET_TYPE_RPG_MAP and must be loaded.
+ * 
+ * @param asset The asset to load the RPG map from.
+ * @return An error code.
+ */
+errorret_t assetRPGMapLoad(asset_t *asset);
+
+/**
+ * Disposes of an RPG map asset, freeing any allocated resources.
+ * 
+ * @param asset The asset to dispose of.
+ * @return An error code.
+ */
+errorret_t assetRPGMapDispose(asset_t *asset);

src/display/scene/overworld/sceneoverworld.c

@@ -37,9 +37,11 @@ errorret_t sceneOverworldInit(void) {
 }
 
 void sceneOverworldUpdate(void) {
+  if(RPG.map == NULL) return;
+
   // Move camera to player.
-  const entity_t *start = &testMap.entities[0];
-  const entity_t *end = &testMap.entities[testMap.entityCount];
+  const entity_t *start = &RPG.map->entities[0];
+  const entity_t *end = &RPG.map->entities[RPG.map->entityCount];
   while(start < end) {
     if(start->type == ENTITY_TYPE_PLAYER) {
       SCENE_OVERWORLD.camera.lookat.target[0] = start->position[0];
@@ -70,7 +72,7 @@ void sceneOverworldRender(void) {
 
   cameraPushMatrix(&SCENE_OVERWORLD.camera);
 
-  sceneOverworldRenderMap(&testMap);
+  if(RPG.map != NULL) sceneOverworldRenderMap(RPG.map);
 
   spriteBatchFlush();
   cameraPopMatrix();

src/display/scene/overworld/sceneoverworld.h

@@ -7,7 +7,7 @@
 
 #pragma once
 #include "display/camera.h"
-#include "rpg/world/map.h"
+#include "rpg/rpg.h"
 #include "error/error.h"
 
 typedef struct {

src/rpg/rpg.c

@@ -6,28 +6,44 @@
  */
 
 #include "rpg.h"
-
 #include "rpg/world/map.h"
+#include "util/memory.h"
+#include "asset/assetmanager.h"
 
-map_t testMap;
+rpg_t RPG;
+
+asset_t *asset;
+ref_t assetRef;
 
 void rpgInit() {
-  mapInit(&testMap);
-  testMap.width = 2;
-  testMap.height = 2;
-  for(uint32_t i = 0; i < testMap.width * testMap.height; i++) {
-    testMap.base.tiles[i].id = 1;
+  memoryZero(&RPG, sizeof(RPG));
+
+  errorret_t ret = assetManagerLoadAsset("map/untitled.drm", &asset, &assetRef);
+  if(ret.code != ERROR_OK) {
+    errorPrint(ret);
+    errorCatch(ret);
+    return;
   }
+  RPG.map = &asset->rpgMap.map;
 
-  entity_t *ent = mapEntityAdd(&testMap);
-  entityInit(ent, ENTITY_TYPE_PLAYER, &testMap);
+  // mapInit(&testMap);
+  // testMap.width = 2;
+  // testMap.height = 2;
+  // for(uint32_t i = 0; i < testMap.width * testMap.height; i++) {
+  //   testMap.base.tiles[i].id = 1;
+  // }
 
-  entity_t *npc = mapEntityAdd(&testMap);
-  entityInit(npc, ENTITY_TYPE_NPC, &testMap);
-  npc->position[0] = 32.0f;
-  npc->position[1] = 32.0f;
+  // entity_t *ent = mapEntityAdd(&testMap);
+  // entityInit(ent, ENTITY_TYPE_PLAYER, &testMap);
+
+  // entity_t *npc = mapEntityAdd(&testMap);
+  // entityInit(npc, ENTITY_TYPE_NPC, &testMap);
+  // npc->position[0] = 32.0f;
+  // npc->position[1] = 32.0f;
 }
 
 void rpgUpdate() {
-  mapUpdate(&testMap);
+  if(RPG.map != NULL) {
+    mapUpdate(RPG.map);
+  }
 }

src/rpg/rpg.h

@@ -6,6 +6,13 @@
  */
 
 #pragma once
+#include "rpg/world/map.h"
+
+typedef struct {
+  map_t *map;
+} rpg_t;
+
+extern rpg_t RPG;
 
 /**
  * Initializes the RPG subsystem.

src/rpg/world/map.h

@@ -13,6 +13,7 @@
 #define MAP_WIDTH_MAX 64
 #define MAP_HEIGHT_MAX 64
 #define MAP_TILE_COUNT_MAX (MAP_WIDTH_MAX * MAP_HEIGHT_MAX)
+#define MAP_LAYER_COUNT_MAX 2
 
 typedef struct {
   uint8_t id;

tools/assetstool/main.py

@@ -2,6 +2,7 @@ import sys, os
 from args import inputAssets, args
 from processasset import processAsset
 from processpalette import processPaletteList
+from processtileset import processTilesetList
 from assethelpers import getBuiltAssetsRelativePath
 import zipfile
 
@@ -29,6 +30,7 @@ with zipfile.ZipFile(outputFileName, 'w') as zipf:
 
 # Generate additional headers.
 processPaletteList()
+processTilesetList()
 
 # Finalize build
 if args.build_type == 'header':

tools/assetstool/processmap.py

@@ -109,42 +109,21 @@ def processMap(asset):
 
   # Now we have our layers all parsed out.
   data = bytearray()
-  data += b'drm'  # Dusk RPG Map
+  data += b'DRM'  # Dusk RPG Map
   data += mapWidth.to_bytes(4, 'little')   # Map width in tiles
   data += mapHeight.to_bytes(4, 'little')  # Map height in tiles
   data += len(tilesets).to_bytes(4, 'little')  # Number of tilesets
   data += len(tileLayers).to_bytes(4, 'little')  # Number of layers
   
-  # For each tileset
-  for tileset in tilesets:
-    data += tileset['firstGid'].to_bytes(4, 'little') # First GID
-  
   # For each layer...
   for layer in tileLayers:
     for gid in layer['data']:
-      # Get tileset for this gid, since the tilesets are already sorted we can
-      # simply find the first one that has firstGid <= gid
-      if gid == 0:
-        # Empty tile
-        localIndex = 0xFF
-        tilesetIndex = 0xFFFFFFFF
-      else:
+      data += gid.to_bytes(4, 'little')  # Tileset index
+
+  # For each tileset
   for tileset in tilesets:
-          if gid >= tileset['firstGid']:
-            tilesetIndex = tilesets.index(tileset)
-            localIndex = gid - tileset['firstGid']
-            break
-        else:
-          # If no tileset was found, this is an invalid gid
-          print(f"Error: Invalid tile GID {gid} in {asset['path']}")
-          sys.exit(1)
-
-      if localIndex > 255:
-        print(f"Error: Local tile index {localIndex} exceeds 255 in {asset['path']}")
-        sys.exit(1)
-      
-      data += tilesetIndex.to_bytes(4, 'little')  # Tileset index
-      data += localIndex.to_bytes(1, 'little')  # Local tile index
+    data += tileset['firstGid'].to_bytes(4, 'little') # First GID
+    data += tileset['tileset']['tilesetIndex'].to_bytes(4, 'little') # Tileset index
 
   relative = getAssetRelativePath(asset['path'])
   fileNameWithoutExt = os.path.splitext(os.path.basename(asset['path']))[0]

tools/assetstool/processtileset.py

@@ -8,6 +8,8 @@ from args import args
 from xml.etree import ElementTree
 from assetcache import assetGetCache, assetCache
 
+tilesets = []
+
 def loadTilesetFromTSX(asset):
   # Load the TSX file
   tree = ElementTree.parse(asset['path'])
@@ -139,9 +141,35 @@ def processTileset(asset):
   with open(outputFile, 'w') as f:
     f.write(data)
 
-  return assetCache(asset['path'], {
+
+  tileset = {
     "files": [],
     "image": tilesetData['image'],
-    "headerFile": outputFile,
+    "headerFile": os.path.relpath(outputFile, args.headers_dir),
+    "tilesetName": tilesetName,
+    "tilesetNameUpper": tilesetNameUpper,
+    "tilesetIndex": len(tilesets),
+    "tilesetData": tilesetData,
     "files": tilesetData['image']['files'],
-  })
+  }
+
+  tilesets.append(tileset)
+  return assetCache(asset['path'], tileset)
+
+def processTilesetList():
+  data = f"// Tileset List Generated at {datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')}\n"
+  data += f"#pragma once\n"
+  for tileset in tilesets:
+    data += f"#include \"{tileset['headerFile']}\"\n"
+  data += f"\n"
+  data += f"#define TILESET_LIST_COUNT {len(tilesets)}\n\n"
+  data += f"static const tileset_t* TILESET_LIST[TILESET_LIST_COUNT] = {{\n"
+  for tileset in tilesets:
+    data += f"  &TILESET_{tileset['tilesetNameUpper']},\n"
+  data += f"}};\n"
+
+  # Write header.
+  outputFile = os.path.join(args.headers_dir, "display", "tileset", f"tilesetlist.h")
+  os.makedirs(os.path.dirname(outputFile), exist_ok=True)
+  with open(outputFile, 'w') as f:
+    f.write(data)