RPG stuff

src/dusk/engine/engine.c

@@ -51,6 +51,7 @@ errorret_t engineInit(const int32_t argc, const char_t **argv) {
 
   consolePrint("Engine initialized");
   sceneSet(SCENE_TYPE_OVERWORLD);
+  
 
   errorOk();
 }

src/dusk/rpg/overworld/chunk.h

@@ -20,6 +20,7 @@ typedef struct chunk_s {
   tile_t tiles[CHUNK_TILE_COUNT];
 
   spritebatchsprite_t sprites[CHUNK_TILE_COUNT];
+  color_t testColor;
   uint32_t spriteCount;
   
   // uint8_t meshCount;

src/dusk/rpg/overworld/map.c

@@ -16,68 +16,86 @@ map_t MAP;
 
 errorret_t mapInit() {
   memoryZero(&MAP, sizeof(map_t));
-  errorOk();
-}
-
-bool_t mapIsLoaded() {
-  return MAP.filePath[0] != '\0';
-}
-
-errorret_t mapLoad(const char_t *path, const chunkpos_t position) {
-  assertStrLenMin(path, 1, "Map file path cannot be empty");
-  assertStrLenMax(path, MAP_FILE_PATH_MAX - 1, "Map file path too long");
-
-  if(stringCompare(MAP.filePath, path) == 0) {
-    // Same map, no need to reload
-    errorOk();
-  }
-
-  chunkindex_t i;
-  
-  // Unload all loaded chunks
-  if(mapIsLoaded()) {
-    for(i = 0; i < MAP_CHUNK_COUNT; i++) {
-      mapChunkUnload(&MAP.chunks[i]);
-    }
-  }
-
-  // Store the map file path
-  stringCopy(MAP.filePath, path, MAP_FILE_PATH_MAX);
-
-  // Determine directory path (it is dirname)
-  stringCopy(MAP.dirPath, path, MAP_FILE_PATH_MAX);
-  char_t *last = stringFindLastChar(MAP.dirPath, '/');
-  if(last == NULL) errorThrow("Invalid map file path");
-
-  // Store filename, sans extension
-  stringCopy(MAP.fileName, last + 1, MAP_FILE_PATH_MAX);
-  *last = '\0'; // Terminate to get directory path
-
-  last = stringFindLastChar(MAP.fileName, '.');
-  if(last == NULL) errorThrow("Map file name has no extension");
-  *last = '\0'; // Terminate to remove extension
-
-  // Reset map position
-  MAP.chunkPosition = position;
 
   // Perform "initial load"
-  i = 0;
+  MAP.loaded = true;
+  int32_t i = 0;
   for(chunkunit_t z = 0; z < MAP_CHUNK_DEPTH; z++) {
     for(chunkunit_t y = 0; y < MAP_CHUNK_HEIGHT; y++) {
       for(chunkunit_t x = 0; x < MAP_CHUNK_WIDTH; x++) {
         chunk_t *chunk = &MAP.chunks[i];
-        chunk->position.x = x + position.x;
-        chunk->position.y = y + position.y;
-        chunk->position.z = z + position.z;
+        chunk->position.x = x + MAP.chunkPosition.x;
+        chunk->position.y = y + MAP.chunkPosition.y;
+        chunk->position.z = z + MAP.chunkPosition.z;
         MAP.chunkOrder[i] = chunk;
         errorChain(mapChunkLoad(chunk));
         i++;
       }
     }
   }
+
   errorOk();
 }
 
+bool_t mapIsLoaded() {
+  return MAP.loaded;
+}
+
+// errorret_t mapLoad(const char_t *path, const chunkpos_t position) {
+//   assertStrLenMin(path, 1, "Map file path cannot be empty");
+//   assertStrLenMax(path, MAP_FILE_PATH_MAX - 1, "Map file path too long");
+
+//   if(stringCompare(MAP.filePath, path) == 0) {
+//     // Same map, no need to reload
+//     errorOk();
+//   }
+
+//   chunkindex_t i;
+  
+//   // Unload all loaded chunks
+//   if(mapIsLoaded()) {
+//     for(i = 0; i < MAP_CHUNK_COUNT; i++) {
+//       mapChunkUnload(&MAP.chunks[i]);
+//     }
+//   }
+
+//   // Store the map file path
+//   stringCopy(MAP.filePath, path, MAP_FILE_PATH_MAX);
+
+//   // Determine directory path (it is dirname)
+//   stringCopy(MAP.dirPath, path, MAP_FILE_PATH_MAX);
+//   char_t *last = stringFindLastChar(MAP.dirPath, '/');
+//   if(last == NULL) errorThrow("Invalid map file path");
+
+//   // Store filename, sans extension
+//   stringCopy(MAP.fileName, last + 1, MAP_FILE_PATH_MAX);
+//   *last = '\0'; // Terminate to get directory path
+
+//   last = stringFindLastChar(MAP.fileName, '.');
+//   if(last == NULL) errorThrow("Map file name has no extension");
+//   *last = '\0'; // Terminate to remove extension
+
+//   // Reset map position
+//   MAP.chunkPosition = position;
+
+//   // Perform "initial load"
+//   i = 0;
+//   for(chunkunit_t z = 0; z < MAP_CHUNK_DEPTH; z++) {
+//     for(chunkunit_t y = 0; y < MAP_CHUNK_HEIGHT; y++) {
+//       for(chunkunit_t x = 0; x < MAP_CHUNK_WIDTH; x++) {
+//         chunk_t *chunk = &MAP.chunks[i];
+//         chunk->position.x = x + position.x;
+//         chunk->position.y = y + position.y;
+//         chunk->position.z = z + position.z;
+//         MAP.chunkOrder[i] = chunk;
+//         errorChain(mapChunkLoad(chunk));
+//         i++;
+//       }
+//     }
+//   }
+//   errorOk();
+// }
+
 errorret_t mapPositionSet(const chunkpos_t newPos) {
   if(!mapIsLoaded()) errorThrow("No map loaded");
 
@@ -177,21 +195,79 @@ void mapChunkUnload(chunk_t* chunk) {
     entity->type = ENTITY_TYPE_NULL;
   }
 
-  for(uint8_t i = 0; i < chunk->meshCount; i++) {
-    if(chunk->meshes[i].vertexCount == 0) continue;
-    meshDispose(&chunk->meshes[i]);
-  }
+  // for(uint8_t i = 0; i < chunk->meshCount; i++) {
+  //   if(chunk->meshes[i].vertexCount == 0) continue;
+  //   meshDispose(&chunk->meshes[i]);
+  // }
 }
 
 errorret_t mapChunkLoad(chunk_t* chunk) {
   if(!mapIsLoaded()) errorThrow("No map loaded");
-
-  char_t buffer[64];
-
-  // TODO: Can probably move this to asset load logic?
-  chunk->meshCount = 0;
-  memoryZero(chunk->meshes, sizeof(chunk->meshes));
+  
+  color_t color = COLOR_WHITE;
+  if(chunk->position.y % 2 == 0) {
+    if(chunk->position.x % 2 == 0) {
+      color = COLOR_BLACK;
+    } else {
+      color = COLOR_WHITE;
+    }
+  } else {
+    if(chunk->position.x % 2 == 0) {
+      color = COLOR_WHITE;
+    } else {
+      color = COLOR_BLACK;
+    }
+  }
+  // if(chunk->position.x == 0 && chunk->position.y == 0 && chunk->position.z == 0) {
+  //   color = COLOR_RED;
+  // }
+  chunk->testColor = color;
+  
+  memorySet(chunk->tiles, TILE_SHAPE_GROUND, sizeof(chunk->tiles));
+  memoryZero(chunk->sprites, sizeof(chunk->sprites));
   memorySet(chunk->entities, 0xFF, sizeof(chunk->entities));
+  chunk->spriteCount = 0;
+
+  if(chunk->position.z != 0) {
+    errorOk();
+  }
+
+  // Set Chunk sprites.
+  uint32_t i = 0;
+  vec3 spriteMin = {
+    chunk->position.x * CHUNK_WIDTH,
+    chunk->position.y * CHUNK_HEIGHT,
+    chunk->position.z * CHUNK_DEPTH
+  };
+  for(uint8_t x = 0; x < CHUNK_WIDTH; x++) {
+    for(uint8_t y = 0; y < CHUNK_HEIGHT; y++) {
+      glm_vec3_copy(spriteMin, chunk->sprites[i].min);
+      glm_vec3_add(
+        chunk->sprites[i].min,
+        (vec3){ x, y, 0 },
+        chunk->sprites[i].min
+      );
+
+      glm_vec3_copy(chunk->sprites[i].min, chunk->sprites[i].max);
+      glm_vec3_add(
+        chunk->sprites[i].max,
+        (vec3){ 1, 1, 0 },
+        chunk->sprites[i].max
+      );
+
+      glm_vec2_copy((vec2){ 0, 0 }, chunk->sprites[i].uvMin);
+      glm_vec2_copy((vec2){ 1, 1 }, chunk->sprites[i].uvMax);
+
+      chunk->spriteCount++;
+      i++;
+    }
+  }
+
+  // char_t buffer[64];
+  // TODO: Can probably move this to asset load logic?
+  // chunk->meshCount = 0;
+  // memoryZero(chunk->meshes, sizeof(chunk->meshes));
+  // memorySet(chunk->entities, 0xFF, sizeof(chunk->entities));
 
   // Load.
   errorOk();

src/dusk/rpg/overworld/map.h

@@ -11,9 +11,10 @@
 #define MAP_FILE_PATH_MAX 128
 
 typedef struct map_s {
-  char_t filePath[MAP_FILE_PATH_MAX];
-  char_t dirPath[MAP_FILE_PATH_MAX];
-  char_t fileName[MAP_FILE_PATH_MAX];
+  // char_t filePath[MAP_FILE_PATH_MAX];
+  // char_t dirPath[MAP_FILE_PATH_MAX];
+  // char_t fileName[MAP_FILE_PATH_MAX];
+  bool_t loaded;
 
   chunk_t chunks[MAP_CHUNK_COUNT];
   chunk_t *chunkOrder[MAP_CHUNK_COUNT];
@@ -43,10 +44,10 @@ bool_t mapIsLoaded();
  * @param position The initial chunk position.
  * @return An error code.
  */
-errorret_t mapLoad(
-  const char_t *path,
-  const chunkpos_t position
-);
+// errorret_t mapLoad(
+//   const char_t *path,
+//   const chunkpos_t position
+// );
 
 /**
  * Updates the map.

src/dusk/rpg/overworld/tile.h

@@ -12,7 +12,7 @@
 typedef enum {
   TILE_SHAPE_NULL,
   
-  TILE_SHAPE_SOLID,
+  TILE_SHAPE_GROUND,
   TILE_SHAPE_RAMP_NORTH,
   TILE_SHAPE_RAMP_SOUTH,
   TILE_SHAPE_RAMP_EAST,

src/dusk/rpg/rpg.c

@@ -26,14 +26,16 @@ errorret_t rpgInit(void) {
   rpgCameraInit();
   rpgTextboxInit();
 
+  // Init world
+  errorChain(mapPositionSet((chunkpos_t){ 0, 0, 0 }));
+
   // TEST: Create some entities.
   uint8_t entIndex = entityGetAvailable();
   assertTrue(entIndex != 0xFF, "No available entity slots!.");
   entity_t *ent = &ENTITIES[entIndex];
   entityInit(ent, ENTITY_TYPE_PLAYER);
-  // RPG_CAMERA.mode = RPG_CAMERA_MODE_FOLLOW_ENTITY;
-  // RPG_CAMERA.followEntity.followEntityId = ent->id;
-  ent->position.x = 2, ent->position.y = 2;
+  RPG_CAMERA.mode = RPG_CAMERA_MODE_FOLLOW_ENTITY;
+  RPG_CAMERA.followEntity.followEntityId = ent->id;
 
   // All Good!
   errorOk();

src/dusk/rpg/rpgcamera.c

@@ -11,44 +11,38 @@
 #include "rpg/overworld/map.h"
 #include "assert/assert.h"
 
+#include "display/screen/screen.h"
+
 rpgcamera_t RPG_CAMERA;
 
 void rpgCameraInit(void) {
   memoryZero(&RPG_CAMERA, sizeof(rpgcamera_t));
-  
 }
 
-errorret_t rpgCameraUpdate(void) {
-  glm_lookat(
-    (vec3){ 3, 3, 3 },
-    (vec3){ 0, 0, 0 }, // center
-    (vec3){ 0, 1, 0 }, // up
-    RPG_CAMERA.eye
-  );
-
-  if(!mapIsLoaded()) errorOk();
-  chunkpos_t chunkPos;
-
+worldpos_t rpgCameraGetPosition(void) {
   switch(RPG_CAMERA.mode) {
     case RPG_CAMERA_MODE_FREE:
-      worldPosToChunkPos(&RPG_CAMERA.free, &chunkPos);
-      break;
+      return RPG_CAMERA.free;
 
     case RPG_CAMERA_MODE_FOLLOW_ENTITY: {
       entity_t *entity = &ENTITIES[RPG_CAMERA.followEntity.followEntityId];
       if(entity->type == ENTITY_TYPE_NULL) {
-        errorOk();
+        return (worldpos_t){ 0, 0, 0 };
       }
-
-      // Update map position to match camera. By default map wants to know the
-      // top left but we want to set the center, so we need to sub half map size
-      worldPosToChunkPos(&entity->position, &chunkPos);
-      break;
+      return entity->position;
     }
 
     default:
       assertUnreachable("Invalid RPG camera mode");
   }
+}
+
+errorret_t rpgCameraUpdate(void) {
+  if(!mapIsLoaded()) errorOk();
+  
+  chunkpos_t chunkPos;
+  worldpos_t worldPos = rpgCameraGetPosition();
+  worldPosToChunkPos(&worldPos, &chunkPos);
   
   errorChain(mapPositionSet((chunkpos_t){
     .x = chunkPos.x - (MAP_CHUNK_WIDTH / 2),

src/dusk/rpg/rpgcamera.h

@@ -19,6 +19,7 @@ typedef struct {
 
   union {
     worldpos_t free;
+    
     struct {
       uint8_t followEntityId;
     } followEntity;
@@ -34,6 +35,13 @@ extern rpgcamera_t RPG_CAMERA;
  */
 void rpgCameraInit(void);
 
+/**
+ * Gets the RPG camera's position.
+ * 
+ * @return The RPG camera's position.
+ */
+worldpos_t rpgCameraGetPosition(void);
+
 /**
  * Updates the RPG camera.
  * 

src/dusk/scene/overworld/sceneoverworld.c

@@ -14,6 +14,8 @@
 #include "display/shader/shaderunlit.h"
 #include "display/spritebatch/spritebatch.h"
 
+#include "rpg/overworld/map.h"
+#include "rpg/entity/entity.h"
 #include "rpg/rpgcamera.h"
 
 errorret_t sceneOverworldInit(scenedata_t *sceneData) {
@@ -39,38 +41,121 @@ errorret_t sceneOverworldRender(scenedata_t *sceneData) {
 
   glm_mat4_identity(model);
 
-  glm_perspective(
-    glm_rad(45),
-    (float)SCREEN.width / (float)SCREEN.height,
-    0.1f,
-    100.0f,
-    proj
-  );
 
   errorChain(shaderBind(&SHADER_UNLIT));
   errorChain(shaderSetTexture(&SHADER_UNLIT, SHADER_UNLIT_TEXTURE, &TEXTURE_TEST));
   errorChain(shaderSetColor(&SHADER_UNLIT, SHADER_UNLIT_COLOR, COLOR_WHITE));
   errorChain(shaderSetMatrix(&SHADER_UNLIT, SHADER_UNLIT_MODEL, model));
-  errorChain(shaderSetMatrix(&SHADER_UNLIT, SHADER_UNLIT_VIEW, RPG_CAMERA.eye));
+
+  // Camera projection
+  float_t fov = glm_rad(45.0f);
+  glm_perspective(
+    fov,
+    (float_t)SCREEN.width / (float_t)SCREEN.height,
+    0.1f,
+    100.0f,
+    proj
+  );
   errorChain(shaderSetMatrix(&SHADER_UNLIT, SHADER_UNLIT_PROJECTION, proj));
+  
+  // Camera Eye
+  float_t pixelsPerUnit = 16.0f;
+  float_t worldH = (float)SCREEN.height / pixelsPerUnit;
+  float_t z = (worldH * 0.5f) / tanf(fov * 0.5f);
+  worldpos_t worldPos = rpgCameraGetPosition();
+  float_t offset = 16.0f;
 
+  vec3 worldPosVec = {
+    worldPos.x,
+    worldPos.y,
+    worldPos.z
+  };
+  glm_vec3_add(worldPosVec, (vec3){ 0.5f, 0.5f, 0.5f }, worldPosVec);
+
+  glm_lookat(
+    (vec3){
+      worldPosVec[0],
+      worldPosVec[1] + offset,
+      worldPosVec[2] + z
+    },
+    worldPosVec,
+    (vec3){ 0, -1, 0 }, // up
+    RPG_CAMERA.eye
+  );
+  errorChain(shaderSetMatrix(&SHADER_UNLIT, SHADER_UNLIT_VIEW, RPG_CAMERA.eye));
+  
+  // Chunk Data
   {
-    uint8_t spriteCount = 1;
-    spritebatchsprite_t sprites[spriteCount];
+    shadermaterial_t chunkMaterial = {
+      .unlit = {
+        .color = COLOR_WHITE
+      }
+    };
 
-    glm_vec3_copy((vec3){ -0.5f, -0.5f, 0 }, sprites[0].min);
-    glm_vec3_copy((vec3){ 0.5f, 0.5f, 0 }, sprites[0].max);
-    glm_vec2_copy((vec2){ 0, 0 }, sprites[0].uvMin);
-    glm_vec2_copy((vec2){ 1, 1 }, sprites[0].uvMax);
+    uint32_t i = 0;
+    for(uint8_t x = 0; x < MAP_CHUNK_WIDTH; x++) {
+      for(uint8_t y = 0; y < MAP_CHUNK_HEIGHT; y++) {
+        for(uint8_t z = 0; z < MAP_CHUNK_DEPTH; z++) {
+          chunk_t *chunk = &MAP.chunks[i];
+          if(chunk->spriteCount == 0) {
+            i++;
+            continue;
+          }
 
-    shadermaterial_t material;
-    material.unlit.color = COLOR_WHITE;
-    material.unlit.texture = &TEXTURE_TEST;
+          chunkMaterial.unlit.color = chunk->testColor;
+
+          spriteBatchBuffer(
+            chunk->sprites, chunk->spriteCount, &SHADER_UNLIT, chunkMaterial
+          );
+          i++;
+        }
+      }
+    }
 
-    spriteBatchBuffer(sprites, spriteCount, &SHADER_UNLIT, material);
     spriteBatchFlush();
   }
 
+  // Entities
+  {
+    uint8_t spriteCount = 0;
+    spritebatchsprite_t sprites[ENTITY_COUNT];
+    for(uint8_t i = 0; i < ENTITY_COUNT; i++) {
+      entity_t *ent = &ENTITIES[i];
+      if(ent->type == ENTITY_TYPE_NULL) continue;
+
+      vec3 position = {
+        ent->position.x,
+        ent->position.y,
+        ((float_t)ent->position.z) + 0.01f
+      };
+
+      glm_vec3_copy(position, sprites[spriteCount].min);
+      glm_vec3_copy(position, sprites[spriteCount].max);
+      glm_vec3_add(
+        sprites[spriteCount].max,
+        (vec3){ 1, 1, 0 },
+        sprites[spriteCount].max
+      );
+
+      glm_vec2_copy((vec2){ 0, 0 }, sprites[spriteCount].uvMin);
+      glm_vec2_copy((vec2){ 1, 1 }, sprites[spriteCount].uvMax);
+
+      spriteCount++;
+    }
+
+    if(spriteCount) {
+      shadermaterial_t material = {
+        .unlit = {
+          .color = COLOR_CYAN,
+          .texture = NULL
+        }
+      };
+      // material.unlit.texture = &TEXTURE_TEST;
+      spriteBatchBuffer(sprites, spriteCount, &SHADER_UNLIT, material);
+      spriteBatchFlush();
+    }
+  }
+
   errorOk();
 }