New structure

[dragonblocks3d.git] / src / map.cpp

diff --git a/src/map.cpp b/src/map.cpp
new file mode 100644 (file)
index 0000000..351cd31
--- /dev/null
+++ b/src/map.cpp
@@ -0,0 +1,75 @@
+#include <stdexcept>
+#include "map.hpp"
+#include "mapgen.hpp"
+
+using namespace std;
+using namespace glm;
+using namespace dragonblocks;
+
+ivec3 Map::getChunkPos(const vec3 &p)
+{
+       return floor(p / (float)DRAGONBLOCKS_CHUNK_SIZE);
+}
+
+ivec3 Map::getBlockPos(const ivec3 &p)
+{
+       return ((p % DRAGONBLOCKS_CHUNK_SIZE) + ivec3(DRAGONBLOCKS_CHUNK_SIZE)) % DRAGONBLOCKS_CHUNK_SIZE;
+}
+
+uint16_t Map::getChunkPosHash(const ivec3 &p)
+{
+       return (uint16_t)p.x + (uint16_t)p.y * DRAGONBLOCKS_MAP_SIZE + (uint16_t)p.z * DRAGONBLOCKS_MAP_SIZE * DRAGONBLOCKS_MAP_SIZE;
+}
+
+const Block *Map::getBlock(const glm::ivec3 &p)
+{
+       
+       Chunk *chunk = getChunk(Map::getChunkPos(p));
+       if (chunk)
+               return chunk->getBlock(Map::getBlockPos(p));
+       return nullptr;
+}
+
+void Map::setBlock(const glm::ivec3 &p, BlockDef *def)
+{
+       Chunk *chunk = getChunk(Map::getChunkPos(p));
+       if (chunk)
+               chunk->setBlock(Map::getBlockPos(p), def);
+}
+
+void Map::createChunk(const glm::ivec3 &p, const Chunk::Data &data)
+{
+       uint64_t poshash = Map::getChunkPosHash(p);
+       
+       if (chunks[poshash])
+               return;
+
+       chunks[poshash] = new Chunk(this, p, data, async_mgr, scene, shader_program);
+}
+
+void Map::createChunk(const glm::ivec3 &p)
+{
+       if (! chunks[Map::getChunkPosHash(p)])
+               createChunk(p, mapgen->generate(p));
+}      
+
+Chunk *Map::getChunk(const glm::ivec3 &p)
+{
+       return chunks[Map::getChunkPosHash(p)];
+}
+
+void Map::clear()
+{
+       for (auto it = chunks.begin(); it != chunks.end(); it++)
+               delete it->second;
+       chunks.clear();
+}
+
+Map::Map(Mapgen *m, AsyncMgr *a, Scene *s, ShaderProgram *sh) : mapgen(m), async_mgr(a), scene(s), shader_program(sh)
+{
+}
+
+Map::~Map()
+{
+       clear();
+}