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-rw-r--r--src/World/Region.cpp13
-rw-r--r--src/World/Region.hpp16
2 files changed, 15 insertions, 14 deletions
diff --git a/src/World/Region.cpp b/src/World/Region.cpp
index fec732c..4551d73 100644
--- a/src/World/Region.cpp
+++ b/src/World/Region.cpp
@@ -54,7 +54,7 @@ Region::ChunkMap Region::processHeader(const uint8_t header[4096]) {
return map;
}
-Region::Region(const char *filename) {
+void Region::visitChunks(const char *filename, ChunkVisitor visitor) {
std::ifstream file;
file.exceptions(std::ios::failbit | std::ios::badbit);
file.open(filename, std::ios::in | std::ios::binary);
@@ -68,6 +68,8 @@ Region::Region(const char *filename) {
chunkMap = processHeader(header);
}
+ bool seen[SIZE][SIZE] = {};
+
size_t i = 1, c = 0;
while (!file.eof()) {
auto it = chunkMap.find(i);
@@ -80,16 +82,19 @@ Region::Region(const char *filename) {
size_t x, z, len;
std::tie(x, z, len) = it->second;
- if (chunks[x][z])
+ if (seen[x][z])
throw std::invalid_argument("duplicate chunk");
+ seen[x][z] = true;
+ c++;
+
uint8_t buffer[len * 4096];
file.read((char *)buffer, len * 4096);
- chunks[x][z].reset(new Chunk(Buffer(buffer, len * 4096)));
+ Chunk chunk(Buffer(buffer, len * 4096));
+ visitor(x, z, &chunk);
i += len;
- c++;
}
if (c != chunkMap.size())
diff --git a/src/World/Region.hpp b/src/World/Region.hpp
index 0843724..d88dbe1 100644
--- a/src/World/Region.hpp
+++ b/src/World/Region.hpp
@@ -28,6 +28,7 @@
#include "Chunk.hpp"
+#include <functional>
#include <memory>
#include <stdexcept>
#include <tuple>
@@ -41,23 +42,18 @@ class Region {
public:
static const size_t SIZE = 32;
+ typedef std::function<void (size_t, size_t, const Chunk *)> ChunkVisitor;
+
+ Region() = delete;
+
private:
typedef std::tuple<size_t, size_t, size_t> ChunkDesc;
typedef std::unordered_map<size_t, ChunkDesc> ChunkMap;
- std::unique_ptr<Chunk> chunks[SIZE][SIZE];
-
static ChunkMap processHeader(const uint8_t header[4096]);
public:
- Region(const char *filename);
-
- const Chunk * operator()(size_t x, size_t z) {
- if (x >= SIZE || z >= SIZE)
- throw std::range_error("Region(): bad coordinates");
-
- return chunks[x][z].get();
- }
+ static void visitChunks(const char *filename, ChunkVisitor visitor);
};
}