A lot of changes in almost all files

res/crosshair.glslv

@@ -2,6 +2,9 @@
 
 layout (location = 0) in vec2 v_position;
 
+uniform float u_ar;
+uniform float u_scale;
+
 void main(){
-	gl_Position = vec4(v_position, 0.0, 1.0);
+	gl_Position = vec4(v_position.x * u_ar * u_scale, v_position.y * u_scale, 0.0, 1.0);
 }

res/main.glslf

@@ -10,8 +10,8 @@ uniform vec3 u_fogColor;
 
 void main(){
 	vec4 tex_color = texture(u_texture0, a_texCoord);
-	if (tex_color.a < 0.5)
-		discard;
+	//if (tex_color.a < 0.5)
+	//	discard;
 	float depth = (a_distance/256.0)*(a_distance/256.0)*256.0;
-	f_color = mix(a_color * tex_color, vec4(u_fogColor,1.0), min(1.0, depth/256.0));
+	f_color = mix(a_color * tex_color, vec4(u_fogColor,1.0), min(1.0, depth/256.0/1.0f));
 }

res/main.glslv

@@ -12,10 +12,12 @@ uniform mat4 u_model;
 uniform mat4 u_proj;
 uniform mat4 u_view;
 uniform vec3 u_skyLightColor;
+uniform vec3 u_cameraPos;
 uniform float u_gamma;
 
 void main(){
-	vec4 viewmodelpos = u_view * u_model * vec4(v_position, 1.0);
+	vec2 pos2d = (u_model * vec4(v_position, 1.0)).xz-u_cameraPos.xz;
+	vec4 viewmodelpos = u_view * u_model * vec4(v_position+vec3(0,pow(length(pos2d)*0.0, 3.0),0), 1.0);
 	a_color = vec4(pow(v_light.rgb, vec3(u_gamma)),1.0f);
 	a_texCoord = v_texCoord;
 	a_color.rgb += u_skyLightColor * v_light.a*0.5;

src/files/WorldFiles.cpp

@@ -14,6 +14,9 @@ union {
 #include <fstream>
 #include <iostream>
 
+#define SECTION_POSITION 1
+#define SECTION_ROTATION 2
+
 unsigned long WorldFiles::totalCompressed = 0;
 
 int bytes2Int(const unsigned char* src, unsigned int offset){
@@ -27,6 +30,23 @@ void int2Bytes(int value, char* dest, unsigned int offset){
 	dest[offset+3] = (char) (value >> 0 & 255);
 }
 
+void float2Bytes(float fvalue, char* dest, unsigned int offset){
+	uint32_t value = *((uint32_t*)&fvalue);
+	dest[offset] = (char) (value >> 24 & 255);
+	dest[offset+1] = (char) (value >> 16 & 255);
+	dest[offset+2] = (char) (value >> 8 & 255);
+	dest[offset+3] = (char) (value >> 0 & 255);
+}
+
+float bytes2Float(char* srcs, unsigned int offset){
+	unsigned char* src = (unsigned char*) srcs;
+	uint32_t value = ((src[offset] << 24) |
+					  (src[offset+1] << 16) |
+					  (src[offset+2] << 8) |
+					  (src[offset+3]));
+	return *(float*)(&value);
+}
+
 WorldFiles::WorldFiles(const char* directory, size_t mainBufferCapacity) : directory(directory){
 	mainBufferIn = new char[CHUNK_VOL*2];
 	mainBufferOut = new char[mainBufferCapacity];
@@ -81,6 +101,10 @@ std::string WorldFiles::getRegionFile(int x, int y) {
 	return directory + std::to_string(x) + "_" + std::to_string(y) + ".bin";
 }
 
+std::string WorldFiles::getPlayerFile() {
+	return directory + "/player.bin";
+}
+
 bool WorldFiles::getChunk(int x, int y, char* out){
 	assert(out != nullptr);
 
@@ -129,7 +153,7 @@ bool WorldFiles::readChunk(int x, int y, char* out){
 	input.read((char*)(&offset), 4);
 	// Ordering bytes from big-endian to machine order (any, just reading)
 	offset = bytes2Int((const unsigned char*)(&offset), 0);
-	assert (offset < 1000000);
+	//assert (offset < 1000000);
 	if (offset == 0){
 		input.close();
 		return false;
@@ -161,6 +185,48 @@ void WorldFiles::write(){
 	}
 }
 
+void WorldFiles::writePlayer(glm::vec3 position, float camX, float camY){
+	char dst[1+3*4 + 1+2*4];
+
+	size_t offset = 0;
+	dst[offset++] = SECTION_POSITION;
+	float2Bytes(position.x, dst, offset); offset += 4;
+	float2Bytes(position.y, dst, offset); offset += 4;
+	float2Bytes(position.z, dst, offset); offset += 4;
+
+	dst[offset++] = SECTION_ROTATION;
+	float2Bytes(camX, dst, offset); offset += 4;
+	float2Bytes(camY, dst, offset); offset += 4;
+
+	write_binary_file(getPlayerFile(), (const char*)dst, sizeof(dst));
+}
+
+bool WorldFiles::readPlayer(glm::vec3& position, float& camX, float& camY) {
+	size_t length = 0;
+	char* data = read_binary_file(getPlayerFile(), length);
+	if (data == nullptr){
+		std::cerr << "could not to read player.bin" << std::endl;
+		return false;
+	}
+	size_t offset = 0;
+	while (offset < length){
+		char section = data[offset++];
+		switch (section){
+		case SECTION_POSITION:
+			position.x = bytes2Float(data, offset); offset += 4;
+			position.y = bytes2Float(data, offset); offset += 4;
+			position.z = bytes2Float(data, offset); offset += 4;
+			break;
+		case SECTION_ROTATION:
+			camX = bytes2Float(data, offset); offset += 4;
+			camY = bytes2Float(data, offset); offset += 4;
+			break;
+		}
+	}
+	std::cout << position.x << " " << position.y << " " << position.z << std::endl;
+	return true;
+}
+
 unsigned int WorldFiles::writeRegion(char* out, int x, int y, char** region){
 	unsigned int offset = REGION_VOL * 4;
 	for (unsigned int i = 0; i < offset; i++)

src/files/WorldFiles.h

@@ -3,7 +3,8 @@
 
 #include <map>
 #include <unordered_map>
-#include <string>
+#include <glm/glm.hpp>
+
 #define REGION_SIZE_BIT 5
 #define REGION_SIZE (1 << (REGION_SIZE_BIT))
 #define REGION_VOL ((REGION_SIZE) * (REGION_SIZE))
@@ -26,13 +27,16 @@ public:
 
 	void put(const char* chunkData, int x, int y);
 
+	bool readPlayer(glm::vec3& position, float& camX, float& camY);
 	bool readChunk(int x, int y, char* out);
 	bool getChunk(int x, int y, char* out);
 	void readRegion(char* fileContent);
 	unsigned int writeRegion(char* out, int x, int y, char** region);
+	void writePlayer(glm::vec3 position, float camX, float camY);
 	void write();
 
 	std::string getRegionFile(int x, int y);
+	std::string getPlayerFile();
 };
 
 extern void longToCoords(int& x, int& y, long key);

src/files/files.cpp

@@ -40,14 +40,18 @@ bool read_binary_file(std::string filename, char* data, size_t size) {
 	return true;
 }
 
-bool read_binary_file(std::string filename, char* data, size_t offset, size_t size) {
+char* read_binary_file(std::string filename, size_t& length) {
 	std::ifstream input(filename, std::ios::binary);
 	if (!input.is_open())
-		return false;
-	input.seekg(offset);
-	input.read(data, size);
+		return nullptr;
+	input.seekg(0, std::ios_base::end);
+	length = input.tellg();
+	input.seekg(0, std::ios_base::beg);
+
+	char* data = new char[length];
+	input.read(data, length);
 	input.close();
-	return true;
+	return data;
 }
 
 // returns decompressed length

src/files/files.h

@@ -7,6 +7,7 @@ extern bool write_binary_file(std::string filename, const char* data, size_t siz
 extern unsigned int append_binary_file(std::string filename, const char* data, size_t size);
 extern bool read_binary_file(std::string filename, char* data, size_t size);
 extern bool read_binary_file(std::string filename, char* data, size_t offset, size_t size);
+extern char* read_binary_file(std::string filename, size_t& length);
 
 extern unsigned int calcRLE(const char* src, unsigned int length);
 extern unsigned int compressRLE(const char* src, unsigned int length, char* dst);

src/graphics/LineBatch.cpp

@@ -67,6 +67,7 @@ void LineBatch::box(float x, float y, float z, float w, float h, float d,
 	line(x+w, y+h, z-d, x+w, y+h, z+d, r,g,b,a);
 }
 
+#include <iostream>
 void LineBatch::render(){
 	if (index == 0)
 		return;

src/graphics/VoxelRenderer.cpp

@@ -44,16 +44,11 @@ VoxelRenderer::~VoxelRenderer(){
 	delete[] buffer;
 }
 
-Mesh* VoxelRenderer::render(Chunk* chunk, const Chunk** chunks){
-	size_t index = 0;
-	for (int y = 0; y < CHUNK_H; y++){
-		for (int z = 0; z < CHUNK_D; z++){
-			for (int x = 0; x < CHUNK_W; x++){
-				voxel vox = chunk->voxels[(y * CHUNK_D + z) * CHUNK_W + x];
+inline void _renderBlock(float* buffer, int x, int y, int z, const Chunk** chunks, voxel vox, size_t& index){
 	unsigned int id = vox.id;
 
 	if (!id){
-					continue;
+		return;
 	}
 
 	float l;
@@ -293,6 +288,28 @@ Mesh* VoxelRenderer::render(Chunk* chunk, const Chunk** chunks){
 		VERTEX(index, x+0.5f, y-0.5f, z-0.5f, u1,v1, lr3,lg3,lb3,ls3);
 	}
 }
+
+Mesh* VoxelRenderer::render(Chunk* chunk, const Chunk** chunks){
+	size_t index = 0;
+	for (int y = 0; y < CHUNK_H; y++){
+		for (int z = 0; z < CHUNK_D; z++){
+			for (int x = 0; x < CHUNK_W; x++){
+				voxel vox = chunk->voxels[(y * CHUNK_D + z) * CHUNK_W + x];
+				if (vox.id == 9)
+					continue;
+				_renderBlock(buffer, x, y, z, chunks, vox, index);
+			}
+		}
+	}
+
+	for (int y = 0; y < CHUNK_H; y++){
+		for (int z = 0; z < CHUNK_D; z++){
+			for (int x = 0; x < CHUNK_W; x++){
+				voxel vox = chunk->voxels[(y * CHUNK_D + z) * CHUNK_W + x];
+				if (vox.id != 9)
+					continue;
+				_renderBlock(buffer, x, y, z, chunks, vox, index);
+			}
 		}
 	}
 	return new Mesh(buffer, index / VERTEX_SIZE, chunk_attrs);

src/lighting/LightSolver.cpp

@@ -1,3 +1,4 @@
+#include <iostream>
 #include <assert.h>
 #include "LightSolver.h"
 #include "Lightmap.h"
@@ -60,7 +61,7 @@ void LightSolver::solve(){
 	};
 
 	while (!remqueue.empty()){
-		lightentry entry = remqueue.front();
+		const lightentry entry = remqueue.front();
 		remqueue.pop();
 
 		for (size_t i = 0; i < 6; i++) {

src/lighting/Lighting.cpp

@@ -6,22 +6,15 @@
 #include "../voxels/voxel.h"
 #include "../voxels/Block.h"
 
-Chunks* Lighting::chunks = nullptr;
-LightSolver* Lighting::solverR = nullptr;
-LightSolver* Lighting::solverG = nullptr;
-LightSolver* Lighting::solverB = nullptr;
-LightSolver* Lighting::solverS = nullptr;
-
-int Lighting::initialize(Chunks* chunks){
-	Lighting::chunks = chunks;
+Lighting::Lighting(Chunks* chunks){
+	this->chunks = chunks;
 	solverR = new LightSolver(chunks, 0);
 	solverG = new LightSolver(chunks, 1);
 	solverB = new LightSolver(chunks, 2);
 	solverS = new LightSolver(chunks, 3);
-	return 0;
 }
 
-void Lighting::finalize(){
+Lighting::~Lighting(){
 	delete solverR, solverG, solverB, solverS;
 }
 
@@ -37,11 +30,11 @@ void Lighting::clear(){
 	}
 }
 
-void Lighting::onChunkLoaded(int cx, int cy, int cz){
+void Lighting::onChunkLoaded(int cx, int cy, int cz, bool sky){
 	Chunk* chunk = chunks->getChunk(cx, cy, cz);
 	Chunk* chunkUpper = chunks->getChunk(cx, cy+1, cz);
 	Chunk* chunkLower = chunks->getChunk(cx, cy-1, cz);
-	if (chunkLower){
+	if (chunkLower && sky){
 		for (int z = 0; z < CHUNK_D; z++){
 			for (int x = 0; x < CHUNK_W; x++){
 				int gx = x + cx * CHUNK_W;
@@ -65,7 +58,7 @@ void Lighting::onChunkLoaded(int cx, int cy, int cz){
 							break;
 						voxel* vox = &(current->voxels[(y * CHUNK_D + z) * CHUNK_W + x]);//chunks->get(gx,gy+y,gz);
 						Block* block = Block::blocks[vox->id];
-						if (!block->lightPassing)
+						if (!block->skyLightPassing)
 							break;
 						//current->lightmap->setS(x,y,z, 0);
 						current->modified = true;
@@ -76,7 +69,7 @@ void Lighting::onChunkLoaded(int cx, int cy, int cz){
 			}
 		}
 	}
-	if (chunkUpper){
+	if (chunkUpper && sky){
 		for (int z = 0; z < CHUNK_D; z++){
 			for (int x = 0; x < CHUNK_W; x++){
 				int gx = x + cx * CHUNK_W;
@@ -99,7 +92,7 @@ void Lighting::onChunkLoaded(int cx, int cy, int cz){
 							break;
 						voxel* vox = &(current->voxels[(y * CHUNK_D + z) * CHUNK_W + x]);//chunks->get(gx,gy+y,gz);
 						Block* block = Block::blocks[vox->id];
-						if (!block->lightPassing)
+						if (!block->skyLightPassing)
 							break;
 						current->lightmap->setS(x,y,z, 15);
 						current->modified = true;
@@ -110,7 +103,7 @@ void Lighting::onChunkLoaded(int cx, int cy, int cz){
 				}
 			}
 		}
-	} else {
+	} else if (sky){
 		for (int z = 0; z < CHUNK_D; z++){
 			for (int x = 0; x < CHUNK_W; x++){
 				int gx = x + cx * CHUNK_W;
@@ -129,11 +122,11 @@ void Lighting::onChunkLoaded(int cx, int cy, int cz){
 						break;
 					voxel* vox = &(current->voxels[(y * CHUNK_D + z) * CHUNK_W + x]);//chunks->get(gx,gy+y,gz);
 					Block* block = Block::blocks[vox->id];
-					if (!block->lightPassing)
+					if (!block->skyLightPassing)
 						break;
 					current->lightmap->setS(x,y,z, 15);
 					current->modified = true;
-					//solverS->add(gx,y+ncy*CHUNK_H,gz);
+					solverS->add(gx,y+ncy*CHUNK_H,gz);
 				}
 			}
 		}
@@ -163,13 +156,16 @@ void Lighting::onChunkLoaded(int cx, int cy, int cz){
 				int gx = x + cx * CHUNK_W;
 				int gy = y + cy * CHUNK_H;
 				int gz = z + cz * CHUNK_D;
+				if (chunks->getLight(x,y,z)){
 					solverR->add(gx,gy,gz);
 					solverG->add(gx,gy,gz);
 					solverB->add(gx,gy,gz);
+					if (sky)
 						solverS->add(gx,gy,gz);
 				}
 			}
 		}
+	}
 
 	solverR->solve();
 	solverG->solve();
@@ -199,7 +195,7 @@ void Lighting::onBlockSet(int x, int y, int z, int id){
 		if (chunks->getLight(x,y+1,z, 3) == 0xF){
 			for (int i = y; i >= 0; i--){
 				voxel* vox = chunks->get(x,i,z);
-				if (vox == nullptr || vox->id != 0)
+				if (vox == nullptr || vox->id != 0 && Block::blocks[id]->skyLightPassing)
 					break;
 				solverS->add(x,i,z, 0xF);
 			}
@@ -220,7 +216,7 @@ void Lighting::onBlockSet(int x, int y, int z, int id){
 		solverR->remove(x,y,z);
 		solverG->remove(x,y,z);
 		solverB->remove(x,y,z);
-		if (!block->lightPassing){
+		if (!block->skyLightPassing){
 			solverS->remove(x,y,z);
 			for (int i = y-1; i >= 0; i--){
 				solverS->remove(x,i,z);

src/lighting/Lighting.h

@@ -5,18 +5,18 @@ class Chunks;
 class LightSolver;
 
 class Lighting {
-	static Chunks* chunks;
-	static LightSolver* solverR;
-	static LightSolver* solverG;
-	static LightSolver* solverB;
-	static LightSolver* solverS;
+	Chunks* chunks = nullptr;
+	LightSolver* solverR = nullptr;
+	LightSolver* solverG = nullptr;
+	LightSolver* solverB = nullptr;
+	LightSolver* solverS = nullptr;
 public:
-	static int initialize(Chunks* chunks);
-	static void finalize();
+	Lighting(Chunks* chunks);
+	~Lighting();
 
-	static void clear();
-	static void onChunkLoaded(int cx, int cy, int cz);
-	static void onBlockSet(int x, int y, int z, int id);
+	void clear();
+	void onChunkLoaded(int cx, int cy, int cz, bool sky);
+	void onBlockSet(int x, int y, int z, int id);
 };
 
 #endif /* LIGHTING_LIGHTING_H_ */

src/lighting/Lightmap.cpp

@@ -10,3 +10,9 @@ Lightmap::Lightmap(){
 Lightmap::~Lightmap(){
 	delete[] map;
 }
+
+void Lightmap::set(const Lightmap* lightmap) {
+	for (unsigned int i = 0; i < CHUNK_VOL; i++){
+		map[i] = lightmap->map[i];
+	}
+}

src/lighting/Lightmap.h

@@ -9,6 +9,12 @@ public:
 	Lightmap();
 	~Lightmap();
 
+	void set(const Lightmap* lightmap);
+
+	inline unsigned short get(int x, int y, int z){
+		return (map[y*CHUNK_D*CHUNK_W+z*CHUNK_W+x]);
+	}
+
 	inline unsigned char get(int x, int y, int z, int channel){
 		return (map[y*CHUNK_D*CHUNK_W+z*CHUNK_W+x] >> (channel << 2)) & 0xF;
 	}

src/loaders/png_loading.cpp

@@ -101,7 +101,7 @@ int _png_load(const char* file, int* width, int* height){
         alpha, GL_UNSIGNED_BYTE, (GLvoid *) image_data);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_LINEAR);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 4);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 3);
     glGenerateMipmap(GL_TEXTURE_2D);
     glBindTexture(GL_TEXTURE_2D, 0);
 

src/voxel_engine.cpp

@@ -4,6 +4,8 @@
 #include <GL/glew.h>
 #include <GLFW/glfw3.h>
 
+#include <algorithm>
+#include <vector>
 #include <ctime>
 
 // GLM
@@ -27,6 +29,7 @@ using namespace glm;
 #include "voxels/Chunks.h"
 #include "voxels/Block.h"
 #include "voxels/WorldGenerator.h"
+#include "voxels/ChunksController.h"
 #include "files/files.h"
 #include "files/WorldFiles.h"
 #include "lighting/LightSolver.h"
@@ -67,6 +70,7 @@ void setup_definitions() {
 	Block* block = new Block(0,0);
 	block->drawGroup = 1;
 	block->lightPassing = true;
+	block->skyLightPassing = true;
 	block->obstacle = false;
 	Block::blocks[block->id] = block;
 
@@ -96,6 +100,28 @@ void setup_definitions() {
 	// PLANKS
 	block = new Block(5,6);
 	Block::blocks[block->id] = block;
+
+	// WOOD
+	block = new Block(6,7);
+	block->textureFaces[2] = 8;
+	block->textureFaces[3] = 8;
+	Block::blocks[block->id] = block;
+
+	// LEAVES
+	block = new Block(7,9);
+	Block::blocks[block->id] = block;
+
+	// ACTUAL STONE
+	block = new Block(8,10);
+	Block::blocks[block->id] = block;
+
+	// WATER
+	block = new Block(9,11);
+	block->drawGroup = 4;
+	block->lightPassing = true;
+	block->skyLightPassing = false;
+	block->obstacle = false;
+	Block::blocks[block->id] = block;
 }
 
 // Shaders, textures, renderers
@@ -131,35 +157,19 @@ int initialize_assets() {
 	return 0;
 }
 
-void draw_world(Camera* camera){
-	glClearColor(0.7f,0.85f,1.0f,1);
-	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-	// Draw VAO
-	shader->use();
-	shader->uniformMatrix("u_proj", camera->getProjection());
-	shader->uniformMatrix("u_view", camera->getView());
-	shader->uniform1f("u_gamma", 1.6f);
-	shader->uniform3f("u_skyLightColor", 1.8f,1.8f,1.8f);
-	shader->uniform3f("u_fogColor", 0.7f,0.85f,1.0f);
-	texture->bind();
-	mat4 model(1.0f);
+void draw_chunk(size_t index, Camera* camera){
+	Chunk* chunk = chunks->chunks[index];
+	Mesh* mesh = chunks->meshes[index];
+	if (mesh == nullptr)
+		return;
 
+	// Simple frustum culling (culling chunks behind the camera in 2D - XZ)
+	if (occlusion){
 		const float cameraX = camera->position.x;
 		const float cameraZ = camera->position.z;
 		const float camDirX = camera->dir.x;
 		const float camDirZ = camera->dir.z;
 
-	for (size_t i = 0; i < chunks->volume; i++){
-		Chunk* chunk = chunks->chunks[i];
-		if (chunk == nullptr)
-			continue;
-		Mesh* mesh = chunks->meshes[i];
-		if (mesh == nullptr)
-			continue;
-
-		// Simple frustum culling (culling chunks behind the camera in 2D - XZ)
-		if (occlusion){
 		bool unoccluded = false;
 		do {
 			if ((chunk->x*CHUNK_W-cameraX)*camDirX + (chunk->z*CHUNK_D-cameraZ)*camDirZ >= 0.0){
@@ -176,15 +186,80 @@ void draw_world(Camera* camera){
 			}
 		} while (false);
 		if (!unoccluded)
-				continue;
+			return;
 	}
 
-		model = glm::translate(mat4(1.0f), vec3(chunk->x*CHUNK_W+0.5f, chunk->y*CHUNK_H+0.5f, chunk->z*CHUNK_D+0.5f));
+	mat4 model = glm::translate(mat4(1.0f), vec3(chunk->x*CHUNK_W+0.5f, chunk->y*CHUNK_H+0.5f, chunk->z*CHUNK_D+0.5f));
 	shader->uniformMatrix("u_model", model);
 	mesh->draw(GL_TRIANGLES);
 }
 
+float find_most_distant_sqr(float px, float pz, float distance_limit2){
+	float max_dist2 = -1.0f;
+	for (size_t i = 0; i < chunks->volume; i++){
+		Chunk* chunk = chunks->chunks[i];
+		if (chunk == nullptr)
+			continue;
+		float dist2 = (chunk->x - px) * (chunk->z - pz);
+		if (dist2 > max_dist2 && dist2 < distance_limit2){
+			max_dist2 = dist2;
+		}
+	}
+	return max_dist2;
+}
+
+float _camera_cx;
+float _camera_cz;
+
+bool chunks_comparator(size_t i, size_t j) {
+	Chunk* a = chunks->chunks[i];
+	Chunk* b = chunks->chunks[j];
+	return ((a->x + 0.5f - _camera_cx)*(a->x + 0.5f - _camera_cx) + (a->z + 0.5f - _camera_cz)*(a->z + 0.5f - _camera_cz)
+			>
+			(b->x + 0.5f - _camera_cx)*(b->x + 0.5f - _camera_cx) + (b->z + 0.5f - _camera_cz)*(b->z + 0.5f - _camera_cz));
+}
+
+void draw_world(Camera* camera){
+	glClearColor(0.7f,0.71f,0.73f,1);
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+	// Draw VAO
+	shader->use();
+	shader->uniformMatrix("u_proj", camera->getProjection());
+	shader->uniformMatrix("u_view", camera->getView());
+	shader->uniform1f("u_gamma", 1.6f);
+	shader->uniform3f("u_skyLightColor", 1.8f,1.8f,1.8f);
+	shader->uniform3f("u_fogColor", 0.7f,0.71f,0.73f);
+	shader->uniform3f("u_cameraPos", camera->position.x,camera->position.y,camera->position.z);
+	texture->bind();
+
+	std::vector<size_t> indices;
+
+	for (size_t i = 0; i < chunks->volume; i++){
+		Chunk* chunk = chunks->chunks[i];
+		if (chunk == nullptr)
+			continue;
+		if (chunks->meshes[i] != nullptr)
+			indices.push_back(i);
+	}
+
+	std::sort(indices.begin(), indices.end(), chunks_comparator);
+
+
+	float px = camera->position.x / (float)CHUNK_W;
+	float pz = camera->position.z / (float)CHUNK_D;
+
+	_camera_cx = px;
+	_camera_cz = pz;
+
+
+	for (size_t i = 0; i < indices.size(); i++){
+		draw_chunk(indices[i], camera);
+	}
+
 	crosshairShader->use();
+	crosshairShader->uniform1f("u_ar", (float)Window::height / (float)Window::width);
+	crosshairShader->uniform1f("u_scale", 1.0f / ((float)Window::height / 1000.0f));
 	crosshair->draw(GL_LINES);
 
 	linesShader->use();
@@ -233,30 +308,39 @@ int main() {
 		return result;
 	}
 
+	Camera* camera = new Camera(vec3(-320,255,32), radians(90.0f));
+
 	wfile = new WorldFiles("world/", REGION_VOL * (CHUNK_VOL * 2 + 8));
-	chunks = new Chunks(32,1,32, 0,0,0);
-	VoxelRenderer renderer(1024*1024);
-	lineBatch = new LineBatch(4096);
-	PhysicsSolver physics(vec3(0,-16.0f,0));
-
-	Lighting::initialize(chunks);
-
-	crosshair = new Mesh(vertices, 4, attrs);
-	Camera* camera = new Camera(vec3(32,32,32), radians(90.0f));
-	Hitbox* hitbox = new Hitbox(vec3(32,120,32), vec3(0.2f,0.9f,0.2f));
-
-	float lastTime = glfwGetTime();
-	float delta = 0.0f;
+	chunks = new Chunks(34,1,34, 0,0,0);
 
 	float camX = 0.0f;
 	float camY = 0.0f;
 
-	float playerSpeed = 4.0f;
+	wfile->readPlayer(camera->position, camX, camY);
+	camera->rotation = mat4(1.0f);
+	camera->rotate(camY, camX, 0);
+
+	Hitbox* hitbox = new Hitbox(vec3(camera->position.x,camera->position.y+1,camera->position.z), vec3(0.2f,0.9f,0.2f));
+
+	VoxelRenderer renderer(1024*1024);
+	lineBatch = new LineBatch(4096);
+	PhysicsSolver physics(vec3(0,-16.0f,0));
+
+	Lighting lighting(chunks);
+
+	crosshair = new Mesh(vertices, 4, attrs);
+
+	ChunksController chunksController(chunks, &lighting);
+
+	float lastTime = glfwGetTime();
+	float delta = 0.0f;
+
+	float playerSpeed = 5.0f;
 
 	int choosenBlock = 1;
 	long frame = 0;
 
-	glfwSwapInterval(0);
+	glfwSwapInterval(1);
 
 	while (!Window::isShouldClose()){
 		frame++;
@@ -264,8 +348,8 @@ int main() {
 		delta = currentTime - lastTime;
 		lastTime = currentTime;
 
-		//if (frame % 240 == 0)
-		//	std::cout << delta << std::endl;
+		if (frame % 240 == 0)
+			std::cout << 1.0/delta << std::endl;
 
 		if (Events::jpressed(GLFW_KEY_O)){
 			occlusion = !occlusion;
@@ -278,7 +362,7 @@ int main() {
 			Events::toogleCursor();
 		}
 
-		for (int i = 1; i < 6; i++){
+		for (int i = 1; i < 10; i++){
 			if (Events::jpressed(GLFW_KEY_0+i)){
 				choosenBlock = i;
 			}
@@ -334,8 +418,8 @@ int main() {
 		hitbox->velocity.z = dir.z * speed;
 
 		chunks->setCenter(wfile, camera->position.x,0,camera->position.z);
-		chunks->_buildMeshes(&renderer);
-		chunks->loadVisible(wfile);
+		chunksController._buildMeshes(&renderer, frame);
+		chunksController.loadVisible(wfile);
 
 		if (Events::_cursor_locked){
 			camY += -Events::deltaY / Window::height * 2;
@@ -365,7 +449,7 @@ int main() {
 					int y = (int)iend.y;
 					int z = (int)iend.z;
 					chunks->set(x,y,z, 0);
-					Lighting::onBlockSet(x,y,z,0);
+					lighting.onBlockSet(x,y,z,0);
 				}
 				if (Events::jclicked(GLFW_MOUSE_BUTTON_2)){
 					int x = (int)(iend.x)+(int)(norm.x);
@@ -373,7 +457,7 @@ int main() {
 					int z = (int)(iend.z)+(int)(norm.z);
 					if (!physics.isBlockInside(x,y,z, hitbox)){
 						chunks->set(x, y, z, choosenBlock);
-						Lighting::onBlockSet(x,y,z, choosenBlock);
+						lighting.onBlockSet(x,y,z, choosenBlock);
 					}
 				}
 			}
@@ -384,10 +468,10 @@ int main() {
 		Events::pullEvents();
 	}
 
+	wfile->writePlayer(hitbox->position, camX, camY);
 	write_world();
 	close_world();
 
-	Lighting::finalize();
 	finalize_assets();
 	Window::terminate();
 	return 0;

src/voxels/Block.h

@@ -11,6 +11,7 @@ public:
 	unsigned char emission[3];
 	unsigned char drawGroup = 0;
 	bool lightPassing = false;
+	bool skyLightPassing = false;
 	bool obstacle = true;
 
 	Block(unsigned int id, int texture);

src/voxels/Chunk.cpp

@@ -27,3 +27,11 @@ bool Chunk::isEmpty(){
 	}
 	return true;
 }
+
+Chunk* Chunk::clone() const {
+	Chunk* other = new Chunk(x,y,z);
+	for (int i = 0; i < CHUNK_VOL; i++)
+		other->voxels[i] = voxels[i];
+	other->lightmap->set(lightmap);
+	return other;
+}

src/voxels/Chunk.h

@@ -15,10 +15,15 @@ public:
 	voxel* voxels;
 	Lightmap* lightmap;
 	bool modified = true;
+	bool ready = false;
+	bool accepted = false;
+	bool generated = false;
 	Chunk(int x, int y, int z);
 	~Chunk();
 
 	bool isEmpty();
+
+	Chunk* clone() const;
 };
 
 #endif /* VOXELS_CHUNK_H_ */

src/voxels/Chunks.cpp

@@ -6,14 +6,8 @@
 #include "../lighting/Lightmap.h"
 #include "../files/WorldFiles.h"
 
-#include "../lighting/Lighting.h"
-#include "../graphics/VoxelRenderer.h"
 #include "../graphics/Mesh.h"
 
-#include <glm/glm.hpp>
-
-using namespace glm;
-
 #include <math.h>
 #include <limits.h>
 
@@ -38,77 +32,6 @@ Chunks::~Chunks(){
 	delete[] chunks;
 }
 
-bool Chunks::_buildMeshes(VoxelRenderer* renderer) {
-	int nearX = 0;
-	int nearY = 0;
-	int nearZ = 0;
-	int minDistance = 1000000000;
-	for (unsigned int y = 0; y < h; y++){
-		for (unsigned int z = 1; z < d-1; z++){
-			for (unsigned int x = 1; x < w-1; x++){
-				int index = (y * d + z) * w + x;
-				Chunk* chunk = chunks[index];
-				if (chunk == nullptr)
-					continue;
-				Mesh* mesh = meshes[index];
-				if (mesh != nullptr && !chunk->modified)
-					continue;
-				int lx = x - w / 2;
-				int ly = y - h / 2;
-				int lz = z - d / 2;
-				int distance = (lx * lx + ly * ly + lz * lz);
-				if (distance < minDistance){
-					minDistance = distance;
-					nearX = x;
-					nearY = y;
-					nearZ = z;
-				}
-			}
-		}
-	}
-
-	int index = (nearY * d + nearZ) * w + nearX;
-
-	Chunk* closes[27];
-
-	Chunk* chunk = chunks[index];
-	if (chunk == nullptr)
-		return false;
-	Mesh* mesh = meshes[index];
-	if (mesh == nullptr || chunk->modified){
-		if (mesh != nullptr)
-			delete mesh;
-		if (chunk->isEmpty()){
-			meshes[index] = nullptr;
-			return false;
-		}
-		chunk->modified = false;
-		for (int i = 0; i < 27; i++)
-			closes[i] = nullptr;
-		for (size_t j = 0; j < volume; j++){
-			Chunk* other = chunks[j];
-			if (other == nullptr)
-				continue;
-
-			int ox = other->x - chunk->x;
-			int oy = other->y - chunk->y;
-			int oz = other->z - chunk->z;
-
-			if (abs(ox) > 1 || abs(oy) > 1 || abs(oz) > 1)
-				continue;
-
-			ox += 1;
-			oy += 1;
-			oz += 1;
-			closes[(oy * 3 + oz) * 3 + ox] = other;
-		}
-		mesh = renderer->render(chunk, (const Chunk**)closes);
-		meshes[index] = mesh;
-		return true;
-	}
-	return false;
-}
-
 voxel* Chunks::get(int x, int y, int z){
 	x -= ox * CHUNK_W;
 	y -= oy * CHUNK_H;
@@ -158,6 +81,27 @@ unsigned char Chunks::getLight(int x, int y, int z, int channel){
 	return chunk->lightmap->get(lx,ly,lz, channel);
 }
 
+unsigned short Chunks::getLight(int x, int y, int z){
+	x -= ox * CHUNK_W;
+	y -= oy * CHUNK_H;
+	z -= oz * CHUNK_D;
+	int cx = x / CHUNK_W;
+	int cy = y / CHUNK_H;
+	int cz = z / CHUNK_D;
+	if (x < 0) cx--;
+	if (y < 0) cy--;
+	if (z < 0) cz--;
+	if (cx < 0 || cy < 0 || cz < 0 || cx >= w || cy >= h || cz >= d)
+		return 0;
+	Chunk* chunk = chunks[(cy * d + cz) * w + cx];
+	if (chunk == nullptr)
+		return 0;
+	int lx = x - cx * CHUNK_W;
+	int ly = y - cy * CHUNK_H;
+	int lz = z - cz * CHUNK_D;
+	return chunk->lightmap->get(lx,ly,lz);
+}
+
 Chunk* Chunks::getChunkByVoxel(int x, int y, int z){
 	x -= ox * CHUNK_W;
 	y -= oy * CHUNK_H;
@@ -317,46 +261,6 @@ void Chunks::setCenter(WorldFiles* worldFiles, int x, int y, int z) {
 		translate(worldFiles, cx,cy,cz);
 }
 
-bool Chunks::loadVisible(WorldFiles* worldFiles){
-	int nearX = 0;
-	int nearY = 0;
-	int nearZ = 0;
-	int minDistance = (w/2)*(w/2);
-	for (unsigned int y = 0; y < h; y++){
-		for (unsigned int z = 1; z < d-1; z++){
-			for (unsigned int x = 1; x < w-1; x++){
-				int index = (y * d + z) * w + x;
-				Chunk* chunk = chunks[index];
-				if (chunk != nullptr)
-					continue;
-				int lx = x - w / 2;
-				int ly = y - h / 2;
-				int lz = z - d / 2;
-				int distance = (lx * lx + ly * ly + lz * lz);
-				if (distance < minDistance){
-					minDistance = distance;
-					nearX = x;
-					nearY = y;
-					nearZ = z;
-				}
-			}
-		}
-	}
-
-	int index = (nearY * d + nearZ) * w + nearX;
-	Chunk* chunk = chunks[index];
-	if (chunk != nullptr)
-		return false;
-	chunk = new Chunk(nearX+ox,nearY+oy,nearZ+oz);
-	if (!worldFiles->getChunk(chunk->x, chunk->z, (char*)chunk->voxels)){
-		WorldGenerator::generate(chunk->voxels, chunk->x, chunk->y, chunk->z);
-	}
-
-	chunks[index] = chunk;
-	Lighting::onChunkLoaded(ox+nearX, oy+nearY, oz+nearZ);
-	return true;
-}
-
 void Chunks::translate(WorldFiles* worldFiles, int dx, int dy, int dz){
 	for (unsigned int i = 0; i < volume; i++){
 		chunksSecond[i] = nullptr;
@@ -395,3 +299,33 @@ void Chunks::translate(WorldFiles* worldFiles, int dx, int dy, int dz){
 	oy += dy;
 	oz += dz;
 }
+
+void Chunks::_setOffset(int x, int y, int z){
+	ox = x;
+	oy = y;
+	oz = z;
+}
+
+bool Chunks::putChunk(Chunk* chunk) {
+	int x = chunk->x;
+	int y = chunk->y;
+	int z = chunk->z;
+	x -= ox;
+	y -= oy;
+	z -= oz;
+	if (x < 0 || y < 0 || z < 0 || x >= w || y >= h || z >= d)
+		return false;
+	chunks[(y * d + z) * w + x] = chunk;
+	return true;
+}
+
+void Chunks::clear(bool freeMemory){
+	for (size_t i = 0; i < volume; i++){
+		if (freeMemory){
+			delete chunks[i];
+			delete meshes[i];
+		}
+		chunks[i] = nullptr;
+		meshes[i] = nullptr;
+	}
+}

src/voxels/Chunks.h

@@ -26,20 +26,25 @@ public:
 	Chunks(int w, int h, int d, int ox, int oy, int oz);
 	~Chunks();
 
+	bool putChunk(Chunk* chunk);
+
 	Chunk* getChunk(int x, int y, int z);
 	Chunk* getChunkByVoxel(int x, int y, int z);
 	voxel* get(int x, int y, int z);
+	unsigned short getLight(int x, int y, int z);
 	unsigned char getLight(int x, int y, int z, int channel);
 	void set(int x, int y, int z, int id);
 	voxel* rayCast(vec3 start, vec3 dir, float maxLength, vec3& end, vec3& norm, vec3& iend);
 
 	bool isObstacle(int x, int y, int z);
 
+	// does not move chunks inside
+	void _setOffset(int x, int y, int z);
+
 	void setCenter(WorldFiles* worldFiles, int x, int y, int z);
 	void translate(WorldFiles* worldFiles, int x, int y, int z);
 
-	bool loadVisible(WorldFiles* worldFiles);
-	bool _buildMeshes(VoxelRenderer* renderer);
+	void clear(bool freeMemory);
 };
 
 #endif /* VOXELS_CHUNKS_H_ */

src/voxels/ChunksController.cpp

@@ -0,0 +1,209 @@
+#include "ChunksController.h"
+#include "Chunk.h"
+#include "Chunks.h"
+#include "WorldGenerator.h"
+#include "../graphics/Mesh.h"
+#include "../graphics/VoxelRenderer.h"
+#include "../lighting/Lighting.h"
+#include "../files/WorldFiles.h"
+#include "ChunksLoader.h"
+#include <iostream>
+
+#define LOADERS_COUNT 3
+
+ChunksController::ChunksController(Chunks* chunks, Lighting* lighting) : chunks(chunks), lighting(lighting){
+	loaders = new ChunksLoader*[LOADERS_COUNT];
+	for (int i = 0; i < LOADERS_COUNT; i++){
+		loaders[i] = new ChunksLoader();
+	}
+}
+
+ChunksController::~ChunksController(){
+	for (int i = 0; i < LOADERS_COUNT; i++)
+		delete loaders[i];
+	delete[] loaders;
+}
+
+bool ChunksController::loadVisible(WorldFiles* worldFiles){
+	const int w = chunks->w;
+	const int h = chunks->h;
+	const int d = chunks->d;
+	const int ox = chunks->ox;
+	const int oy = chunks->oy;
+	const int oz = chunks->oz;
+	int nearX = 0;
+	int nearY = 0;
+	int nearZ = 0;
+	int minDistance = (w/2)*(w/2);
+	for (int y = 0; y < h; y++){
+		for (int z = 2; z < d-2; z++){
+			for (int x = 2; x < w-2; x++){
+				int index = (y * d + z) * w + x;
+				Chunk* chunk = chunks->chunks[index];
+				if (chunk != nullptr)
+					continue;
+				int lx = x - w / 2;
+				int ly = y - h / 2;
+				int lz = z - d / 2;
+				int distance = (lx * lx + ly * ly + lz * lz);
+				if (distance < minDistance){
+					minDistance = distance;
+					nearX = x;
+					nearY = y;
+					nearZ = z;
+				}
+			}
+		}
+	}
+
+	int index = (nearY * d + nearZ) * w + nearX;
+	Chunk* chunk = chunks->chunks[index];
+	if (chunk != nullptr)
+		return false;
+
+	ChunksLoader* freeLoader = nullptr;
+	for (int i = 0; i < LOADERS_COUNT; i++){
+		ChunksLoader* loader = loaders[i];
+		if (loader->isBusy())
+			continue;
+		freeLoader = loader;
+		break;
+	}
+	if (freeLoader == nullptr)
+		return false;
+	chunk = new Chunk(nearX+ox,nearY+oy,nearZ+oz);
+	if (worldFiles->getChunk(chunk->x, chunk->z, (char*)chunk->voxels))
+		chunk->generated = true;
+
+	chunks->chunks[index] = chunk;
+
+	Chunk* closes[27];
+	for (int i = 0; i < 27; i++)
+		closes[i] = nullptr;
+	for (size_t j = 0; j < chunks->volume; j++){
+		Chunk* other = chunks->chunks[j];
+		if (other == nullptr)
+			continue;
+		if (!other->ready)
+			continue;
+
+		int ox = other->x - chunk->x;
+		int oy = other->y - chunk->y;
+		int oz = other->z - chunk->z;
+
+		if (abs(ox) > 1 || abs(oy) > 1 || abs(oz) > 1)
+			continue;
+
+		ox += 1;
+		oy += 1;
+		oz += 1;
+		closes[(oy * 3 + oz) * 3 + ox] = other;
+	}
+	freeLoader->perform(chunk, (const Chunk**)closes);
+	return true;
+}
+
+bool ChunksController::_buildMeshes(VoxelRenderer* renderer, int tick) {
+	const int w = chunks->w;
+	const int h = chunks->h;
+	const int d = chunks->d;
+
+	int nearX = 0;
+	int nearY = 0;
+	int nearZ = 0;
+	int minDistance = 1000000000;
+	for (int y = 0; y < h; y++){
+		for (int z = 1; z < d-1; z++){
+			for (int x = 1; x < w-1; x++){
+				int index = (y * d + z) * w + x;
+				Chunk* chunk = chunks->chunks[index];
+				if (chunk == nullptr)
+					continue;
+				Mesh* mesh = chunks->meshes[index];
+				if (mesh != nullptr && !chunk->modified)
+					continue;
+				if (!chunk->ready){
+					continue;
+				}
+				int lx = x - w / 2;
+				int ly = y - h / 2;
+				int lz = z - d / 2;
+				int distance = (lx * lx + ly * ly + lz * lz);
+				if (distance < minDistance){
+					minDistance = distance;
+					nearX = x;
+					nearY = y;
+					nearZ = z;
+				}
+			}
+		}
+	}
+
+	int index = (nearY * d + nearZ) * w + nearX;
+
+
+	Chunk* chunk = chunks->chunks[index];
+	if (chunk == nullptr){
+		for (int y = 0; y < h; y++){
+			for (int z = 1; z < d-1; z++){
+				for (int x = 1; x < w-1; x++){
+					int index = (y * d + z) * w + x;
+					chunk = chunks->chunks[index];
+					if (chunk != nullptr && chunk->ready && !chunk->accepted){
+						int lx = x - w / 2;
+						int ly = y - h / 2;
+						int lz = z - d / 2;
+						int distance = (lx * lx + ly * ly + lz * lz);
+						lighting->onChunkLoaded(chunk->x, chunk->y, chunk->z, false);
+						for (int i = 0; i < chunks->volume; i++){
+							Chunk* other = chunks->chunks[i];
+							if (other)
+								other->modified = true;
+						}
+						chunk->accepted = true;
+						std::cout << "1: built mesh for " << chunk << std::endl;
+						return true;
+					}
+				}
+			}
+		}
+		return false;
+	}
+	Mesh* mesh = chunks->meshes[index];
+	if (mesh == nullptr || chunk->modified){
+		Chunk* closes[27];
+		if (mesh != nullptr)
+			delete mesh;
+		if (chunk->isEmpty()){
+			chunks->meshes[index] = nullptr;
+			return false;
+		}
+		chunk->modified = false;
+		for (int i = 0; i < 27; i++)
+			closes[i] = nullptr;
+		for (size_t j = 0; j < chunks->volume; j++){
+			Chunk* other = chunks->chunks[j];
+			if (other == nullptr)
+				continue;
+			if (!other->ready)
+				continue;
+
+			int ox = other->x - chunk->x;
+			int oy = other->y - chunk->y;
+			int oz = other->z - chunk->z;
+
+			if (abs(ox) > 1 || abs(oy) > 1 || abs(oz) > 1)
+				continue;
+
+			ox += 1;
+			oy += 1;
+			oz += 1;
+			closes[(oy * 3 + oz) * 3 + ox] = other;
+		}
+		mesh = renderer->render(chunk, (const Chunk**)closes);
+		chunks->meshes[index] = mesh;
+		//std::cout << "2: built mesh for " << chunk << std::endl;
+		return true;
+	}
+	return false;
+}

src/voxels/ChunksController.h

@@ -0,0 +1,23 @@
+#ifndef VOXELS_CHUNKSCONTROLLER_H_
+#define VOXELS_CHUNKSCONTROLLER_H_
+
+class Chunks;
+class Lighting;
+class WorldFiles;
+class VoxelRenderer;
+class ChunksLoader;
+
+class ChunksController {
+private:
+	Chunks* chunks;
+	Lighting* lighting;
+	ChunksLoader** loaders;
+public:
+	ChunksController(Chunks* chunks, Lighting* lighting);
+	~ChunksController();
+
+	bool loadVisible(WorldFiles* worldFiles);
+	bool _buildMeshes(VoxelRenderer* renderer, int tick);
+};
+
+#endif /* VOXELS_CHUNKSCONTROLLER_H_ */

src/voxels/ChunksLoader.cpp

@@ -0,0 +1,64 @@
+#include "ChunksLoader.h"
+#include <chrono>
+
+#include "Chunk.h"
+#include "Chunks.h"
+#include "WorldGenerator.h"
+#include "../lighting/Lighting.h"
+
+#include <iostream>
+
+void ChunksLoader::_thread(){
+	Chunks chunks(3,3,3, -1,-1,-1);
+	Lighting lighting(&chunks);
+	while (working){
+		if (current == nullptr){
+			std::this_thread::sleep_for(std::chrono::milliseconds(1));
+			continue;
+		}
+		Chunk* chunk = current;
+		//std::cout << "LOADER: received chunk " << chunk->x << " " << chunk->y << " " << chunk->z << std::endl;
+
+		chunks._setOffset(chunk->x-1, chunk->y-1, chunk->z-1);
+
+		if (!chunk->generated){
+			WorldGenerator::generate(chunk->voxels, chunk->x, chunk->y, chunk->z);
+			//std::cout << "LOADER: generated chunk" << std::endl;
+		}
+
+		/*for (int i = 0; i < 27; i++){
+			Chunk* other = closes[i];
+			if (other == nullptr)
+				continue;
+			chunks.putChunk(other);
+		}*/
+		chunks.putChunk(chunk);
+		lighting.onChunkLoaded(chunk->x, chunk->y, chunk->z, true);
+		chunks.clear(false);
+		for (int i = 0; i < 27; i++){
+			Chunk* other = closes[i];
+			delete other;
+		}
+		chunk->ready = true;
+		current = nullptr;
+		//std::cout << "LOADER: success" << std::endl;
+	}
+}
+
+void ChunksLoader::perform(Chunk* chunk, const Chunk** cs){
+	if (isBusy()){
+		std::cerr << "performing while busy" << std::endl;
+		return;
+	}
+	if (closes == nullptr){
+		closes = new Chunk*[27];
+	}
+	for (int i = 0; i < 27; i++){
+		const Chunk* other = cs[i];
+		if (other == nullptr)
+			closes[i] = nullptr;
+		else
+			closes[i] = other->clone();
+	}
+	current = chunk;
+}

src/voxels/ChunksLoader.h

@@ -0,0 +1,36 @@
+#ifndef VOXELS_CHUNKSLOADER_H_
+#define VOXELS_CHUNKSLOADER_H_
+
+#include <thread>
+#include <atomic>
+
+class Chunk;
+
+class ChunksLoader final {
+private:
+	std::thread loaderThread;
+	void _thread();
+	std::atomic<Chunk*> current {nullptr};
+	std::atomic<Chunk**> closes {nullptr};
+	std::atomic<bool> working {true};
+public:
+	ChunksLoader() : loaderThread{} {
+		loaderThread = std::thread{&ChunksLoader::_thread, this};
+	}
+	~ChunksLoader(){
+		working = false;
+		loaderThread.join();
+	}
+
+	bool isBusy(){
+		return current != nullptr;
+	}
+
+	void perform(Chunk* chunk, const Chunk** closes);
+
+	void stop(){
+		working = false;
+	}
+};
+
+#endif /* VOXELS_CHUNKSLOADER_H_ */

src/voxels/WorldGenerator.cpp

@@ -5,29 +5,129 @@
 #include <math.h>
 #include <glm/glm.hpp>
 #include <glm/gtc/noise.hpp>
+#define FNL_IMPL
+#include "../maths/FastNoiseLite.h"
+#include <time.h>
+
+class PseudoRandom {
+	unsigned seed;
+public:
+	PseudoRandom(){
+		seed = (unsigned)time(0);
+	}
+
+	int rand(){
+		seed = (8253729 * seed + 2396403);
+	    return seed % 32768;
+	}
+
+	void setSeed(int number){
+		seed = (unsigned)number+8253729;
+		rand();
+	}
+};
+
+float calc_height(fnl_state *noise, int real_x, int real_z){
+	const float s = 0.2f;
+	float height = fnlGetNoise3D(noise, real_x*0.0125f*s*32,real_z*0.0125f*s*32, 0.0f);
+	height += fnlGetNoise3D(noise, real_x*0.025f*s*32,real_z*0.025f*s*32, 0.0f)*0.5f;
+	height += fnlGetNoise3D(noise, real_x*0.05f*s*32,real_z*0.05f*s*32, 0.0f)*0.25f;
+	height += fnlGetNoise3D(noise, real_x*0.1f*s*32,real_z*0.1f*s*32, 0.0f)*0.225f;
+	height += fnlGetNoise3D(noise, real_x*0.2f*s*32,real_z*0.2f*s*32, 0.0f)*0.125f;
+	height += fnlGetNoise3D(noise, real_x*0.4f*s*32,real_z*0.4f*s*32, 0.0f)*0.125f*0.5F;
+	height = height * 0.5f + 0.5f;
+	height *= height;
+	height *= (140.0f)*0.12f/s;
+	height += (42)*0.12f/s;
+	return height;
+}
+
+float calc_height_faster(fnl_state *noise, int real_x, int real_z){
+	const float s = 0.2f;
+	float height = fnlGetNoise3D(noise, real_x*0.0125f*s*32,real_z*0.0125f*s*32, 0.0f);
+	height += fnlGetNoise3D(noise, real_x*0.025f*s*32,real_z*0.025f*s*32, 0.0f)*0.5f;
+	height += fnlGetNoise3D(noise, real_x*0.05f*s*32,real_z*0.05f*s*32, 0.0f)*0.25f;
+	height += fnlGetNoise3D(noise, real_x*0.1f*s*32,real_z*0.1f*s*32, 0.0f)*0.225f;
+	height += fnlGetNoise3D(noise, real_x*0.2f*s*32,real_z*0.2f*s*32, 0.0f)*0.125f;
+	//height += fnlGetNoise3D(noise, real_x*0.4f*s*32,real_z*0.4f*s*32, 0.0f)*0.125f*0.5F;
+	height = height * 0.5f + 0.5f;
+	height *= height;
+	height *= (140.0f)*0.12f/s;
+	height += (42)*0.12f/s;
+	return height;
+}
+#include <iostream>
+int generate_tree(fnl_state *noise, PseudoRandom* random, const float* heights, int real_x, int real_y, int real_z, int tileSize){
+	const int tileX = floor((double)real_x/(double)tileSize);
+	const int tileY = floor((double)real_z/(double)tileSize);
+	random->setSeed(tileX*4325261+tileY*12160951+tileSize*9431111);
+
+	bool gentree = fnlGetNoise3D(noise, tileX*3.0f+633, 0.0, tileY*3.0f) > -0.1f && (random->rand() % 10) < 7;
+	if (!gentree)
+		return 0;
+
+	const int randomX = (random->rand() % (tileSize/2)) - tileSize/4;
+	const int randomZ = (random->rand() % (tileSize/2)) - tileSize/4;
+	int centerX = tileX * tileSize + tileSize/2 + randomX;
+	int centerY = tileY * tileSize + tileSize/2 + randomZ;
+	int height = (int)calc_height_faster(noise, centerX, centerY);
+	if (height < 55)
+		return 0;
+	int lx = real_x - centerX;
+	int radius = random->rand() % 4 + 3;
+	int ly = real_y - height - 3 * radius;
+	int lz = real_z - centerY;
+	if (lx == 0 && lz == 0 && real_y - height < 4*radius)
+		return 6;
+	if (lx*lx+ly*ly/2+lz*lz < radius*radius)
+		return 7;
+	return 0;
+}
 
 void WorldGenerator::generate(voxel* voxels, int cx, int cy, int cz){
-	const float s = 0.25f;
+	fnl_state noise = fnlCreateState();
+	noise.noise_type = FNL_NOISE_OPENSIMPLEX2;
+
+	PseudoRandom random;
+
+	float heights[CHUNK_VOL];
+
 	for (int z = 0; z < CHUNK_D; z++){
 		for (int x = 0; x < CHUNK_W; x++){
 			int real_x = x + cx * CHUNK_W;
 			int real_z = z + cz * CHUNK_D;
-			float height = glm::perlin(glm::vec3(real_x*0.0125f*s,real_z*0.0125f*s, 0.0f));
-			height += glm::perlin(glm::vec3(real_x*0.025f*s,real_z*0.025f*s, 0.0f))*0.5f;
-			height += glm::perlin(glm::vec3(real_x*0.05f*s,real_z*0.05f*s, 0.0f))*0.25f;
-			height += glm::perlin(glm::vec3(real_x*0.1f*s,real_z*0.1f*s, 0.0f))*0.225f;
-			height += glm::perlin(glm::vec3(real_x*0.2f*s,real_z*0.2f*s, 0.0f))*0.125f;
-			height = height * 0.5f + 0.5f;
-			height *= height;
-			height *= 140.0f;
-			height += 48;
+			float height = calc_height(&noise, real_x, real_z);
+			heights[z*CHUNK_W+x] = height;
+		}
+	}
+
+	for (int z = 0; z < CHUNK_D; z++){
+		for (int x = 0; x < CHUNK_W; x++){
+			int real_x = x + cx * CHUNK_W;
+			int real_z = z + cz * CHUNK_D;
+			float height = heights[z*CHUNK_W+x];
+
 			for (int y = 0; y < CHUNK_H; y++){
 				int real_y = y + cy * CHUNK_H;
-				int id = 0;
+				int id = real_y < 55 ? 9 : 0;
 				if (real_y == (int)height)
 					id = 2;
-				else if (real_y < height)
+				else if (real_y < height){
+					if (real_y < height-6)
+						id = 8;
+					else
 						id = 1;
+				} else {
+					int tree = generate_tree(&noise, &random, heights, real_x, real_y, real_z, 16);
+					if (tree)
+						id = tree;
+					else if ((tree = generate_tree(&noise, &random, heights, real_x, real_y, real_z, 19))){
+						id = tree;
+					}else if ((tree = generate_tree(&noise, &random, heights, real_x, real_y, real_z, 23))){
+						id = tree;
+					}
+				}
+
 				if (real_y <= 2)
 					id = 2;
 				voxels[(y * CHUNK_D + z) * CHUNK_W + x].id = id;