248 lines
7.9 KiB
C++
248 lines
7.9 KiB
C++
#include "renderer.h"
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Renderer::Renderer() {
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m_meshes.Reset(nullptr);
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}
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Renderer::~Renderer() {
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}
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void Renderer::RemoveChunk(int nbReduit)
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{
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for (int x = 0; x < WORLD_SIZE_X; ++x)
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for (int y = 0; y < WORLD_SIZE_Y; ++y)
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{
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Mesh* chk = nullptr;
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if (x < nbReduit)
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chk = m_meshes.Remove(x, y);
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if (y < nbReduit)
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chk = m_meshes.Remove(x, y);
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if (y > WORLD_SIZE_Y - nbReduit)
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chk = m_meshes.Remove(x, y);
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if (x > WORLD_SIZE_X - nbReduit)
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chk = m_meshes.Remove(x, y);
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// TODO: MakeDirty() les voisins pour qu'ils se redessinent.
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if (!chk)
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continue;
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delete chk;
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}
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}
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void Renderer::RenderWorld(World* origin, int& rendercount, const Vector3f& player_pos, const Vector3f& player_dir, Transformation& world, Shader& shader, TextureAtlas& atlas) const {
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rendercount = 0;
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Vector3f angle;
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Vector3f cursor;
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Vector3f direct = player_dir;
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Vector3f pos = player_pos - direct;
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direct.y = 0;
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direct.Normalize();
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pos.y = 1;
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static Vector3<unsigned int> renderManifest[VIEW_DISTANCE * 8]; // Nombre de Chunks maximal <20> <20>tre rendus.
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//for (int dist = VIEW_DISTANCE; dist >= 0; dist -= CHUNK_SIZE_X) {
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for (int dist = 0; dist <= VIEW_DISTANCE; dist += CHUNK_SIZE_X) {
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// Configuration du radar.
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float sinus, cosinus;
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int echantillons;
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if (dist > VIEW_DISTANCE * .1f) {
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sinus = .00872653549f; // sin(1/2 degr<67>)
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cosinus = .99996192306; // cos(1/2 degr<67>)
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echantillons = 180;
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}
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//else {//if (dist > VIEW_DISTANCE * .3f) {
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// sinus = .01151891831f; // sin(2/3 degr<67>)
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// cosinus = .99993365506; // cos(2/3 degr<67>)
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// echantillons = 120;
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//}
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//else if (dist > VIEW_DISTANCE * .2f) {
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// sinus = .01745240643; // sin(1 degr<67>)
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// cosinus = .99984769515; // cos(1 degr<67>)
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// echantillons = 90;
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//}
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//else if (dist > VIEW_DISTANCE * .1f) {
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// sinus = .0261769483;
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// cosinus = .99965732497;
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// echantillons = 60;
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//}
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else {
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sinus = .0348994967;
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cosinus = .99939082701;
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echantillons = 45;
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}
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angle.x = direct.z + direct.x;
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angle.z = direct.z - direct.x;
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angle.y = 0;
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angle.Normalize();
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for (int radar = 0; radar < echantillons; ++radar) {
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float x = angle.x;
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angle.x = angle.x * cosinus - angle.z * sinus;
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angle.z = angle.z * cosinus + x * sinus;
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angle.Normalize();
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cursor = pos - direct * CHUNK_SIZE_X * 4 + angle * dist;
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if (cursor.y >= 128.f || cursor.y >= 0.f) cursor.y = CHUNK_SIZE_Y / 4.f;
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if (origin->ChunkAt(cursor)) {
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bool valide = true;
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unsigned int chx, chy;
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origin->ChunkAt(cursor)->GetPosition(chx, chy);
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for (int index = 0; index < rendercount; ++index) // Permet de v<>rifier seulement contre celles ajout<75>es dans la frame, et ne pas avoir <20> refaire l'array <20> chaque frame.
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if (renderManifest[index].x == chx && renderManifest[index].z == chy)
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valide = false;
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if (valide) renderManifest[rendercount++] = Vector3<unsigned int>(chx,
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(VIEW_DISTANCE - (pos - cursor).Length() * 3.f + 256.f) < 0.f ? 0 :
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(VIEW_DISTANCE - (pos - cursor).Length() * 3.f + 256.f) * 1000,
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chy);
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}
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}
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}
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shader.Use();
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atlas.Bind();
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glStencilFunc(GL_EQUAL, 1, 0x00);
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glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
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unsigned int sx, sy, cx, cy;
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origin->GetScope(sx,sy);
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for (int index = 0; index < rendercount; ++index) {
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int chx = (renderManifest[index].x - sx) * CHUNK_SIZE_X, chy = (renderManifest[index].z - sy) * CHUNK_SIZE_Z;
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world.ApplyTranslation(chx, 0, chy);
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glLoadMatrixf(world.GetMatrix().GetInternalValues());
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float blcolor = renderManifest[index].y / (VIEW_DISTANCE / 50.f);
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glBlendColor(blcolor, blcolor, blcolor, 1.f);
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origin->ChunkAt(chx, 1, chy)->GetPosition(cx,cy);
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if (m_meshes.Get(cx - sx, cy - sy))
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m_meshes.Get(cx - sx, cy -sy)->Render();
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world.ApplyTranslation(-chx, 0, -chy);
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}
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shader.Disable();
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glStencilFunc(GL_GREATER, 1, 0xFF);
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};
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void Renderer::UpdateMesh(World* origin, const Vector3f& player, BlockInfo* blockinfo[BTYPE_LAST]) {
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int cx = player.x;
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int cy = player.z;
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static int frameUpdate = 2;
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int side = 0;
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int threads = 0;
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std::future<Mesh*> updateThList[THREADS_UPDATE_CHUNKS];
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unsigned int mx = 0 , my = 0, sx, sy;
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origin->GetScope(sx, sy);
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if (frameUpdate > 0) --frameUpdate;
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if (!frameUpdate)
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while (side * CHUNK_SIZE_X <= VIEW_DISTANCE * 2) {
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int tx = -side, ty = -side;
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for (; tx <= side; ++tx) {
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if (frameUpdate)
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break;
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unsigned int chx = cx + tx * CHUNK_SIZE_X, chy = cy + ty * CHUNK_SIZE_Z;
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if (origin->ChunkAt(chx, 1, chy) &&
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origin->ChunkAt(chx, 1, chy)->IsDirty()) {
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origin->ChunkAt(chx, 1, chy)->GetPosition(mx, my);
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if (m_meshes.Get(mx - sx, my - sy))
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updateThList[threads++] =
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std::async(std::launch::async,
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[](Mesh* mesh, BlockInfo* blockinfo[BTYPE_LAST], World* world) {
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mesh->Update(blockinfo, world); return mesh; }, m_meshes.Get(mx - sx, my - sy), blockinfo, origin);
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else updateThList[threads++] = std::async(std::launch::async,
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[](Chunk* chunk) { return new Mesh(chunk); }, origin->ChunkAt(chx, 1, chy));
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if (threads == THREADS_UPDATE_CHUNKS) frameUpdate = FRAMES_UPDATE_CHUNKS;
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}
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}
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for (; ty <= side; ++ty) {
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if (frameUpdate)
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break;
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unsigned int chx = cx + tx * CHUNK_SIZE_X, chy = cy + ty * CHUNK_SIZE_Z;
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if (origin->ChunkAt(chx, 1, chy) &&
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origin->ChunkAt(chx, 1, chy)->IsDirty()) {
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origin->ChunkAt(chx, 1, chy)->GetPosition(mx, my);
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if (m_meshes.Get(mx - sx, my - sy))
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updateThList[threads++] =
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std::async(std::launch::async,
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[](Mesh* mesh, BlockInfo* blockinfo[BTYPE_LAST], World* world) {
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mesh->Update(blockinfo, world); return mesh; }, m_meshes.Get(mx - sx, my - sy), blockinfo, origin);
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else updateThList[threads++] = std::async(std::launch::async,
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[](Chunk* chunk) { return new Mesh(chunk); }, origin->ChunkAt(chx, 1, chy));
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if (threads == THREADS_UPDATE_CHUNKS) frameUpdate = FRAMES_UPDATE_CHUNKS;
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}
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}
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for (; tx >= -side; --tx) {
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if (frameUpdate)
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break;
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unsigned int chx = cx + tx * CHUNK_SIZE_X, chy = cy + ty * CHUNK_SIZE_Z;
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if (origin->ChunkAt(chx, 1, chy) &&
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origin->ChunkAt(chx, 1, chy)->IsDirty()) {
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origin->ChunkAt(chx, 1, chy)->GetPosition(mx, my);
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if (m_meshes.Get(mx - sx, my - sy))
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updateThList[threads++] =
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std::async(std::launch::async,
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[](Mesh* mesh, BlockInfo* blockinfo[BTYPE_LAST], World* world) {
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mesh->Update(blockinfo, world); return mesh; }, m_meshes.Get(mx - sx, my - sy), blockinfo, origin);
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else updateThList[threads++] = std::async(std::launch::async,
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[](Chunk* chunk) { return new Mesh(chunk); }, origin->ChunkAt(chx, 1, chy));
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if (threads == THREADS_UPDATE_CHUNKS) frameUpdate = FRAMES_UPDATE_CHUNKS;
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}
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}
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for (; ty >= -side; --ty) {
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if (frameUpdate)
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break;
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unsigned int chx = cx + tx * CHUNK_SIZE_X, chy = cy + ty * CHUNK_SIZE_Z;
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if (origin->ChunkAt(chx, 1, chy) &&
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origin->ChunkAt(chx, 1, chy)->IsDirty()) {
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origin->ChunkAt(chx, 1, chy)->GetPosition(mx, my);
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if (m_meshes.Get(mx - sx, my - sy))
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updateThList[threads++] =
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std::async(std::launch::async,
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[](Mesh* mesh, BlockInfo* blockinfo[BTYPE_LAST], World* world) {
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mesh->Update(blockinfo, world); return mesh; }, m_meshes.Get(mx - sx, my - sy), blockinfo, origin);
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else updateThList[threads++] = std::async(std::launch::async,
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[](Chunk* chunk) { return new Mesh(chunk); }, origin->ChunkAt(chx, 1, chy));
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if (threads == THREADS_UPDATE_CHUNKS) frameUpdate = FRAMES_UPDATE_CHUNKS;
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}
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}
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if (frameUpdate)
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break;
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++side;
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}
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if (threads > 0) {
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for (int i = 0; i < threads; ++i) {
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updateThList[i].wait();
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Mesh* mesh = updateThList[i].get();
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if (mesh->IsNew()) {
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unsigned int x, y;
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mesh->GetPosition(x, y, origin);
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m_meshes.Set(x, y, mesh);
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}
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mesh->FlushMeshToVBO();
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}
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}
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}
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void Renderer::RenderPlayer(Player* player, Transformation tran) const {
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}
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void Renderer::RenderPlayer(RemotePlayer* rplayer, const Vector3f& player_pos, const Vector3f& player_dir) const {
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}
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