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-rw-r--r--src/graphics/RenderSection.cpp338
1 files changed, 0 insertions, 338 deletions
diff --git a/src/graphics/RenderSection.cpp b/src/graphics/RenderSection.cpp
deleted file mode 100644
index b07759a..0000000
--- a/src/graphics/RenderSection.cpp
+++ /dev/null
@@ -1,338 +0,0 @@
-#include <graphics/RenderSection.hpp>
-
-const GLfloat vertices[] = {
- 0, 0, 0,
- 1, 0, 1,
- 1, 0, 0,
-
- 0, 0, 0,
- 0, 0, 1,
- 1, 0, 1,
-};
-
-const GLfloat uv_coords[] = {
- 0.0f, 0.0f,
- 1.0f, 1.0f,
- 0.0f, 1.0f,
-
- 0.0f, 0.0f,
- 1.0f, 0.0f,
- 1.0f, 1.0f,
-};
-
-void RenderState::SetActiveVao(GLuint Vao) {
- if (Vao != ActiveVao) {
- glBindVertexArray(Vao);
- ActiveVao = Vao;
- }
-}
-
-void RenderState::SetActiveShader(GLuint Shader) {
- if (Shader != ActiveShader) {
- glUseProgram(Shader);
- ActiveShader = Shader;
- }
-}
-
-const GLuint magicUniqueConstant = 88375;
-GLuint RenderSection::VboVertices = magicUniqueConstant;
-GLuint RenderSection::VboUvs = magicUniqueConstant;
-std::map<GLuint, int> RenderSection::refCounterVbo;
-std::map<GLuint, int> RenderSection::refCounterVao;
-
-
-RenderSection::RenderSection(World *world, Vector position) : sectionPosition(position), world(world) {
-
- if (VboVertices == magicUniqueConstant) {
- glGenBuffers(1, &VboVertices);
- glGenBuffers(1, &VboUvs);
-
- //Cube vertices
- glBindBuffer(GL_ARRAY_BUFFER, VboVertices);
- glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
-
- //Cube UVs
- glBindBuffer(GL_ARRAY_BUFFER, VboUvs);
- glBufferData(GL_ARRAY_BUFFER, sizeof(uv_coords), uv_coords, GL_STATIC_DRAW);
-
- LOG(INFO) << "Created VBOs with vertices (" << VboVertices << ") and UVs (" << VboUvs
- << ") for ordinary blocks";
- }
-
- glGenBuffers(1, &VboTextures);
- if (refCounterVbo.find(VboTextures) == refCounterVbo.end())
- refCounterVbo[VboTextures] = 0;
- refCounterVbo[VboTextures]++;
-
- glGenBuffers(1, &VboModels);
- if (refCounterVbo.find(VboModels) == refCounterVbo.end())
- refCounterVbo[VboModels] = 0;
- refCounterVbo[VboModels]++;
-
- glGenBuffers(1, &VboColors);
- if (refCounterVbo.find(VboColors) == refCounterVbo.end())
- refCounterVbo[VboColors] = 0;
- refCounterVbo[VboColors]++;
-
- glGenVertexArrays(1, &Vao);
- if (refCounterVao.find(Vao) == refCounterVao.end())
- refCounterVao[Vao] = 0;
- refCounterVao[Vao]++;
-
- glBindVertexArray(Vao);
- {
- //Cube vertices
- GLuint VertAttribPos = 0;
- glBindBuffer(GL_ARRAY_BUFFER, VboVertices);
- glVertexAttribPointer(VertAttribPos, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), nullptr);
- glEnableVertexAttribArray(VertAttribPos);
-
- //Cube UVs
- GLuint UvAttribPos = 2;
- glBindBuffer(GL_ARRAY_BUFFER, VboUvs);
- glVertexAttribPointer(UvAttribPos, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(GLfloat), nullptr);
- glEnableVertexAttribArray(UvAttribPos);
-
- //Textures
- GLuint textureAttribPos = 7;
- glBindBuffer(GL_ARRAY_BUFFER, VboTextures);
- glVertexAttribPointer(textureAttribPos, 4, GL_FLOAT, GL_FALSE, 4 * sizeof(GLfloat), nullptr);
- glEnableVertexAttribArray(textureAttribPos);
- glVertexAttribDivisor(textureAttribPos, 1);
- glCheckError();
-
- //Blocks models
- GLuint matAttribPos = 8;
- size_t sizeOfMat4 = 4 * 4 * sizeof(GLfloat);
- glBindBuffer(GL_ARRAY_BUFFER, VboModels);
- glVertexAttribPointer(matAttribPos + 0, 4, GL_FLOAT, GL_FALSE, sizeOfMat4, nullptr);
- glVertexAttribPointer(matAttribPos + 1, 4, GL_FLOAT, GL_FALSE, sizeOfMat4, (void *) (1 * 4 * sizeof(GLfloat)));
- glVertexAttribPointer(matAttribPos + 2, 4, GL_FLOAT, GL_FALSE, sizeOfMat4, (void *) (2 * 4 * sizeof(GLfloat)));
- glVertexAttribPointer(matAttribPos + 3, 4, GL_FLOAT, GL_FALSE, sizeOfMat4, (void *) (3 * 4 * sizeof(GLfloat)));
- glEnableVertexAttribArray(matAttribPos + 0);
- glEnableVertexAttribArray(matAttribPos + 1);
- glEnableVertexAttribArray(matAttribPos + 2);
- glEnableVertexAttribArray(matAttribPos + 3);
- glVertexAttribDivisor(matAttribPos + 0, 1);
- glVertexAttribDivisor(matAttribPos + 1, 1);
- glVertexAttribDivisor(matAttribPos + 2, 1);
- glVertexAttribDivisor(matAttribPos + 3, 1);
-
- //Color
- GLuint colorAttribPos = 12;
- glBindBuffer(GL_ARRAY_BUFFER, VboColors);
- glVertexAttribPointer(colorAttribPos, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), nullptr);
- glEnableVertexAttribArray(colorAttribPos);
- glVertexAttribDivisor(colorAttribPos, 1);
-
- glBindBuffer(GL_ARRAY_BUFFER, 0);
- }
- glBindVertexArray(0);
- glCheckError();
-}
-
-RenderSection::~RenderSection() {
- refCounterVbo[VboTextures]--;
- refCounterVbo[VboModels]--;
- refCounterVbo[VboColors]--;
- refCounterVao[Vao]--;
- if (refCounterVbo[VboTextures] <= 0)
- glDeleteBuffers(1, &VboTextures);
- if (refCounterVbo[VboModels] <= 0)
- glDeleteBuffers(1, &VboTextures);
- if (refCounterVbo[VboColors] <= 0)
- glDeleteBuffers(1, &VboColors);
-
- if (refCounterVao[Vao] <= 0)
- glDeleteVertexArrays(1, &Vao);
-}
-
-void RenderSection::UpdateState(const std::map<BlockTextureId, glm::vec4> &textureAtlas) {
- Section &section = world->GetSection(sectionPosition);
- std::vector<glm::mat4> models;
- std::vector<glm::vec4> textures;
- std::vector<glm::vec3> colors;
- for (int y = 0; y < 16; y++) {
- for (int z = 0; z < 16; z++) {
- for (int x = 0; x < 16; x++) {
- Vector blockPos = Vector(x, y, z) + (sectionPosition * 16);
- Block &block = world->GetBlock(blockPos);
- if (block.id == 0)
- continue;
-
- auto checkBlockVisibility = [&](Vector block) -> bool {
- return section.GetBlock(block).id == 0 ||
- section.GetBlock(block).id == 31 ||
- section.GetBlock(block).id == 18;
- };
-
- unsigned char isVisible = 0;
- if (x == 0 || x == 15 || y == 0 || y == 15 || z == 0 || z == 15) {
- isVisible = 0b1111'1111; //All faces is visible
- } else {
- isVisible |= checkBlockVisibility(Vector(x - 1, y, z)) << 0;
- isVisible |= checkBlockVisibility(Vector(x + 1, y, z)) << 1;
- isVisible |= checkBlockVisibility(Vector(x, y + 1, z)) << 2;
- isVisible |= checkBlockVisibility(Vector(x, y - 1, z)) << 3;
- isVisible |= checkBlockVisibility(Vector(x, y, z - 1)) << 4;
- isVisible |= checkBlockVisibility(Vector(x, y, z + 1)) << 5;
- }
-
- if (isVisible == 0x00)
- continue;
-
- glm::mat4 transform;
- transform = glm::translate(transform, glm::vec3(sectionPosition.GetX() * 16,
- sectionPosition.GetY() * 16,
- sectionPosition.GetZ() * 16));
- transform = glm::translate(transform, glm::vec3(x, y, z));
- glm::vec3 biomeColor(0.275, 0.63, 0.1);
- glm::vec3 color(0.0f, 0.0f, 0.0f);
- if (block.id == 31 || block.id == 18)
- color = biomeColor;
-
- if (block.id == 31) { //X-cross like blocks rendering
- auto texture = textureAtlas.find(BlockTextureId(block.id, block.state, 2));
- for (int i = 0; i < 4; i++) {
- textures.push_back(texture->second);
- colors.push_back(color);
- }
- glm::mat4 faceTransform = glm::translate(transform, glm::vec3(0.15f, 0, 0.15f));
- faceTransform = glm::scale(faceTransform, glm::vec3(1.0f, 0.9f, 1.0f));
- faceTransform = glm::rotate(faceTransform, glm::radians(90.0f), glm::vec3(0, 0.0f, 1.0f));
- faceTransform = glm::rotate(faceTransform, glm::radians(45.0f), glm::vec3(1.0f, 0.0f, 0));
- for (int i = 0; i < 4; i++) {
- models.push_back(faceTransform);
- faceTransform = glm::translate(faceTransform, glm::vec3(0.0f, 0.0f, 0.5f));
- faceTransform = glm::rotate(faceTransform, glm::radians(90.0f), glm::vec3(1.0f, 0.0f, 0.0f));
- faceTransform = glm::translate(faceTransform, glm::vec3(0.0f, 0.0f, -0.5f));
- }
- continue;
- }
-
- if (isVisible >> 0 & 0x1) { //east side of block (X+)
- glm::mat4 faceTransform = glm::translate(transform, glm::vec3(0, 0, 0));
- faceTransform = glm::rotate(faceTransform, glm::radians(90.0f), glm::vec3(0, 0.0f, 1.0f));
- models.push_back(faceTransform);
- auto texture = textureAtlas.find(BlockTextureId(block.id, block.state, 2));
- if (texture != textureAtlas.end())
- textures.push_back(texture->second);
- else
- textures.push_back(glm::vec4(0.0546875, 0.00442477876106194690,
- 0.0078125, 0.00442477876106194690)); //Fallback TNT texture
- colors.push_back(color);
- }
- if (isVisible >> 1 & 0x1) { //west side X-
- glm::mat4 faceTransform = glm::translate(transform, glm::vec3(1, 0, 0));
- faceTransform = glm::rotate(faceTransform, glm::radians(90.0f), glm::vec3(0, 0.0f, 1.0f));
- faceTransform = glm::rotate(faceTransform, glm::radians(180.0f), glm::vec3(1.0f, 0.0f, 0.0f));
- faceTransform = glm::translate(faceTransform, glm::vec3(0, 0, -1));
- models.push_back(faceTransform);
- auto texture = textureAtlas.find(BlockTextureId(block.id, block.state, 3));
- if (texture != textureAtlas.end())
- textures.push_back(texture->second);
- else
- textures.push_back(glm::vec4(0.0546875, 0.00442477876106194690,
- 0.0078125, 0.00442477876106194690)); //Fallback TNT texture
- colors.push_back(color);
- }
- if (isVisible >> 2 & 0x1) { //Top side Y+
- glm::mat4 faceTransform = glm::translate(transform, glm::vec3(0, 1, 0));
- models.push_back(faceTransform);
- auto texture = textureAtlas.find(BlockTextureId(block.id, block.state, 1));
- if (texture != textureAtlas.end())
- textures.push_back(texture->second);
- else
- textures.push_back(glm::vec4(0.0546875, 0.00442477876106194690,
- 0.0078125, 0.00442477876106194690)); //Fallback TNT texture
- if (block.id != 2)
- colors.push_back(color);
- else
- colors.push_back(biomeColor);
- }
- if (isVisible >> 3 & 0x1) { //Bottom side Y-
- glm::mat4 faceTransform = glm::translate(transform, glm::vec3(0, 0, 0));
- faceTransform = glm::rotate(faceTransform, glm::radians(180.0f), glm::vec3(1.0f, 0, 0));
- faceTransform = glm::translate(faceTransform, glm::vec3(0, 0, -1));
- models.push_back(faceTransform);
- auto texture = textureAtlas.find(BlockTextureId(block.id, block.state, 0));
- if (texture != textureAtlas.end())
- textures.push_back(texture->second);
- else
- textures.push_back(glm::vec4(0.0546875, 0.00442477876106194690,
- 0.0078125, 0.00442477876106194690)); //Fallback TNT texture
- colors.push_back(color);
- }
- if (isVisible >> 4 & 0x1) { //south side Z+
- glm::mat4 faceTransform = glm::translate(transform, glm::vec3(1, 0, 0));
- faceTransform = glm::rotate(faceTransform, glm::radians(90.0f), glm::vec3(-1.0f, 0.0f, 0.0f));
- faceTransform = glm::rotate(faceTransform, glm::radians(90.0f), glm::vec3(0.0f, -1.0f, 0.0f));
- models.push_back(faceTransform);
- auto texture = textureAtlas.find(BlockTextureId(block.id, block.state, 3));
- if (texture != textureAtlas.end())
- textures.push_back(texture->second);
- else
- textures.push_back(glm::vec4(0.0546875, 0.00442477876106194690,
- 0.0078125, 0.00442477876106194690)); //Fallback TNT texture
- colors.push_back(color);
- }
- if (isVisible >> 5 & 0x1) { //north side Z-
- glm::mat4 faceTransform = glm::translate(transform, glm::vec3(0, 0, 1));
- faceTransform = glm::rotate(faceTransform, glm::radians(90.0f), glm::vec3(-1.0f, 0.0f, 0.0f));
- faceTransform = glm::rotate(faceTransform, glm::radians(90.0f), glm::vec3(0.0f, -1.0f, 0.0f));
- faceTransform = glm::translate(faceTransform, glm::vec3(0, 0, -1));
- faceTransform = glm::rotate(faceTransform, glm::radians(180.0f), glm::vec3(1, 0, 0.0f));
- faceTransform = glm::translate(faceTransform, glm::vec3(0, 0, -1.0f));
- models.push_back(faceTransform);
- auto texture = textureAtlas.find(BlockTextureId(block.id, block.state, 4));
- if (texture != textureAtlas.end())
- textures.push_back(texture->second);
- else
- textures.push_back(glm::vec4(0.0546875, 0.00442477876106194690,
- 0.0078125, 0.00442477876106194690)); //Fallback TNT texture
- colors.push_back(color);
- }
- }
- }
- }
-
- glBindBuffer(GL_ARRAY_BUFFER, VboTextures);
- glBufferData(GL_ARRAY_BUFFER, textures.size() * sizeof(glm::vec4), textures.data(), GL_DYNAMIC_DRAW);
-
- glBindBuffer(GL_ARRAY_BUFFER, VboModels);
- glBufferData(GL_ARRAY_BUFFER, models.size() * sizeof(glm::mat4), models.data(), GL_DYNAMIC_DRAW);
-
- glBindBuffer(GL_ARRAY_BUFFER, VboColors);
- glBufferData(GL_ARRAY_BUFFER, colors.size() * sizeof(glm::vec3), colors.data(), GL_DYNAMIC_DRAW);
-
- glBindBuffer(GL_ARRAY_BUFFER, 0);
-
- glCheckError();
-
- numOfFaces = textures.size();
-}
-
-void RenderSection::Render(RenderState &state) {
- state.SetActiveVao(Vao);
- glDrawArraysInstanced(GL_TRIANGLES, 0, 6, numOfFaces);
- glCheckError();
-}
-
-Section *RenderSection::GetSection() {
- return &world->GetSection(sectionPosition);
-}
-
-RenderSection::RenderSection(const RenderSection &other) {
- this->world = other.world;
- this->VboModels = other.VboModels;
- this->VboTextures = other.VboTextures;
- this->VboColors = other.VboColors;
- this->sectionPosition = other.sectionPosition;
- this->Vao = other.Vao;
- this->numOfFaces = other.numOfFaces;
-
- refCounterVbo[VboTextures]++;
- refCounterVbo[VboModels]++;
- refCounterVbo[VboColors]++;
- refCounterVao[Vao]++;
-}
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