Ive done literally nothing and this build doesnt work but need to transfer for laptop tomorrow
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93
src/renderer/chunk.cpp
Normal file
93
src/renderer/chunk.cpp
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#include "chunk.hpp"
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#include "shader.hpp"
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#include "camera.hpp"
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#include "voxel.hpp"
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Chunk::Chunk() {
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for (int x = 0; x < CHUNK_WIDTH; x++)
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for (int y = 0; y < CHUNK_HEIGHT; y++)
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for (int z = 0; z < CHUNK_HEIGHT; z++) {
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Voxels.push_back(std::make_shared<Voxel>(x, y, z));
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}
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std::cout << Voxels.size() << " voxels" << std::endl;
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m_mesh();
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}
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Chunk::Chunk(std::vector<std::shared_ptr<Voxel>> voxels) {
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Voxels = voxels;
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m_mesh();
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}
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void Chunk::Render(std::shared_ptr<Camera> camera, std::shared_ptr<Shader> shader) {
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shader->Use();
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glBindVertexArray(m_vao);
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GLint uniTrans = glGetUniformLocation(shader->Program, "model");
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glUniformMatrix4fv(uniTrans, 1, GL_FALSE, glm::value_ptr(m_model));
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GLint uniView = glGetUniformLocation(shader->Program, "view");
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glUniformMatrix4fv(uniView, 1, GL_FALSE, glm::value_ptr(camera->GetViewMatrix()));
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GLint uniProj = glGetUniformLocation(shader->Program, "proj");
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glUniformMatrix4fv(uniProj, 1, GL_FALSE, glm::value_ptr(camera->GetProjectionMatrix()));
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glDrawArrays(GL_TRIANGLES, 0, m_vertices.size());
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}
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void Chunk::Update() {
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m_mesh();
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}
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void Chunk::m_mesh() {
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for (auto& voxel : Voxels) {
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std::vector<glm::vec3>tempVerts;
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std::vector<glm::vec3>tempUVs;
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voxel->GetMesh(tempVerts, tempUVs);
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for (auto& vert : tempVerts)
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m_vertices.push_back(vert);
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for (auto& uv : tempUVs)
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m_uvs.push_back(uv);
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}
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glGenVertexArrays(1, &m_vao);
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glBindVertexArray(m_vao);
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glGenBuffers(1, &m_vbo);
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glBindBuffer(GL_ARRAY_BUFFER, m_vbo);
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std::vector<glm::vec3> data;
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data.insert(data.end(), m_vertices.begin(), m_vertices.end());
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data.insert(data.end(), m_uvs.begin(), m_uvs.end());
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glBufferData(GL_ARRAY_BUFFER, data.size() * sizeof(glm::vec3), &data[0], GL_STATIC_DRAW);
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glEnableVertexAttribArray(0);
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glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, (const void*)0);
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glEnableVertexAttribArray(1);
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glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, (const void*)(m_vertices.size() * sizeof(glm::vec3)));
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glBindVertexArray(0);
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}
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