76 lines
1.8 KiB
C++
76 lines
1.8 KiB
C++
#pragma once
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#include "DeerCore/Voxel.h"
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#include "DeerRender/Mesh.h"
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#include "glm/glm.hpp"
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#include <array>
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#include <vector>
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namespace Deer {
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struct VoxelVertex {
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VoxelVertex() = default;
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VoxelVertex(glm::vec3 _position) : position(_position) {}
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glm::vec3 position;
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};
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struct VoxelFaceData {
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// Basic construction
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std::vector<VoxelVertex> vertices;
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std::vector<uint32_t> triangles;
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std::array<std::vector<uint32_t>, 4> connections;
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std::array<uint32_t, 4> edges;
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};
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class VoxelBuilder {
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public:
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Resource<GPUMesh> buildCluster(int x, int y, int z);
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VoxelBuilder(VoxelEnvironment* env) : environment(env) {}
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private:
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struct VoxelData {
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int16_t vertexIndexFace[6] = {-1, -1, -1, -1, -1, -1};
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};
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struct VertexData {
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glm::vec3 position;
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glm::vec3 normal;
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float extrussion;
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};
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private:
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void addFace(VoxelFaceData& data, glm::vec3 origin, glm::vec3 up, glm::vec3 right);
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void calculateNormals();
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void buildVertices();
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void buildFaceVertices(int x, int y, int z, int face);
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void buildConnections();
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void buildAxisConnections(int x, int y, int z);
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void connectVertices(VoxelFaceData& face1, int edgeIndex1, int face1VertexOffset, VoxelFaceData& face2, int edgeIndex2, int face2VertexOffset);
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void buildMarchingCubesCorners();
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void buildMarchingVoxel(int x, int y, int z, uint8_t marchingCubeId);
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int getVertexIdCorner(int x, int y, int z, int edge);
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VoxelData& getVoxelData(int x, int y, int z);
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void clearVoxelData();
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bool hasBlock(int x, int y, int z);
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std::vector<VertexData> vertices;
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std::vector<u_int32_t> indices;
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int voxelXOffset;
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int voxelYOffset;
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int voxelZOffset;
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VoxelEnvironment* environment;
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VoxelData voxelData[CLUSTER_SIZE + 2][CLUSTER_SIZE + 2][CLUSTER_SIZE + 2];
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friend VoxelEnvironment;
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};
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} // namespace Deer
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