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48 lines
930 B
C++
48 lines
930 B
C++
#ifndef MESH_BUILDER_H
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#define MESH_BUILDER_H
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#include "../utility.h"
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#include <scene/resources/mesh.h>
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#include <map>
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#include <vector>
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namespace dmc {
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// Faster than SurfaceTool, only does what is needed to build a smooth mesh
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class MeshBuilder {
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public:
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inline void add_vertex(Vector3 position, Vector3 normal) {
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int i = 0;
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// TODO Debug this to see if it's effectively indexing
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if (_position_to_index.find(position) != _position_to_index.end()) {
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i = _position_to_index[position];
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} else {
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i = _positions.size();
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_position_to_index[position] = i;
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_positions.push_back(position);
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_normals.push_back(normal);
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}
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_indices.push_back(i);
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}
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Ref<ArrayMesh> commit(bool wireframe);
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void clear();
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private:
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std::vector<Vector3> _positions;
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std::vector<Vector3> _normals;
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std::vector<int> _indices;
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std::map<Vector3, int> _position_to_index;
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};
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} // namespace dmc
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#endif // MESH_BUILDER_H
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