42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
#include "Model.hpp"
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#include <algorithm>
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using namespace model;
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inline constexpr glm::vec3 X(1, 0, 0);
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inline constexpr glm::vec3 Y(0, 1, 0);
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inline constexpr glm::vec3 Z(0, 0, 1);
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void Mesh::addPlane(glm::vec3 pos, glm::vec3 right, glm::vec3 up, glm::vec3 norm) {
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vertices.push_back({pos-right-up, {0,0}, norm});
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vertices.push_back({pos+right-up, {1,0}, norm});
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vertices.push_back({pos+right+up, {1,1}, norm});
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vertices.push_back({pos-right-up, {0,0}, norm});
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vertices.push_back({pos+right+up, {1,1}, norm});
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vertices.push_back({pos-right+up, {0,1}, norm});
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}
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void Mesh::addBox(glm::vec3 pos, glm::vec3 size) {
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addPlane(pos+Z*size, X*size, Y*size, Z);
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addPlane(pos-Z*size, -X*size, Y*size, -Z);
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addPlane(pos+Y*size, X*size, -Z*size, Y);
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addPlane(pos-Y*size, X*size, Z*size, -Y);
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addPlane(pos+X*size, -Z*size, Y*size, X);
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addPlane(pos-X*size, Z*size, Y*size, -X);
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}
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void Model::clean() {
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meshes.erase(
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std::remove_if(meshes.begin(), meshes.end(),
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[](const Mesh& mesh){
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return mesh.vertices.empty();
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}),
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meshes.end()
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);
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}
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