65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
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//
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// Created by LEI XU on 4/11/19.
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//
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#include "Triangle.hpp"
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#include <algorithm>
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#include <array>
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Triangle::Triangle() {
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v[0] << 0,0,0,1;
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v[1] << 0,0,0,1;
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v[2] << 0,0,0,1;
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color[0] << 0.0, 0.0, 0.0;
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color[1] << 0.0, 0.0, 0.0;
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color[2] << 0.0, 0.0, 0.0;
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tex_coords[0] << 0.0, 0.0;
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tex_coords[1] << 0.0, 0.0;
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tex_coords[2] << 0.0, 0.0;
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}
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void Triangle::setVertex(int ind, Vector4f ver){
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v[ind] = ver;
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}
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void Triangle::setNormal(int ind, Vector3f n){
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normal[ind] = n;
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}
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void Triangle::setColor(int ind, float r, float g, float b) {
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if((r<0.0) || (r>255.) ||
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(g<0.0) || (g>255.) ||
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(b<0.0) || (b>255.)) {
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fprintf(stderr, "ERROR! Invalid color values");
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fflush(stderr);
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exit(-1);
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}
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color[ind] = Vector3f((float)r/255.,(float)g/255.,(float)b/255.);
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return;
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}
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void Triangle::setTexCoord(int ind, Vector2f uv) {
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tex_coords[ind] = uv;
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}
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std::array<Vector4f, 3> Triangle::toVector4() const
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{
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std::array<Vector4f, 3> res;
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std::transform(std::begin(v), std::end(v), res.begin(), [](auto& vec) { return Vector4f(vec.x(), vec.y(), vec.z(), 1.f); });
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return res;
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}
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void Triangle::setNormals(const std::array<Vector3f, 3>& normals)
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{
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normal[0] = normals[0];
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normal[1] = normals[1];
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normal[2] = normals[2];
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}
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void Triangle::setColors(const std::array<Vector3f, 3>& colors)
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{
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auto first_color = colors[0];
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setColor(0, colors[0][0], colors[0][1], colors[0][2]);
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setColor(1, colors[1][0], colors[1][1], colors[1][2]);
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setColor(2, colors[2][0], colors[2][1], colors[2][2]);
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}
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