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- /*!
- * \file src/Mesh.cpp
- * \brief OpenGL Mesh
- *
- * \author xythobuz
- */
-
- #include "global.h"
- #include "TextureManager.h"
- #include "Mesh.h"
-
- Mesh::Mesh(const std::vector<glm::vec3>& vert,
- const std::vector<IndexedRectangle>& rect,
- const std::vector<IndexedRectangle>& tri,
- const std::vector<IndexedColoredRectangle>& coloredRect,
- const std::vector<IndexedColoredRectangle>& coloredTri) {
- for (auto& t : rect) {
- indicesBuff.push_back(0);
- verticesBuff.push_back(glm::vec3(vert.at(t.v1).x, vert.at(t.v1).y, vert.at(t.v1).z));
- verticesBuff.push_back(glm::vec3(vert.at(t.v2).x, vert.at(t.v2).y, vert.at(t.v2).z));
- verticesBuff.push_back(glm::vec3(vert.at(t.v3).x, vert.at(t.v3).y, vert.at(t.v3).z));
- verticesBuff.push_back(glm::vec3(vert.at(t.v4).x, vert.at(t.v4).y, vert.at(t.v4).z));
- texturesBuff.push_back(t.texture);
- }
-
- for (auto& t : tri) {
- indicesBuff.push_back(1);
- verticesBuff.push_back(glm::vec3(vert.at(t.v1).x, vert.at(t.v1).y, vert.at(t.v1).z));
- verticesBuff.push_back(glm::vec3(vert.at(t.v2).x, vert.at(t.v2).y, vert.at(t.v2).z));
- verticesBuff.push_back(glm::vec3(vert.at(t.v3).x, vert.at(t.v3).y, vert.at(t.v3).z));
- texturesBuff.push_back(t.texture);
- }
-
- for (auto& t : coloredRect) {
- indicesColorBuff.push_back(0);
- verticesColorBuff.push_back(glm::vec3(vert.at(t.v1).x, vert.at(t.v1).y, vert.at(t.v1).z));
- verticesColorBuff.push_back(glm::vec3(vert.at(t.v2).x, vert.at(t.v2).y, vert.at(t.v2).z));
- verticesColorBuff.push_back(glm::vec3(vert.at(t.v3).x, vert.at(t.v3).y, vert.at(t.v3).z));
- verticesColorBuff.push_back(glm::vec3(vert.at(t.v4).x, vert.at(t.v4).y, vert.at(t.v4).z));
- colorsBuff.push_back(glm::vec3(t.r, t.g, t.b));
- }
-
- for (auto& t : coloredTri) {
- indicesColorBuff.push_back(1);
- verticesColorBuff.push_back(glm::vec3(vert.at(t.v1).x, vert.at(t.v1).y, vert.at(t.v1).z));
- verticesColorBuff.push_back(glm::vec3(vert.at(t.v2).x, vert.at(t.v2).y, vert.at(t.v2).z));
- verticesColorBuff.push_back(glm::vec3(vert.at(t.v3).x, vert.at(t.v3).y, vert.at(t.v3).z));
- colorsBuff.push_back(glm::vec3(t.r, t.g, t.b));
- }
- }
-
- void Mesh::prepare() {
- std::vector<unsigned short> ind;
- std::vector<glm::vec3> vert;
- std::vector<glm::vec2> uvBuff;
- std::vector<unsigned int> tex;
-
- int vertIndex = 0;
- for (int i = 0; i < indicesBuff.size(); i++) {
- unsigned int texture = TextureManager::getTile(texturesBuff.at(i)).getTexture();
- for (int v = 0; v < ((indicesBuff.at(i) == 0) ? 4 : 3); v++) {
- ind.push_back(vert.size());
- vert.push_back(verticesBuff.at(vertIndex + v));
- uvBuff.push_back(TextureManager::getTile(texturesBuff.at(i)).getUV(v));
- tex.push_back(texture);
- }
-
- if (indicesBuff.at(i) == 0) {
- ind.push_back(ind.at(ind.size() - 2));
- ind.push_back(ind.at(ind.size() - 5));
- }
-
- vertIndex += (indicesBuff.at(i) == 0) ? 4 : 3;
- }
-
- assert((ind.size() % 3) == 0);
- assert(vert.size() == tex.size());
- assert(vert.size() == uvBuff.size());
-
- indicesBuff = std::move(ind);
- vertices.bufferData(vert);
- uvs.bufferData(uvBuff);
- texturesBuff = std::move(tex);
-
- std::vector<unsigned short> indCol;
- std::vector<glm::vec3> vertCol;
- std::vector<glm::vec3> cols;
-
- vertIndex = 0;
- for (int i = 0; i < indicesColorBuff.size(); i++) {
- for (int v = 0; v < ((indicesColorBuff.at(i) == 0) ? 4 : 3); v++) {
- indCol.push_back(vertCol.size());
- vertCol.push_back(verticesColorBuff.at(vertIndex + v));
- cols.push_back(colorsBuff.at(i));
- }
-
- if (indicesColorBuff.at(i) == 0) {
- indCol.push_back(indCol.at(indCol.size() - 2));
- indCol.push_back(indCol.at(indCol.size() - 5));
- }
-
- vertIndex += (indicesColorBuff.at(i) == 0) ? 4 : 3;
- }
-
- assert((indCol.size() % 3) == 0);
- assert(vertCol.size() == cols.size());
-
- indicesColor.bufferData(indCol);
- verticesColor.bufferData(vertCol);
- colors.bufferData(cols);
-
- verticesBuff.clear();
- indicesColorBuff.clear();
- verticesColorBuff.clear();
- colorsBuff.clear();
- }
-
- void Mesh::display(glm::mat4 MVP) {
- if (indicesBuff.size() > 0) {
- unsigned int indexStart = 0;
- unsigned int indexPos = 1;
- unsigned int texture = texturesBuff.at(indicesBuff.at(0));
-
- while ((indexStart != indexPos) && (indexPos < indicesBuff.size())) {
- while ((indexPos < indicesBuff.size())
- && (texturesBuff.at(indicesBuff.at(indexPos)) == texture)) {
- indexPos++;
- }
-
- std::vector<unsigned short> ind(indicesBuff.begin() + indexStart,
- indicesBuff.begin() + indexPos);
- indices.bufferData(ind);
- Shader::drawGL(vertices, uvs, indices, texture, MVP);
-
- if (indexPos < indicesBuff.size()) {
- indexStart = indexPos;
- indexPos += 1;
- texture = texturesBuff.at(indicesBuff.at(indexStart));
- }
- }
- }
-
- if (indicesColor.getSize() > 0)
- Shader::drawGL(verticesColor, colors, indicesColor, MVP);
- }
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