From a7c9aeee1e68235af406e30654e4b2e5f0f7fda2 Mon Sep 17 00:00:00 2001
From: MatejaMaric <matejamaricz@gmail.com>
Date: Tue, 9 Jul 2019 00:26:42 +0200
Subject: First commit

---
 source/ObjModel.cpp | 93 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 source/ObjModel.cpp

(limited to 'source/ObjModel.cpp')

diff --git a/source/ObjModel.cpp b/source/ObjModel.cpp
new file mode 100644
index 0000000..f23cfc3
--- /dev/null
+++ b/source/ObjModel.cpp
@@ -0,0 +1,93 @@
+#include "ObjModel.h"
+
+
+
+ObjModel::ObjModel() {}
+
+ObjModel::ObjModel(std::string fileName)
+{
+	int hlp = 0;
+	std::ifstream f(fileName);
+	std::string s0;
+	while (getline(f, s0)) {
+		std::stringstream ss0(s0);
+		std::string s1 = "";
+		ss0 >> s1;
+		if (s1.compare(0, s1.length(), "v") == 0) {
+			ss0 >> s1;
+			float x = std::stof(s1);
+			ss0 >> s1;
+			float y = std::stof(s1);
+			ss0 >> s1;
+			float z = std::stof(s1);
+			Vertice t(x, y, z, 1.0f, 0.0f, 0.0f);
+			vertices.push_back(t);
+		}
+		else if (s1.compare(0, s1.length(), "vn") == 0) {
+			ss0 >> s1;
+			float x = std::stof(s1);
+			ss0 >> s1;
+			float y = std::stof(s1);
+			ss0 >> s1;
+			float z = std::stof(s1);
+			Vector4f v(x, y, z, 0.0f);
+			normals.push_back(v);
+		}
+		else if (s1.compare(0, s1.length(), "vt") == 0) {
+			ss0 >> s1;
+			float u = std::stof(s1);
+			ss0 >> s1;
+			float v = std::stof(s1);
+			Texture_Coordinates kt;
+			kt.u = u;	kt.v = v;
+			uvcoo.push_back(kt);
+		}
+		else if (s1.compare(0, s1.length(), "f") == 0) {
+			Triangle pt;
+			for (int i = 0; i < 3; i++) {
+				ss0 >> s1;
+				std::stringstream ss1(s1);
+				std::string s2;
+				for (int j = 0; std::getline(ss1, s2, '/'); j++) {
+					pt.p[i][j] = std::stoi(s2);
+				}
+			}
+			faces.push_back(pt);
+		}
+	}
+
+}
+
+ObjModel::ObjModel(const ObjModel& a) 
+{
+	vertices = a.vertices;
+	uvcoo = a.uvcoo;
+	normals = a.normals;
+	faces = a.faces;
+}
+
+ObjModel ObjModel::multiplyMatrix(Matrix4f& a) 
+{
+	ObjModel hlp = *this;
+	for (int i = 0; i < vertices.size(); i++)
+	{
+		hlp.vertices[i] = hlp.vertices[i].multiplyMatrix(a);
+	}
+	return hlp;
+}
+
+void ObjModel::divideW() 
+{
+	for (int i = 0; i < vertices.size(); i++)
+	{
+		vertices[i] = vertices[i].divideW();
+	}
+}
+
+void ObjModel::screenspace(int width, int height)
+{
+	for (int i = 0; i < vertices.size(); i++)
+	{
+		vertices[i].screenspace(width, height);
+	}
+}
-- 
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