From 6ee3c2d93441f1a5b212ca6d27a36a825e085883 Mon Sep 17 00:00:00 2001
From: StratiX0 <jerome.hussenet@sfr.fr>
Date: Mon, 25 Mar 2024 16:40:12 +0100
Subject: [PATCH] 3d

---
 enginecustom/applicationclass.cpp         |   7 +-
 enginecustom/cube.mtl                     |  22 ++
 enginecustom/enginecustom.vcxproj         |  11 +
 enginecustom/modelclass.cpp               |  71 +++++-
 enginecustom/modelclass.h                 |  24 +-
 enginecustom/objects/New Bitmap Image.mtl |   0
 enginecustom/objects/cube.txt             |  40 ++++
 enginecustom/objects/cylinder.mtl         |   2 +
 enginecustom/objects/cylinder_obj.fbx     | Bin 0 -> 13276 bytes
 enginecustom/output.txt                   | 262 ++++++++++++++++++++++
 10 files changed, 434 insertions(+), 5 deletions(-)
 create mode 100644 enginecustom/cube.mtl
 create mode 100644 enginecustom/objects/New Bitmap Image.mtl
 create mode 100644 enginecustom/objects/cube.txt
 create mode 100644 enginecustom/objects/cylinder.mtl
 create mode 100644 enginecustom/objects/cylinder_obj.fbx
 create mode 100644 enginecustom/output.txt

diff --git a/enginecustom/applicationclass.cpp b/enginecustom/applicationclass.cpp
index 3084822..ff5e4d2 100644
--- a/enginecustom/applicationclass.cpp
+++ b/enginecustom/applicationclass.cpp
@@ -23,6 +23,7 @@ ApplicationClass::~ApplicationClass()
 bool ApplicationClass::Initialize(int screenWidth, int screenHeight, HWND hwnd)
 {
 	char modelFilename[128];
+	char outputModelFilename[128];
 	char textureFilename[128];
 	bool result;
 
@@ -54,7 +55,9 @@ bool ApplicationClass::Initialize(int screenWidth, int screenHeight, HWND hwnd)
 	m_Camera->SetRotation(0.0f, 0.0f, 10.0f);
 
 	// Set the file name of the model.
-	strcpy_s(modelFilename, "cube.txt");
+	strcpy_s(modelFilename, "cube.obj");
+
+	strcpy_s(outputModelFilename, "output.txt");
 
 	// Set the name of the texture file that we will be loading.
 	strcpy_s(textureFilename, "stone01.tga");
@@ -62,7 +65,7 @@ bool ApplicationClass::Initialize(int screenWidth, int screenHeight, HWND hwnd)
 	// Create and initialize the model object.
 	m_Model = new ModelClass;
 
-	result = m_Model->Initialize(m_Direct3D->GetDevice(), m_Direct3D->GetDeviceContext(), modelFilename, textureFilename);
+	result = m_Model->Initialize(m_Direct3D->GetDevice(), m_Direct3D->GetDeviceContext(), modelFilename, outputModelFilename, textureFilename);
 	if (!result)
 	{
 		MessageBox(hwnd, L"Could not initialize the model object.", L"Error", MB_OK);
diff --git a/enginecustom/cube.mtl b/enginecustom/cube.mtl
new file mode 100644
index 0000000..d189f87
--- /dev/null
+++ b/enginecustom/cube.mtl
@@ -0,0 +1,22 @@
+# Blender MTL File: 'None'
+# Material Count: 2
+
+newmtl Material
+Ns 323.999994
+Ka 1.000000 1.000000 1.000000
+Kd 0.800000 0.800000 0.800000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.450000
+d 1.000000
+illum 2
+
+newmtl Material.001
+Ns 225.000000
+Ka 1.000000 1.000000 1.000000
+Kd 0.000000 0.002280 0.800000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.450000
+d 1.000000
+illum 2
diff --git a/enginecustom/enginecustom.vcxproj b/enginecustom/enginecustom.vcxproj
index aa0bfa9..369e28f 100644
--- a/enginecustom/enginecustom.vcxproj
+++ b/enginecustom/enginecustom.vcxproj
@@ -45,6 +45,7 @@
     <ClInclude Include="textureclass.h" />
   </ItemGroup>
   <ItemGroup>
+    <None Include="cube.mtl" />
     <None Include="light.ps" />
     <None Include="light.vs" />
     <None Include="packages.config" />
@@ -73,6 +74,16 @@
   <ItemGroup>
     <Text Include="cube.txt" />
   </ItemGroup>
+  <ItemGroup>
+    <None Include="cylinder.obj">
+      <FileType>Document</FileType>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="cube.obj">
+      <FileType>Document</FileType>
+    </None>
+  </ItemGroup>
   <PropertyGroup Label="Globals">
     <VCProjectVersion>17.0</VCProjectVersion>
     <Keyword>Win32Proj</Keyword>
diff --git a/enginecustom/modelclass.cpp b/enginecustom/modelclass.cpp
index 25846f3..3debce5 100644
--- a/enginecustom/modelclass.cpp
+++ b/enginecustom/modelclass.cpp
@@ -19,12 +19,14 @@ ModelClass::~ModelClass()
 {
 }
 
-bool ModelClass::Initialize(ID3D11Device* device, ID3D11DeviceContext* deviceContext, char* modelFilename, char* textureFilename)
+bool ModelClass::Initialize(ID3D11Device* device, ID3D11DeviceContext* deviceContext, char* modelFilename, char* outputModelFilename, char* textureFilename)
 {
 	bool result;
 
+	ConvertObjToTxt(modelFilename, outputModelFilename);
+
 	// Load in the model data.
-	result = LoadModel(modelFilename);
+	result = LoadModel(outputModelFilename);
 	if (!result)
 	{
 		return false;
@@ -310,6 +312,71 @@ bool ModelClass::LoadModel(char* filename)
 	return true;
 }
 
+void ModelClass::ConvertObjToTxt(const std::string& inputFilename, const std::string& outputFilename) {
+	std::ifstream inputFile(inputFilename);
+	std::ofstream outputFile(outputFilename);
+
+	std::string line;
+	std::vector<XMFLOAT3> positions;
+	std::vector<XMFLOAT2> texCoords;
+	std::vector<XMFLOAT3> normals;
+	std::vector<ModelType> vertices;
+
+	while (std::getline(inputFile, line)) {
+		std::istringstream iss(line);
+		std::string prefix;
+
+		if (!(iss >> prefix)) { break; }
+
+		if (prefix == "v") {
+			XMFLOAT3 pos;
+			if (!(iss >> pos.x >> pos.y >> pos.z)) { break; }
+			positions.push_back(pos);
+		}
+		else if (prefix == "vt") {
+			XMFLOAT2 texCoord;
+			if (!(iss >> texCoord.x >> texCoord.y)) { break; }
+			texCoords.push_back(texCoord);
+		}
+		else if (prefix == "vn") {
+			XMFLOAT3 normal;
+			if (!(iss >> normal.x >> normal.y >> normal.z)) { break; }
+			normals.push_back(normal);
+		}
+		else if (prefix == "f") {
+			ModelType v;
+			char slash; // To skip slashes
+			int posIndex, texIndex, normIndex;
+
+			for (int i = 0; i < 3; ++i) { // For each vertex of the face
+				if (!(iss >> posIndex >> slash >> texIndex >> slash >> normIndex)) { break; }
+
+				// .obj indices start at 1, so subtract 1 to get 0-based indices
+				v.x = positions[posIndex - 1].x;
+				v.y = positions[posIndex - 1].y;
+				v.z = positions[posIndex - 1].z;
+				v.tu = texCoords[texIndex - 1].x;
+				v.tv = texCoords[texIndex - 1].y;
+				v.nx = normals[normIndex - 1].x;
+				v.ny = normals[normIndex - 1].y;
+				v.nz = normals[normIndex - 1].z;
+
+				vertices.push_back(v);
+			}
+		}
+	}
+
+	// Write to output file in the desired format
+	outputFile << "Vertex Count: " << vertices.size() << "\n\n";
+	outputFile << "Data:\n\n";
+
+	for (const ModelType& v : vertices) {
+		outputFile << v.x << " " << v.y << " " << v.z << " ";
+		outputFile << v.tu << " " << v.tv << " ";
+		outputFile << v.nx << " " << v.ny << " " << v.nz << "\n";
+	}
+}
+
 void ModelClass::ReleaseModel()
 {
 	if (m_model)
diff --git a/enginecustom/modelclass.h b/enginecustom/modelclass.h
index 9ffdcda..a2578e0 100644
--- a/enginecustom/modelclass.h
+++ b/enginecustom/modelclass.h
@@ -8,6 +8,9 @@
 #include <d3d11.h>
 #include <directxmath.h>
 #include <fstream>
+#include <sstream>
+#include <vector>
+#include <string>
 using namespace DirectX;
 using namespace std;
 
@@ -38,13 +41,30 @@ private:
 		float nx, ny, nz;
 	};
 
+	struct Vertex {
+		float x, y, z;
+	};
+
+	struct Texture {
+		float u, v;
+	};
+
+	struct Normal {
+		float nx, ny, nz;
+	};
+
+	struct Face {
+		int v1, v2, v3;
+		int t1, t2, t3;
+		int n1, n2, n3;
+	};
 
 public:
 	ModelClass();
 	ModelClass(const ModelClass&);
 	~ModelClass();
 
-	bool Initialize(ID3D11Device*, ID3D11DeviceContext*, char*, char*);
+	bool Initialize(ID3D11Device*, ID3D11DeviceContext*, char*, char*, char*);
 	void Shutdown();
 	void Render(ID3D11DeviceContext*);
 
@@ -62,6 +82,8 @@ private:
 	bool LoadModel(char*);
 	void ReleaseModel();
 
+	void ConvertObjToTxt(const std::string&, const std::string&);
+
 private:
 	ID3D11Buffer* m_vertexBuffer, * m_indexBuffer;
 	int m_vertexCount, m_indexCount;
diff --git a/enginecustom/objects/New Bitmap Image.mtl b/enginecustom/objects/New Bitmap Image.mtl
new file mode 100644
index 0000000..e69de29
diff --git a/enginecustom/objects/cube.txt b/enginecustom/objects/cube.txt
new file mode 100644
index 0000000..00b34ba
--- /dev/null
+++ b/enginecustom/objects/cube.txt
@@ -0,0 +1,40 @@
+Vertex Count: 36
+
+Data:
+
+-1.0  1.0 -1.0 0.0 0.0  0.0  0.0 -1.0
+ 1.0  1.0 -1.0 1.0 0.0  0.0  0.0 -1.0
+-1.0 -1.0 -1.0 0.0 1.0  0.0  0.0 -1.0
+-1.0 -1.0 -1.0 0.0 1.0  0.0  0.0 -1.0
+ 1.0  1.0 -1.0 1.0 0.0  0.0  0.0 -1.0
+ 1.0 -1.0 -1.0 1.0 1.0  0.0  0.0 -1.0
+ 1.0  1.0 -1.0 0.0 0.0  1.0  0.0  0.0
+ 1.0  1.0  1.0 1.0 0.0  1.0  0.0  0.0
+ 1.0 -1.0 -1.0 0.0 1.0  1.0  0.0  0.0
+ 1.0 -1.0 -1.0 0.0 1.0  1.0  0.0  0.0
+ 1.0  1.0  1.0 1.0 0.0  1.0  0.0  0.0
+ 1.0 -1.0  1.0 1.0 1.0  1.0  0.0  0.0
+ 1.0  1.0  1.0 0.0 0.0  0.0  0.0  1.0
+-1.0  1.0  1.0 1.0 0.0  0.0  0.0  1.0
+ 1.0 -1.0  1.0 0.0 1.0  0.0  0.0  1.0
+ 1.0 -1.0  1.0 0.0 1.0  0.0  0.0  1.0
+-1.0  1.0  1.0 1.0 0.0  0.0  0.0  1.0
+-1.0 -1.0  1.0 1.0 1.0  0.0  0.0  1.0
+-1.0  1.0  1.0 0.0 0.0 -1.0  0.0  0.0
+-1.0  1.0 -1.0 1.0 0.0 -1.0  0.0  0.0
+-1.0 -1.0  1.0 0.0 1.0 -1.0  0.0  0.0
+-1.0 -1.0  1.0 0.0 1.0 -1.0  0.0  0.0
+-1.0  1.0 -1.0 1.0 0.0 -1.0  0.0  0.0
+-1.0 -1.0 -1.0 1.0 1.0 -1.0  0.0  0.0
+-1.0  1.0  1.0 0.0 0.0  0.0  1.0  0.0
+ 1.0  1.0  1.0 1.0 0.0  0.0  1.0  0.0
+-1.0  1.0 -1.0 0.0 1.0  0.0  1.0  0.0
+-1.0  1.0 -1.0 0.0 1.0  0.0  1.0  0.0
+ 1.0  1.0  1.0 1.0 0.0  0.0  1.0  0.0
+ 1.0  1.0 -1.0 1.0 1.0  0.0  1.0  0.0
+-1.0 -1.0 -1.0 0.0 0.0  0.0 -1.0  0.0
+ 1.0 -1.0 -1.0 1.0 0.0  0.0 -1.0  0.0
+-1.0 -1.0  1.0 0.0 1.0  0.0 -1.0  0.0
+-1.0 -1.0  1.0 0.0 1.0  0.0 -1.0  0.0
+ 1.0 -1.0 -1.0 1.0 0.0  0.0 -1.0  0.0
+ 1.0 -1.0  1.0 1.0 1.0  0.0 -1.0  0.0
\ No newline at end of file
diff --git a/enginecustom/objects/cylinder.mtl b/enginecustom/objects/cylinder.mtl
new file mode 100644
index 0000000..6d43325
--- /dev/null
+++ b/enginecustom/objects/cylinder.mtl
@@ -0,0 +1,2 @@
+# Blender 4.0.1 MTL File: 'None'
+# www.blender.org
diff --git a/enginecustom/objects/cylinder_obj.fbx b/enginecustom/objects/cylinder_obj.fbx
new file mode 100644
index 0000000000000000000000000000000000000000..70e012179592cafdbb91328a670d664432092d8f
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