From d24d5357b8d6618ebd509cf74ac08e1b60f1b413 Mon Sep 17 00:00:00 2001
From: End <end@3nd.io>
Date: Thu, 15 Sep 2016 17:23:02 +0200
Subject: [PATCH]  * WIP change

---
 .gitignore                   |  2 ++
 KKK/game/CMakeLists.txt      |  2 ++
 KKK/game/include/glclasses.h | 35 +++++++++++++++++++++++++++++++++
 KKK/game/include/renderer.h  | 12 ++++++++++++
 KKK/game/include/vector.h    | 38 ++++++++++++++++++++++++++++++++++++
 KKK/game/src/glclasses.cpp   | 38 ++++++++++++++++++++++++++++++++++++
 KKK/game/src/opengl.cpp      |  1 +
 KKK/game/src/renderer.cpp    |  5 +++++
 8 files changed, 133 insertions(+)
 create mode 100644 KKK/game/include/glclasses.h
 create mode 100644 KKK/game/include/renderer.h
 create mode 100644 KKK/game/src/glclasses.cpp
 create mode 100644 KKK/game/src/renderer.cpp

diff --git a/.gitignore b/.gitignore
index 9e5ec64..7f8a9a8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,5 @@ build*
 Makefile
 CMakeFiles
 cmake_install.cmake
+game/game
+tests/tests
diff --git a/KKK/game/CMakeLists.txt b/KKK/game/CMakeLists.txt
index b6b0151..9b2801a 100644
--- a/KKK/game/CMakeLists.txt
+++ b/KKK/game/CMakeLists.txt
@@ -8,12 +8,14 @@ find_package(X11 REQUIRED)
 set(GAME_SRC
     src/main.cpp
     src/opengl.cpp
+    src/glclasses.cpp
     src/config.cpp
     src/simulation.cpp
   )
 
 set(GAME_HEADERS
   include/opengl.h
+  include/glclasses.h
   include/vector.h
   include/config.h
   include/simulation.h
diff --git a/KKK/game/include/glclasses.h b/KKK/game/include/glclasses.h
new file mode 100644
index 0000000..c9c7483
--- /dev/null
+++ b/KKK/game/include/glclasses.h
@@ -0,0 +1,35 @@
+#pragma once
+
+#include <epoxy/gl.h>
+#include <epoxy/glx.h>
+
+template <GLenum T> class BufferObject {
+ private:
+  GLuint m_name;
+  GLvoid* m_mappointer;
+ protected:
+ public:
+  BufferObject();
+  ~BufferObject();
+  void bind();
+  void bind(GLuint index, GLintptr offset = 0, GLsizeiptr size = 0);
+  void fill(GLenum usage, GLsizei size = 0, GLvoid* data = NULL);
+  void subfill(GLintptr offset, GLsizei size, const GLvoid* data);
+  void map(GLenum access);
+  void unmap();
+};
+
+typedef BufferObject<GL_ARRAY_BUFFER> VBO;
+typedef BufferObject<GL_ELEMENT_ARRAY_BUFFER> IBO;
+
+class VAO {
+ private:
+  int[3] foo;
+
+ protected:
+ public:
+  VAO();
+  ~VAO();
+  bind();
+  fill(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride = 0, const GLvoid* pointer = NULL);
+}
diff --git a/KKK/game/include/renderer.h b/KKK/game/include/renderer.h
new file mode 100644
index 0000000..2606202
--- /dev/null
+++ b/KKK/game/include/renderer.h
@@ -0,0 +1,12 @@
+#pragma once
+
+#include <epoxy/gl.h>
+#include <epoxy/glx.h>
+
+class Renderer {
+ private:
+ protected:
+ public:
+  Renderer();
+  ~Renderer();
+};
diff --git a/KKK/game/include/vector.h b/KKK/game/include/vector.h
index 8bbe558..e9fd354 100644
--- a/KKK/game/include/vector.h
+++ b/KKK/game/include/vector.h
@@ -1,10 +1,20 @@
 #pragma once
 
+#include <math.h>
+
 struct Vec2d
 {
   double x;
   double y;
 
+  double length() {
+    return sqrt(x*x + y*y);
+  }
+  double distance(Vec2d other) {
+    Vec2d tmp = (*this - other);
+    return tmp.length();
+  }
+
   Vec2d & operator+=(const Vec2d& rhs) {
     x+=rhs.x;
     y+=rhs.y;
@@ -49,3 +59,31 @@ struct Vec2d
     return result;
   }
 };
+
+struct Mat4d {
+  std::array<double, 16> data;
+
+  const Mat4d operator*(const Mat4d& rhs) const {
+    Mat4d result;
+    result[0] = result[0]*rhs[0] + result[1]*result[5] + result[2]*result[9] + result[3]*result[13];
+    result[1] = result[0]*rhs[1] + result[1]*result[6] + result[2]*result[10] + result[3]*result[14];
+    result[2] = result[0]*rhs[2] + result[1]*result[7] + result[2]*result[11] + result[3]*result[15];
+    result[3] = result[0]*rhs[3] + result[1]*result[8] + result[2]*result[12] + result[3]*result[16];
+
+    result[4] = result[4]*rhs[0] + result[5]*result[5] + result[6]*result[9] + result[7]*result[13];
+    result[5] = result[4]*rhs[1] + result[5]*result[6] + result[6]*result[10] + result[7]*result[14];
+    result[6] = result[4]*rhs[2] + result[5]*result[7] + result[6]*result[11] + result[7]*result[15];
+    result[7] = result[4]*rhs[3] + result[5]*result[8] + result[6]*result[12] + result[7]*result[16];
+
+    result[8] = result[8]*rhs[0] + result[9]*result[5] + result[10]*result[9] + result[11]*result[13];
+    result[9] = result[8]*rhs[1] + result[9]*result[6] + result[10]*result[10] + result[11]*result[14];
+    result[10] = result[8]*rhs[2] + result[9]*result[7] + result[10]*result[11] + result[11]*result[15];
+    result[11] = result[8]*rhs[3] + result[9]*result[8] + result[10]*result[12] + result[11]*result[16];
+
+    result[12] = result[12]*rhs[0] + result[13]*result[5] + result[14]*result[9] + result[15]*result[13];
+    result[13] = result[12]*rhs[1] + result[13]*result[6] + result[14]*result[10] + result[15]*result[14];
+    result[14] = result[12]*rhs[2] + result[13]*result[7] + result[14]*result[11] + result[15]*result[15];
+    result[15] = result[12]*rhs[3] + result[13]*result[8] + result[14]*result[12] + result[15]*result[16];
+    return result;
+  }
+}
diff --git a/KKK/game/src/glclasses.cpp b/KKK/game/src/glclasses.cpp
new file mode 100644
index 0000000..18e2e8f
--- /dev/null
+++ b/KKK/game/src/glclasses.cpp
@@ -0,0 +1,38 @@
+#include <include/glclasses.h>
+
+#define TBufferObject_(pre, post) template <GLenum T> pre BufferObject<T>::post
+#define TBufferObject(...) TBufferObject_(__VA_ARGS__)
+
+TBufferObject(, BufferObject)() {
+  glGenBuffers(1, &m_name);
+}
+
+TBufferObject(, ~BufferObject)() {
+  glDeleteBuffers(1, m_name);
+}
+
+TBufferObject(void, bind)() {
+  glBindBuffer(T, m_name);
+}
+
+TBufferObject(void, bind)(GLuint index, GLintptr offset, GLsizeiptr size) {
+  //todo  
+}
+
+TBufferObject(void, fill)(GLenum usage, GLsizei size, GLvoid* data) {
+  glBufferData(T, size, data, usage);
+}
+
+TBufferObject(void, subfill)(GLintptr offset, GLsizei size, const GLvoid* data) {
+  glBufferSubData(T, offset, size, data); 
+}
+
+TBufferObject(void, map)(GLenum access) {
+  //todo 
+}
+
+TBufferObject(void, unmap)() {
+  //todo 
+}
+
+
diff --git a/KKK/game/src/opengl.cpp b/KKK/game/src/opengl.cpp
index 5c8e1bd..a364e87 100644
--- a/KKK/game/src/opengl.cpp
+++ b/KKK/game/src/opengl.cpp
@@ -70,6 +70,7 @@ endofthejedi::GLWindow::GLWindow(unsigned int width, unsigned int height)
 endofthejedi::GLWindow::~GLWindow() {
   glXMakeCurrent(m_display, None, NULL);
   glXDestroyContext(m_display, m_glcontext);
+  XFree(m_visualinfo);
   XDestroyWindow(m_display, m_window);
   XCloseDisplay(m_display);
 }
diff --git a/KKK/game/src/renderer.cpp b/KKK/game/src/renderer.cpp
new file mode 100644
index 0000000..b9dbfc7
--- /dev/null
+++ b/KKK/game/src/renderer.cpp
@@ -0,0 +1,5 @@
+#include <include/renderer.h>
+
+Renderer::Renderer() {
+  
+}