anunyin’s gists

anunyin / shortcut.cpp

Last active August 29, 2015 14:24

	#include "shortcut.h"
	#include <QKeyEvent>
	#include <QCoreApplication>
	#include <QDebug>

	Shortcut::Shortcut(QObject *parent)
	: QObject(parent)
	, m_keySequence()
	, m_keypressAlreadySend(false)
	{

anunyin / gist:7180565

Created October 27, 2013 11:16

Unity Rotation API

	void Entity::SetRotation(const glm::quat& rotation)
	{
	m_Rotation = rotation;
	// The const values are the world forward & world up respectively (in this case, a left-handed coordinate system).
	m_Forward = glm::rotate(m_Rotation, glm::vec3(0.0f, 0.0f, 1.0f));
	m_Up = glm::rotate(m_Rotation, glm::vec3(0.0f, 1.0f, 0.0f);
	}
	void Entity::SetEuler(const glm::vec3& rotation)
	{
	m_Rotation = glm::quat(rotation);

anunyin / gist:7152591

Created October 25, 2013 10:24

	// Overwrite the rotation value entirely w/ a new one.
	SetRotation(quaternion rot);
	SetRotationEuler(vec3 rot);
	SetRotationAxis(float angle, vec3 axis);

	// Apply an additional rotation to the currently existing one.
	Rotate(quaternion rot);
	RotateEuler(vec3 rot);
	RotateAxis(float angle, vec3 axis);

anunyin / gist:7152526

Created October 25, 2013 10:17

	vec3 object1(15.2f, 0.0f, -12.0f);
	vec3 object2(0.0f, 0.0f, 0.0f);

	// Set the forward vector to align with the vector between these two positions.
	// Effectively having the second object "look at" the first.
	object2.SetForward(object1 - object2);

anunyin / gist:6604014

Last active January 22, 2019 15:53

SDL 2: Changing Resolution at Runtime

	// windowHandle is a pointer to an SDL_Window object, acquired and stored from your original call to SDL_CreateWindow
	SDL_DestroyWindow(windowHandle);
	// You'll probably want to keep the window title and window position unchanged
	// by caching those values before you destroy the previous window.
	windowHandle = SDL_CreateWindow("Window Title", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, newWidth, newHeight, SDL_WINDOW_OPENGL);
	// windowContext is an SDL_GLContext object, acquired and stored from your initial SDL_GL_CreateContext call.
	SDL_GL_MakeCurrent(windowHandle, windowContext);


	// Again, keeping in mind that resolution and window size are separate things --

anunyin / gist:6603693

Created September 18, 2013 02:30

	// windowHandle is a pointer to an SDL_Window object, acquired and stored from your original call to SDL_CreateWindow
	SDL_DestroyWindow(windowHandle);
	// You'll probably want to keep the window title and window position unchanged
	// by caching those values before you destroy the previous window.
	windowHandle = SDL_CreateWindow("Window Title", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, newWidth, newHeight, SDL_WINDOW_OPENGL);
	// windowContext is an SDL_GLContext object, acquired and stored from your initial SDL_GL_CreateContext call.
	SDL_GL_MakeCurrent(windowHandle, windowContext);

	// Still needs to be called to update the rendered area.
	glViewport(newWidth, newHeight);

anunyin / gist:6603453

Created September 18, 2013 01:56

SDL2: Changing Resolution during Runtime

	SDL_DestroyWindow(windowHandle);
	windowHandle = SDL_CreateWindow("Window Title", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, newWidth, newHeight, SDL_WINDOW_OPENGL);
	SDL_GL_MakeCurrent(windowHandle, windowContext);

anunyin / gist:5145718

Created March 12, 2013 18:44

ShaderlessOpenGL

anunyin / gist:5145715

Created March 12, 2013 18:44

ShaderlessOpenGL

anunyin / OpenGL_NoProgram

Created March 12, 2013 18:33

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