Exploded line rendering with rotation transform.

KoreLineExample.cpp

#include "pch.h"

#include <Kore/Graphics4/Graphics.h>
#include <Kore/Graphics2/Graphics.h>
#include <Kore/System.h>

#include <limits>

using namespace Kore;

namespace {
	Graphics2::Graphics2* g2;

	void update() {

		Graphics4::begin();

		g2->begin();
		g2->clear(0xff333333);

		float a = Kore::pi * 0.25;

		g2->transformation = mat3::Translation(320, 240) * mat3::RotationZ(a) * mat3::Translation(-320, -240);
		g2->setColor(0xff00ff00);
		g2->drawLine(50.0, 240, 590, 240, 5.0);
		// g2->drawRect(280, 200, 80, 80, 5.0);
		g2->transformation = mat3::Identity();

		g2->setColor(0xffffffff);
		g2->end();

		Graphics4::end();
		Graphics4::swapBuffers();
	}
}

int kore(int argc, char** argv) {
	System::init("RotatedLineExample", 640, 480);
	System::setCallback(update);

	g2 = new Graphics2::Graphics2(640, 480);

	System::start();

	return 0;
}