#include <opencv/cv.h>
#include <opencv/highgui.h>
#include <math.h>

void Draw(int x, int y, Mat image){
	image = Mat(600, 800, CV_8UC1, Scalar(0));
	circle(image, cvPoint(x, y), 32.0, cvScalar(0, 0, 255), CV_FILLED, 8);
	imshow("Curve 2 - line", image);

}

void Move(int x, int y, Mat image){
	for (int i = x; i < 800; i = i + 4)
	{
		Draw(i, y, image);
		waitKey(1);

	}


}
using namespace cv;
int main(){


	/*cvNamedWindow("window", CV_WINDOW_AUTOSIZE);
	int y, x;
	x = 100;
	y = 500;
	IplImage* image =  cvCreateImage(cvSize(800, 600), IPL_DEPTH_8U, 3);
	while (true)
	{
		int key = cvWaitKey(0);
 		if (key == 'w'){
			y -= 10;


		}
		else if (key == 's'){
			y += 10;

		}
		else if (key == 'a'){
			x -= 10;


		}
		else if (key == 'd'){
			x += 10;


		}
		else if (key == 27){
			cvDestroyWindow("1");
			return 0;


		}
		else if (key == 32){

			Move(x,y,image);

		}
		Draw(x, y, image);



	}*/


	Mat img(600, 800, CV_8UC1, Scalar(0));
	Mat img2 = img.clone();
	float a, b, c;
	a = b = c = 0;
	a = 0.01;
	b = 2.0;
	float start_point_x = 0;
	float end_point_x = 800;
	float przesuniecie_x = 400;
	float przesuniecie_y = 200;
	float wypłaszczenie = 1.0;
	vector<Point2f> curvePoints;

	while (true)
	{
		int key = cvWaitKey(0);
		if (key == 'w'){
			przesuniecie_y -= 10;


		}
		else if (key == 's'){
			przesuniecie_y += 10;

		}
		else if (key == 'a'){
			przesuniecie_x -= 10;


		}else if (key == 'd'){
			przesuniecie_x += 10;

		}
		else if (key == 'c'){
			c += 2.0;


		}
		else if (key == '1'){
			wypłaszczenie -= 0.1;

		}
		else if (key == '2'){
			wypłaszczenie += 0.1;


		}

		else if (key == 32){

			Move(x, y, img2);

		}


		img2 = Mat(600, 800, CV_8UC1, Scalar(0));

		//After this the Mat can be re-assigned another value for example:
		//img2 = Mat::zeros(600, 800, CV_8UC1);

		curvePoints.clear();
		//Define the curve through equation. In this example, a simple parabola
		for (float x = start_point_x; x <= end_point_x; x += 1){
			//float y = ((0.0425*x*x) + a) -( (4.25*x) + b) + (258 + c);

			float y = ((a*pow(x - przesuniecie_x, 2)) + przesuniecie_y)/wypłaszczenie;
			Point2f new_point = Point2f( x,  y);                  //resized to better visualize
			curvePoints.push_back(new_point);                       //add point to vector/list
		}

		//Option 1: use polylines
		//Mat curve(curvePoints, true);
		//curve.convertTo(curve, CV_32S); //adapt type for polylines
		//polylines(img, curve, false, Scalar(255), 2, CV_AA);

		//Option 2: use line with each pair of consecutives points
		for (int i = 0; i < curvePoints.size() - 1; i++){
			line(img2, curvePoints[i], curvePoints[i + 1], Scalar(255), 2, CV_AA);

		}

		/*imshow("Curve 1 - polylines", img)*/;
		imshow("Curve 2 - line", img2);
		waitKey(1);
	}




}