#include <windows.h>
#include <GLFW/glfw3.h>
#include <stdlib.h>
#include <stdio.h>
#include <iostream>
#include <math.h>
#include <GL/glu.h>
#include <vector>
void print(float[]);
using namespace std;
class level{
public:
	vector<double> point;
	vector<vector<double>> points;
	level(double h){
		point.reserve(3);
		points.reserve(100);
		double x, y,phi,r1 = 4*sqrt(h),r2 = 2 * sqrt(h);
		phi = 0;
		while (phi < 6.2){
			x = r1*cos(phi);
			y = r2*sin(phi);
			point.emplace_back(x);
			point.emplace_back(y);
			point.emplace_back(h);
			points.emplace_back(point);
		}
	}
};
double xpos, ypos;
// 24 вариант

static void error_callback(int error, const char* description)
{
	fputs(description, stderr);
}
static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
	if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
		glfwSetWindowShouldClose(window, GL_TRUE);
}
void make3per() {
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	double M[] = {
		1 , 0 , 0 , 0 ,
		0 , 1 , 0 , 0 ,
		0 , 0 , -1.5 , 0 ,
		0 , 0 , -0.9, 3
	};
	double phi = -0.2;
	double M1[] = {
		cos(-phi) , 0 , sin(-phi) , 0,
		0 , 1 , 0 , 0,
		-sin(-phi), 0 , cos(-phi) , 0,
		0 , 0 , 0, 1
	};

	double M3[] = {
		1 , 0 , 0 , 0,
		0 , cos(phi) , sin(phi) , 0,
		0 , -sin(phi) , cos(phi) , 0,
		0 , 0 , 0, 1
	};
	glLoadMatrixd(M);
	glMultMatrixd(M1);
    glMultMatrixd(M3);
}



int main(void)
{
	double xCenter = 0.f, yCenter = 0.f, zCenter = 0.0f, scale = 1.f;
	int   rAngle = 0, dAngle = 0;
	double h = 0;

	//грани
	float front[] = { 0.f ,1.f ,1.f,
		0.f,0.f,0.f,
		0.5f,0.f,0.f,
		0.5f,0.5f,0.f,
		0.f,0.5f,0.f
	};
	float back[] = { 0.f ,0.5f ,1.f,
		0.f,0.f,0.5f,
		0.5f,0.f,0.5f,
		0.5f,0.5f,0.5f,
		0.f,0.5f,0.5f
	};
	float down[] = { 1.f ,0.5f, 0.f,
		0.f,0.f,0.f,
		0.5f,0.f,0.f,
		0.5f,0.f,0.5f,
		0.f,0.f,0.5f
	};
	float top[] = { 1.f  ,1.f  ,0.f,
		0.f,0.5f,0.f,
		0.5f,0.5f,0.f,
		0.5f,0.5f,0.5f,
		0.f,0.5f,0.5f
	};
	float lleft[] = { 0.f,1.f,0.5f,
		0.f,0.f,0.f,
		0.f,0.f,0.5f,
		0.f,0.5f,0.5f,
		0.f,0.5f,0.f
	};
	float rright[] = { 0.5f,1.f,0.f,
		0.5f,0.f,0.f,
		0.5f,0.f,0.5f,
		0.5f,0.5f,0.5f,
		0.5f,0.5f,0.f
	};
	vector<level> l;
	for (int i = 0; i < 30; i++){
		level a(h);
		l[i] = a;
		h += 0.1;
	}
	GLFWwindow* window;
	glfwSetErrorCallback(error_callback);
	if (!glfwInit()) {
		exit(EXIT_FAILURE);
	}
	window = glfwCreateWindow(800, 800, "Laba2", NULL, NULL);
	if (!window) {
		glfwTerminate();
	}
	glfwMakeContextCurrent(window);
	glfwSetKeyCallback(window, key_callback);

	int width, height;
	double  ratio;
	make3per();
	glfwGetFramebufferSize(window, &width, &height);
	ratio = width / height;
	glViewport(0, 0, width, height);
	glMatrixMode(GL_MODELVIEW_MATRIX);
	glEnable(GL_DEPTH_TEST);
	while (!glfwWindowShouldClose(window))
	{
		glfwGetCursorPos(window, &xpos, &ypos);
		glClearColor(0, 0, 0, 0);
		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
		/*for (int i = 0; i < 30; i++) {
			level a = l[i];
			for(int j = 0 ; j < l[i].points.size() - 1 ; j++){
				glBegin(GL_LINES);
				vector<double> p1 = l[i].points[j];
				vector<double> p2 = l[i].points[j + 1];
				p1.reserve(3);
				p2.reserve(3);
				glColor3d(1, 0, 0);
				glVertex3d(p1[0], p1[1], p1[2]);
				glVertex3d(p2[0], p2[1], p2[2]);
				glEnd();
			}

		}*/
		//отрисовка граней
		/*print(back);
		print(front);
		print(lleft);
		print(rright);
		print(down);
		print(top);*/
		glfwSwapBuffers(window);
		glfwPollEvents();
	}
	glfwTerminate();
	exit(EXIT_SUCCESS);
}

void print(float plane[]) {
	glBegin(GL_QUADS);
	glVertex3d(plane[3], plane[4], plane[5]);
	glColor3f(plane[0] + xpos / 300, plane[1] - xpos / 200, plane[2] + ypos / 900);
	glVertex3d(plane[6], plane[7], plane[8]);
	glColor3f(plane[0] - xpos / 900, plane[1] - xpos / 700, plane[2] - ypos / 900);
	glVertex3d(plane[9], plane[10], plane[11]);
	glColor3f(plane[0] + xpos / 900, plane[1] + xpos / 300, plane[2] - ypos / 600);
	glVertex3d(plane[12], plane[13], plane[14]);
	glColor3f(plane[0] - xpos / 800, plane[1] + xpos / 900, plane[2] + ypos / 900);
	glEnd();
}