#include <iostream>
#include <conio.h>
#include <stdio.h>
#include <string>
#include <sstream>
#include <math.h>
#include <GL/glew.h>
#include <GL/freeglut.h>
#include <GL/gl.h>
#include "Player.h"
#include "Bullet.h"
#include "DrawBresenhamLine.h"
#include "MainConst.h"

using namespace std;

Player playerObj(50, 50, 0);
Bullet bulletObj(playerObj.x, playerObj.y, playerObj.angle);

string buff;
char array[100];

void KeyboardMove(int key, int _x, int _y){
    switch (key){
        case GLUT_KEY_LEFT:
            //playerObj.x--;
            playerObj.angle += 5;
            break;
        case GLUT_KEY_RIGHT:
            //playerObj.x++;
            playerObj.angle -= 5;
            break;
        case GLUT_KEY_DOWN:
            playerObj.x = playerObj.x + 2 * sin(playerObj.angle * M_PI / 180);
            playerObj.y = playerObj.y - 2 * cos(playerObj.angle * M_PI / 180);
            break;
        case GLUT_KEY_UP:
            playerObj.x = playerObj.x - 2 * sin(playerObj.angle * M_PI / 180);
            playerObj.y = playerObj.y + 2 * cos(playerObj.angle * M_PI / 180);
            break;
        case GLUT_KEY_INSERT:
            bulletObj.drawBullet(playerObj.x, playerObj.y);
            break;
    }
}

void output(GLfloat x, GLfloat y, string text){
    glPushMatrix();
    glTranslatef(x, y, 0);
    glScalef(0.1, 0.1, 0);
    for(int i = 0; i < text.length(); i++){
        glutStrokeCharacter(GLUT_STROKE_ROMAN, text[i]);
    }
    glPopMatrix();
}

string LDToStr(double one){
    std::stringstream ss;
    ss << one;
    return ss.str();
}

void Display() {
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    playerObj.drawPlayer(playerObj.x, playerObj.y, playerObj.angle);

    buff = "x: " + LDToStr(playerObj.x) + "; y: " + LDToStr(playerObj.y) + "; a: " + LDToStr((double)playerObj.angle);
    buff += " sin: " + LDToStr((double)sin(playerObj.angle * 3.14 / 180)) + " cos: " + LDToStr((double)cos(playerObj.angle * 3.14 / 180));
    output(15, WIDTH_D-15, buff);

    glutSwapBuffers();
}

void Update(void) {
    glutPostRedisplay();
}

void Initialize() {
    glClearColor(0, 0, 0, 1.0);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    glOrtho(0.0, WIDTH_D, 0.0, HEIGHT_D, -5.0, 5.0);
    glutIdleFunc(Update);
}

int main(int argc, char** argv) {
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA);
    glutInitWindowSize(400, 400);
    glutCreateWindow("Window");
    Initialize();
    glutDisplayFunc(Display);
    glutSpecialFunc(KeyboardMove);
    glutMainLoop();

    getch();

    return 0;
}