#include <math.h>
#include "glut.h"

#include "CGameHandler.h"
#include "CModel.h"
#include "CCube.h"
#include "CPolygon.h"

//defintion of the global variables:
CCube cube;
int jumpincrease;//משתנה עזר הבודק אם עברו 200 פריימים
double ro, cubespeedx;//ro- cube rotation speed, cubespeed - the amount of distance the cube makes in a single frame.
bool r, cs, csy, csyf;//csy/csyf making sure that the cube goes up and down, r/cs making sure the cube will/not rotate/move.


extern void renderBitmapString(float x, float y, void *font, char *string);
extern void renderVerticalBitmapString(float x, float y, int bitmapHeight, void *font, char *string);

void CGameHandler::StartOfGame()
{
	//variables for game handling
	font = def_font = (int)GLUT_BITMAP_HELVETICA_18;
	ChangeBackgroundColors(0.5, 0.75, 0.25);

	//settings of the objects:
	cube.MoveModel(-0.5, -3, -10);
	r = true;
	cs = true;
	csy = false;
	csyf = false;
	ro = 0.5;
	cubespeedx = 0;
	jumpincrease = 0;
}

//on each frame:
void CGameHandler::DrawScene()
{
	cube.DrawModel();
}

void CGameHandler::LogicPart()
{
	//שליטה על סיבוב הקובייה
	if (r)
		cube.RotateSelfModel(Y_AXIS, ro);
	//שליטה על תזוזת הקובייה
	if (cs)
		cube.MoveModel(cubespeedx, 0, 0);

	//תנאים לקוביה היוצאת מן המסך
	if (cube.GetModelCenter().GetCoordinate(X_AXIS) >= 6.5)
		cube.MoveModel(-13 , 0, 0);
	if (cube.GetModelCenter().GetCoordinate(X_AXIS) <= -6.5)
		cube.MoveModel(13, 0, 0);

	//הזזת הקובייה מעלה 200 פריימים
	if (csy && jumpincrease < 201)
	{
		jumpincrease++;
		cube.MoveModel(0, 0.004, 0);
		if (jumpincrease > 199)
		{
			csy = false;
			csyf = true;
		}
	}
	//הוזזת הקובייה מטה 200 פריימים
	if (csyf && jumpincrease < 202)
	{
		jumpincrease--;
		cube.MoveModel(0, -0.004, 0);
		if (jumpincrease < 1)
			csyf = false;
	}



}

void CGameHandler::WriteText()
{
	font = (int)GLUT_BITMAP_TIMES_ROMAN_24; // font type and size
	glColor3f(0, 255, 100);  // yellow color
	int x_pos = glutGet(GLUT_SCREEN_WIDTH) / 2 - 100; // to be at the center of the screen
	int y_pos = 30;

	if (r)
		renderBitmapString(x_pos, 80, (void *)font, "The cube is rotating");
	else
		renderBitmapString(x_pos, 80, (void *)font, "The cube is not rotating");

	if (cs)
		renderBitmapString(x_pos, 120, (void *)font, "The cube can move");
	else
		renderBitmapString(x_pos, 120, (void *)font, "The cube can't move");

	if (cubespeedx == 0)
		renderBitmapString(x_pos, 100, (void *)font, "The Cube is stationary");
	else if (cubespeedx < 0)
		renderBitmapString(x_pos, 100, (void *)font, "The Cube is going left");
	else
		renderBitmapString(x_pos, 100, (void *)font, "The Cube is going right");
}

//keys:
void CGameHandler::KeyPressed(char key)
{
	switch (key)
	{
	case ' '://spacebar
		r = !r;
		break;
	case 13: //Enter
		cs = !cs;
		break;
	case 27://Esc
		break;
	case '1':
		ro = 0.2;
		break;
	case '2':
		ro = 0.4;
		break;
	case '3':
		ro = 0.6;
		break;
	case '4':
		ro = 0.8;
		break;
	case '5':
		ro = 1.0;
		break;
	case 'r':
		StartOfGame();
		break;
	default:
		break;
	}
}

void CGameHandler::SpecialKeyPressed(char key)
{
	switch (key)
	{
	case GLUT_KEY_LEFT:
		cubespeedx -= 0.001;
		break;
	case GLUT_KEY_RIGHT:
		cubespeedx += 0.001;
		break;
	case GLUT_KEY_UP:
		if(jumpincrease == 0)
			csy = true;
		break;
	default:
		break;
	}
}

//getting backgroundColor
float CGameHandler::GetBeckgroundColorR()
{
	return BGColor_R;
}

float CGameHandler::GetBeckgroundColorG()
{
	return BGColor_G;
}

float CGameHandler::GetBeckgroundColorB()
{
	return BGColor_B;
}

//internal procedures:
void CGameHandler::ChangeBackgroundColors(float R, float G, float B)
{
	BGColor_R = R;
	BGColor_G = G;
	BGColor_B = B;
}