#include <stdio.h>

#include "Graphics.h"



Graphics graphics; 



float blue_color = 230;



float speed_cloud = 30;

float speed_sun = 60;

float ray_of_light = 0;

int sun_light_direction = 1;



typedef struct{

	float x;

	float y;

	int radius;

} position;



position sun;

position cloud;





void refresh_sun_light(){



	float factor_sun =  graphics.GetElapsedTime() * speed_sun;



	ray_of_light += (sun_light_direction * factor_sun);



	if(ray_of_light <= -10)

		sun_light_direction = 1;

	else if(ray_of_light >= 10)

		sun_light_direction = -1;

}



void refresh_sky_color(){



	float factor_cloud =  graphics.GetElapsedTime() * speed_cloud;



	if((sun.x + sun.radius) > cloud.x && cloud.x > (sun.x - sun.radius) && blue_color > 50)

		blue_color -= factor_cloud;

	else if((sun.x + sun.radius) > (cloud.x + 150) && blue_color <230) 

		blue_color += factor_cloud;



	cloud.x -= factor_cloud;

	

	if(cloud.x <= -150)

		cloud.x = 800;

}



void MainLoop()

{



	refresh_sun_light();



	refresh_sky_color();

	

	//Set Sky Color

	graphics.SetBackgroundColor(0, blue_color - 10, blue_color);





	// Rays of Light

	graphics.SetColor(255, 255, 0); // set color yellow - sun

	graphics.SetLineWidth(5);

		

	graphics.DrawLine2D(50, 500, 250, 500); // sun light horizontal

	graphics.DrawLine2D(150, 400, 150, 600); // sun light vertical



	graphics.DrawLine2D(100 - ray_of_light, 450 - ray_of_light, 200+ ray_of_light, 550 + ray_of_light);

	graphics.DrawLine2D(100 - ray_of_light, 550 + ray_of_light, 200+ ray_of_light, 450 - ray_of_light);

	

	// Sun		

	graphics.FillCircle2D(sun.x, sun.y, sun.radius, 100);





	// Tree

	graphics.SetColor(120, 93, 5); // Tree - Brown

	graphics.FillRectangle2D(650,100,675,210);



	graphics.SetColor(61, 166, 23); // Tree - Dark Green

	graphics.FillCircle2D(663, 270, 70, 100);





	// Home

	graphics.SetColor(145, 147, 148); // Home - Gray

	graphics.FillRectangle2D(200,100,400,300);



	graphics.SetColor(120, 93, 5); // Door - Brown 

	graphics.FillRectangle2D(325,100,375,250);



	graphics.SetColor(0, 0, 0); // Door handle - Brown

	graphics.FillCircle2D(330, 175, 5, 30);



	graphics.SetColor(24, 5, 120); // Window - Dark Blue

	graphics.FillRectangle2D(220,170,280,250);



	graphics.SetColor(255, 191, 0); // Roof - Orange

	graphics.FillTriangle2D(200,300,400,300,300,430);

	



	// Cloud

	graphics.SetColor(255,255,255); // Cloud - White



	graphics.FillCircle2D(cloud.x, cloud.y, cloud.radius, 100);

	graphics.FillCircle2D(cloud.x + 40, cloud.y, cloud.radius, 100);

	graphics.FillCircle2D(cloud.x + 80, cloud.y, cloud.radius, 100);

	graphics.FillCircle2D(cloud.x + 120, cloud.y, cloud.radius, 100);





	// Glass

	graphics.SetColor(61, 166, 23); // Glass - Green

	graphics.FillRectangle2D(0,0,800,100);

}



void Lista05(){

	sun.x = 150;

	sun.y = 500;

	sun.radius = 50;



	cloud.x = 600;

	cloud.y = 500;

	cloud.radius = 30;



	graphics.CreateMainWindow(800, 600, "Ex. 05");

	graphics.SetMainLoop(MainLoop);

	graphics.StartMainLoop();

}



int main (void)

{

	Lista05();	



	return 0;

}