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//include directive for DarkGDK.h file
#include "DarkGDK.h"

//constant variables
const int coinHead		= 1;	// 
const int coinTails		= 2;	// 
const int coinAnimation	= 3;	//	
const int headsSprite	= 1;	// 
const int tailsSprite	= 2;	// 
const int coinFlipSprite= 3;	//
const int coinX			= 260;	// 
const int coinY			= 100;	// 
const int refreshRate	= 60;	// stores the refresh rate

//function prototypes
void setUp();
void coinToss();
bool overSprite(int, int, int);

void DarkGDK()
{
// Set window title.
dbSetWindowTitle("Coin Flip");

// Variables to hold the mouse pointer's X and Y coordinates.
int mouseX, mouseY;


// Perform setup operations.
setUp();

// Game loop
while ( LoopGDK() )
	{
		dbCenterText(319, 10, "heads or tails?");
		dbCenterText(319, 22, "make your bet and click the coin!");

	// Determine whether the mouse pointer moved over the image.
	
		if (overSprite(headsSprite, mouseX, mouseY) && dbMouseClick() == 1)
		{
			coinToss();
		}
	// Replace the heads image with the tails image.

	// Refresh the screen.
	dbSync();
	}
}

void setUp()
{
	// Set color key.
	dbSetImageColorKey(0, 255, 0);

	// Load the images.
	dbLoadImage("resources\\Heads.bmp", coinHead);
	dbLoadImage("resources\\Tails.bmp", coinTails);
	dbLoadImage("resources\\Coin Toss Animation.bmp", coinAnimation);

	dbCreateAnimatedSprite(coinFlipSprite, "resources\\Coin Toss Animation.bmp", 4, 1, 
	coinAnimation);

	// Make the sprites, using the images.
	dbSprite(headsSprite, coinX, coinY, coinHead);
	//dbSprite(tailsSprite, coinX, coinY, coinTails);

	// Disable auto refresh and set the refresh rate.
	dbSyncOn();
	dbSyncRate(refreshRate);
}

void coinToss()
{
	int headsOrTails = dbRND(2);

	dbPlaySprite(coinFlipSprite, 1, 4, 1000);
	dbSprite(coinFlipSprite, coinX, coinY, coinAnimation);

	if (headsOrTails == 0)
	{
		dbSprite(headsSprite, coinX, coinY, coinHead);
	}
	else if (headsOrTails == 1)
	{
		dbSprite(tailsSprite, coinX, coinY, coinTails);
	}
}


bool overSprite(int spriteNum, int mouseX, int mouseY)
{
	// Variable to hold the value to return.
	bool insideSprite;

	// Get the X coordinate of the sprite's upper-left corner.
	int upperX = dbSpriteX(spriteNum) - dbSpriteOffsetX(spriteNum);

	// Get the Y coordinate of the sprite's upper-left corner.
	int upperY = dbSpriteY(spriteNum) - dbSpriteOffsetY(spriteNum);

	// Get the X coordinate of the sprite's lower-right corner.
	int lowerX = upperX + dbSpriteWidth(spriteNum);

	// Get the Y coordinate of the sprite's lower-right corner.
	int lowerY = upperY + dbSpriteHeight(spriteNum);

	// Determine whether (mouseX, mouseY) is inside the
	// sprite's bounding rectangle.
	if (mouseX >= upperX && mouseY >= upperY &&
	mouseX <= lowerX && mouseY <= lowerY)
	{
		insideSprite = true;
	}
	else
	{
		insideSprite = false;
	}
// Return the value of insideSprite.
return insideSprite;
} 

mouseX = dbMouseX();
mouseY = dbMouseY();

// in your setup() function add the following line. This line
// will keep your coin-tosses random between one program launch
// to another (otherwise they will always be the same order)...
dbRandomize(dbTimer());

// Now for testing of Heads and Tails within the coinToss() 
// function. To do this, we'll pick a random number between
// 0 and 1000 and then test to see if it's an Odd or Even
// value. If it's Even - we show Heads, otherwise Odd means Tails.
int headsOrTails = dbRND(1000) & 0x01;

dbRandomize(dbTimer());

while (dbSpriteFrame(coinFlipSprite) < 4) {
	dbPlaySprite(coinFlipSprite, 1, 4, 1000);
	dbSync();
}