#include<lpc214x.h>
#include<string.h>
#include "hub75.h"

#define debounceDelay 180
_Bool gameOver = 0; 			    //this flag bit is set to 1 when game is over
int score = 0;						    //holds the score during gameplay
int count=0;									//used for screen refresh
_Bool generate_new_shape = 0; //this flag bit is set to 1 when neww shape is be generated
int shape_current_row_index;  //holds row number of the current position
int shape_current_col_index;  //holds column number of the current position
char current_shape_type; 			//l - line, L - L,  S = Square, T - Tee, Z - Zee 
int current_shape_orientation;// 0 = original, 1 = 90 deg CW, 2 = 180 deg CW 3 = 270 deg CW


//****************************************************main**************************************************//
int main()
{
	Initialize_GPIO();
	shape_current_row_index = 0; shape_current_col_index = 15;
	current_shape_type = generateRandomShape();
	current_shape_orientation = generateRandomOrientation(current_shape_type);
	defineBoundaries(10,20);

 while(1)
		{
			if(gameOver==0)
			{showDataOnHUB32x32();}
			else 
			{showGameOver();}
			
			count++;
	
			
			if(gameOver == 0)
			{
			if(!(FIO0PIN & (1<<15))) //rotate
			{
				if(!rotate_collision_detection(shape_current_row_index,shape_current_col_index,current_shape_type,current_shape_orientation))
				{
				delay2(debounceDelay);
				makeCurrentShapeBitsZero(shape_current_row_index,shape_current_col_index,current_shape_type,current_shape_orientation);
				current_shape_orientation =	rotateShape(current_shape_orientation,current_shape_type);
				}
				else
				{/**do nothing*/}
			}
			if(!(FIO0PIN & (1<<14))) //move left
				{
					if(!left_collision_detection(shape_current_row_index,shape_current_col_index,current_shape_type,current_shape_orientation))
					{
						delay2(debounceDelay);
						makeCurrentShapeBitsZero(shape_current_row_index,shape_current_col_index,current_shape_type,current_shape_orientation);
					  shape_current_col_index--;
					}
					else
					{
						//do nothing
					}
					
				}
			if(!(FIO0PIN & (1<<16))) //move right
				{
					if(!right_collision_detection(shape_current_row_index,shape_current_col_index,current_shape_type,current_shape_orientation))
					{
						delay2(debounceDelay);
						makeCurrentShapeBitsZero(shape_current_row_index,shape_current_col_index,current_shape_type,current_shape_orientation);
						shape_current_col_index++;
					}
					else
					{
						//do nothing
					}
				}
			if(generate_new_shape ==1) //if it's a new shape then reset position and generate new shape
			{
				shape_current_row_index = 0; shape_current_col_index = 15;
				generate_new_shape = 0;
			}
			else //if it's not a new shape then continue
			{
				put_shape_to_main_matrix(shape_current_row_index,shape_current_col_index,current_shape_type,current_shape_orientation); //add one more parameter for shape type
			}
				
			if(count>25) //edit this to increase or decrease the move down speed
			{
				if(!down_collision_detection(shape_current_row_index,shape_current_col_index,current_shape_type,current_shape_orientation)) 
				{	
					makeCurrentShapeBitsZero(shape_current_row_index,shape_current_col_index,current_shape_type,current_shape_orientation);
					shape_current_row_index = shape_current_row_index + 1; 
					put_shape_to_main_matrix(shape_current_row_index,shape_current_col_index,current_shape_type,current_shape_orientation); 
				}
				else
				{
					if(checkForGameOver(shape_current_row_index)==1)
					{ 
						gameOver=1;
						beepGameOver();beepGameOver();beepGameOver();
						updateGOmatrixWithScore(score);//call game ovr update matrix here
					}
					if(checkRowForOnes()==1) //down collision detected now check for row containing all 1s
					{
						beepOnce();
						score++;//update score
					}
					else
					{/*do nothing */}
					beepOnce();
					generate_new_shape = 1;
					current_shape_type = generateRandomShape();
					current_shape_orientation = generateRandomOrientation(current_shape_type);
				}
				count=0;
			}
		}
	}	
}