artificial.js

var stonePos2 = 0;
var i,j;
var rows_completed =0;
var AImode = false;
var cnt2 = 0;

//defining x y axis drawing pixel location for each block 10*20
var hasBlock = new Array(20);
for (i = 0; i < 20; i++) {
    hasBlock[i] = new Array(10);
}

//store color map of each block
var blockColor = new Array(20);
for (i = 0; i < 20; i++) {
    blockColor[i] = new Array(10);
}


var blockPositionMap_X = new Array(10);
var blockPositionMap_Y = new Array(20);
var xPosition = 10;
var yPosition = 10;

//******** init the block color and exsistency  ******
for(i=0;i<20;i++)
	for(j=0;j<10;j++){
		hasBlock[i][j] = 0;
	}

for(i=0;i<20;i++)
	for(j=0;j<10;j++){
		blockColor[i][j] = "#000000";//grey
	}	

// X position of each block in each line j, width is 30
for(j=0;j<10;j++){
	blockPositionMap_X[j] = xPosition;
	xPosition+=30;
}
// Y position of each block in each line j, height is 30
for(i=0;i<20;i++){
	blockPositionMap_Y[i] = yPosition;
	yPosition+=30;
}

/*function gameSpeed(){

	setInterval(function() {
    	$('.Timer').text((new Date - start) / 1000 + " Seconds");
	}, 1000);
}*/

function randomPick(){
	//var myArray = ['drawLshape_left', 'drawIshape', 'drawSquare', 'drawLshape_right', 'drawTRIshape', 'drawLIshape_left','drawLIshape_right']; 
	var newShape = PIECES[Math.floor(Math.random() * PIECES.length)];
	//alert(newShape[0].orientation);
	return newShape;
}

function blockUpdate(){
	rows_completed+=checkForCancelRows();
	if(playerTurn==false || AImode == true){	
		if(AImode){
			var shape = randomPick();
		}
		else{
			var shape = lastShape;
		}
		GetDecisionLocation(shape);
		playerTurn = true;
	}
}


function GetDecisionLocation(shape){
	//AI CODE GOES HERE
	// Each shape has its belonging color, here we choose it color
	var color = GetColorReference(shape);
	// Pick the best move for this shape
	var decision = pickDecision(shape);
	//alert("hi");
	if(decision.noMoveCanMake == true)
	{
		gameOver=true;
		alert("It is impossible! Are you cheating?");
        window.location.reload(false); 
	}
	else
	{ 
		// update the real map with the placed shape
		  for (var i = 0; i < decision.orientation.length; i++) {
	      		for (var j = 0; j < decision.orientation[i].length; j++) {
	      			if(decision.orientation[i][j]==1)
	      			{
	      				hasBlock[decision.row-(decision.orientation.length-1)+i][decision.column+j]=1;
	      				blockColor[decision.row-(decision.orientation.length-1)+i][decision.column+j]=color;
	      			}
	      		}
	       }
	}

	//return {
	//	'placeLocation': [[5,5],[19,0],[19,1],[19,2],[19,3],[19,4],[19,5],[19,6],[19,7],[19,8],[19,9],[17,7],[17,8],[18,3],[18,4],[18,5],[18,6]]
	//};
}

//color of the shape. Get the color when drawing for that shape(!!!Suffer from change depending orientation name)
function GetColorReference(shape){
	switch(shape){
		case PIECES[0]:
		 	return "#99CC00";//green
		 	break;
		case PIECES[1]: 
			return"#009933";//dark green
			break;
		case PIECES[2]: 
			return"#FF6666";//pink
			break;
		case PIECES[3]: 
			return"#3399CC";//blue
			break;
		case PIECES[4]: 
			return"#CC3399";//purple
			break;
		case PIECES[5]: 
			return"#FFFF99";//white
			break;
		case PIECES[6]: 
			return"#FF9933";//brown
			break;
		default:
			return"#000000";//grey
			break;
	}
}

// This function is used to check how many rows can be canceled in this turn
function checkForCancelRows(){
	var rows_removed=0;
	for(i=0;i<20;i++)
	{
		var cancel = true;
		var rowCancel =-1;
		for(j=0;j<10;j++)
		{ //checking if this row is full to determine if needs to be cancelled
			if(hasBlock[i][j]==0)
				cancel=false;
			else
				rowCancel=i;			
		}
		if(cancel==true)
		{//if this row needs to be cancelled, shift all blocks above down by 1 block
			rows_removed++;
			for(m=rowCancel;m>0;m--){
				for(n=0;n<10;n++)
				{
					hasBlock[m][n]=hasBlock[m-1][n];
					blockColor[m][n]=blockColor[m-1][n];
				}
			}
			//add player lines
			if(!AImode && isArcade){
				if(cnt2>(6-currentLevel)){
				for(n=0;n<10;n++){
	                for(m=1;m<20;m++)
	                {
	                    if(blockMap[m][n]!="#000000"){
	                        if(n%2==stonePos2){
	                            blockMap[m-1][n]="#999999";
	                        } else {
	                            blockMap[m-1][n]="#000000";    
	                        } 
	                        break;
	                    }
	                }
            	}
            	cnt2=0;
			}
			cnt2++;
			}
			
            
/*			if(stoneCnt>)
			for(m=0;m<19;m++){
                for(n=0;n<10;n++)
                {
                    blockMap[m][n]=blockMap[m+1][n];
                }
            }
            for(n=0;n<10;n+=1){
                if(n%2==stonePos2){
                    blockMap[19][n]="#999999";
                } else {
                    blockMap[19][n]="#000000";    
                }
            }
            stonePos2=1-stonePos2;*/
		}
		stonePos2=1-stonePos2;
	}
	return rows_removed;		
}