diff --git a/src/column.c b/src/column.c
index d476ec7..5b93cc2 100644
--- a/src/column.c
+++ b/src/column.c
@@ -15,14 +15,18 @@
  * orange	= 5 *
  * cyan		= 6 *
  * ******************/
-int tile_current[3]	= {1, 2, 3};
-int tile_next[3]	= {5, 5, 5};
-int colcnt[8]		= {0, 0, 0, 0, 0, 0, 0, 0}; // number of empty spaces in each column
+
+int tile_current[3];
+int tile_next[3];
+int tile_initial[3];
+int colcnt[8]		= {0, 0, 0, 0, 0, 0, 0, 0};			// number of empty spaces in each column
 
 //////////////////////////////// GAME BOARD ARRAY //////////////////////////
+// central to game
+
 int grid [2][18][8] = {
 	{
-		{0, 0, 0, 0, 0, 0, 0, 0},		// colours
+		{0, 0, 0, 0, 0, 0, 0, 0},				// colours
 		{0, 0, 0, 0, 0, 0, 0, 0},
 		{0, 0, 0, 0, 0, 0, 0, 0},
 		{0, 0, 0, 0, 0, 0, 0, 0},
@@ -42,7 +46,7 @@ int grid [2][18][8] = {
 		{0, 0, 0, 0, 0, 0, 0, 0},
 	},
 	{
-		{0, 0, 0, 0, 0, 0, 0, 0},		// matches
+		{0, 0, 0, 0, 0, 0, 0, 0},				// matches
 		{0, 0, 0, 0, 0, 0, 0, 0},
 		{0, 0, 0, 0, 0, 0, 0, 0},
 		{0, 0, 0, 0, 0, 0, 0, 0},
@@ -64,6 +68,8 @@ int grid [2][18][8] = {
 };
 
 ///////////////////////////// COUNT COLUMNS ////////////////////////////////
+// count available rows in each column
+
 int count_col(void) {
 for (int i = 0; i < 8; i++) {
 colcnt[i] = 0;
@@ -71,18 +77,19 @@ colcnt[i] = 0;
 
 	for (int i = 0; i < 8; i++) {
 		for (int j = 0; j < 18; j++) {
-			if (grid[0][j][i] == 0) { colcnt[i]++;}		// count empty spaces in each column
+			if (grid[0][j][i] == 0) { colcnt[i]++;}		// count empty rows in each column
 		}
 	}
 }
 
 ////////////////////////////////  NEW COLUMN //////////////////////////
 // randomly choose from remaining available columns to drop next brick into
+
 int new_column(void) {
-	int avl;				// general counter
-	int actual_col		= 0;		// actual absolute column in game panel
-	int totcol_avail	= 0;		// keep track of available columns
-	int randc;				// random column number
+	int avl;							// general counter
+	int actual_col		= -1;					// actual absolute column in game panel
+	int totcol_avail	= 0;					// keep track of available columns
+	int randc;							// random column number
 
 	//totcol_avail = 0;
 	count_col();
@@ -90,16 +97,15 @@ int new_column(void) {
 		if (colcnt[i] > 3) {totcol_avail++;}			// count total available columns
 	}
 	if (totcol_avail == 0) {
-		printf("game over\n");
-		restart = true;
-		} else {				// no more columns available
+		game_end = 2;						// game over
+		} else {						// no more columns available
 			randc = randombytes_uniform(totcol_avail) + 0;	// choose random number from available columns
 			avl = -1;
 			for (int i = 0; randc != avl; i++) {		// translate random num from avail column to actual column
 				if (colcnt[i] > 3) {
 					avl++;
 				}
-				actual_col = i;					// might need to move this down to next brace
+				actual_col = i;				// might need to move this down to next brace
 			}
 		}
 	return actual_col;						// return the random column
@@ -107,6 +113,7 @@ int new_column(void) {
 
 //////////////////////////////// DISPLAY COLUMN //////////////////////////
 //  display brick in relevant row/column of board array
+
 	int disp_column(int row, int col) {
 	for (int i = -1; i < 3; i++) {
 		grid[0][row + i][col] = tile_current[i];
@@ -115,18 +122,34 @@ int new_column(void) {
 }
 
 //////////////////////////////// NEW BRICK //////////////////////////
-// generate random 3 tile bricks for current and preview
-	int new_brick(void) {
+// generate random 3 tile bricks for initial, current and preview
+
+	int next_brick(void) {
 	for (int i = 0; i < 3; i++) {
-		tile_current[i] = randombytes_uniform(6) + 1;	// brick in play
-		tile_next[i] = randombytes_uniform(6) + 1;	// next brick preview
+		tile_next[i] = randombytes_uniform(6) + 1;		// next brick preview
+	}
+	return 0;
+}
+
+	int current_brick(void) {
+	for (int i = 0; i < 3; i++) {
+		tile_current[i] = tile_next[i];				// brick in play (current brick)
+	}
+	next_brick();
+	return 0;
+}
+
+	int initial_brick(void) {
+	for (int i = 0; i < 3; i++) {
+		tile_current[i] = randombytes_uniform(6) + 1;		// initial brick
 	}
 	return 0;
 }
 
 //////////////////////////////// ROTATE COLUMN //////////////////////////
 // rotate (cycle) tiles in brick by 1
-int rotate_col(void) {
+
+	int rotate_col(void) {
 	int temp = tile_current[0];
 	tile_current[0] = tile_current[1];
 	tile_current[1] = tile_current[2];
@@ -136,12 +159,14 @@ int rotate_col(void) {
 
 //////////////////////////////// MOVE HORIZONTALLY //////////////////////////
 // move brick left & right using cursor keys
+
 int move_horiz(void) {
 return 0;
 }
 
 ////////////////////////////////  MOVE VERTICALLY //////////////////////////
 // move brick down one place at a time
+
 int move_down(void) {
 return 0;
 }
@@ -162,6 +187,7 @@ int reset(void) {
 	}
 
 // reset row/column
- 	row = col = 0;	
+ 	row = -1;
+ 	col = 0;	// col = new_column();
 	return 0;
 }