diff --git a/src/game.h b/src/game.h
index 734af65..43664a5 100644
--- a/src/game.h
+++ b/src/game.h
@@ -1,12 +1,154 @@
+#include "sprite_sheet.h"
+#include "text.h"
+#include "ascii.h"
+
+#define DEBUG 1
+#define MAX 216
+#define SIZE 100
+#define NUMS_TO_GENERATE 10
+
+enum gradient {Blue = 0, Green = 10, Red = 20, Yellow = 30, Magenta = 40, Cyan = 50, Grey = 60} colour = 0;
+
+int display_grid();
+int backdrop (enum gradient colour);
+int check_key(void);
+int Ren_restart(void);		// game over/restart
+int Ren_pause(void);		// pause
+int Ren_game(void);		// render game
+int Ren_logo (void);		// display logo
+int Ren_about (void);		// display about
+int Ren_info (void);		// info screen
+int Ren_menu (void);		// main menu
+int Ren_level (void);		// display level / current score
+int Ren_next (void);		// display next block/brick/piece
+int Ren_high (void);		// display high scores
+int Ren_line (char line[], int char_x, int char_y, int ln, int ll, bool col ); // parameter names in function prototypes not necessary 
+int initSDL (void);		// initialise SDL
+int shutdownSDL (void);		// shutdown SDL
+int render (void);		// render output
+int init_gfx (void);		// create texture
+int i, j, k, x, y, z, l;  	// index variables
+int gamep = 0;
+int tile_c;
+int tile_pos = 112;
+
+bool next_p = false;		// next piece flag
+bool quit = false;		// quit flag
+bool main_m = false;
+bool pause_f = 0;
+
+SDL_Window *window = NULL;
+SDL_Renderer *sr;
+SDL_Event event;
+SDL_RWops* rwops_new;
+SDL_Surface* image;
+SDL_Texture * texture;
+SDL_Rect logo_src = { 384, 0, 78, 54 };
+SDL_Rect logo_dst = { 230, 136, 78, 54 };
+//SDL_Rect char_src = {463, 0 , 7 , 5};
+//SDL_Rect char_dst = {22, 11 , 7 , 5};
+SDL_Rect main_back = {110, 0, 100, 200};
+SDL_Rect main_trim = {111, 0, 98, 200};
+SDL_Rect level_back = {231, 7, 76, 66};
+SDL_Rect level_trim = {230, 6, 78, 68};
+SDL_Rect next_back = {257, 86, 18, 37};
+SDL_Rect next_trim = {256, 85, 20, 39};
+SDL_Rect high_back = {13, 7, 76, 186};
+SDL_Rect high_trim = {12, 6, 78, 188};
+SDL_Rect tile_src = {72, 0, 12, 11};
+SDL_Rect tile_dst = {112, 1, 12, 11};
+SDL_Rect gameo_back = {119, 93, 82, 13};
+
+/* window paramaters */
+#define WIDTH 1280		// pixels
+#define HEIGHT 800		// pixels
+#define TITLE "FUN COLUMNS"	// window title
+
+/** board background colours **/
+int grad_tab[] = {
+
+	0x0000cc, 0x0000bb, 0x0000aa, 0x000099, 0x000088, 0x000077, 0x000066, 0x000055, 0x000044, 0x000033, // blue
+	0x00cc00, 0x00bb00, 0x00aa00, 0x009900, 0x008800, 0x007700, 0x006600, 0x005500, 0x004400, 0x003300, // green
+	0xcc0000, 0xbb0000, 0xaa0000, 0x990000, 0x880000, 0x770000, 0x660000, 0x550000, 0x440000, 0x330000, // red
+	0xcccc00, 0xbbbb00, 0xaaaa00, 0x999900, 0x888800, 0x777700, 0x666600, 0x555500, 0x444400, 0x333300, // yellow
+	0xcc00cc, 0xbb00bb, 0xaa00aa, 0x990099, 0x880088, 0x770077, 0x660066, 0x550055, 0x440044, 0x330033, // magenta
+	0x00cccc, 0x00bbbb, 0x00aaaa, 0x009999, 0x008888, 0x007777, 0x006666, 0x005555, 0x004444, 0x003333, // cyan
+	0xcccccc, 0xbbbbbb, 0xaaaaaa, 0x999999, 0x888888, 0x777777, 0x666666, 0x555555, 0x444444, 0x333333  // grey
+};
+
+uint32_t tile_1, tile_2;
+int i, j, k, x, y, z;
+int counter = 0;
+int col, row;
+int tile_shp, tilesrc_x, tilesrc_y, tiledst_x, tiledst_y;
+
+int display_tile();
+
+int grid [2][18][8]= {
+	{
+		{0, 0, 0, 0, 0, 0, 0, 0},		// colours
+		{0, 0, 0, 0, 0, 0, 0, 0},
+		{0, 0, 5, 0, 0, 0, 0, 0},
+		{0, 0, 1, 0, 0, 0, 0, 0},
+		{0, 0, 6, 0, 0, 0, 0, 0},
+		{0, 0, 3, 0, 4, 0, 0, 0},
+		{0, 0, 5, 0, 3, 0, 0, 0},
+		{3, 0, 1, 0, 5, 0, 0, 0},
+		{5, 0, 4, 0, 0, 0, 0, 0},
+		{6, 0, 3, 0, 2, 0, 0, 6},
+		{3, 0, 5, 3, 2, 0, 0, 3},
+		{6, 0, 4, 1, 6, 1, 4, 2},
+		{4, 0, 5, 2, 4, 2, 3, 2},
+		{1, 1, 2, 4, 3, 2, 5, 6},
+		{5, 6, 2, 2, 4, 5, 3, 2},
+		{4, 1, 4, 4, 1, 1, 4, 1},
+		{6, 4, 6, 1, 3, 3, 6, 3},
+		{5, 4, 6, 5, 6, 1, 1, 6},
+	},
+	{
+		{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},
+		{0, 0, 0, 0, 0, 0, 0, 0},
+		{0, 0, 0, 0, 0, 0, 0, 0},
+		{0, 0, 0, 0, 0, 0, 0, 0},
+		{0, 0, 0, 0, 0, 0, 0, 0},
+		{0, 0, 0, 0, 0, 0, 0, 0},
+		{0, 0, 0, 0, 0, 0, 0, 0},
+		{0, 0, 0, 0, 0, 0, 0, 0},
+		{0, 0, 0, 0, 0, 0, 0, 0},
+		{0, 0, 0, 0, 0, 0, 0, 0},
+		{0, 0, 0, 0, 0, 0, 0, 0},
+		{0, 0, 0, 0, 0, 0, 0, 0},
+		{0, 0, 0, 0, 0, 0, 0, 0},
+		{0, 0, 0, 0, 0, 0, 0, 0},
+		{0, 0, 0, 0, 0, 0, 0, 0},
+	}
+};
+
+// sprite sheet top left coordinates (pink, green, purple, yellow, orange,cyan)
+int spr_x[5][6] = {
+{0, 12, 24, 36, 48, 60}, // ball 1
+{72, 84, 96, 108, 120, 132}, // square 1
+{144, 156, 168, 180, 192, 204}, // square 2
+{216, 228, 240, 252, 264, 276}, // square 3
+{288, 300, 312, 324, 336, 348}, // ball 2
+};
+
+int mask[2] = {360, 372};
+
+int spr_y[6] = {0, 11, 22, 33, 44, 55};
+ 
 /********************
- * tile combos	    *
+ * tile colours	    *
  * empty	= 0 *
- * green	= 1 *
- * purple	= 2 *
- * yellow	= 3 *
- * orange	= 4 *
- * cyan		= 5 *
- * pink		= 6 *
+ * pink		= 1 *
+ * green	= 2 *
+ * purple	= 3 *
+ * yellow	= 4 *
+ * orange	= 5 *
+ * cyan		= 6 *
  * ******************/
 int Bricks [216][3] = {
 {1,1,1},