Update the game logic to take note of high scores

src/game_logic.c

@@ -53,8 +53,8 @@ uint8_t add_random_tile(void) {
 	return 0; // Return 0 if we were not able to place the tile, else we return (offset + 1) to indicate where the tile was placed
 }
 
-uint8_t step_game(step_direction dir) {
+int8_t step_game(step_direction dir) {
-	uint8_t done = 0;
+	int8_t done = 0;
 	uint8_t start_offset;
 	int8_t column_step;
 	int8_t row_step;

src/game_logic.h

@@ -14,7 +14,7 @@ typedef enum {
 
 uint8_t reset_game(void);
 uint8_t *get_front_grid(void);
-uint8_t step_game(step_direction dir);
+int8_t step_game(step_direction dir);
 uint16_t calculate_score(void);
 uint8_t add_random_tile(void);
 

src/loading_screen.c

@@ -207,5 +207,4 @@ __attribute__((section("loadscreen"))) const uint8_t __loading_screen[] = {
 	0x00, 0x00, 0x18, 0x00, 0x3C, 0x00, 0x3E, 0x00, 0x08, 0x00, 0x02, 0x00, 0x00, 0x00, 0x70, 0x01, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x47,
 	0x7F, 0x7F, 0x3F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x18, 0x0E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7F, 0x00, 0x4E, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 };
-#pragma require __loading_screen
 

src/main.c

@@ -11,6 +11,19 @@
 #include "game_graphics.h"
 #include "monitor_subroutines.h"
 
+// Make sure the loading screen is included
+#pragma require __loading_screen
+
+#define MOVES_TEXT_X 32
+#define MOVES_TEXT_Y 61
+#define MOVES_TEXT_WIDTH 5
+
+#define SCORE_TEXT_X 32
+#define SCORE_TEXT_Y 29
+#define SCORE_TEXT_WIDTH 5
+
+#define WIN_SCORE_BONUS 10000
+
 void init(void);
 
 // Low level initialization
@@ -26,25 +39,21 @@ void init(void) {
 	memset((void*)DISPLAY_PAGE_2, 0, DISPLAY_PAGE_SIZE);
 }
 
-#define MOVES_TEXT_X 32
-#define MOVES_TEXT_Y 61
-#define MOVES_TEXT_WIDTH 5
-
-#define SCORE_TEXT_X 32
-#define SCORE_TEXT_Y 29
-#define SCORE_TEXT_WIDTH 5
-#pragma require __loading_screen
-
 __task int main(void) {
 	uint16_t moves_count;
-	uint16_t score;
+	uint16_t score = 0;
-	uint8_t done;
+	uint16_t hi_score = 0;
+	int8_t done = 0;
 	
 	init();
 				
 	while(1){ // Outer loop
 		moves_count = 0;
 		
+		// Check if we have a new high-score
+		if (score > hi_score) hi_score = score;
+	
+		// Reset the game, calculate the initial score depending on which tiles we randomly get
 		score = reset_game();
 	
 		// Draw the initial state of the game
@@ -88,7 +97,10 @@ __task int main(void) {
 			moves_count++;
 	
 			// If we have won, break out of this loop
-			if(done) break;
+			if(done) {
+				score += WIN_SCORE_BONUS;
+				break;
+			}
 				
 			// Draw the number of moves
 			draw_number(moves_count, MOVES_TEXT_WIDTH, MOVES_TEXT_X, MOVES_TEXT_Y);
@@ -98,7 +110,10 @@ __task int main(void) {
 			
 			// Unable to add a tile: we ran out of space and lost!!!
 			uint8_t random_tile_off = add_random_tile();
-			if(!random_tile_off) break;
+			if(!random_tile_off) {
+				done = -1; // Lost the game
+				break;
+			}
 			
 			score = calculate_score();