V18 - SRAM / Bugfixes

- Added SDCC and SEGA Headers.
- First version of SRAM Support. (saves highscore) (issue #2 on github).
- Added function to clear SRAM by pressing pause on the title screen, it
shows a screen to inform the player.
- Updated build.bat to pad the rom to 64kb to be able to use SRAM.
- Fixed issue #1 (player death not playing when gameover comes from a
shot).

Author: JulianoFlores

README.MD

@@ -22,19 +22,29 @@ Otherwise you might need to execute the commands yourself.
 
 There's a PHP companion tool, to convert Tiled's CSV output to C Array used in the code.
 
-## Instructions:
-- Move the ship with the D-Pad
-- Hold Button 1 to use the speed boost.
+All the assets (code, graphics and music) were created by tibonev. 
+Everything is licensed under the MIT License (check out LICENSE for more info).
+(c) 2024 tibonev.
 
+## Game: 
 Your mission, choose you accept it is to recover all the sattelites without getting shot by the turrets, good luck.
 Oh yeah, there's a time limit also. oops.
 
-All the assets (code, graphics and music) were created by tibonev. 
-Everything is licensed under the MIT License (check out LICENSE for more info).
-(c) 2024 tibonev.
+### Instructions:
+- Move the ship with the D-Pad
+- Hold Button 1 to use the speed boost.
+
+- Clean the SRAM (delete save high score) press PAUSE on the title screen.
 
 ### Version History: 
 
+V0.18 (08/04/24)
+- Added SDCC and SEGA Headers.
+- First version of SRAM Support. (saves highscore) (issue #2 on github).
+- Added function to clear SRAM by pressing pause on the title screen, it shows a screen to inform the player.
+- Updated build.bat to pad the rom to 64kb to be able to use SRAM.
+- Fixed issue #1 (player death not playing when gameover comes from a shot).
+
 V0.17 (01/04/24)
 - Updated to lastest version of PSGLib, fixed the ringing tone on Square Channel 2, after an sfx has played.
 - Altered death-loop situation, now the level always fully reset (all sattelites and time resets) at each death.
@@ -116,14 +126,4 @@ V0.02: (21/02/24)
 V0.01: (20/02/24)
 - Random Generated Levels
 - Player is controllable with 2 speeds
-- Collision detection of both player-pellet / player-enemy shot are working
-
-### To do:
-- Re-add Scrolling (how to shift all the collisions without slowing down?)
-- Separate code into files / makefile (will require re-write, not worth the effort?)
-- hi-score sram? (understand how to make sram work)
-
-
-
-
-
+- Collision detection of both player-pellet / player-enemy shot are working

build.bat

@@ -2,5 +2,5 @@ call clean.bat
 sdcc -c -mz80 main.c
 sdcc -c -mz80 vdp.c
 sdcc -o main.ihx -mz80 --no-std-crt0 --data-loc 0xC000 -Wl-b_BANK2=0x8000 crt0\crt0_sms.rel main.rel vdp.rel SMSlib.lib PSGlib\PSGlib.rel bank2.rel
-makesms main.ihx game.sms
-
+makesms -pm main.ihx game.sms
+c:\smsdev\emulicious\emulicious game.sms

main.c

@@ -1253,6 +1253,28 @@ void drawTimer(void) {
 }
 
 // Text Screens // 
+void doClearSRAMScreen(void) {
+	int i = 0;
+	
+	clearHiScore();
+
+	black_bg_load();
+	SMS_setBGScrollX(0);
+	SMS_setBGScrollY(0);
+	vdp_clear_sprites();
+
+	SMS_autoSetUpTextRenderer();
+	SMS_printatXY(8,8, "DELETING HI-SCORE...");
+	SMS_printatXY(8,9, "PLEASE WAIT");
+
+	while(i < 150) { 
+		PSGFrame();
+		SMS_waitForVBlank();
+		i++;
+	}
+	doTitleScreen();
+}
+
 void doTitleScreen(void) {
 	int a = 0;
 	int p = 0;
@@ -1294,6 +1316,10 @@ void doTitleScreen(void) {
 	while(a == 0) { 
 		unsigned int key=SMS_getKeysStatus();
 		if(key & PORT_A_KEY_1)	{ a = 1; }
+		if (SMS_queryPauseRequested()) {
+    		SMS_resetPauseRequest();
+			doClearSRAMScreen();
+		}
 		PSGFrame();
 		SMS_waitForVBlank();
 		p++;
@@ -1449,31 +1475,32 @@ void doGameEnd(void) {
 	//return;
 }
 
-//struct sram { unsigned int points; };
-//struct sram *savegame = (struct sram*)(&SMS_SRAM);
+struct sram { unsigned int points; };
+struct sram *savegame = (struct sram*)(&SMS_SRAM);
 
 void checkHiScore(void) {
 	if(score > hiscore) { 
 		hiscore = score; // set the new hi-score //
-		//SMS_enableSRAM(); // enable save ram //
-		//savegame->points = hiscore;
-		//SMS_disableSRAM();
+		SMS_enableSRAM(); // enable save ram //
+		savegame->points = hiscore; // write the score to SRAM
+		SMS_disableSRAM();
 		return;
 	}
 	return;
 }
 
 void loadHiScore(void) {
-	//SMS_enableSRAM();
-	//hiscore = savegame->points;
-	//SMS_disableSRAM();
+	
+	SMS_enableSRAM();
+	hiscore = savegame->points;
+	SMS_disableSRAM();
 }
 
 void clearHiScore(void) { 
 	hiscore = 0;
-	//SMS_enableSRAM();
-	//savegame->points = hiscore;
-	//SMS_disableSRAM();
+	SMS_enableSRAM();
+	savegame->points = hiscore;
+	SMS_disableSRAM();
 }
 
 void doNewGame(void) { 
@@ -1511,7 +1538,7 @@ void main(void) {
 
 	vdp_vram_clear();
 
-	clearHiScore();
+	//clearHiScore();
 	loadHiScore();
 
 	black_bg_load();
@@ -1609,6 +1636,7 @@ void main(void) {
 		// Game Over //
 		if(gamestate == 2) { 
 			PSGStop();
+			explosion_draw();
 			checkHiScore();
 			doGameOver();
 			reset_enemy_variables();
@@ -1657,4 +1685,9 @@ void main(void) {
 		}
 
 	}
-}
+}
+
+SMS_EMBED_SEGA_ROM_HEADER(9999,0); // code 9999 hopefully free, here this means 'homebrew'
+SMS_EMBED_SDSC_HEADER(0,17, 2024,4,4, "tibonev", "Raposa do Sol",
+  "Clone of Solar Fox.\n"
+"Built using devkitSMS & SMSlib - https://github.com/sverx/devkitSMS");