Implement title screen

Merge pull request #6 from haroldo-ok/title-screen

Makefile

@@ -3,7 +3,7 @@ OBJS := data.rel actor.rel chicken_crossing.rel
 
 all: $(PRJNAME).sms
 
-data.c: data/* data/sprites_tiles.psgcompr data/background_tiles.psgcompr \
+data.c: data/* data/sprites_tiles.psgcompr data/background_tiles.psgcompr data/title_tiles.psgcompr \
 	data/player_1_score.psg data/player_2_score.psg data/player_3_score.psg data/player_4_score.psg
 	folder2c data data
 
@@ -13,6 +13,9 @@ data/sprites_tiles.psgcompr: data/img/sprites.png
 data/background_tiles.psgcompr: data/img/background.png
 	BMP2Tile.exe data/img/background.png -palsms -fullpalette -savetiles data/background_tiles.psgcompr -savetilemap data/background_tilemap.bin -savepalette data/background_palette.bin
 
+data/title_tiles.psgcompr: data/img/title.png
+	BMP2Tile.exe data/img/title.png -palsms -fullpalette -savetiles data/title_tiles.psgcompr -savetilemap data/title_tilemap.bin -savepalette data/title_palette.bin
+
 data/%.psg: data/deflemask/%.vgm
 	vgm2psg $< $@ 23
 

chicken_crossing.c

@@ -1,3 +1,5 @@
+#include <stdlib.h>
+#include <stdio.h>
 #include <string.h>
 #include "lib/SMSlib.h"
 #include "lib/PSGlib.h"
@@ -264,8 +266,8 @@ void handle_spawners() {
 	}
 }
 
-void draw_background() {
-	unsigned int *ch = background_tilemap_bin;
+void draw_background_map(void *map) {
+	unsigned int *ch = map;
 
 	SMS_setNextTileatXY(0, 0);
 	for (char y = 0; y != 24; y++) {
@@ -277,6 +279,10 @@ void draw_background() {
 	}
 }
 
+void draw_background() {
+	draw_background_map(background_tilemap_bin);
+}
+
 char is_touching(actor *act1, actor *act2) {
 	static actor *collider1, *collider2;
 	static int r1_tlx, r1_tly, r1_brx, r1_bry;
@@ -438,18 +444,22 @@ void perform_level_end_sequence() {
 	level.ending = 0;
 }
 
+void clear_scores() {
+	set_score(score1, 0);
+	set_score(score2, 0);
+	set_score(score3, 0);
+	set_score(score4, 0);
+}
+
 char gameplay_loop() {
 	int frame = 0;
 	int fish_frame = 0;
 	int torpedo_frame = 0;
 	int timer_delay = 30;
 
 	animation_delay = 0;
-
-	set_score(score1, 0);
-	set_score(score2, 0);
-	set_score(score3, 0);
-	set_score(score4, 0);
+
+	clear_scores();
 	score1->x = 7;
 	score1->y = 1;
 	score2->x = 12;
@@ -566,6 +576,46 @@ char handle_gameover() {
 }
 
 char handle_title() {
+	unsigned int joy = SMS_getKeysStatus();
+
+	SMS_waitForVBlank();
+	SMS_displayOff();
+	SMS_disableLineInterrupt();
+
+	reset_actors_and_player();
+	clear_sprites();
+
+	SMS_loadPSGaidencompressedTiles(title_tiles_psgcompr, 0);	
+	SMS_loadBGPalette(title_palette_bin);
+	SMS_loadTileMap(0, 0, title_tilemap_bin, title_tilemap_bin_size);
+
+	SMS_load1bppTiles(font_1bpp, 352, font_1bpp_size, 0, 12);
+	SMS_configureTextRenderer(352 - 32);
+
+	SMS_setNextTileatXY(3, 16);
+	puts("Press any button to start");
+
+	SMS_setNextTileatXY(3, 18);
+	puts("Last score:");
+	SMS_setNextTileatXY(3, 19);
+	printf("Player 1: %d Player 2: %d", score1->value, score2->value);
+	SMS_setNextTileatXY(3, 20);
+	printf("Player 3: %d Player 4: %d", score3->value, score4->value);
+
+	SMS_displayOn();
+
+	// Wait button press
+	do {
+		SMS_waitForVBlank();
+		joy = SMS_getKeysStatus();
+	} while (!(joy & (PORT_A_KEY_1 | PORT_A_KEY_2 | PORT_B_KEY_1 | PORT_B_KEY_2)));
+
+	// Wait button release
+	do {
+		SMS_waitForVBlank();
+		joy = SMS_getKeysStatus();
+	} while ((joy & (PORT_A_KEY_1 | PORT_A_KEY_2 | PORT_B_KEY_1 | PORT_B_KEY_2)));
+
 	return STATE_GAMEPLAY;
 }
 
@@ -577,6 +627,8 @@ void main() {
 	SMS_VDPturnOnFeature(VDPFEATURE_HIDEFIRSTCOL);
 	SMS_VDPturnOnFeature(VDPFEATURE_LOCKHSCROLL);
 
+	clear_scores();
+
 	while (1) {
 		switch (state) {
 
@@ -596,6 +648,6 @@ void main() {
 }
 
 SMS_EMBED_SEGA_ROM_HEADER(9999,0); // code 9999 hopefully free, here this means 'homebrew'
-SMS_EMBED_SDSC_HEADER(0,3, 2021,12,11, "Haroldo-OK\\2021", "Chicken Crossing",
+SMS_EMBED_SDSC_HEADER(0,4, 2021,12,12, "Haroldo-OK\\2021", "Chicken Crossing",
   "Made for The Honest Jam III - https://itch.io/jam/honest-jam-3.\n"
   "Built using devkitSMS & SMSlib - https://github.com/sverx/devkitSMS");