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Estrai schermate testuali in src/screens/ (un file per schermata)

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Ogni schermata testuale (font IBM) ora vive in un file separato nella
sottocartella src/screens/:
- screens.h: dichiarazioni + helper (ending_puttext/putdigit)
- screens.c: implementazione degli helper condivisi
- instructions.c: schermata istruzioni (Window layer)
- death.c: schermata di sconfitta (game_over==1)
- going_deeper.c: transizione livello (game_over==2)
- finale.c: finale tragico (game_over==3, spoiler)

engine.c ora chiama show_instructions(), show_death(),
show_going_deeper(), show_finale() invece di avere il codice inline.
Il titolo resta un'immagine (title_bg.png), non testuale.
This commit is contained in:
Matteo Benedetto
2026-06-25 22:43:50 +02:00
parent fb22126458
commit 36951617d9
8 changed files with 152 additions and 94 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Makefile
+3 -3
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@@ -9,7 +9,7 @@ SCRIPTS_DIR = scripts
BUILD_DIR = build
# C source files
SRCS = $(SRC_DIR)/main.c $(SRC_DIR)/engine.c $(SRC_DIR)/globals.c $(SRC_DIR)/maze.c $(SRC_DIR)/sound.c $(SRC_DIR)/render.c $(SRC_DIR)/player_logic.c $(SRC_DIR)/enemy_logic.c $(SRC_DIR)/tiles.c $(SRC_DIR)/player.c $(SRC_DIR)/enemy.c $(SRC_DIR)/gameover.c $(SRC_DIR)/stamina.c $(SRC_DIR)/level.c $(SRC_DIR)/title_bg.c
SRCS = $(SRC_DIR)/main.c $(SRC_DIR)/engine.c $(SRC_DIR)/globals.c $(SRC_DIR)/maze.c $(SRC_DIR)/sound.c $(SRC_DIR)/render.c $(SRC_DIR)/player_logic.c $(SRC_DIR)/enemy_logic.c $(SRC_DIR)/tiles.c $(SRC_DIR)/player.c $(SRC_DIR)/enemy.c $(SRC_DIR)/gameover.c $(SRC_DIR)/stamina.c $(SRC_DIR)/level.c $(SRC_DIR)/title_bg.c $(SRC_DIR)/screens/screens.c $(SRC_DIR)/screens/instructions.c $(SRC_DIR)/screens/death.c $(SRC_DIR)/screens/going_deeper.c $(SRC_DIR)/screens/finale.c
all: $(BUILD_DIR)/hello_iso.gb $(BUILD_DIR)/test_gameover.gb $(BUILD_DIR)/test_finale.gb
@@ -28,7 +28,7 @@ generate_c_assets: generate_images
$(PNG2ASSET) $(ASSETS_DIR)/next_level.png -c $(SRC_DIR)/next_level.c -map -bpp 2 -noflip -max_palettes 1
$(PNG2ASSET) $(ASSETS_DIR)/stamina.png -c $(SRC_DIR)/stamina.c -bpp 2 -noflip -keep_palette_order
$(PNG2ASSET) $(ASSETS_DIR)/level.png -c $(SRC_DIR)/level.c -sw 8 -sh 16 -bpp 2 -noflip -keep_palette_order -keep_duplicate_tiles
$(PNG2ASSET) $(ASSETS_DIR)/title_bg.png -c $(SRC_DIR)/title_bg.c -map -bpp 2 -noflip -keep_palette_order -max_palettes 1
$(PNG2ASSET) $(ASSETS_DIR)/title_bg.png -c $(SRC_DIR)/title_bg.c $(SRC_DIR)/screens/screens.c $(SRC_DIR)/screens/instructions.c $(SRC_DIR)/screens/death.c $(SRC_DIR)/screens/going_deeper.c $(SRC_DIR)/screens/finale.c -map -bpp 2 -noflip -keep_palette_order -max_palettes 1
# Main ROM target
$(BUILD_DIR)/hello_iso.gb: generate_c_assets $(SRCS)
@@ -52,4 +52,4 @@ clean:
rm -f $(SRC_DIR)/gameover.c $(SRC_DIR)/gameover.h
rm -f $(SRC_DIR)/stamina.c $(SRC_DIR)/stamina.h
rm -f $(SRC_DIR)/level.c $(SRC_DIR)/level.h
rm -f $(SRC_DIR)/title_bg.c $(SRC_DIR)/title_bg.h
rm -f $(SRC_DIR)/title_bg.c $(SRC_DIR)/screens/screens.c $(SRC_DIR)/screens/instructions.c $(SRC_DIR)/screens/death.c $(SRC_DIR)/screens/going_deeper.c $(SRC_DIR)/screens/finale.c $(SRC_DIR)/title_bg.h
src/engine.c
+5 -91
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@@ -20,6 +20,7 @@
#include "stamina.h"
#include "level.h"
#include "title_bg.h"
#include "screens/screens.h"
/**
* Inizializza la schermata del titolo
@@ -195,27 +196,6 @@ void engine_init(void) {
update_level_display(); // Mostra l'indicatore livello (top-left)
}
/**
* Scrive una stringa nel map_buffer (copria RAM della BG map 32x32) usando gli indici
* tile del font IBM (tile = ASCII - 32, il font parte dallo spazio). Usato per la
* schermata finale senza dipendere da printf/console.
*/
static void ending_puttext(uint8_t col, uint8_t row, const char *s) {
uint8_t i = 0;
while (s[i]) {
if (col + i < 32) {
map_buffer[(uint16_t)row * 32 + col + i] = (uint8_t)(s[i] - ' ');
}
i++;
}
}
static void ending_putdigit(uint8_t col, uint8_t row, uint8_t digit) {
if (col < 32) {
map_buffer[(uint16_t)row * 32 + col] = (uint8_t)(digit + ('0' - ' '));
}
}
/**
* Loop Principale di Aggiornamento del Gioco (chiamato ad ogni Frame ~60 FPS).
* Questo metodo funge da "Direttore d'Orchestra", delegando i compiti ai moduli specializzati.
@@ -232,26 +212,7 @@ void engine_update(uint8_t keys, uint8_t prev_keys) {
if (hint_active) {
if (!hint_displayed) {
hint_displayed = 1;
HIDE_SPRITES;
font_init();
font_t hint_font = font_load(font_ibm);
font_set(hint_font);
BGP_REG = 0x1B; // palette invertita (sfondo nero, testo chiaro)
memset(map_buffer, 0, sizeof(map_buffer));
ending_puttext(3, 2, "A SCREAM FROM");
ending_puttext(6, 3, "THE DARK");
ending_puttext(3, 5, "FIND THE HATCH");
ending_puttext(4, 8, "DPAD WALK");
ending_puttext(2, 9, "A JUMP ABYSS");
ending_puttext(2, 10, "B RUN");
ending_puttext(2, 12, "PRESS B START");
ending_puttext(4, 14, "SELECT HELP");
// Usa il WINDOW layer (tile map separato a 0x9C00) per il testo:
// il BG map del gameplay (0x9800) resta intatto -> niente garbage
// quando si chiude l'hint. move_win(7,0) allinea a sinistra (-7 offset).
set_win_tiles(0, 0, 32, 32, map_buffer);
move_win(7, 0);
SHOW_WIN;
show_instructions();
}
// B chiude la schermata e riprende il gioco
if ((keys & J_B) && !(prev_keys & J_B)) {
@@ -287,58 +248,11 @@ void engine_update(uint8_t keys, uint8_t prev_keys) {
// Quando scade il timer drammatico...
if (game_over_timer == 0) {
if (game_over == 1) {
// Sconfitta: schermata testuale a tutto schermo (font IBM).
// (Era l'immagine claimed.png, sostituita con testo per ridurre
// l'occupazione ROM e fare spazio alla schermata istruzioni.)
HIDE_SPRITES;
SCX_REG = 0;
SCY_REG = 0;
BGP_REG = 0x1B; // palette invertita (sfondo nero, testo chiaro)
font_init();
font_t dead_font = font_load(font_ibm);
font_set(dead_font);
memset(map_buffer, 0, sizeof(map_buffer));
ending_puttext(5, 3, "YOU DIED");
ending_puttext(2, 5, "THE DARK CLAIMS");
ending_puttext(5, 6, "ANOTHER");
ending_puttext(2, 9, "JUST ANOTHER SCREAM");
ending_puttext(3, 10, "FROM THE DARK.");
ending_puttext(5, 14, "GAME OVER");
set_bkg_tiles(0, 0, 32, 32, map_buffer);
show_death();
} else if (game_over == 2) {
// Going Deeper: schermata di transizione testuale (font IBM).
// (Era un'immagine, sostituita con testo per ridurre l'occupazione ROM
// e fare spazio alla schermata istruzioni.)
HIDE_SPRITES;
SCX_REG = 0;
SCY_REG = 0;
font_init();
font_t gd_font = font_load(font_ibm);
font_set(gd_font);
memset(map_buffer, 0, sizeof(map_buffer));
ending_puttext(2, 7, "GOING DEEPER");
ending_puttext(3, 9, "LEVEL");
ending_putdigit(9, 9, (uint8_t)(level + 1));
set_bkg_tiles(0, 0, 32, 32, map_buffer);
show_going_deeper();
} else if (game_over == 3) {
// FINALE TRAGICO: livello 8 superato, ma non e' una fuga. La traccia
// si e' esaurita, sei intrappolato. Sfondo nero (BGP invertito) + testo
// chiaro col font IBM (ricaricato: il gameplay lo aveva sovrascritto).
HIDE_SPRITES;
SCX_REG = 0;
SCY_REG = 0;
BGP_REG = 0x1B; // palette invertita: sfondo nero, testo chiaro
font_init();
font_t end_font = font_load(font_ibm);
font_set(end_font);
memset(map_buffer, 0, sizeof(map_buffer)); // tile 0 = spazio
ending_puttext(3, 4, "YOUR TORCH HAS");
ending_puttext(6, 5, "RUN OUT,");
ending_puttext(2, 7, "YOU ARE TRAPPED.");
ending_puttext(0, 10, "JUST ANOTHER SCREAM");
ending_puttext(3, 11, "FROM THE DARK.");
ending_puttext(5, 14, "GAME OVER");
set_bkg_tiles(0, 0, 32, 32, map_buffer);
show_finale();
}
// Imposta i timer audio per far iniziare la musica finale dal modulo sound.c
src/screens/death.c
+22
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@@ -0,0 +1,22 @@
#include "screens.h"
#include "../globals.h"
#include <string.h>
// Schermata di sconfitta (game_over == 1: il buio ti reclama)
void show_death(void) {
HIDE_SPRITES;
SCX_REG = 0;
SCY_REG = 0;
BGP_REG = 0x1B; // palette invertita (sfondo nero, testo chiaro)
font_init();
font_t dead_font = font_load(font_ibm);
font_set(dead_font);
memset(map_buffer, 0, sizeof(map_buffer));
ending_puttext(5, 3, "YOU DIED");
ending_puttext(2, 5, "THE DARK CLAIMS");
ending_puttext(5, 6, "ANOTHER");
ending_puttext(2, 9, "JUST ANOTHER SCREAM");
ending_puttext(3, 10, "FROM THE DARK.");
ending_puttext(5, 14, "GAME OVER");
set_bkg_tiles(0, 0, 32, 32, map_buffer);
}
src/screens/finale.c
+23
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@@ -0,0 +1,23 @@
#include "screens.h"
#include "../globals.h"
#include <string.h>
// Schermata del finale tragico (game_over == 3: la torcia si e' spenta).
// SPOILER: il testo e' in questo file (non nella documentazione).
void show_finale(void) {
HIDE_SPRITES;
SCX_REG = 0;
SCY_REG = 0;
BGP_REG = 0x1B; // palette invertita: sfondo nero, testo chiaro
font_init();
font_t end_font = font_load(font_ibm);
font_set(end_font);
memset(map_buffer, 0, sizeof(map_buffer));
ending_puttext(3, 4, "YOUR TORCH HAS");
ending_puttext(6, 5, "RUN OUT,");
ending_puttext(2, 7, "YOU ARE TRAPPED.");
ending_puttext(0, 10, "JUST ANOTHER SCREAM");
ending_puttext(3, 11, "FROM THE DARK.");
ending_puttext(5, 14, "GAME OVER");
set_bkg_tiles(0, 0, 32, 32, map_buffer);
}
src/screens/going_deeper.c
+18
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@@ -0,0 +1,18 @@
#include "screens.h"
#include "../globals.h"
#include <string.h>
// Schermata di transizione livello (game_over == 2: Going Deeper)
void show_going_deeper(void) {
HIDE_SPRITES;
SCX_REG = 0;
SCY_REG = 0;
font_init();
font_t gd_font = font_load(font_ibm);
font_set(gd_font);
memset(map_buffer, 0, sizeof(map_buffer));
ending_puttext(2, 7, "GOING DEEPER");
ending_puttext(3, 9, "LEVEL");
ending_putdigit(9, 9, (uint8_t)(level + 1));
set_bkg_tiles(0, 0, 32, 32, map_buffer);
}
src/screens/instructions.c
+24
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@@ -0,0 +1,24 @@
#include "screens.h"
#include "../globals.h"
#include <string.h>
// Schermata istruzioni (livello 1 / SELECT). Usa il Window layer:
// il BG map del gameplay resta intatto -> niente garbage alla chiusura.
void show_instructions(void) {
HIDE_SPRITES;
font_init();
font_t hint_font = font_load(font_ibm);
font_set(hint_font);
BGP_REG = 0x1B; // palette invertita (sfondo nero, testo chiaro)
memset(map_buffer, 0, sizeof(map_buffer));
ending_puttext(3, 2, "FIND THE HATCH");
ending_puttext(4, 8, "DPAD WALK");
ending_puttext(2, 9, "A + DPAD JUMP");
ending_puttext(2, 10, "B + DPAD RUN");
ending_puttext(2, 12, "PRESS B TO CONTINUE");
// Window layer: tile map separato (0x9C00) dal BG (0x9800)
set_win_tiles(0, 0, 32, 32, map_buffer);
move_win(7, 0); // -7 pixel offset: allinea a sinistra
SHOW_WIN;
}
src/screens/screens.c
+24
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@@ -0,0 +1,24 @@
#include "screens.h"
#include "../globals.h"
#include <string.h>
/**
* Helper condivisi per scrivere testo nel map_buffer usando gli indici
* tile del font IBM (tile = ASCII - 32, il font parte dallo spazio).
*/
void ending_puttext(uint8_t col, uint8_t row, const char *s) {
uint8_t i = 0;
while (s[i]) {
if (col + i < 32) {
map_buffer[(uint16_t)row * 32 + col + i] = (uint8_t)(s[i] - ' ');
}
i++;
}
}
void ending_putdigit(uint8_t col, uint8_t row, uint8_t digit) {
if (col < 32) {
map_buffer[(uint16_t)row * 32 + col] = (uint8_t)(digit + ('0' - ' '));
}
}
src/screens/screens.h
+33
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@@ -0,0 +1,33 @@
#ifndef SCREENS_H
#define SCREENS_H
#include <gb/gb.h>
#include <gbdk/font.h>
#include <stdint.h>
/**
* Schermate testuali (font IBM, palette invertita 0x1B = sfondo nero).
* Ogni funzione renderizza la propria schermata nel map_buffer e la
* flusha sulla BG map (o Window per l'hint). Il chiamante gestisce
* BGP, font_init/font_load, HIDE/SHOW_SPRITES e il ripristino dei tile.
*/
// Schermata del titolo ( chiamata da title_init )
// Schermata istruzioni (livello 1 / SELECT). Usa il Window layer.
void show_instructions(void);
// Schermata di sconfitta (game_over == 1)
void show_death(void);
// Schermata di transizione livello (game_over == 2)
void show_going_deeper(void);
// Schermata del finale tragico (game_over == 3)
void show_finale(void);
// Helper condivisi (definiti in screens.c)
void ending_puttext(uint8_t col, uint8_t row, const char *s);
void ending_putdigit(uint8_t col, uint8_t row, uint8_t digit);
#endif