From 2682bc5d1d864341aaeb42a449db73c3ecd16d70 Mon Sep 17 00:00:00 2001
From: "Juan J. Martinez" <jjm@usebox.net>
Date: Wed, 30 Dec 2020 19:07:31 +0000
Subject: Initial import

---
 game/src/main.c | 143 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 game/src/main.c

(limited to 'game/src/main.c')

diff --git a/game/src/main.c b/game/src/main.c
new file mode 100644
index 0000000..1405356
--- /dev/null
+++ b/game/src/main.c
@@ -0,0 +1,143 @@
+#include <stdint.h>
+
+#include "ubox.h"
+#include "mplayer.h"
+
+#include "aux.h"
+#include "game.h"
+
+#define LOCAL
+#include "main.h"
+
+// generated
+#include "tiles.h"
+
+void draw_menu()
+{
+    uint8_t i;
+
+    ubox_disable_screen();
+
+    ubox_fill_screen(WHITESPACE_TILE);
+
+    // game logo; starts in tile 32 and it is 10 x 3 tiles
+    for (i = 0; i < 10; ++i)
+    {
+        ubox_put_tile(11 + i, 6, 32 + i);
+        ubox_put_tile(11 + i, 7, 64 + i);
+        ubox_put_tile(11 + i, 8, 96 + i);
+    }
+
+    put_text(11, 11, "PRESS FIRE");
+
+    put_text(7, 2, "UBOX MSX LIB DEMO!");
+    put_text(4, 16, "CODE, GRAPHICS AND SOUND");
+    put_text(8, 17, "JUAN J. MARTINEZ");
+    // 037 is ASCII 31 in octal, our Copyright sign
+    put_text(8, 21, "\0372020 USEBOX.NET");
+
+    ubox_enable_screen();
+}
+
+void draw_end_game()
+{
+    ubox_disable_screen();
+
+    ubox_fill_screen(WHITESPACE_TILE);
+
+    put_text(3, 9, "WELL DONE!");
+    put_text(3, 10, "YOU HAVE FINISHED THE DEMO.");
+    put_text(3, 12, "NOW GO AND MAKE GAMES :)");
+
+    put_text(3, 14, "(PRESS ESC)");
+
+    ubox_enable_screen();
+
+    // wait until ESC is pressed
+    while (1)
+    {
+        if (ubox_read_keys(7) == UBOX_MSX_KEY_ESC)
+            break;
+
+        ubox_wait();
+    }
+}
+
+void draw_game_over()
+{
+    ubox_disable_screen();
+
+    ubox_fill_screen(WHITESPACE_TILE);
+    put_text(11, 10, "GAME  OVER");
+
+    ubox_enable_screen();
+
+    // play game over music
+    mplayer_init(SONG, SONG_GAME_OVER);
+
+    wait_for(128);
+}
+
+void main()
+{
+    //  PAL: 50/2 = 25 FPS
+    // NTSC: 60/2 = 30 FPS
+    ubox_init_isr(2);
+
+    // set screen 2
+    ubox_set_mode(2);
+    // all black
+    ubox_set_colors(1, 1, 1);
+
+    // avoid showing garbage on the screen
+    // while setting up the tiles
+    ubox_disable_screen();
+
+    // upload our tileset
+    ubox_set_tiles(tiles);
+    // and the colour information
+    ubox_set_tiles_colors(tiles_colors);
+
+    // clear the screen
+    ubox_fill_screen(WHITESPACE_TILE);
+
+    ubox_enable_screen();
+
+    // reg 1: activate sprites, v-blank int on, 16x16 sprites
+    ubox_wvdp(1, 0xe2);
+
+    // init the player
+    mplayer_init(SONG, SONG_SILENCE);
+    mplayer_init_effects(EFFECTS);
+
+    // we don't need anything in our ISR
+    // other than the play function, so we
+    // use that!
+    ubox_set_user_isr(mplayer_play);
+
+redraw_menu:
+    draw_menu();
+
+    // whait until fire is pressed
+    // can be space (control will be cursors), or any fire button on a joystick
+    while (1)
+    {
+        ctl = ubox_select_ctl();
+        if (ctl != UBOX_MSX_CTL_NONE)
+        {
+            mplayer_play_effect_p(EFX_START, EFX_CHAN_NO, 0);
+            wait_for(16);
+
+            // play the game
+            run_game();
+
+            if (!lives)
+                draw_game_over();
+            else if (!batteries)
+                draw_end_game();
+
+            goto redraw_menu;
+        }
+        ubox_wait();
+    }
+}
-- 
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