From a50b3820e29af6d12b86c55afb8be1aee9091558 Mon Sep 17 00:00:00 2001
From: Ian C <ianc@noddybox.co.uk>
Date: Mon, 9 Oct 2006 00:32:14 +0000
Subject: Working version with a few games included

---
 source/tapes.c | 175 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 175 insertions(+)
 create mode 100644 source/tapes.c

(limited to 'source/tapes.c')

diff --git a/source/tapes.c b/source/tapes.c
new file mode 100644
index 0000000..adac3b6
--- /dev/null
+++ b/source/tapes.c
@@ -0,0 +1,175 @@
+/*
+   ds81 - Nintendo DS ZX81 emulator.
+
+   Copyright (C) 2006  Ian Cowburn
+   
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 2
+   of the License, or (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+  
+   $Id$
+*/
+
+#include <nds.h>
+
+#include "tapes.h"
+#include "framebuffer.h"
+#include "zx81.h"
+
+#include "maze_bin.h"
+#include "maze_inlay_bin.h"
+#include "cpatrol_bin.h"
+#include "cpatrol_inlay_bin.h"
+#include "sabotage_bin.h"
+#include "sabotage_inlay_bin.h"
+
+
+/* ---------------------------------------- STATIC DATA
+*/
+typedef struct
+{
+    const u8	*tape;
+    const u32	*tape_len;
+    sImage	img;
+    void	*source_pcx;
+    const char	*text;
+} Tape;
+
+#define NO_TAPES	3
+
+static Tape	tapes[NO_TAPES]=
+		{
+		    {
+		    	maze_bin,
+			&maze_bin_size,
+			{0},
+			maze_inlay_bin,
+			"%3d monster maze%\n"
+			"(c) 1983 Malcom E. Evans\n\n"
+			"Escape the maze and its T-Rex\n"
+			"\n\n"
+			"%note% when the screen goes grey\n"
+			"for 30-60 seconds this is not a\n"
+			"problem, and is the game creating\n"
+			"the lair of rex."
+		    },
+		    {
+		    	cpatrol_bin,
+			&cpatrol_bin_size,
+			{0},
+			cpatrol_inlay_bin,
+			"%city patrol%\n"
+			"(c) 1982 Don Priestley\n\n"
+			"Defend the city from the aliens.\n\n"
+			"yes - that parallax city was\n"
+			"done with a text mode and the\n"
+			"equivalent of a 0.8mhz z80"
+		    },
+		    {
+		    	sabotage_bin,
+			&sabotage_bin_size,
+			{0},
+			sabotage_inlay_bin,
+			"%sabotage%\n"
+			"(c) 1982 Don Priestley\n\n"
+			"Destroy the boxes before the\n"
+			"guard finds you.\n\n"
+			"or find the saboteur as the\n"
+			"guard.\n\n"
+			"while this game may not feature\n"
+			"the dazzling graphics of other\n"
+			"ZX81 games it more than makes\n"
+			"up with a simply joyous\n"
+			"gameplay mechanic.\n"
+		    }
+		};
+
+
+static int	current=0;
+
+/* ---------------------------------------- PRIVATE INTERFACES
+*/
+static void InitTapes(void)
+{
+    static int init=FALSE;
+    int f;
+
+    if (init)
+    {
+    	return;
+    }
+
+    init=TRUE;
+
+    for(f=0;f<NO_TAPES;f++)
+    {
+    	loadPCX(tapes[f].source_pcx,&tapes[f].img);
+	image8to16(&tapes[f].img);
+    }
+}
+
+static void DisplayTape(Tape *t)
+{
+    FB_Clear();
+    FB_Blit(&t->img,255-t->img.width,0);
+
+    FB_Print("LEFT/RIGHT",0,0,FB_RGB(255,255,255),-1);
+    FB_Print("to choose",0,10,FB_RGB(255,255,255),-1);
+    FB_Print("A to select",0,30,FB_RGB(255,255,255),-1);
+    FB_Print("B to cancel",0,40,FB_RGB(255,255,255),-1);
+
+    ZX81DisplayString(t->text);
+}
+
+/* ---------------------------------------- PUBLIC INTERFACES
+*/
+void SelectTape(void)
+{
+    int done=FALSE;
+
+    InitTapes();
+
+    while(!done)
+    {
+	uint32 key=0;
+
+    	DisplayTape(tapes+current);
+
+        do
+        {
+            swiWaitForVBlank();
+        } while(!(key=keysDownRepeat()));
+
+	if (key & KEY_LEFT)
+	{
+	    if (--current<0)
+	    {
+	    	current=NO_TAPES-1;
+	    }
+	}
+	else if (key & KEY_RIGHT)
+	{
+	    current=(current+1)%NO_TAPES;
+	}
+	else if (key & KEY_A)
+	{
+	    done=TRUE;
+	    ZX81SetTape(tapes[current].tape,*tapes[current].tape_len);
+	}
+	else if (key & KEY_B)
+	{
+	    done=TRUE;
+	}
+    }
+}
+
-- 
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