From 020d141995d7b3662e006e866ffe494ffc27204e Mon Sep 17 00:00:00 2001
From: schneider <schneider@blinkenlichts.net>
Date: Thu, 5 Jan 2012 16:31:58 +0100
Subject: [PATCH] added jeopardy game announcing l0dable

---
 firmware/l0dable/jeopardy.c | 148 ++++++++++++++++++++++++++++++++++++
 1 file changed, 148 insertions(+)
 create mode 100644 firmware/l0dable/jeopardy.c

diff --git a/firmware/l0dable/jeopardy.c b/firmware/l0dable/jeopardy.c
new file mode 100644
index 0000000..c3b31d1
--- /dev/null
+++ b/firmware/l0dable/jeopardy.c
@@ -0,0 +1,148 @@
+#include <sysinit.h>
+
+#include "basic/basic.h"
+#include "basic/byteorder.h"
+#include "lcd/lcd.h"
+#include "lcd/print.h"
+#include "funk/nrf24l01p.h"
+#include <string.h>
+#include "basic/random.h"
+#include "basic/config.h"
+#include "usetable.h"
+
+
+//channel and mac used to transmit game announcements
+#define ANNOUNCE_CHANNEL 87
+#define ANNOUNCE_MAC     "REM0T"
+
+struct NRF_CFG config;
+
+struct packet{
+    uint8_t len;
+    uint8_t protocol;
+    uint8_t command;
+    uint32_t id;
+    uint32_t ctr;
+    
+    //union with 19 bytes data
+    union content{
+        struct button{
+            uint8_t button;
+            uint8_t reserved[18];
+        }__attribute__((packed)) button;
+        struct text{
+            uint8_t x;
+            uint8_t y;
+            uint8_t flags;
+            uint8_t text[16];
+        }__attribute__((packed)) text;
+        struct nick{
+            uint8_t flags;
+            uint8_t nick[18];
+        }__attribute__((packed)) nick;
+        struct nickrequest{
+           uint8_t reserved[19];
+        }__attribute__((packed)) nickrequest;
+        struct ack{
+           uint8_t flags;
+           uint8_t reserved[18];
+        }__attribute__((packed)) ack;
+        struct announce{
+           uint8_t gameMac[5];
+           uint8_t gameChannel;
+           //uint8_t playerMac[5]; playerMac = gameMac+1;
+           uint16_t gameId;
+           uint8_t gameFlags;
+           uint8_t interval;
+           uint8_t jitter;
+           uint8_t gameTitle[8];
+        }__attribute__((packed)) announce;
+        struct join{
+           uint16_t gameId;
+           uint8_t reserved[17];
+        }__attribute__((packed)) join;
+    }c;
+    uint16_t crc;
+}__attribute__((packed));
+
+#define FLAGS_MASS_GAME         1
+#define FLAGS_SHORT_PACKET      2
+#define FLAGS_LONG_RECV         4
+
+#define FLAGS_ACK_JOINOK    1
+#define MASS_ID 1
+
+#define FLAGS_CLS               1
+
+/**************************************************************************/
+/* l0dable for playing games which are announced by other r0kets with the l0dabel r_game */
+/* Values of buf[3]:
+ * B: packet sent by player, contain information which button is pressed
+ * T: packet sent by game, contain text for display
+ * N: packet sent by game, requesting nick
+ * n: packet sent player, containing nick
+ * A: packet sent by game, announcing game
+ * J: packet sent by player, requesting to join game
+ * a: ack, packet with $ctr was received
+ */
+
+void setLeft();
+void setRight();
+struct packet a;
+
+void ram(void)
+{
+    int priv = GLOBAL(privacy);
+
+    GLOBAL(privacy) = 3;
+    config.nrmacs=1;
+    config.maclen[0] = 32;
+    config.channel = ANNOUNCE_CHANNEL;
+    memcpy(config.mac0, ANNOUNCE_MAC, 5);
+    memcpy(config.txmac, ANNOUNCE_MAC, 5);
+    nrf_config_set(&config);
+
+    nrf_set_strength(3);
+    int rnd;
+
+   volatile uint16_t i;
+    while( 1 ){
+        delayms(100);
+        i = getRandom()&0xfff; while(i--);
+        setJeopardy();
+        nrf_snd_pkt_crc(sizeof(a),(uint8_t*)&a);
+    }
+    GLOBAL(privacy) = priv;
+};
+
+
+void setJeopardy()
+{
+    a.len = 32;
+    a.protocol = 'G';
+    a.command = 'A';
+    a.id = 0;
+    a.ctr = 1;
+    a.c.announce.gameMac[0] = 'B';
+    a.c.announce.gameMac[1] = 'P';
+    a.c.announce.gameMac[2] = 'O';
+    a.c.announce.gameMac[3] = 'N';
+    a.c.announce.gameMac[4] = 'G';
+
+    a.c.announce.gameChannel = 91;
+    a.c.announce.gameId = 23;
+    a.c.announce.gameFlags = 3;
+
+    a.c.announce.interval = 10;
+    a.c.announce.jitter = 10;
+
+    a.c.announce.gameTitle[0] = 'J';
+    a.c.announce.gameTitle[1] = 'e';
+    a.c.announce.gameTitle[2] = 'o';
+    a.c.announce.gameTitle[3] = 'p';
+    a.c.announce.gameTitle[4] = 'r';
+    a.c.announce.gameTitle[5] = 'd';
+    a.c.announce.gameTitle[6] = 'y';
+    a.c.announce.gameTitle[7] = 0;
+}
+