added xrick game

original xrick code by 'BigOrno' at:
http://www.bigorno.net/xrick/

Rockbox port, plus bugfixes at:
https://github.com/pierluigi-vicinanza/xrick

Further changes:

 * Additonal fixes from g#3026
 * Port to modern plugin API
 * Add Pluginlib keymap fallback
 * Support all >1bpp screens
 * Fix build warnings in miniz
 * Better error message when resources are missing

Change-Id: Id83928bc2539901b0221692f65cbca41389c58e7

apps/plugins/xrick/e_sbonus.c

@@ -0,0 +1,88 @@
+/*
+ * xrick/e_sbonus.c
+ *
+ * Copyright (C) 1998-2002 BigOrno (bigorno@bigorno.net).
+ * Copyright (C) 2008-2014 Pierluigi Vicinanza.
+ * All rights reserved.
+ *
+ * The use and distribution terms for this software are contained in the file
+ * named README, which can be found in the root of this distribution. By
+ * using this software in any fashion, you are agreeing to be bound by the
+ * terms of this license.
+ *
+ * You must not remove this notice, or any other, from this software.
+ */
+
+#include "xrick/e_sbonus.h"
+
+#include "xrick/game.h"
+#include "xrick/ents.h"
+#include "xrick/util.h"
+#include "xrick/maps.h"
+#include "xrick/e_rick.h"
+
+
+/*
+ * public vars
+ */
+bool e_sbonus_counting = false;
+U8 e_sbonus_counter = 0;
+U16 e_sbonus_bonus = 0;
+
+
+/*
+ * Entity action / start counting
+ *
+ * ASM 2182
+ */
+void
+e_sbonus_start(U8 e)
+{
+    ent_ents[e].sprite = 0; /* invisible */
+    if (u_trigbox(e, ENT_XRICK.x + 0x0C, ENT_XRICK.y + 0x0A)) {
+        /* rick is within trigger box */
+        ent_ents[e].n = 0;
+        e_sbonus_counting = true;  /* 6DD5 */
+        e_sbonus_counter = 0x1e;  /* 6DDB */
+        e_sbonus_bonus = 2000;    /* 291A-291D */
+#ifdef ENABLE_SOUND
+        syssnd_play(soundSbonus1, 1);
+#endif
+    }
+}
+
+
+/*
+ * Entity action / stop counting
+ *
+ * ASM 2143
+ */
+void
+e_sbonus_stop(U8 e)
+{
+    ent_ents[e].sprite = 0; /* invisible */
+
+    if (!e_sbonus_counting)
+        return;
+
+    if (u_trigbox(e, ENT_XRICK.x + 0x0C, ENT_XRICK.y + 0x0A)) {
+        /* rick is within trigger box */
+        e_sbonus_counting = false;  /* stop counting */
+        ent_ents[e].n = 0;  /* deactivate entity */
+        game_score += e_sbonus_bonus;  /* add bonus to score */
+#ifdef ENABLE_SOUND
+        syssnd_play(soundSbonus2, 1);
+#endif
+        /* make sure the entity won't be activated again */
+        map_marks[ent_ents[e].mark].ent |= MAP_MARK_NACT;
+    }
+    else {
+        /* keep counting */
+        if (--e_sbonus_counter == 0) {
+            e_sbonus_counter = 0x1e;
+            if (e_sbonus_bonus) e_sbonus_bonus--;
+        }
+    }
+}
+
+/* eof */