[WIP] XRacer - a racing gamexracer

Plan:
-----

A simple racing game like Pole Position or Enduro.

Status:
-------
 - Currently generates a random road and scrolls through it
 - Random road generation (curves and hills)
 - Supports loading of maps from a file ("/output.xrm")
 - Sample map at http://a.pomf.se/ynhlwq.xrm

Todo:
-----
 - Convert to fixed-point math in all places (only one place left!)
 - Improve/fix track looping
 - Improve random road generation to start and end at the same height
 - Finish sprite code
 - Make sprites
 - Game-ify!

What's new:
-----------
 - NEW: uses greylib on low-depth targets!
 - Loadable maps implemented, UNTESTED!
 - Sprites in progress (see render() in graphics.c)

Change-Id: Ia2ff60b3c43d9f2e3a4f63e0ad90d2cb571c605e

1 files changed, 69 insertions, 0 deletions

diff --git a/apps/plugins/xracer/xracer.h b/apps/plugins/xracer/xracer.h
new file mode 100644
index 0000000..967f948
--- /dev/null
+++ b/apps/plugins/xracer/xracer.h
@@ -0,0 +1,69 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2015 Franklin Wei
+ *
+ * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+
+#ifndef _XRACER_H_
+#define _XRACER_H_
+
+/* miscellaneous #defines and data types */
+
+#include "plugin.h"
+
+/* colors */
+#define SKY_COLOR1 LCD_RGBPACK(0, 0x96, 0xff) /* top of sky gradient */
+#define SKY_COLOR2 LCD_RGBPACK(0xfe, 0xfe, 0xfe) /* bottom of sky gradient */
+#define GRASS_COLOR1 LCD_RGBPACK(0, 0xc5, 0)
+#define GRASS_COLOR2 LCD_RGBPACK(0, 0x9a, 0)
+#define ROAD_COLOR1 LCD_RGBPACK(120, 120, 120)
+#define ROAD_COLOR2 LCD_RGBPACK(80, 80, 80)
+#define BORDER_COLOR1 LCD_RGBPACK(240, 0, 0)
+#define BORDER_COLOR2 LCD_RGBPACK(240, 240, 240)
+#define LANE_COLOR LCD_RGBPACK(0xcc, 0xcc, 0xcc)
+
+/* road parameters */
+#define ROAD_WIDTH (LCD_WIDTH/2) /* actually half the road width for easier math */
+#define MAX_ROAD_LENGTH 4096
+#define SEGMENT_LENGTH (LCD_WIDTH * 12)
+
+/* road generator parameters */
+#define HILLS true
+#define CURVES true
+
+/* this specifies the length of each road and border color in segments */
+#define RUMBLE_LENGTH 3
+#define LANES 3
+
+/* camera parameters */
+#define DRAW_DIST 512
+#define CAMERA_FOV 120 /* in degrees */
+#define CAMERA_HEIGHT 100
+
+/* game parameters */
+/* currently this is how far the camera moves per keypress */
+#define MANUAL_SPEED 50
+
+/* number of bits to use for the fractional part of fixed-point numbers */
+/* note that FOV calculation always uses 14 by default */
+#define FRACBITS 8
+
+/* the number of fractional bits to use for high-precision numbers */
+#define HIPREC_FRACBITS 24
+
+#endif