3 files changed, 105 insertions, 4 deletions
diff --git a/apps/graphics/traveler/include/trv_input.h b/apps/graphics/traveler/include/trv_input.h
index 1c2e7e724..9650089cf 100644
--- a/apps/graphics/traveler/include/trv_input.h
+++ b/apps/graphics/traveler/include/trv_input.h
@@ -46,20 +46,25 @@
  * Pre-processor Definitions
  ****************************************************************************/
 
+/* Number of units player moves forward or backward. */
+
+#define STEP_DISTANCE 15
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
 struct trv_input_s
 {
   int16_t fwdrate;    /* Forward motion rate.  Negative is backward */
   int16_t leftrate;   /* Left motion rate.  Negative is right */
   int16_t yawrate;    /* Yaw turn rate.  Positive is to the left */
   int16_t pitchrate;  /* Pitch turn rate.  Positive is upward */
+  int16_t stepheight; /* Size a a vertical step, if applicable */
   bool    dooropen;   /* True: Open a door */
 };
 
 /****************************************************************************
- * Public Types
- ****************************************************************************/
-
-/****************************************************************************
  * Public Data
  ****************************************************************************/
 
diff --git a/apps/graphics/traveler/include/trv_trigtbl.h b/apps/graphics/traveler/include/trv_trigtbl.h
new file mode 100644
index 000000000..2b73647c2
--- /dev/null
+++ b/apps/graphics/traveler/include/trv_trigtbl.h
@@ -0,0 +1,75 @@
+/****************************************************************************
+ * apps/graphics/traveler/include/trv_trigtbl.h
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_TRIGTBL_H
+#define __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_TRIGTBL_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include "trv_types.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* These are definitions of commonly used angles. */
+
+#define TWOPI       1920
+#define PI           960
+#define HALFPI       480
+#define QTRPI        240
+
+/* Here are definitions for those who prefer degrees */
+/* NOTE:  ANGLE_60 and ANGLE_30 are special values.  They were */
+/* chosen to match the horizontal screen resolution of 320 pixels. */
+/* These, in fact, drive the entire angular measurement system */
+
+#define ANGLE_0        0
+#define ANGLE_6       32
+#define ANGLE_9       48
+#define ANGLE_30     160
+#define ANGLE_60     320
+#define ANGLE_90     480
+#define ANGLE_180    960
+#define ANGLE_270   1440
+#define ANGLE_360   1920
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#endif /* __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_TRIGTBL_H */
diff --git a/apps/graphics/traveler/include/trv_world.h b/apps/graphics/traveler/include/trv_world.h
index 939ec1820..3461fd792 100644
--- a/apps/graphics/traveler/include/trv_world.h
+++ b/apps/graphics/traveler/include/trv_world.h
@@ -60,6 +60,27 @@ struct trv_camera_s
 };
 
 /****************************************************************************
+ * Public Data
+ ****************************************************************************/
+/* This is the starting position and orientation of the camera in the world */
+
+extern struct trv_camera_s g_initial_camera;
+
+/* This is the height of player (distance from the camera Z position to
+ * the position of the player's "feet"
+ */
+
+extern trv_coord_t g_player_height;
+
+/* This is size of something that the player can step over when "walking" */
+
+extern trv_coord_t g_walk_stepheight;
+
+/* This is size of something that the player can step over when "running" */
+
+extern trv_coord_t g_run_stepheight;
+
+/****************************************************************************
  * Public Function Prototypes
  ****************************************************************************/