142 lines
5.6 KiB
C
142 lines
5.6 KiB
C
/****************************************************************************
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* apps/graphics/traveler/include/trv_plane.h
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* This file contains definitions for the world planes
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*
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_PLANE_H
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#define __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_PLANE_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "trv_types.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* These are bit-field definitions for the struct trv_rect_data_s attribute field
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* STATIC settings
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*/
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#define SHADED_PLANE 0x01
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#define TRANSPARENT_PLANE 0x02
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#define DOOR_PLANE 0x04
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/* DYNAMIC settings */
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#define OPEN_DOOR_PLANE 0x08
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#define MOVING_DOOR_PLANE 0x10
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/* Legal values of texture scaling in struct trv_rect_data_s */
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#define ONEX_SCALING 0
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#define TW0X_SCALING 1
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#define FOURX_SCALING 2
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#define MAXX_SCALING 2
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/* These macros are used to test the various texture attributes */
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#define IS_NORMAL(r) (((r)->attribute & ~SHADED_PLANE) == 0)
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#define IS_SHADED(r) (((r)->attribute & SHADED_PLANE) != 0)
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#define IS_TRANSPARENT(r) (((r)->attribute & TRANSPARENT_PLANE) != 0)
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#define IS_DOOR(r) (((r)->attribute & DOOR_PLANE) != 0)
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#define IS_OPEN_DOOR(r) (((r)->attribute & OPEN_DOOR_PLANE) != 0)
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#define IS_CLOSED_DOOR(r) ((IS_DOOR(R)) && (!IS_OPEN_DOOR(r)))
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#define IS_MOVING_DOOR(r) (((r)->attribute & MOVING_DOOR_PLANE) != 0)
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#define IS_PASSABLE(r) IS_OPEN_DOOR(r)
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/****************************************************************************
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* Public Types
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****************************************************************************/
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typedef uint8_t attrib_t; /* Max attributes = 8 */
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struct trv_rect_data_s
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{
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trv_coord_t plane; /* defines the plane that the rect lies in */
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trv_coord_t hstart; /* defines the starting "horizontal" position */
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trv_coord_t hend; /* defines the ending "horizontal" position */
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trv_coord_t vstart; /* defines the starting "vertical" position */
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trv_coord_t vend; /* defines the ending "vertical" position */
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attrib_t attribute; /* bit-encoded attributes of the plane */
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uint8_t texture; /* defines the texture that should be applied */
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uint8_t scale; /* defines the scaling of the texture */
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};
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#define RESIZEOF_TRVRECTDATA_T 13
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struct trv_rect_list_s
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{
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struct trv_rect_list_s *flink; /* points at next rectangle in a list */
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struct trv_rect_list_s *blink; /* points at previous rectangle in a list */
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struct trv_rect_data_s d; /* the data which defines the rectangle */
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};
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struct trv_rect_head_s
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{
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struct trv_rect_list_s *head; /* points to the start of the list */
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struct trv_rect_list_s *tail; /* points to the end of the list */
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};
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struct trv_planefile_header_s
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{
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uint16_t nxrects;
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uint16_t nyrects;
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uint16_t nzrects;
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};
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#define SIZEOF_TRVPLANEFILEHEADER_T 6
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/* The is the world!!! The world is described by lists of rectangles, one
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* for each of the X, Y, and Z planes.
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*/
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extern struct trv_rect_head_s g_xplane; /* list of X=plane rectangles */
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extern struct trv_rect_head_s g_yplane; /* list of Y=plane rectangles */
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extern struct trv_rect_head_s g_zplane; /* list of Z=plane rectangles */
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/* "Deallocated" planes are retained in a free list */
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extern struct trv_rect_list_s *g_rect_freelist;
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#endif /* __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_PLANE_H */
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