192 lines
7.1 KiB
C
192 lines
7.1 KiB
C
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/****************************************************************************
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* apps/graphics/traveler/tools/libwld/wld_plane.h
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* This file contains definitions for the world planes
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*
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* Copyright (C) 2016 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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/*************************************************************************
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* FILE: wld_plane.h
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*************************************************************************/
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#ifndef __APPS_GRAPHICS_TRAVELER_TOOSL_LIBWLD_WLD_PLANE_H
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#define ___APPS_GRAPHICS_TRAVELER_TOOSL_LIBWLD_WLD_PLANE_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif /* __cplusplus */
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/*************************************************************************
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* Included Files
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*************************************************************************/
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#include <stdio.h>
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/*************************************************************************
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* Pre-processor Definitions
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*************************************************************************/
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/* Return codes */
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enum
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{
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PLANE_SUCCESS = 0,
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PLANE_ALLOCATION_FAILURE = 1,
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PLANE_READ_OPEN_ERROR,
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PLANE_WRITE_OPEN_ERROR,
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PLANE_HEADER_READ_ERROR,
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PLANE_DATA_READ_ERROR,
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PLANE_HEADER_WRITE_ERROR,
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PLANE_DATA_WRITE_ERROR
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};
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/* These are bit-field definitions for the rectDataType 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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/* 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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/* Legal values of texture scaling in rectDataType */
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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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/*************************************************************************
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* Public Type Definitions
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*************************************************************************/
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typedef short coord_t; /* Max world size is +/- 65536/64 = 1024 */
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typedef uint8_t attrib_t; /* Max attributes = 8 */
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typedef struct rectDataStruct
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{
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coord_t plane; /* defines the plane that the rect lies in */
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coord_t hStart; /* defines the starting "horizontal" position */
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coord_t hEnd; /* defines the ending "horizontal" position */
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coord_t vStart; /* defines the starting "vertical" position */
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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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} rectDataType;
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#define SIZEOF_RECTDATATYPE 13
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typedef struct rectListStruct
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{
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struct rectListStruct *flink; /* points at next rectangle in a list */
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struct rectListStruct *blink; /* points at previous rectangle in a list */
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rectDataType d; /* the data which defines the rectangle */
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} rectListType;
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typedef struct
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{
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rectListType *head; /* points to the start of the list */
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rectListType *tail; /* points to the end of the list */
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} rectHeadType;
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typedef struct
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{
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uint16_t numXRects;
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uint16_t numYRects;
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uint16_t numZRects;
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} planeFileHeaderType;
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#define SIZEOF_PLANEFILEHEADERTYPE 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 rectHeadType xPlane; /* list of X=plane rectangles */
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extern rectHeadType yPlane; /* list of Y=plane rectangles */
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extern rectHeadType zPlane; /* list of Z=plane rectangles */
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/* This is the maximum value of a texture code */
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extern uint8_t maxTextureCode;
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/* "Deallocated" planes are retained in a free list */
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extern rectListType *freeList;
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/*************************************************************************
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* Public Function Prototypes
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*************************************************************************/
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extern uint8_t wld_InitializePlanes(void);
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extern void wld_DiscardPlanes(void);
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extern uint8_t wld_LoadPlaneFile(const char *wldfile);
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extern uint8_t wld_LoadPlanes(FILE *fp);
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extern uint8_t wld_SavePlanes(const char *wldFile);
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extern rectListType *wld_NewPlane(void);
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extern void wld_AddPlane(rectListType *rect,
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rectHeadType *list);
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extern void wld_MergePlaneLists(rectHeadType *outList,
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rectHeadType *inList);
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extern void wld_RemovePlane(rectListType *rect,
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rectHeadType *list);
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extern void wld_MovePlane(rectListType *rect,
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rectHeadType *destList,
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rectHeadType *srcList);
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extern rectListType *wld_FindPlane(coord_t h, coord_t v, coord_t plane,
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rectHeadType *list);
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#ifdef __cplusplus
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}
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#endif
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#endif /* ___APPS_GRAPHICS_TRAVELER_TOOSL_LIBWLD_WLD_PLANE_H */
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