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source: orxonox.OLD/trunk/src/lib/graphics/importer/height_map.cc @ 6464

Last change on this file since 6464 was 6100, checked in by bensch, 19 years ago

orxonox/trunk: copied the heightMap to the trunk, and adapted to partly new framework

  • Property svn:executable set to *
File size: 3.1 KB
Line 
1/*
2   orxonox - the future of 3D-vertical-scrollers
3
4   Copyright (C) 2004 orx
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 2, or (at your option)
9   any later version.
10
11   ### File Specific:
12   main-programmer:
13*/
14
15#include "height_map.h"
16#include "model.h"
17#include "texture.h"
18#include "vector.h"
19
20#include "debug.h"
21
22// INCLUDING SDL_Image
23#ifdef HAVE_SDL_IMAGE_H
24#include <SDL_image.h>
25#else
26#include <SDL/SDL_image.h>
27#endif
28
29HeightMap::HeightMap() : StaticModel()
30{
31       
32}
33
34HeightMap::HeightMap(const char* height_map_name = NULL) : StaticModel()
35{
36   this->setClassID(CL_HEIGHT_MAP, "HeightMap");
37   heightMap =  IMG_Load(height_map_name);
38   if(heightMap!=NULL) {
39       
40                 PRINTF(0)("loading Image %s\n", height_map_name);
41                 PRINTF(0)("width : %i\n", heightMap->w);
42                 PRINTF(0)("hight : %i\n", heightMap->h);
43                 PRINTF(0)("%i Byte(s) per Pixel \n", heightMap->format->BytesPerPixel);
44                 PRINTF(0)("Rshift : %i\n", heightMap->format->Rshift);
45                 PRINTF(0)("Bshift: %i\n", heightMap->format->Bshift);
46                 PRINTF(0)("Gshift: %i\n", heightMap->format->Gshift);
47                 PRINTF(0)("Rmask: %i\n", heightMap->format->Rmask);
48                 PRINTF(0)("Gmask: %i\n", heightMap->format->Gmask);           
49                }
50                 
51     else       PRINTF(4)("oops! couldn't load %s for some reason.\n", height_map_name);
52}
53
54
55HeightMap::~HeightMap()
56{
57        delete heightMap;
58}
59
60void HeightMap::load()
61{
62 unsigned char height = 0; 
63 int offset = 0;
64
65 char *  bmp = (char*) heightMap->pixels;
66
67  if(heightMap != NULL && heightMap->format->BitsPerPixel == 8 )
68        {
69        SDL_LockSurface(heightMap);
70        for(int i = 0 ; i < heightMap->; i +=2)
71        {
72            for(int j = 0; j < heightMap->w   ;  j += 2)
73            {
74                // get local hight from heightMap
75                // This seems to work only on 8-Bit Grayscale-Bitmaps
76                height = bmp[j + i*(heightMap->w )];
77               
78                       
79                /*height = heightMap->format->palette->colors[offset].r +
80                           heightMap->format->palette->colors[offset].g +
81                           heightMap->format->palette->colors[offset].b ; */
82                                       
83                               
84                this->addVertex( 20*(heightMap->h - i) , (( (double)height)/0.3)-1200  ,20*j);
85             } 
86        }
87        SDL_UnlockSurface(heightMap);
88
89
90
91        int c = (heightMap->w)/2 ; // One line
92        for(int i = 0; i < (heightMap->w)/2  -2  ; i ++)
93        {
94            for(int j = 0; j < (heightMap->h)/2 - 2; j++)
95            {
96                 
97                /* Two Triangles or ...*/ 
98               
99                //this->addFace (3, VERTEX_ONLY,j + (i+1)*c,j+1+i*c , j + i*c );
100                //this->addFace (3, VERTEX_ONLY,j + (i+1)*c,j + (i+1)*c +1 ,j+i*c +1 );                         
101                                 
102                /* ... one square*/
103
104                this->addFace (4 ,VERTEX_ONLY,j+i*c,j+(i+1)*,j + (i+1)*c +1, j +i*c+1 );
105            }
106                               
107                       
108                               
109        }
110               
111
112        }//if
113  else
114        { 
115
116  //make a cube
117  this->setName("HardCore");
118  this->addVertex (-0.5, -0.5, 0.5);
119  this->addVertex (0.5, -0.5, 0.5);
120  this->addVertex (-0.5, 0.5, 0.5);
121  this->addVertex (0.5, 0.5, 0.5);
122  this->addVertex (-0.5, 0.5, -0.5);
123  this->addVertex (0.5, 0.5, -0.5);
124  this->addVertex (-0.5, -0.5, -0.5);
125  this->addVertex (0.5, -0.5, -0.5);
126       
127
128
129
130  this->addFace (3, VERTEX_ONLY, 4, 3, 2);
131
132        }
133      this->finalize();
134
135
136}
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