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source: orxonox.OLD/trunk/src/lib/graphics/effects/fog_effect.cc @ 8040

Last change on this file since 8040 was 7810, checked in by bensch, 19 years ago

orxonox/trunk: merged the Weather effects back here

File size: 2.4 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: hdavid, amaechler
13*/
14
15#include "fog_effect.h"
16
17#include "util/loading/load_param.h"
18#include "util/loading/factory.h"
19
20#include "glincl.h"
21
22/*#include "shell_command.h"
23SHELL_COMMAND(activateFog, FogEffect, FogEffect::activate)
24        ->setAlias("aFog");
25SHELL_COMMAND(deactivateFog, FogEffect, FogEffect::deactivate)
26        ->setAlias("dFog");*/
27
28using namespace std;
29
30CREATE_FACTORY(FogEffect, CL_FOG_EFFECT);
31
32FogEffect::FogEffect(const TiXmlElement* root)
33{
34        this->setClassID(CL_FOG_EFFECT, "FogEffect");
35
36        this->init();
37
38        if (root != NULL)
39                this->loadParams(root);
40
41        this->activate();
42}
43
44
45FogEffect::~FogEffect()
46{
47        this->deactivate();
48}
49
50
51void FogEffect::loadParams(const TiXmlElement* root)
52{
53        WeatherEffect::loadParams(root);
54
55        LoadParam(root, "mode", this, FogEffect, setFogMode);
56        LoadParam(root, "density", this, FogEffect, setFogDensity);
57        LoadParam(root, "range", this, FogEffect, setFogRange);
58        LoadParam(root, "color", this, FogEffect, setFogColor);
59}
60
61bool FogEffect::init()
62{
63        //default values
64        this->fogMode = GL_EXP2;
65        this->fogDensity = 0.001;
66        this->fogStart = 0;
67        this->fogEnd = 5000;
68  this->colorVector = Vector(0.7, 0.7, 0.7);
69}
70
71
72
73bool FogEffect::activate()
74{
75        PRINTF(0)( "Enabling FogEffect, mode: %i, density: %f, start: %f, end: %f, color %f, %f, %f\n", this->fogMode, this->fogDensity, this->fogStart, this->fogEnd, this->colorVector.x, this->colorVector.y, this->colorVector.z);
76
77        glEnable(GL_FOG);
78        {
79                GLfloat fogColor[4] = { colorVector.x, colorVector.y, colorVector.z, 1.0};
80
81                glFogi(GL_FOG_MODE, this->fogMode);
82                glFogfv(GL_FOG_COLOR, fogColor);
83                glFogf(GL_FOG_DENSITY, this->fogDensity);
84                glHint(GL_FOG_HINT, GL_DONT_CARE);
85                glFogf(GL_FOG_START, this->fogStart);
86                glFogf(GL_FOG_END, this->fogEnd);
87        }
88        glClearColor(0.5, 0.5, 0.5, 1.0);
89}
90
91
92bool FogEffect::deactivate()
93{
94        PRINTF(0)("Deactivating FogEffect\n");
95        glDisable(GL_FOG);
96}
97
98
99GLint FogEffect::stringToFogMode(const std::string& mode)
100{
101        if(mode == "GL_LINEAR")
102                return GL_LINEAR;
103        else if(mode == "GL_EXP")
104                return GL_EXP;
105        else if(mode == "GL_EXP2" )
106                return GL_EXP2;
107        else
108                return -1;
109}
110
111
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