[6741] | 1 | /* |
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[7810] | 2 | orxonox - the future of 3D-vertical-scrollers |
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[6741] | 3 | |
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[7810] | 4 | Copyright (C) 2004 orx |
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[6741] | 5 | |
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[7810] | 6 | This program is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 2, or (at your option) |
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| 9 | any later version. |
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[6741] | 10 | |
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| 11 | ### File Specific: |
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[7810] | 12 | main-programmer: hdavid, amaechler |
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[6741] | 13 | */ |
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| 14 | |
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| 15 | #include "fog_effect.h" |
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| 16 | |
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[7193] | 17 | #include "util/loading/load_param.h" |
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| 18 | #include "util/loading/factory.h" |
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[6741] | 19 | |
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[6772] | 20 | #include "glincl.h" |
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[6741] | 21 | |
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[8255] | 22 | #include "shell_command.h" |
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[6772] | 23 | |
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[8255] | 24 | SHELL_COMMAND(activate, FogEffect, activateFog); |
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| 25 | SHELL_COMMAND(deactivate, FogEffect, deactivateFog); |
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| 26 | SHELL_COMMAND(startfogging, FogEffect, startFogging); |
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| 27 | |
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[6741] | 28 | using namespace std; |
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| 29 | |
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[6772] | 30 | CREATE_FACTORY(FogEffect, CL_FOG_EFFECT); |
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[6741] | 31 | |
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[7810] | 32 | FogEffect::FogEffect(const TiXmlElement* root) |
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[6741] | 33 | { |
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[7810] | 34 | this->setClassID(CL_FOG_EFFECT, "FogEffect"); |
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[6741] | 35 | |
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[7810] | 36 | this->init(); |
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[6772] | 37 | |
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[7810] | 38 | if (root != NULL) |
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| 39 | this->loadParams(root); |
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[7107] | 40 | |
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[8255] | 41 | if (this->fogActivate) |
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| 42 | this->activate(); |
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[6741] | 43 | } |
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| 44 | |
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| 45 | |
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| 46 | FogEffect::~FogEffect() |
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[6980] | 47 | { |
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[7810] | 48 | this->deactivate(); |
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[6980] | 49 | } |
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[6741] | 50 | |
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| 51 | |
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| 52 | void FogEffect::loadParams(const TiXmlElement* root) |
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| 53 | { |
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[7810] | 54 | WeatherEffect::loadParams(root); |
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[6741] | 55 | |
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[7810] | 56 | LoadParam(root, "mode", this, FogEffect, setFogMode); |
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| 57 | LoadParam(root, "density", this, FogEffect, setFogDensity); |
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| 58 | LoadParam(root, "range", this, FogEffect, setFogRange); |
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| 59 | LoadParam(root, "color", this, FogEffect, setFogColor); |
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[8267] | 60 | LoadParam(root, "fadeinduration", this, FogEffect, setFogFadeIn); |
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| 61 | LoadParam(root, "fadeoutduration", this, FogEffect, setFogFadeOut); |
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[8255] | 62 | |
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| 63 | LOAD_PARAM_START_CYCLE(root, element); |
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| 64 | { |
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| 65 | LoadParam_CYCLE(element, "option", this, FogEffect, setFogOption); |
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| 66 | } |
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| 67 | LOAD_PARAM_END_CYCLE(element); |
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[7810] | 68 | } |
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[6772] | 69 | |
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[7810] | 70 | bool FogEffect::init() |
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| 71 | { |
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| 72 | //default values |
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[8255] | 73 | this->fogActivate = false; |
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[8267] | 74 | this->fogFadeInDuration = 0; |
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| 75 | this->fogFadeOutDuration = 0; |
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[8255] | 76 | this->localTimer = 0; |
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| 77 | |
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[8327] | 78 | this->fogMode = GL_LINEAR; |
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| 79 | this->fogDensity = 0.05; |
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[7810] | 80 | this->fogStart = 0; |
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[8327] | 81 | this->fogEnd = 500; |
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| 82 | this->colorVector = Vector(0.3, 0.3, 0.3); |
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[8255] | 83 | |
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[8267] | 84 | return 0; |
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[6741] | 85 | } |
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| 86 | |
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| 87 | |
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| 88 | bool FogEffect::activate() |
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[6752] | 89 | { |
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[7810] | 90 | 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); |
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[6772] | 91 | |
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[8255] | 92 | this->fogActivate = true; |
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| 93 | |
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| 94 | GLfloat fogColor[4] = { colorVector.x, colorVector.y, colorVector.z, 1.0}; |
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| 95 | glFogi(GL_FOG_MODE, this->fogMode); |
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| 96 | glFogfv(GL_FOG_COLOR, fogColor); |
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| 97 | glFogf(GL_FOG_DENSITY, this->fogDensity); |
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| 98 | glHint(GL_FOG_HINT, GL_DONT_CARE); |
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| 99 | glFogf(GL_FOG_START, this->fogStart); |
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| 100 | glFogf(GL_FOG_END, this->fogEnd); |
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| 101 | |
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[7810] | 102 | glEnable(GL_FOG); |
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[8255] | 103 | // glClearColor(0.5, 0.5, 0.5, 1.0); |
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[8267] | 104 | |
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| 105 | return 0; |
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[6752] | 106 | } |
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| 107 | |
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| 108 | |
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[6741] | 109 | bool FogEffect::deactivate() |
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[6772] | 110 | { |
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[7810] | 111 | PRINTF(0)("Deactivating FogEffect\n"); |
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[8255] | 112 | |
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| 113 | this->fogActivate = false; |
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| 114 | |
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[7810] | 115 | glDisable(GL_FOG); |
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[8267] | 116 | |
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| 117 | return 0; |
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[6772] | 118 | } |
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| 119 | |
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[8255] | 120 | void FogEffect::draw() const { |
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[6772] | 121 | |
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[8267] | 122 | if (this->fogFadeInDuration > 0 && this->localTimer < this->fogFadeInDuration) |
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[8255] | 123 | glFogf(GL_FOG_DENSITY, this->fogFadeDensity); |
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| 124 | //else |
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| 125 | // glFogf(GL_FOG_DENSITY, this->fogDensity); |
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| 126 | |
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| 127 | } |
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| 128 | void FogEffect::tick(float dt) |
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| 129 | { |
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| 130 | if (!this->fogActivate) |
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| 131 | return; |
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| 132 | |
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| 133 | |
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[8267] | 134 | if (this->fogFadeInDuration > 0 && this->localTimer < this->fogFadeInDuration) { |
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[8255] | 135 | this->localTimer += dt; |
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[8267] | 136 | float progress = this->localTimer / this->fogFadeInDuration; |
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[8255] | 137 | this->fogFadeDensity = progress * this->fogDensity; |
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| 138 | } |
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| 139 | } |
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| 140 | |
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| 141 | void FogEffect::startFogging() { |
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| 142 | |
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| 143 | if (this->fogActivate) |
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| 144 | this->deactivate(); |
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| 145 | |
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[8267] | 146 | if (!this->fogFadeInDuration > 0) |
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| 147 | this->fogFadeInDuration = 20; |
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| 148 | |
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[8255] | 149 | this->localTimer = 0; |
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| 150 | this->activate(); |
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| 151 | |
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| 152 | } |
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| 153 | |
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| 154 | |
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[7221] | 155 | GLint FogEffect::stringToFogMode(const std::string& mode) |
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[6772] | 156 | { |
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[7810] | 157 | if(mode == "GL_LINEAR") |
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| 158 | return GL_LINEAR; |
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| 159 | else if(mode == "GL_EXP") |
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| 160 | return GL_EXP; |
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| 161 | else if(mode == "GL_EXP2" ) |
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| 162 | return GL_EXP2; |
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| 163 | else |
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| 164 | return -1; |
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[6772] | 165 | } |
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| 166 | |
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[7810] | 167 | |
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