Sorted all source files in folders

[lugaru.git] / Source / Environment / Skybox.cpp

diff --git a/Source/Environment/Skybox.cpp b/Source/Environment/Skybox.cpp
new file mode 100644 (file)
index 0000000..ce58adf
--- /dev/null
+++ b/Source/Environment/Skybox.cpp
@@ -0,0 +1,170 @@
+/*
+Copyright (C) 2003, 2010 - Wolfire Games
+Copyright (C) 2010-2016 - Lugaru contributors (see AUTHORS file)
+
+This file is part of Lugaru.
+
+Lugaru is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+Lugaru is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Lugaru.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "Environment/Skybox.h"
+#include "Game.h"
+
+extern float viewdistance;
+extern float blurness;
+extern int environment;
+extern bool skyboxtexture;
+extern float skyboxr;
+extern float skyboxg;
+extern float skyboxb;
+
+void SkyBox::load (const std::string& ffront, const std::string& fleft, const std::string& fback,
+                   const std::string& fright, const std::string& fup,   const std::string& fdown)
+{
+    front.load(ffront, true);
+    left.load(fleft, true);
+    back.load(fback, true);
+    right.load(fright, true);
+    up.load(fup, true);
+    down.load(fdown, true);
+}
+
+void SkyBox::draw()
+{
+    static float size = viewdistance / 4;
+    glPushMatrix();
+    static GLfloat M[16];
+    glGetFloatv(GL_MODELVIEW_MATRIX, M);
+    M[12] = 0;
+    M[13] = 0;
+    M[14] = 0;
+    glLoadMatrixf(M);
+    if (environment == desertenvironment) {
+        glScalef(1 + blurness / 1000, 1, 1 + blurness / 1000);
+        glColor3f(1 * skyboxr, .95 * skyboxg, .95 * skyboxb);
+    } else {
+        glColor3f(.85 * skyboxr, .85 * skyboxg, .95 * skyboxb);
+    }
+
+    if (!skyboxtexture) {
+        glDisable(GL_TEXTURE_2D);
+        glColor3f(skyboxr * .8, skyboxg * .8, skyboxb * .8);
+    }
+    glDepthMask(0);
+    glDisable(GL_CULL_FACE);
+    glEnable(GL_BLEND);
+    glDisable(GL_LIGHTING);
+    if (skyboxtexture)
+        glEnable(GL_TEXTURE_2D);
+    glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
+    front.bind();
+    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
+    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
+    glBegin(GL_QUADS);
+    glNormal3f( 0.0f, 0.0f, -1);
+    glTexCoord2f(0, 0);
+    glVertex3f(-size, -size,  size);
+    glTexCoord2f(1, 0);
+    glVertex3f( size, -size,  size);
+    glTexCoord2f(1, 1);
+    glVertex3f( size,  size,  size);
+    glTexCoord2f(0, 1);
+    glVertex3f(-size,  size,  size);
+    glEnd();
+    back.bind();
+    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
+    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
+    glBegin(GL_QUADS);
+    glNormal3f( 0.0f, 0.0f, 1);
+    glTexCoord2f(1, 0);
+    glVertex3f(-size, -size, -size);
+    glTexCoord2f(1, 1);
+    glVertex3f(-size,  size, -size);
+    glTexCoord2f(0, 1);
+    glVertex3f( size,  size, -size);
+    glTexCoord2f(0, 0);
+    glVertex3f( size, -size, -size);
+    glEnd();
+    up.bind();
+    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
+    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
+    glBegin(GL_QUADS);
+    glNormal3f( 0.0f, -1.0f, 0);
+    glTexCoord2f(0, 1);
+    glVertex3f(-size,  size, -size);
+    glTexCoord2f(0, 0);
+    glVertex3f(-size,  size,  size);
+    glTexCoord2f(1, 0);
+    glVertex3f( size,  size,  size);
+    glTexCoord2f(1, 1);
+    glVertex3f( size,  size, -size);
+    glEnd();
+    down.bind();
+    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
+    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
+    glBegin(GL_QUADS);
+    glNormal3f( 0.0f, 1.0f, 0);
+
+    glTexCoord2f(0, 0);
+    glVertex3f(-size, -size, -size);
+    glTexCoord2f(1, 0);
+    glVertex3f( size, -size, -size);
+    glTexCoord2f(1, 1);
+    glVertex3f( size, -size,  size);
+    glTexCoord2f(0, 1);
+    glVertex3f(-size, -size,  size);
+    glEnd();
+    right.bind();
+    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
+    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
+    glBegin(GL_QUADS);
+    glNormal3f( -1.0f, 0.0f, 0);
+    glTexCoord2f(1, 0);
+    glVertex3f( size, -size, -size);
+    glTexCoord2f(1, 1);
+    glVertex3f( size,  size, -size);
+    glTexCoord2f(0, 1);
+    glVertex3f( size,  size,  size);
+    glTexCoord2f(0, 0);
+    glVertex3f( size, -size,  size);
+    glEnd();
+    left.bind();
+    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
+    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
+    glBegin(GL_QUADS);
+    glNormal3f( 1.0f, 0.0f, 0);
+    glTexCoord2f(0, 0);
+    glVertex3f(-size, -size, -size);
+    glTexCoord2f(1, 0);
+    glVertex3f(-size, -size,  size);
+    glTexCoord2f(1, 1);
+    glVertex3f(-size,  size,  size);
+    glTexCoord2f(0, 1);
+    glVertex3f(-size,  size, -size);
+    glEnd();
+    glEnable(GL_CULL_FACE);
+    glDepthMask(1);
+    glPopMatrix();
+}
+
+SkyBox::~SkyBox()
+{
+    front.destroy();
+    left.destroy();
+    back.destroy();
+    right.destroy();
+    up.destroy();
+    down.destroy();
+};
+