/xbmc/visualizations/Vortex/VortexVis/Effects/Tunnel.cpp
http://github.com/xbmc/xbmc · C++ · 123 lines · 84 code · 16 blank · 23 comment · 2 complexity · bbc2fe62277c17d4251a6e0b4dff96e8 MD5 · raw file
- /*
- * Copyright  2010-2013 Team XBMC
- * http://xbmc.org
- *
- * This program 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.
- *
- * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
- #include "Tunnel.h"
- #include "Renderer.h"
- #include "angelscript.h"
- struct TunnelParameters
- {
- float Time;
- float XRadius;
- float YRadius;
- float XCounter;
- float YCounter;
- int CircleSegments;
- int TunnelLength;
- float TunnelZ;
- float RotateX;
- float RotateY;
- float RotateZ;
- };
- float Min( float x, float y )
- {
- return x < y ? x : y;
- }
- float Max( float x, float y )
- {
- return x > y ? x : y;
- }
- float ApplySinX(int i, float time)
- {
- const float radian = (i/40.0f*(2.0f*3.14159f));
- float returnvalue = sinf(radian/2.0f+time)+6.0f*cosf(radian/4.0f+time);//+6*cosf((radian+time)/10.0f);
- return returnvalue*1.0f;
- }
- float ApplySinY(int i, float time)
- {
- const float radian = (i/40.0f*(2.0f*3.14159f));
- float returnvalue = 3.0f*sinf(radian/8.0f+time)+3.0f*cosf(radian/2.0f+time)*sinf(radian/4.0f+time);
- return returnvalue*0.2f;
- }
- void RenderTunnel( TunnelParameters& tp )
- {
- int TunnelLength = max( min( tp.TunnelLength, 100 ), 2 );
- int CircleSegments = max( min( tp.CircleSegments, 30 ), 3 );
- // Renderer::RotateAxis(atanf((ApplySinX(3, tp.XCounter)-ApplySinX(0,tp.XCounter))/3.0f)*(180.0f/3.14159f), 0.0f, 1.0f, 0.0f);
- // Renderer::RotateAxis(atanf((ApplySinY(0,tp.YCounter)-ApplySinY(7, tp.YCounter))/7.0f)*(180.0f/3.14159f), 1.0f, 0.0f, 0.0f);
- Renderer::RotateAxis( (tp.RotateZ) * 45, 0, 0, 1 );
- Renderer::Translate( -ApplySinX( 0, tp.XCounter ), -ApplySinY( 0, tp.YCounter ), 0.0f );
- for ( int z = 0; z < CircleSegments; z++ )
- {
- Renderer::Begin( D3DPT_TRIANGLESTRIP );
- for ( int i = 0; i < TunnelLength; i++ )
- {
- float col = 1-(((1.0f * i / TunnelLength))*1);
- Renderer::Colour( col, col, col, col );
- Renderer::TexCoord( 1-((float)z/CircleSegments*4.0f),
- 1 - ( (float)i / TunnelLength * 8 + tp.TunnelZ ) );
- Renderer::Vertex( tp.XRadius * sinf( (float)z / CircleSegments * ( 2.0f * 3.14159f ) ) + ApplySinX( i, tp.XCounter ),
- tp.YRadius * cosf( (float)z / CircleSegments * ( 2.0f * 3.14159f ) ) + ApplySinY( i, tp.YCounter ),
- (float)i );
- Renderer::TexCoord( 1 - ( ( (float)z + 1 ) / CircleSegments * 4.0f ),
- 1 - ( (float)i / TunnelLength * 8 + tp.TunnelZ ) );
- Renderer::Vertex( tp.XRadius * sinf( ( (float)z + 1 ) / CircleSegments * ( 2.0f * 3.14159f ) ) + ApplySinX( i, tp.XCounter ),
- tp.YRadius * cosf( ( (float)z + 1 ) / CircleSegments * ( 2.0f * 3.14159f ) ) + ApplySinY( i, tp.YCounter ),
- (float)i );
- }
- Renderer::End();
- }
- }
- #ifndef assert
- #define assert
- #endif
- void Tunnel::RegisterScriptInterface( asIScriptEngine* pScriptEngine )
- {
- int r;
- //----------------------------------------------------------------------------
- // Register Tunnel Parameter structure
- r = pScriptEngine->RegisterObjectType("TunnelParameters", sizeof(TunnelParameters), asOBJ_VALUE | asOBJ_POD); assert( r >= 0 );
- // Register the object properties
- r = pScriptEngine->RegisterObjectProperty("TunnelParameters", "float Time", offsetof(TunnelParameters, Time)); assert( r >= 0 );
- r = pScriptEngine->RegisterObjectProperty("TunnelParameters", "float XRadius", offsetof(TunnelParameters, XRadius)); assert( r >= 0 );
- r = pScriptEngine->RegisterObjectProperty("TunnelParameters", "float YRadius", offsetof(TunnelParameters, YRadius)); assert( r >= 0 );
- r = pScriptEngine->RegisterObjectProperty("TunnelParameters", "float XCounter", offsetof(TunnelParameters, XCounter)); assert( r >= 0 );
- r = pScriptEngine->RegisterObjectProperty("TunnelParameters", "float YCounter", offsetof(TunnelParameters, YCounter)); assert( r >= 0 );
- r = pScriptEngine->RegisterObjectProperty("TunnelParameters", "int CircleSegments", offsetof(TunnelParameters, CircleSegments)); assert( r >= 0 );
- r = pScriptEngine->RegisterObjectProperty("TunnelParameters", "int TunnelLength", offsetof(TunnelParameters, TunnelLength)); assert( r >= 0 );
- r = pScriptEngine->RegisterObjectProperty("TunnelParameters", "float TunnelZ", offsetof(TunnelParameters, TunnelZ)); assert( r >= 0 );
- r = pScriptEngine->RegisterObjectProperty("TunnelParameters", "float RotateX", offsetof(TunnelParameters, RotateX)); assert( r >= 0 );
- r = pScriptEngine->RegisterObjectProperty("TunnelParameters", "float RotateY", offsetof(TunnelParameters, RotateY)); assert( r >= 0 );
- r = pScriptEngine->RegisterObjectProperty("TunnelParameters", "float RotateZ", offsetof(TunnelParameters, RotateZ)); assert( r >= 0 );
- r = pScriptEngine->RegisterGlobalFunction("void RenderTunnel(TunnelParameters& in)", asFUNCTION(RenderTunnel), asCALL_CDECL); assert(r >= 0);
- }