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#include "DarkGDK.h"


float Brightness=0.0;
bool Light=0;
bool NoPress=0;
int vec = 0;
int mat = 0;
float cr=0;
float cf=0;
float ncr=0;
float ncf=0;
float cx=0;
float cy=0;
float ncx=0;
float ncy=0;
float angX=0;
float angY=0;
float angZ=0;


void DarkGDK(void)
{
	dbSetDir ( "Media" );

	
      vec = dbMakeVector4(1);
      vec = dbMakeVector3(2);
      mat = dbMakeMatrix4(3);
      mat = dbMakeMatrix4(4);
      mat = dbMakeMatrix4(5);
      mat = dbMakeMatrix4(6);
	
	
	dbSyncOn();
	dbSyncRate(0);
	dbHideMouse();
	dbBackdropOff();
	
	dbAutoCamOff();
	dbPositionCamera(0,50,-150);
	dbSetCameraFOV(80);

	dbLoadEffect("Null.fx",1,0);
	dbLoadObject("Test.x",1);
	dbSetObjectEffect(1,1);
	dbSetObjectLight(1,0);
	

	dbLoadImage("SpotLight2.dds",1,2);
	dbLoadEffect("FlashLight.fx",2,0);
	dbLoadObject("Test_lm.x",2);
	dbSetObjectEffect(2,2);
	dbTextureObject(2,1,1);
	dbSetObjectLight(2,0);
	dbGhostObjectOn(2,1);
	dbSetObjectNormals(2);
	


	dbSync();
	

	
	while (LoopGDK())
	{

   
        cr=0;
	cf=0;
      if (dbRightKey()==1 || dbKeyState(32)==1) cr=-5;
      if (dbLeftKey()==1 || dbKeyState(30)==1) cr=5;
      if (dbUpKey()==1 || dbKeyState(17)==1) cf=5;
      if (dbDownKey()==1 || dbKeyState(31)==1) cf=-5;
         ncr=dbCurveValue(cr,ncr,5);
         ncf=dbCurveValue(cf,ncf,5);
         cx=cx+dbMouseMoveY()*0.2;
         cy=cy+dbMouseMoveX()*0.2;
      if (cx>80) cx=80;
      if (cx<-80) cx=-80;
         ncx=dbCurveAngle(cx,ncx,2);
         ncy=dbCurveAngle(cy,ncy,2);
      dbMoveCamera(ncf);
         dbRotateCamera(0,dbWrapValue(ncy-90),0);
            dbMoveCamera(ncr);
         dbRotateCamera(0,dbWrapValue(ncy+90),0);
      dbRotateCamera(ncx,ncy,0);


      if (dbKeyState(33)==1 && NoPress==0 && Light==0)
	  {
		  Light=1;
		  NoPress=1;
	  }
      if (dbKeyState(33)==1 && NoPress==0 && Light==1)
	  {
		  Light=0;
		  NoPress=1;
	  }
      if (Light==0) Brightness=Brightness-0.1;
      if (Light==1) Brightness=Brightness+0.1;
      if (Brightness>1.0) Brightness=1.0;
      if (Brightness<0.0) Brightness=0.0;
      dbSetEffectConstantFloat(2,"BrightNess",Brightness);
      if (dbKeyState(33)==0) NoPress=0;



         dbSetVector4(1,dbCameraPositionX(),dbCameraPositionY(),dbCameraPositionZ(),0);
      dbSetEffectConstantVector(2,"LightPosition",1);
      angX=dbCurveAngle(dbCameraAngleX(),angX,4);
      angY=dbCurveAngle(dbCameraAngleY(),angY,4);
         dbSetVector3(2,1,0,0);
            dbBuildRotationAxisMatrix4(3,2,(angX)/57.3);
         dbSetVector3(2,0,1,0);
            dbBuildRotationAxisMatrix4(4,2,(angY)/57.3);
         dbSetVector3(2,0,0,1);
            dbBuildRotationAxisMatrix4(5,2,(angZ)/57.3);
         dbMultiplyMatrix4(6, 3, 4);
		 dbMultiplyMatrix4(6, 6, 5);
      dbSetEffectConstantMatrix(2,"LightAngle",6);


	dbSync();
	}

	return;
}

dbSetEffectConstantFloat(2,"BrightNess",Brightness);
.......
dbSetEffectConstantVector(2,"LightPosition",1);
.......
dbSetEffectConstantMatrix(2,"LightAngle",6);