void ZMapDesc::DrawMapDesc()
{
DrawSmoke();
}
int DrawGLScene(GLvoid)
{
int t;
float dist;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
// Posisi kamera
if(var.cameratype==0)
{
dist=sqrt( (car.x-var.Iox)*(car.x-var.Iox)+(car.z-var.Ioz)*(car.z-var.Ioz) );
if(dist>150)
{
srand(rand());
t=(rand()%45-rand()%45);
var.Iox=car.x+50*cos((car.any+90+t)*3.141/180);
var.Ioy=(float)(1+rand()%10);
var.Ioz=car.z-50*sin((car.any+90+t)*3.141/180);
}
gluLookAt(var.Iox,var.Ioy,var.Ioz,car.x,1.0f,car.z,0.0f,1.0f,0.0f);
}
if(var.cameratype==1)
{
var.xc=car.x+30*cos(var.anc*3.141/180);
var.yc=8;
var.zc=car.z+30*sin(var.anc*3.141/180);
gluLookAt(var.xc,var.yc,var.zc,car.x,0.0f,car.z,0.0f,1.0f,0.0f);
var.anc+=0.5;
}
// Random untuk mobil balik
if(var.gira==false)
{
if(rand()%100==1)
{
car.anruote=(float)(rand()%30-rand()%30);
var.gira=true;
}
}
// Random perubahan kecepatan
if(var.vel==0)
{
if(rand()%100==1)
{
car.vf=10+(float)(rand()%30);
car.dvf=(car.vf-car.velocita)/100;
var.vel=100;
}
}
else
{
car.velocita+=car.dvf;
var.vel--;
}
DrawBuf(); // membuat terrain
//Sudut mobil dan velg
car.any+=car.dany;
car.dany=car.anruote/30;
car.anruote/=1.01;
if(fabs(car.anruote)<2)
{
var.gira=false;
car.anruote=0;
}
// mengubah arah mobil
car.x+=car.velocita*cos((car.any+90)*3.141/180)/30;
car.z+=-car.velocita*sin((car.any+90)*3.141/180)/30;
// Clipping
if( car.x<-400 )
car.x=400;
if( car.x>400 )
car.x=-400;
if( car.z<-400 )
car.z=400;
if( car.z>400 )
car.z=-400;
// membuat bayangan
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_DST_COLOR);
glPushMatrix();
glTranslatef(car.x+sin(car.any*3.141/180),0,car.z+sin(car.any*3.141/180));
glRotatef(car.any,0,1,0);
glColor3f(0.1,0.1,0.1);
glBegin(GL_QUADS);
glVertex3f(-2.5,0.01,-6);
glVertex3f(2.5,0.01,-6);
glVertex3f(2.5,0.01,6);
glVertex3f(-2.5,0.01,6);
glEnd();
glPopMatrix();
glDisable(GL_BLEND);
// membuat mobil
glColor3f(1,1,1);
glEnable(GL_LIGHTING);
glPushMatrix();
glTranslatef(car.x,car.y,car.z);
glRotatef(car.any,0,1,0);
Auto->draw();
// membuat velg
for(t=0;t<4;t++)
{
glPushMatrix();
glTranslatef(car.xruote[t],car.yruote[t]+(float)(rand()%10)/100,car.zruote[t]);
if(t==0 || t==1)
glRotatef(car.anruote,0,1,0);
if(t==1 || t==3)
{
glRotatef(180,0,1,0);
glRotatef(-car.gira,1,0,0);
}
if(t==0 || t==2)
glRotatef(car.gira,1,0,0);
Ruota->draw();
glPopMatrix();
car.gira-=car.velocita/3;
}
glPopMatrix();
glDisable(GL_LIGHTING);
DrawSmoke(); // membuat asap velg
var.frame++;
return TRUE;
}