void AddArmDetail(Geometry*g,float w,float r, int sides)
{
Geometry tmp;
float ang=(float)(PI/sides);
float sina=sin(ang),cosa=cos(ang);
int i;
vec3 t1(0,0,r),t0(0,0,r),hh(w/2,0,0),hh0(0,0,0);
for(i=0; i<sides; i++)
{
t1.RotateOij(sina,cosa,1,2);
AddQuad(&tmp,t0,t1,t1+hh,t0+hh);
tmp.AddTriangle(t0,t1,hh0);
tmp.AddTriangle(t1+hh,t0+hh,hh);
t0=t1;
}
tmp.SetNormOutOf(vec3((w)/4,0,0));
g->Add(tmp);
//tmp.renull();
//AddQuad(&tmp,);
AddBox(g,vec3(0,0,r),vec3(w/2,r,-r));
AddBox(g,vec3(-w/2,2*r,r),vec3(w/2,r,-r));
}
void AddSphere(Geometry*g,float r, int sides_a, int sides_b)
{
Geometry tmp;
float ang=(float)(PI/sides_a);
float sina=sin(ang),cosa=cos(ang);
float ang2=(float)(PI*2.0/sides_b);
float sinb=sin(ang2),cosb=cos(ang2);
int i,j;
vec3 v0(0,r,0),u0,u1,w0,w1;
vec3 v1(v0);
for(i=0; i<sides_a; i++)
{
v1.RotateOij(sina,cosa,0,1);
u0 = v0;
w0 = v1;
u1 = v0;
w1 = v1;
for(j=0; j<sides_b; j++)
{
u1.RotateOij(sinb,cosb,0,2);
w1.RotateOij(sinb,cosb,0,2);
if(i==sides_b-1)
tmp.AddTriangle(u0,u1,w0);
else if(!i)
tmp.AddTriangle(u1,w1,w0);
else
AddQuad(&tmp,u0,u1,w1,w0);
u0=u1;
w0=w1;
}
v0=v1;
}
tmp.SetNormOutOf(vec3(0,0,0));
g->Add(tmp);
}
void AddCylinder(Geometry*g,float h,float r, int sides)
{
Geometry tmp;
float ang=(float)(PI*2.0/sides);
float sina=sin(ang),cosa=cos(ang);
int i;
vec3 t1(r,0,0),t0(r,0,0),hh(0,h,0),hh0(0,0,0);
for(i=0; i<sides; i++)
{
t1.RotateOij(sina,cosa,0,2);
AddQuad(&tmp,t0,t1,t1+hh,t0+hh);
tmp.AddTriangle(t0,t1,hh0);
tmp.AddTriangle(t1+hh,t0+hh,hh);
t0=t1;
}
tmp.SetNormOutOf(vec3(0,h/2,0));
g->Add(tmp);
}
