/* ......Micquie Bradford's Object for the Object Library......
Function: Draws a table fan whose blades can rotate.

The color of the base of the fan can be chosen by the user. 
mbradforDrawFan takes only 2 parameters, the base color (in the
form of a twTriple), and the initial rotation angle of the fan
blades (in the form of a GLfloat).
*/

static  twTriple bladeColor = {75/255.0,75/255.0,75/255.0};
static  twTriple cageColor = {30/255.0,30/255.0,30/255.0};
static  twTriple blade[5] =  { {1,4.5,-1},
		    	 {6,6,-6},
			 {9,6,-1},
			 {1,4.5,0} };

static void drawCage(){	
    glPushMatrix();//draw cage
    glTranslatef(0,6,0);
    glRotatef(90,1,0,0);
    glutWireTorus(0.05,10,50,50);
    for (int i=1; i<=4; i++){
      glPushMatrix();
      glRotatef(i*40,0,0,1);
      glRotatef(90,1,0,0);
      glScalef(1,0.3,1);
      glutWireTorus(0.05,10,50,50);
      glPopMatrix();
    }
    glPopMatrix();
}

static void drawBlades(){
    glPushMatrix();
    for (int i=1;i<=4;i++){//draw blades
      glRotatef(90,0,1,0);
      glBegin(GL_POLYGON);
      {
	glVertex3fv(blade[0]);
	glVertex3fv(blade[1]);
	glVertex3fv(blade[2]);
	glVertex3fv(blade[3]);
      }
      glEnd();
    }
    glPopMatrix();
}

void mbradforDrawFan(twTriple fanColor,GLfloat rotA){

    glPushMatrix();//initial push

    twColor(fanColor,0,0.2);//draw base
    glPushMatrix();
    glTranslatef(10,5,-10);
    glRotatef(90,1,0,0);
    twTube(8,8,1,30,30);//very bottom of base
    
    glTranslatef(0,0,-1);//upper base level
    twTube(7,7,1,30,30);
    
    glTranslatef(0,0,-10);//standing part of base
    twTube(2,6,10,30,30);
    
    glTranslatef(0,0,-2);
    
    glPushMatrix();//isolate scale of sphere
    glScalef(0.8,1,0.8);
    glutSolidSphere(4,20,20);
    glPopMatrix();
    
    glPushMatrix();//isolate positioning of fan head
    glTranslatef(0,4,0);
    glRotatef(90,0,1,0);
    glRotatef(90,1,0,0);
    twTube(2,3,4,30,30);
    glTranslatef(0,0,-0.8);
    twColor(cageColor,0.3,0.6);
    twTube(1,1,0.8,30,30);
    glPopMatrix();
    
    drawCage();
    
    twColor(bladeColor,3,2);
    glRotatef(rotA,0,1,0);

    drawBlades();
    
    glPopMatrix();//pop from origin in progress
    
    glPopMatrix();//final pop
    twError();}