//Jackie Weber

/*
My object for the Object Library
table(...) takes four parameters
1) float tablePostLeftX
2) float tablePostRightX
3) float tablePostTopZ
4) float tablePostBottomZ
5) int tex - number of texture ID to be used for table legs

1-4 are the positions of the table legs. This is assuming a normal coordinate system with a normal (down the z axis) camera view.
The size of the top of the table is: 
tablePostRightX-tablePostLeftX
tablePostTopZ-tablePostBottomZ
y=4*
top of table is white/



/*
x and z specify the origin along their respective axes
Origin: x,0,z
Orientation: normal axes
Size:
Color: tex
*/
twTriple lightGray={.9,.9,.9};

static void tablePosts2(float x,float z, GLuint texid){
 glEnable(GL_TEXTURE_2D);
 twColor(lightGray,0.5,30);//lightGray because the texture was darker than I wanted 
 glBindTexture(GL_TEXTURE_2D, texid);
 float frontLowerRightX=x-.5;
 float frontLowerLeftX=x+.5;
 glBegin(GL_QUADS);
 glNormal3f(0,0,1);
 glTexCoord2f(0,0); 
 glVertex3f(x-.5,3.0, z+.5);
 glTexCoord2f(0,1);
 glVertex3f (x-.5,0.0, z+.5);
 glTexCoord2f(1,1); 
 glVertex3f (x+.5,0.0,z+.5);
 glTexCoord2f(1,0); 
 glVertex3f (x+.5,3.0,z+.5);
 
 glNormal3f(1,0,0);
 glTexCoord2f(0,0); 
 glVertex3f(x+.5,3,z+.5);
 glTexCoord2f(0,1);
 glVertex3f(x+.5,0,z+.5);
 glTexCoord2f(1,1);
 glVertex3f(x+.5,0,z-.5);
 glTexCoord2f(1,0);
 glVertex3f(x+.5,3,z-.5);

 glNormal3f(0,0,-1);
 glTexCoord2f(0,0);
 glVertex3f(x-.5,3.0, z-.5);
 glTexCoord2f(0,1);
 glVertex3f (x-.5,0.0, z-.5);
 glTexCoord2f(1,1);
 glVertex3f (x+.5,0.0,z-.5);
 glTexCoord2f(1,0);
 glVertex3f (x+.5,3.0,z-.5);

 glNormal3f(-1,0,0);
 glTexCoord2f(0,0);
 glVertex3f(x-.5,3,z+.5);
 glTexCoord2f(0,1);
 glVertex3f(x-.5,0,z+.5);
 glTexCoord2f(1,1);
 glVertex3f(x-.5,0,z-.5);
 glTexCoord2f(1,0);
 glVertex3f(x-.5,3,z-.5);

 glEnd();
}


/*
 x1 is the right edge of the table; x2 is the left side, z1 is top and z2 is bottom
Origin: halfway between x1 and x2, y=3.5, and halfway between z1 and z2
Orientation: normal axes
Size: in the x direction, x1-x2+1,z1-z2-1
Color: White
*/
static void tableTop2(float x1,float x2,float z1,float z2){
 glDisable(GL_TEXTURE_2D);

  twColorName(TW_WHITE);
  glTranslatef((x1+x2)/2.0,3.5,(z1+z2)/2.0);
  glPushMatrix();
  glScalef(x1-x2+1,1,z1-z2-1);
  glutSolidCube(1);
  glPopMatrix();
}

/*
Note: this function has no push and pop. This makes it easier to place things on top of the table.
Origin: halfway between tablePostLeftX and tablePostRightX, halfway between tablePostTopZ and tablePostBottomZ (tablePostBottomA being a lower number on the z axis, so it's farther from the viewer with the typical original view), y=0
Orientation: normal coordinate system
Size: tablePostRightX-tablePostLeftX, tablePostTopZ-tablePostBottomZ, y=4 (tablepostheight (3) + tableTopHeight(1))
Colors: tablePosts are brown, tableTop is white
*/
void jweber2Table2(float tablePostLeftX,float tablePostRightX,float tablePostTopZ,float tablePostBottomZ,GLuint texid){
 glDisable(GL_TEXTURE_2D);

 tablePosts2(tablePostLeftX,tablePostTopZ,texid);//tableposts for table
 tablePosts2(tablePostRightX,tablePostTopZ,texid);
 tablePosts2(tablePostLeftX,tablePostBottomZ,texid);
 tablePosts2(tablePostRightX,tablePostBottomZ,texid);
 tableTop2(tablePostRightX-1,tablePostLeftX+1,tablePostTopZ,tablePostBottomZ);//top of table - tableposts changed in the X direction so directly over tableposts and not between them in the x direction
}