//Here is the mouse callback function, you will need to use the x, y coordinate intelligently to get the color of the pixel that is clicked on.
//You must have a printf statement here as well that prints out the coordinate and the color from the background image at the location
void myMouse(int button, int state, int x, int y)
{
//You need to think about the x and y coordinate that you get here and if they are what you expect
switch (button)
{
case GLUT_LEFT_BUTTON:
if(state == GLUT_DOWN)
{
getImageColor(image, x, y, &Red, &Green, &Blue);
printf(" Screen Click R= %u ",Red);
printf("G=%u ", Green);
printf("B=%u ", Blue);
printf("\n");
//Do something (this is just example if/else statements and not intended to demonstrate anything)
}
break;
}
}
bool ofxCirclePacker :: checkCircleImage ( Circle& circle )
{
float radius = ( circle.bUnderMinRadius ) ? circleRadiusMin : circle.radiusNext;
//-- CHECK CIRCLE IS WITHIN IMAGE BOUNDS.
bool lb = circle.loc.x - ( radius + circleDeathGap ) < circleColorBoundsImageRect.x;
bool rb = circle.loc.x + ( radius + circleDeathGap ) > circleColorBoundsImageRect.x + circleColorBoundsImageRect.width;
bool tb = circle.loc.y - ( radius + circleDeathGap ) < circleColorBoundsImageRect.y;
bool bb = circle.loc.y + ( radius + circleDeathGap ) > circleColorBoundsImageRect.y + circleColorBoundsImageRect.height;
if( lb || rb || tb || bb )
{
circle.alive = false;
return false;
}
//-- CHECK CIRCLE IS WITHIN IMAGE SHAPE.
int cx = (int)( circle.loc.x - ( radius + circleDeathGap ) );
int cy = (int)( circle.loc.y - ( radius + circleDeathGap ) );
int cw = (int)( ( radius + circleDeathGap ) * 2 );
int ch = (int)( ( radius + circleDeathGap ) * 2 );
for( int x=cx; x<=cx+cw; x++ )
{
for( int y=cy; y<=cy+ch; y++ )
{
int c = getImageColor( x, y, circleColorBoundsImagePixels, circleColorBoundsImageRect );
if( circleColorBounds )
{
if( c != circle.color )
{
circle.alive = false;
return false;
}
}
if( c == circleDeathColor )
{
circle.alive = false;
return false;
}
}
}
return true;
}
void ofxCirclePacker :: addCircle( int color )
{
circles.push_back( Circle() );
Circle& circle = circles.back();
circle.id = circleIdCount;
circle.loc.x = ofRandom( (float)circleColorBoundsImageRect.x, (float)( circleColorBoundsImageRect.x + circleColorBoundsImageRect.width ) );
circle.loc.y = ofRandom( (float)circleColorBoundsImageRect.y, (float)( circleColorBoundsImageRect.y + circleColorBoundsImageRect.height ) );
circle.lifeCount = 0;
circle.growth = ofRandom( 0.1, 0.5 );
circle.radius = 0;
circle.radiusNext = circle.growth;
circle.alive = true;
circle.bUnderMinRadius = true;
if( useCircleColorMapImage )
{
circle.color = getImageColor( (int)circle.loc.x, (int)circle.loc.y, circleColorMapImagePixels, circleColorMapImageRect );
}
else
{
circle.color = color;
}
bool bValid;
bValid = true;
if( useCircleColorBoundsImage )
{
bValid = bValid && checkCircleImage( circle ); // fits on image.
}
if( bValid )
{
bValid = bValid && !checkCircleCollisionWithAll( circle ); // no collision.
}
if( bValid ) // circle is valid on first pass.
{
++circleIdCount;
findNeighbours( circle ); // circle fits, find neighbours.
}
else
{
circles.erase( circles.end() - 1 ); // did not fit, remove.
}
}
