void VectorNode::preRender(const VertexArrayPtr& pVA, bool bIsParentActive,
float parentEffectiveOpacity)
{
Node::preRender(pVA, bIsParentActive, parentEffectiveOpacity);
{
ScopeTimer timer(PrerenderProfilingZone);
VertexDataPtr pShapeVD = m_pShape->getVertexData();
if (m_bDrawNeeded) {
pShapeVD->reset();
Pixel32 color = getColorVal();
calcVertexes(pShapeVD, color);
m_bDrawNeeded = false;
}
if (isVisible()) {
m_pShape->setVertexArray(pVA);
}
}
}
//called on the drawingArea's expose event
gboolean drawingAreaExpose(GtkWidget *widgetDrawingArea, GdkEventExpose *event, gpointer data) {
passToDrawingAreaExpose* passed = (passToDrawingAreaExpose*) data;
bool* draw = passed->draw;
if (*draw) {
OwnRobot* ownRobotDraw = passed->ownRobotDraw;
int myTeam = passed->myTeam;
int numberOfRobots = passed->numberOfRobots;
int *drawFactor = passed->drawFactor;
int imageWidth = (VIEWDISTANCE+ROBOTDIAMETER) * (*drawFactor) * 2;
int imageHeight = (VIEWDISTANCE+ROBOTDIAMETER) * (*drawFactor) * 2;
//origin is the middle point where our viewed robot is located
int origin[] = { imageWidth / 2, imageHeight / 2 };
cairo_t *cr = gdk_cairo_create(GTK_DRAWING_AREA(widgetDrawingArea)->widget.window);
cairo_set_line_width(cr, 2);
ColorObject color = colorFromTeam(myTeam);
//draw our home if it is nearby (FIRST so it goes underneath)
if (ownRobotDraw->homeRelX - ((HOMEDIAMETER / 2) + (ROBOTDIAMETER / 2)) < VIEWDISTANCE &&
ownRobotDraw->homeRelY - ((HOMEDIAMETER / 2) + (ROBOTDIAMETER / 2)) < VIEWDISTANCE) {
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_arc(cr, origin[0] + ownRobotDraw->homeRelX * *drawFactor,
origin[1] + ownRobotDraw->homeRelY * *drawFactor, HOMEDIAMETER * *drawFactor / 2, 0, 2 * M_PI);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, color.r, color.g, color.b);
cairo_fill(cr);
}
for (unsigned int i = 0; i < ownRobotDraw->seenRobots.size(); i++) {
//robot Ids start at 1, team Ids start at 0. Must remember this. THIS is where the damn
//blue robot and off coloring has been coming from.
color = colorFromTeam(((ownRobotDraw->seenRobots.at(i)->id)-1) / numberOfRobots);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_arc(cr, origin[0] + ownRobotDraw->seenRobots.at(i)->relx * *drawFactor,
origin[1] + ownRobotDraw->seenRobots.at(i)->rely * *drawFactor, ROBOTDIAMETER * *drawFactor / 2, 0,
2 * M_PI);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, color.r, color.g, color.b);
cairo_fill(cr);
}
//draw seen pucks
cairo_set_source_rgb(cr, 0, 0, 0);
for (unsigned int i = 0; i < ownRobotDraw->seenPucks.size(); i++) {
cairo_arc(cr, origin[0] + ownRobotDraw->seenPucks.at(i)->relx * *drawFactor,
origin[1] + ownRobotDraw->seenPucks.at(i)->rely * *drawFactor, PUCKDIAMETER * *drawFactor / 2, 0,
2 * M_PI);
cairo_fill(cr);
}
//draw the currently viewed robot
color = colorFromTeam(myTeam);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_arc(cr, origin[0], origin[1], ROBOTDIAMETER * *drawFactor / 2, 0, 2 * M_PI);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, color.r, color.g, color.b);
cairo_fill(cr);
//ownRobot->angle does not provide a valid angle ( it's always zero )!
//draw the line showing the angle that the robot is moving at
if( !(ownRobotDraw->vx == 0 && ownRobotDraw->vy == 0 ))
{
int endX=origin[0] + ownRobotDraw->vx * *drawFactor * 4, endY=origin[1] + ownRobotDraw->vy * *drawFactor * 4;
double x1, y1, x2, y2;
calcVertexes(origin[0], origin[1], endX, endY, *drawFactor, x1, y1, x2, y2);
cairo_set_source_rgba(cr, 0, 0, 0, 0.6);
cairo_move_to(cr, origin[0], origin[1]);
cairo_line_to(cr, endX, endY);
cairo_line_to(cr, x1, y1);
cairo_move_to(cr, x2, y2);
cairo_line_to(cr, endX, endY);
cairo_stroke(cr);
}
//if the robot has a puck then actually draw the puck in its center
if (ownRobotDraw->hasPuck) {
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_arc(cr, origin[0], origin[1], PUCKDIAMETER * *drawFactor, 0, 2 * M_PI);
cairo_stroke(cr);
}
//draw the viewing area - cairo angles are stupid
//bonus: not moving? 360 degree view
cairo_set_source_rgba(cr, 0, 0, 0, 0.75);
if(ownRobotDraw->vx == 0 && ownRobotDraw->vy == 0)
{
//draw the circle
cairo_arc(cr, origin[0], origin[1], imageWidth/2, 0, 2 * M_PI);
}else{
//draw the cone
cairo_move_to(cr, origin[0], origin[1]);
cairo_arc_negative(cr, origin[0], origin[1], imageWidth/2, (VIEWANGLE / 2.0) - ownRobotDraw->angle, (2 * M_PI) - (VIEWANGLE/2.0) - ownRobotDraw->angle);
cairo_line_to(cr, origin[0], origin[1]);
}
cairo_stroke(cr);
cairo_destroy(cr);
*draw = false;
if (gtk_toggle_tool_button_get_active(passed->info))
updateInfoWindow(ownRobotDraw, passed->builder);
}
return FALSE;
}