bool Raven_Bot::canStepBackward(Vector2D& PositionOfStep)const
{
static const double StepDistance = BRadius() * 2;
PositionOfStep = Pos() - Facing() * StepDistance - Facing() * BRadius();
return canWalkTo(PositionOfStep);
}
bool Raven_Bot::canStepRight(Vector2D& PositionOfStep)const
{
static const double StepDistance = BRadius() * 2;
PositionOfStep = Pos() + Facing().Perp() * StepDistance + Facing().Perp() * BRadius();
return canWalkTo(PositionOfStep);
}
//--------------------------- Render -------------------------------------
//
//------------------------------------------------------------------------
void Raven_Bot::Render()
{
//when a bot is hit by a projectile this value is set to a constant user
//defined value which dictates how long the bot should have a thick red
//circle drawn around it (to indicate it's been hit) The circle is drawn
//as long as this value is positive. (see Render)
m_iNumUpdatesHitPersistant--;
if (isDead() || isSpawning()) return;
gdi->BluePen();
m_vecBotVBTrans = WorldTransform(m_vecBotVB,
Pos(),
Facing(),
Facing().Perp(),
Scale());
gdi->ClosedShape(m_vecBotVBTrans);
//draw the head
(gdi->*(m_pTeam->GetPen()))();
gdi->Circle(Pos(), 6.0 * Scale().x);
//render the bot's weapon
m_pWeaponSys->RenderCurrentWeapon();
//render a thick red circle if the bot gets hit by a weapon
if (m_bHit)
{
gdi->ThickRedPen();
gdi->HollowBrush();
gdi->Circle(m_vPosition, BRadius()+1);
if (m_iNumUpdatesHitPersistant <= 0)
{
m_bHit = false;
}
}
gdi->TransparentText();
gdi->TextColor(0,255,0);
if (UserOptions->m_bShowBotIDs)
{
gdi->TextAtPos(Pos().x -10, Pos().y-20, ttos(ID()));
}
if (UserOptions->m_bShowBotHealth)
{
gdi->TextAtPos(Pos().x-40, Pos().y-5, "H:"+ ttos(Health()));
}
if (UserOptions->m_bShowScore)
{
gdi->TextAtPos(Pos().x-40, Pos().y+10, "Scr:"+ ttos(Score()));
}
}
void Obstacle::Write(std::ostream& os)const
{
os << std::endl;
os << EntityType() << ",";//z 写入了实体类型，位置和半径
os << Pos() << ",";
os << BRadius();
}
Trigger_SoundNotify::Trigger_SoundNotify(AbstRaven_Bot* source,
double range):Trigger_LimitedLifetime<AbstRaven_Bot>(FrameRate /script->GetInt("Bot_TriggerUpdateFreq")),
m_pSoundSource(source)
{
//set position and range
SetPos(m_pSoundSource->Pos());
SetBRadius(range);
//create and set this trigger's region of fluence
AddCircularTriggerRegion(Pos(), BRadius());
}
//similar to above. Returns true if the bot can move between the two
//given positions without bumping into any walls
bool Raven_Bot::canWalkBetween(Vector2D from, Vector2D to)const
{
return !m_pWorld->isPathObstructed(from, to, BRadius());
}
//returns true if this bot can move directly to the given position
//without bumping into any walls
bool Raven_Bot::canWalkTo(Vector2D pos)const
{
return !m_pWorld->isPathObstructed(Pos(), pos, BRadius());
}
void Obstacle::Render()
{
ngdi->Circle(Pos(), BRadius());
}