/**\brief Update the Projectile
*
* Projectiles do all the normal Sprite things like moving.
* Projectiles check for collisions with nearby Ships, and if they collide,
* they deal damage to that ship. Note that since each projectile knows which ship fired it and will never collide with them.
*
* Projectiles have a life time limit (in milli-seconds). Each tick they need
* to check if they've lived to long and need to disappear.
*
* Projectiles have the ability to track down a specific target. This only
* means that they will turn slightly to head towards their target.
*/
void Projectile::Update( void ) {
Sprite::Update(); // update momentum and other generic sprite attributes
SpriteManager *sprites = SpriteManager::Instance();
// Check for projectile collisions
Sprite* impact = sprites->GetNearestSprite( (Sprite*)this, 100,DRAW_ORDER_SHIP|DRAW_ORDER_PLAYER );
if( (impact != NULL) && (impact->GetID() != ownerID) && ((this->GetWorldPosition() - impact->GetWorldPosition()).GetMagnitude() < impact->GetRadarSize() )) {
((Ship*)impact)->Damage( (weapon->GetPayload())*damageBoost );
sprites->Delete( (Sprite*)this );
// Create a fire burst where this projectile hit the ship's shields.
// TODO: This shows how much we need to improve our collision detection.
Effect* hit = new Effect(this->GetWorldPosition(), "Resources/Animations/shield.ani", 0);
hit->SetAngle( -this->GetAngle() );
hit->SetMomentum( impact->GetMomentum() );
sprites->Add( hit );
}
// Expire the projectile after a time period
if (( Timer::GetTicks() > secondsOfLife + start )) {
sprites->Delete( (Sprite*)this );
}
// Track the target
Sprite* target = sprites->GetSpriteByID( targetID );
float tracking = weapon->GetTracking();
if( target != NULL && tracking > 0.00000001f ) {
float angleTowards = normalizeAngle( ( target->GetWorldPosition() - this->GetWorldPosition() ).GetAngle() - GetAngle() );
SetMomentum( GetMomentum().RotateBy( angleTowards*tracking ) );
SetAngle( GetMomentum().GetAngle() );
}
}
void Radar::Draw( SpriteManager &sprites ) {
short int radar_mid_x = RADAR_MIDDLE_X + Video::GetWidth() - 129;
short int radar_mid_y = RADAR_MIDDLE_Y + 5;
int radarSize;
const list<Sprite*>& spriteList = sprites.GetSprites();
for( list<Sprite*>::const_iterator iter = spriteList.begin(); iter != spriteList.end(); iter++)
{
Coordinate blip( -(RADAR_HEIGHT / 2.0), (RADAR_WIDTH / 2.0), (RADAR_HEIGHT / 2.0), -(RADAR_WIDTH / 2.0) );
Sprite *sprite = *iter;
if( sprite->GetDrawOrder() == DRAW_ORDER_PLAYER ) continue;
// Calculate the blip coordinate for this sprite
Coordinate wpos = sprite->GetWorldPosition();
WorldToBlip( wpos, blip );
if( blip.ViolatesBoundary() == false ) {
/* blip is on the radar */
/* Convert to screen coords */
blip.SetX( blip.GetX() + radar_mid_x );
blip.SetY( blip.GetY() + radar_mid_y );
radarSize = int((sprite->GetRadarSize() / float(visibility)) * (RADAR_HEIGHT/4.0));
Video::DrawCircle(
blip,
(radarSize>=1) ?radarSize: 1,
1,
sprite->GetRadarColor() );
}
}
}
/**\brief Draws the radar.
*/
void Radar::Draw( Camera* camera, SpriteManager* sprites ) {
short int radar_mid_x = RADAR_MIDDLE_X + Video::GetWidth() - 129;
short int radar_mid_y = RADAR_MIDDLE_Y + 5;
int radarSize;
Coordinate focus = camera->GetFocusCoordinate();
/*if(largeMode) {
if( visibility <= QUADRANTSIZE )
{
Map* map = (Map*)UI::Search( "/Map/" );
assert(map); // large mode should only be on when there is a map.
if(map) {
map->SetCenter( focus );
map->SetScale( 300.0 / (2*visibility) );
}
}
return;
}*/
list<Sprite*> *spriteList = sprites->GetSpritesNear(camera->GetFocusCoordinate(), (float)visibility);
for( list<Sprite*>::const_iterator iter = spriteList->begin(); iter != spriteList->end(); iter++)
{
Coordinate blip;
Sprite *sprite = *iter;
// Calculate the blip coordinate for this sprite
Coordinate wpos = sprite->GetWorldPosition();
WorldToBlip( focus, wpos, blip );
// Use the OpenGL Crop Rectangle to ensure that the blip is on the radar
/* Convert to screen coords */
blip.SetX( blip.GetX() + radar_mid_x );
blip.SetY( blip.GetY() + radar_mid_y );
radarSize = int((sprite->GetRadarSize() / float(visibility)) * (RADAR_HEIGHT / 4.0));
if( radarSize >= 1 ) {
if(sprite->GetID() == Hud::GetTarget() && Timer::GetTicks() % 1000 < 100)
Video::DrawCircle( blip, radarSize, 2, WHITE );
else
Video::DrawCircle( blip, radarSize, 1, sprite->GetRadarColor() );
} else {
if(sprite->GetID() == Hud::GetTarget() && Timer::GetTicks() % 1000 < 100)
Video::DrawCircle( blip, 1, 2, WHITE );
else
Video::DrawPoint( blip, sprite->GetRadarColor() );
}
}
delete spriteList;
}
void Gate::SendToExit(Sprite* ship) {
Sprite* exit = SpriteManager::Instance()->GetSpriteByID(exitID);
if(exit==NULL) {
LogMsg(ERR,"Gate %d cannot send to non-existant exit (%d)",this->GetID(),exitID);
return;
}
float distance = 50.0f;
float exitAngle = normalizeAngle( exit->GetAngle()+180 );
// The Ship's Angle and Momentum should make it appear like it is exiting the Gate
ship->SetWorldPosition( exit->GetWorldPosition() + Coordinate(distance,0).RotateTo( exitAngle ) );
ship->SetMomentum( ship->GetMomentum().RotateTo( exitAngle ) );
ship->SetAngle( exitAngle );
}
/**\brief Draws the target.
*/
void Hud::DrawTarget( void ) {
Sprite* target = SpriteManager::Instance()->GetSpriteByID( targetID );
if(target != NULL) {
int x = target->GetWorldPosition().GetScreenX();
int y = target->GetWorldPosition().GetScreenY();
int r = target->GetRadarSize();
Color c = target->GetRadarColor();
if( Timer::GetTicks() - timeTargeted < OPTION(Uint32,"options/timing/target-zoom")) {
r += Video::GetHalfHeight() - Video::GetHalfHeight()*(Timer::GetTicks()-timeTargeted)/OPTION(Uint32,"options/timing/target-zoom");
}
Video::DrawTarget(x,y,r,r,5,c.r,c.g,c.b);
}
}
/**\brief Get the min/max planet positions. Useful when generating traffic.
* \note Returns the values through the pointer arguments.
*/
void SpriteManager::GetBoundaries(float *north, float *south, float *east, float *west)
{
*north = *south = *east = *west = 0;
list<Sprite *>::iterator i;
for( i = spritelist->begin(); i != spritelist->end(); ++i ) {
Sprite *s = (*i);
if( s->GetDrawOrder() == DRAW_ORDER_PLANET ) {
Coordinate c = s->GetWorldPosition();
if(c.GetY() < *north) *north = c.GetY();
if(c.GetY() > *south) *south = c.GetY();
if(c.GetX() < *west) *west = c.GetX();
if(c.GetX() > *east) *east = c.GetX();
}
}
}
/**\brief Draws the radar.
*/
void Radar::Draw( void ) {
short int radar_mid_x = RADAR_MIDDLE_X + Video::GetWidth() - 129;
short int radar_mid_y = RADAR_MIDDLE_Y + 5;
int radarSize;
list<Sprite*> *spriteList = SpriteManager::Instance()->GetSpritesNear(Camera::Instance()->GetFocusCoordinate(), (float)visibility);
for( list<Sprite*>::const_iterator iter = spriteList->begin(); iter != spriteList->end(); iter++)
{
Coordinate blip;
Sprite *sprite = *iter;
//if( sprite->GetDrawOrder() == DRAW_ORDER_PLAYER ) continue;
// Calculate the blip coordinate for this sprite
Coordinate wpos = sprite->GetWorldPosition();
WorldToBlip( wpos, blip );
// Use the OpenGL Crop Rectangle to ensure that the blip is on the radar
/* Convert to screen coords */
blip.SetX( blip.GetX() + radar_mid_x );
blip.SetY( blip.GetY() + radar_mid_y );
radarSize = int((sprite->GetRadarSize() / float(visibility)) * (RADAR_HEIGHT/4.0));
if( radarSize >= 1 ) {
if(sprite->GetID() == Hud::GetTarget() && Timer::GetTicks() % 1000 < 100)
Video::DrawCircle( blip, radarSize, 2, WHITE );
else
Video::DrawCircle( blip, radarSize, 1, sprite->GetRadarColor() );
} else {
if(sprite->GetID() == Hud::GetTarget() && Timer::GetTicks() % 1000 < 100)
Video::DrawCircle( blip, 1, 2, WHITE );
else
Video::DrawPoint( blip, sprite->GetRadarColor() );
}
}
delete spriteList;
}
/**\brief Draws the radar.
*/
void Radar::Draw( void ) {
short int radar_mid_x = RADAR_MIDDLE_X + Video::GetWidth() - 129;
short int radar_mid_y = RADAR_MIDDLE_Y + 5;
int radarSize;
list<Sprite*> *spriteList = SpriteManager::Instance()->GetSpritesNear(Camera::Instance()->GetFocusCoordinate(), (float)visibility);
for( list<Sprite*>::const_iterator iter = spriteList->begin(); iter != spriteList->end(); iter++)
{
Coordinate blip;
Sprite *sprite = *iter;
//if( sprite->GetDrawOrder() == DRAW_ORDER_PLAYER ) continue;
// Calculate the blip coordinate for this sprite
Coordinate wpos = sprite->GetWorldPosition();
WorldToBlip( wpos, blip );
if( blip.ViolatesBoundary( -(RADAR_HEIGHT / 2.0), (RADAR_WIDTH / 2.0), (RADAR_HEIGHT / 2.0), -(RADAR_WIDTH / 2.0) ) == false ) {
/* blip is on the radar */
/* Convert to screen coords */
blip.SetX( blip.GetX() + radar_mid_x );
blip.SetY( blip.GetY() + radar_mid_y );
radarSize = int((sprite->GetRadarSize() / float(visibility)) * (RADAR_HEIGHT/4.0));
if( radarSize >= 1 ) {
Video::DrawCircle( blip, radarSize, 1, sprite->GetRadarColor() );
} else {
Video::DrawPoint( blip, sprite->GetRadarColor() );
}
}
}
delete spriteList;
}