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Copy pathGlobe.cpp
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executable file
·2018 lines (1781 loc) · 51.9 KB
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/*
* Copyright 2010-2013 OpenXcom Developers.
*
* This file is part of OpenXcom.
*
* OpenXcom is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OpenXcom is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenXcom. If not, see <http://www.gnu.org/licenses/>.
*/
#define _USE_MATH_DEFINES
#include "Globe.h"
#include <cmath>
#include <fstream>
#include "../aresame.h"
#include "../Engine/Action.h"
#include "../Engine/SurfaceSet.h"
#include "../Engine/Timer.h"
#include "../Resource/ResourcePack.h"
#include "Polygon.h"
#include "Polyline.h"
#include "../Engine/FastLineClip.h"
#include "../Engine/Palette.h"
#include "../Engine/Game.h"
#include "../Savegame/SavedGame.h"
#include "../Savegame/GameTime.h"
#include "../Savegame/Base.h"
#include "../Savegame/Country.h"
#include "../Ruleset/RuleCountry.h"
#include "../Interface/Text.h"
#include "../Engine/Font.h"
#include "../Engine/Language.h"
#include "../Engine/Exception.h"
#include "../Ruleset/RuleRegion.h"
#include "../Savegame/Region.h"
#include "../Ruleset/City.h"
#include "../Savegame/Target.h"
#include "../Savegame/Ufo.h"
#include "../Savegame/Craft.h"
#include "../Savegame/Waypoint.h"
#include "../Engine/ShaderMove.h"
#include "../Engine/ShaderRepeat.h"
#include "../Engine/Options.h"
#include "../Savegame/TerrorSite.h"
#include "../Savegame/AlienBase.h"
#include "../Engine/LocalizedText.h"
#include "../Savegame/BaseFacility.h"
#include "../Ruleset/RuleBaseFacility.h"
#include "../Ruleset/RuleCraft.h"
#include "../Ruleset/Ruleset.h"
#include "../Interface/Cursor.h"
namespace OpenXcom
{
const double Globe::ROTATE_LONGITUDE = 0.10;
const double Globe::ROTATE_LATITUDE = 0.06;
namespace
{
///helper class for `Globe` for drawing earth globe with shadows
struct GlobeStaticData
{
///array of shading gradient
Sint16 shade_gradient[240];
///size of x & y of noise surface
const int random_surf_size;
/**
* Function returning normal vector of sphere surface
* @param ox x cord of sphere center
* @param oy y cord of sphere center
* @param r radius of sphere
* @param x cord of point where we getting this vector
* @param y cord of point where we getting this vector
* @return normal vector of sphere surface
*/
inline Cord circle_norm(double ox, double oy, double r, double x, double y)
{
const double limit = r*r;
const double norm = 1./r;
Cord ret;
ret.x = (x-ox);
ret.y = (y-oy);
const double temp = (ret.x)*(ret.x) + (ret.y)*(ret.y);
if(limit > temp)
{
ret.x *= norm;
ret.y *= norm;
ret.z = sqrt(limit - temp)*norm;
return ret;
}
else
{
ret.x = 0.;
ret.y = 0.;
ret.z = 0.;
return ret;
}
}
//initialization
GlobeStaticData() : random_surf_size(60)
{
//filling terminator gradient LUT
for (int i=0; i<240; ++i)
{
int j = i - 120;
if (j<-66) j=-16;
else
if (j<-48) j=-15;
else
if (j<-33) j=-14;
else
if (j<-22) j=-13;
else
if (j<-15) j=-12;
else
if (j<-11) j=-11;
else
if (j<-9) j=-10;
if (j>120) j=19;
else
if (j>98) j=18;
else
if (j>86) j=17;
else
if (j>74) j=16;
else
if (j>54) j=15;
else
if (j>38) j=14;
else
if (j>26) j=13;
else
if (j>18) j=12;
else
if (j>13) j=11;
else
if (j>10) j=10;
else
if (j>8) j=9;
shade_gradient[i]= j+16;
}
}
};
GlobeStaticData static_data;
struct Ocean
{
static inline void func(Uint8& dest, const int&, const int&, const int&, const int&)
{
dest = Palette::blockOffset(12) + 0;
}
};
struct CreateShadow
{
static inline Uint8 getShadowValue(const Uint8& dest, const Cord& earth, const Cord& sun, const Sint16& noise)
{
Cord temp = earth;
//diff
temp -= sun;
//norm
temp.x *= temp.x;
temp.y *= temp.y;
temp.z *= temp.z;
temp.x += temp.z + temp.y;
//we have norm of distance between 2 vectors, now stored in `x`
temp.x -= 2;
temp.x *= 125.;
if (temp.x < -110)
temp.x = -31;
else if (temp.x > 120)
temp.x = 50;
else
temp.x = static_data.shade_gradient[(Sint16)temp.x + 120];
temp.x -= noise;
if(temp.x > 0.)
{
const Sint16 val = (temp.x> 31)? 31 : (Sint16)temp.x;
const int d = dest & helper::ColorGroup;
if(d == Palette::blockOffset(12) || d == Palette::blockOffset(13))
{
//this pixel is ocean
return Palette::blockOffset(12) + val;
}
else
{
//this pixel is land
if (dest==0) return val;
const int s = val / 3;
const int e = dest+s;
if(e > d + helper::ColorShade)
return d + helper::ColorShade;
return e;
}
}
else
{
const int d = dest & helper::ColorGroup;
if(d == Palette::blockOffset(12) || d == Palette::blockOffset(13))
{
//this pixel is ocean
return Palette::blockOffset(12);
}
else
{
//this pixel is land
return dest;
}
}
}
static inline void func(Uint8& dest, const Cord& earth, const Cord& sun, const Sint16& noise, const int&)
{
if(dest && earth.z)
dest = getShadowValue(dest, earth, sun, noise);
else
dest = 0;
}
};
}//namespace
/**
* Sets up a globe with the specified size and position.
* @param game Pointer to core game.
* @param cenX X position of the center of the globe.
* @param cenY Y position of the center of the globe.
* @param width Width in pixels.
* @param height Height in pixels.
* @param x X position in pixels.
* @param y Y position in pixels.
*/
Globe::Globe(Game *game, int cenX, int cenY, int width, int height, int x, int y):
InteractiveSurface(width, height, x, y),
_rotLon(0.0), _rotLat(0.0),
_hoverLon(0.0), _hoverLat(0.0),
_cenX(cenX), _cenY(cenY), _game(game),
_blink(true), _hover(false), _cacheLand()
{
_texture = new SurfaceSet(*_game->getResourcePack()->getSurfaceSet("TEXTURE.DAT"));
_countries = new Surface(width, height, x, y);
_markers = new Surface(width, height, x, y);
_radars = new Surface(width, height, x, y);
_clipper = new FastLineClip(x, x+width, y, y+height);
// Animation timers
_blinkTimer = new Timer(100);
_blinkTimer->onTimer((SurfaceHandler)&Globe::blink);
_blinkTimer->start();
_rotTimer = new Timer(Options::geoScrollSpeed);
_rotTimer->onTimer((SurfaceHandler)&Globe::rotate);
// Globe markers
_mkXcomBase = new Surface(3, 3);
_mkXcomBase->lock();
_mkXcomBase->setPixel(0, 0, 9);
_mkXcomBase->setPixel(1, 0, 9);
_mkXcomBase->setPixel(2, 0, 9);
_mkXcomBase->setPixel(0, 1, 9);
_mkXcomBase->setPixel(2, 1, 9);
_mkXcomBase->setPixel(0, 2, 9);
_mkXcomBase->setPixel(1, 2, 9);
_mkXcomBase->setPixel(2, 2, 9);
_mkXcomBase->unlock();
_mkAlienBase = new Surface(3, 3);
_mkAlienBase->lock();
_mkAlienBase->setPixel(0, 0, 1);
_mkAlienBase->setPixel(1, 0, 1);
_mkAlienBase->setPixel(2, 0, 1);
_mkAlienBase->setPixel(0, 1, 1);
_mkAlienBase->setPixel(2, 1, 1);
_mkAlienBase->setPixel(0, 2, 1);
_mkAlienBase->setPixel(1, 2, 1);
_mkAlienBase->setPixel(2, 2, 1);
_mkAlienBase->unlock();
_mkCraft = new Surface(3, 3);
_mkCraft->lock();
_mkCraft->setPixel(1, 0, 11);
_mkCraft->setPixel(0, 1, 11);
_mkCraft->setPixel(2, 1, 11);
_mkCraft->setPixel(1, 2, 11);
_mkCraft->unlock();
_mkWaypoint = new Surface(3, 3);
_mkWaypoint->lock();
_mkWaypoint->setPixel(0, 0, 3);
_mkWaypoint->setPixel(0, 2, 3);
_mkWaypoint->setPixel(1, 1, 3);
_mkWaypoint->setPixel(2, 0, 3);
_mkWaypoint->setPixel(2, 2, 3);
_mkWaypoint->unlock();
_mkCity = new Surface(3, 3);
_mkCity->lock();
_mkCity->setPixel(0, 0, 14);
_mkCity->setPixel(1, 0, 14);
_mkCity->setPixel(2, 0, 14);
_mkCity->setPixel(0, 1, 14);
_mkCity->setPixel(1, 1, 11);
_mkCity->setPixel(2, 1, 14);
_mkCity->setPixel(0, 2, 14);
_mkCity->setPixel(1, 2, 14);
_mkCity->setPixel(2, 2, 14);
_mkCity->unlock();
_mkFlyingUfo = new Surface(3, 3);
_mkFlyingUfo->lock();
_mkFlyingUfo->setPixel(1, 0, 13);
_mkFlyingUfo->setPixel(0, 1, 13);
_mkFlyingUfo->setPixel(1, 1, 13);
_mkFlyingUfo->setPixel(2, 1, 13);
_mkFlyingUfo->setPixel(1, 2, 13);
_mkFlyingUfo->unlock();
_mkLandedUfo = new Surface(3, 3);
_mkLandedUfo->lock();
_mkLandedUfo->setPixel(0, 0, 7);
_mkLandedUfo->setPixel(0, 2, 7);
_mkLandedUfo->setPixel(1, 1, 7);
_mkLandedUfo->setPixel(2, 0, 7);
_mkLandedUfo->setPixel(2, 2, 7);
_mkLandedUfo->unlock();
_mkCrashedUfo = new Surface(3, 3);
_mkCrashedUfo->lock();
_mkCrashedUfo->setPixel(0, 0, 5);
_mkCrashedUfo->setPixel(0, 2, 5);
_mkCrashedUfo->setPixel(1, 1, 5);
_mkCrashedUfo->setPixel(2, 0, 5);
_mkCrashedUfo->setPixel(2, 2, 5);
_mkCrashedUfo->unlock();
_mkAlienSite = new Surface(3, 3);
_mkAlienSite->lock();
_mkAlienSite->setPixel(1, 0, 1);
_mkAlienSite->setPixel(0, 1, 1);
_mkAlienSite->setPixel(1, 1, 1);
_mkAlienSite->setPixel(2, 1, 1);
_mkAlienSite->setPixel(1, 2, 1);
_mkAlienSite->unlock();
_cenLon = _game->getSavedGame()->getGlobeLongitude();
_cenLat = _game->getSavedGame()->getGlobeLatitude();
_zoom = _game->getSavedGame()->getGlobeZoom();
setupRadii(width, height);
//filling random noise "texture"
_randomNoiseData.resize(static_data.random_surf_size * static_data.random_surf_size);
for(size_t i=0; i<_randomNoiseData.size(); ++i)
_randomNoiseData[i] = rand()%4;
cachePolygons();
}
/**
* Deletes the contained surfaces.
*/
Globe::~Globe()
{
delete _texture;
delete _blinkTimer;
delete _rotTimer;
delete _countries;
delete _markers;
delete _mkXcomBase;
delete _mkAlienBase;
delete _mkCraft;
delete _mkWaypoint;
delete _mkCity;
delete _mkFlyingUfo;
delete _mkLandedUfo;
delete _mkCrashedUfo;
delete _mkAlienSite;
delete _radars;
delete _clipper;
for (std::list<Polygon*>::iterator i = _cacheLand.begin(); i != _cacheLand.end(); ++i)
{
delete *i;
}
}
/**
* Converts a polar point into a cartesian point for
* mapping a polygon onto the 3D-looking globe.
* @param lon Longitude of the polar point.
* @param lat Latitude of the polar point.
* @param x Pointer to the output X position.
* @param y Pointer to the output Y position.
*/
void Globe::polarToCart(double lon, double lat, Sint16 *x, Sint16 *y) const
{
// Orthographic projection
*x = _cenX + (Sint16)floor(_radius[_zoom] * cos(lat) * sin(lon - _cenLon));
*y = _cenY + (Sint16)floor(_radius[_zoom] * (cos(_cenLat) * sin(lat) - sin(_cenLat) * cos(lat) * cos(lon - _cenLon)));
}
void Globe::polarToCart(double lon, double lat, double *x, double *y) const
{
// Orthographic projection
*x = _cenX + _radius[_zoom] * cos(lat) * sin(lon - _cenLon);
*y = _cenY + _radius[_zoom] * (cos(_cenLat) * sin(lat) - sin(_cenLat) * cos(lat) * cos(lon - _cenLon));
}
/**
* Converts a cartesian point into a polar point for
* mapping a globe click onto the flat world map.
* @param x X position of the cartesian point.
* @param y Y position of the cartesian point.
* @param lon Pointer to the output longitude.
* @param lat Pointer to the output latitude.
*/
void Globe::cartToPolar(Sint16 x, Sint16 y, double *lon, double *lat) const
{
// Orthographic projection
x -= _cenX;
y -= _cenY;
double rho = sqrt((double)(x*x + y*y));
double c = asin(rho / _radius[_zoom]);
if ( AreSame(rho, 0.0) )
{
*lat = _cenLat;
*lon = _cenLon;
}
else
{
*lat = asin((y * sin(c) * cos(_cenLat)) / rho + cos(c) * sin(_cenLat));
*lon = atan2(x * sin(c),(rho * cos(_cenLat) * cos(c) - y * sin(_cenLat) * sin(c))) + _cenLon;
}
// Keep between 0 and 2xPI
while (*lon < 0)
*lon += 2 * M_PI;
while (*lon >= 2 * M_PI)
*lon -= 2 * M_PI;
}
/**
* Checks if a polar point is on the back-half of the globe,
* invisible to the player.
* @param lon Longitude of the point.
* @param lat Latitude of the point.
* @return True if it's on the back, False if it's on the front.
*/
bool Globe::pointBack(double lon, double lat) const
{
double c = cos(_cenLat) * cos(lat) * cos(lon - _cenLon) + sin(_cenLat) * sin(lat);
return c < 0;
}
/** Return latitude of last visible to player point on given longitude.
* @param lon Longitude of the point.
* @return Longitude of last visible point.
*/
double Globe::lastVisibleLat(double lon) const
{
// double c = cos(_cenLat) * cos(lat) * cos(lon - _cenLon) + sin(_cenLat) * sin(lat);
// tan(lat) = -cos(_cenLat) * cos(lon - _cenLon)/sin(_cenLat) ;
return atan(-cos(_cenLat) * cos(lon - _cenLon)/sin(_cenLat));
}
/**
* Checks if a polar point is inside a certain polygon.
* @param lon Longitude of the point.
* @param lat Latitude of the point.
* @param poly Pointer to the polygon.
* @return True if it's inside, False if it's outside.
*/
bool Globe::insidePolygon(double lon, double lat, Polygon *poly) const
{
bool backFace = true;
for (int i = 0; i < poly->getPoints(); ++i)
{
backFace = backFace && pointBack(poly->getLongitude(i), poly->getLatitude(i));
}
if (backFace != pointBack(lon, lat))
return false;
bool odd = false;
for (int i = 0; i < poly->getPoints(); ++i)
{
int j = (i + 1) % poly->getPoints();
/*double x = lon, y = lat,
x_i = poly->getLongitude(i), y_i = poly->getLatitude(i),
x_j = poly->getLongitude(j), y_j = poly->getLatitude(j);*/
double x, y, x_i, x_j, y_i, y_j;
polarToCart(poly->getLongitude(i), poly->getLatitude(i), &x_i, &y_i);
polarToCart(poly->getLongitude(j), poly->getLatitude(j), &x_j, &y_j);
polarToCart(lon, lat, &x, &y);
if (((y_i < y && y_j >= y) || (y_j < y && y_i >= y)) && (x_i <= x || x_j <= x))
{
odd ^= (x_i + (y - y_i) / (y_j - y_i) * (x_j - x_i) < x);
}
}
return odd;
}
/**
* Loads a series of map polar coordinates in X-Com format,
* converts them and stores them in a set of polygons.
* @param filename Filename of the DAT file.
* @param polygons Pointer to the polygon set.
* @sa http://www.ufopaedia.org/index.php?title=WORLD.DAT
*/
void Globe::loadDat(const std::string &filename, std::list<Polygon*> *polygons)
{
// Load file
std::ifstream mapFile (filename.c_str(), std::ios::in | std::ios::binary);
if (!mapFile)
{
throw Exception(filename + " not found");
}
short value[10];
while (mapFile.read((char*)&value, sizeof(value)))
{
Polygon* poly;
int points;
for (int i = 0; i < 10; ++i)
{
value[i] = SDL_SwapLE16(value[i]);
}
if (value[6] != -1)
{
points = 4;
}
else
{
points = 3;
}
poly = new Polygon(points);
for (int i = 0, j = 0; i < points; ++i)
{
// Correct X-Com degrees and convert to radians
double lonRad = value[j++] * 0.125f * M_PI / 180;
double latRad = value[j++] * 0.125f * M_PI / 180;
poly->setLongitude(i, lonRad);
poly->setLatitude(i, latRad);
}
poly->setTexture(value[8]);
polygons->push_back(poly);
}
if (!mapFile.eof())
{
throw Exception("Invalid globe map");
}
mapFile.close();
}
/**
* Sets a leftwards rotation speed and starts the timer.
*/
void Globe::rotateLeft()
{
_rotLon = -ROTATE_LONGITUDE / (_zoom+1);
if (!_rotTimer->isRunning()) _rotTimer->start();
}
/**
* Sets a rightwards rotation speed and starts the timer.
*/
void Globe::rotateRight()
{
_rotLon = ROTATE_LONGITUDE/ (_zoom+1);
if (!_rotTimer->isRunning()) _rotTimer->start();
}
/**
* Sets a upwards rotation speed and starts the timer.
*/
void Globe::rotateUp()
{
_rotLat = -ROTATE_LATITUDE / (_zoom+1);
if (!_rotTimer->isRunning()) _rotTimer->start();
}
/**
* Sets a downwards rotation speed and starts the timer.
*/
void Globe::rotateDown()
{
_rotLat = ROTATE_LATITUDE / (_zoom+1);
if (!_rotTimer->isRunning()) _rotTimer->start();
}
/**
* Resets the rotation speed and timer.
*/
void Globe::rotateStop()
{
_rotLon = 0.0;
_rotLat = 0.0;
_rotTimer->stop();
}
/**
* Resets longitude rotation speed and timer.
*/
void Globe::rotateStopLon()
{
_rotLon = 0.0;
if (AreSame(_rotLat, 0.0))
{
_rotTimer->stop();
}
}
/**
* Resets latitude rotation speed and timer.
*/
void Globe::rotateStopLat()
{
_rotLat = 0.0;
if (AreSame(_rotLon, 0.0))
{
_rotTimer->stop();
}
}
/**
* Increases the zoom level on the globe.
*/
void Globe::zoomIn()
{
if (_zoom < _radius.size() - 1)
{
_zoom++;
_game->getSavedGame()->setGlobeZoom(_zoom);
cachePolygons();
}
}
/**
* Decreases the zoom level on the globe.
*/
void Globe::zoomOut()
{
if (_zoom > 0)
{
_zoom--;
_game->getSavedGame()->setGlobeZoom(_zoom);
cachePolygons();
}
}
/**
* Zooms the globe out as far as possible.
*/
void Globe::zoomMin()
{
_zoom = 0;
_game->getSavedGame()->setGlobeZoom(_zoom);
cachePolygons();
}
/**
* Zooms the globe in as close as possible.
*/
void Globe::zoomMax()
{
_zoom = _radius.size() - 1;
_game->getSavedGame()->setGlobeZoom(_zoom);
cachePolygons();
}
/**
* Rotates the globe to center on a certain
* polar point on the world map.
* @param lon Longitude of the point.
* @param lat Latitude of the point.
*/
void Globe::center(double lon, double lat)
{
_cenLon = lon;
_cenLat = lat;
_game->getSavedGame()->setGlobeLongitude(_cenLon);
_game->getSavedGame()->setGlobeLatitude(_cenLat);
cachePolygons();
}
/**
* Checks if a polar point is inside the globe's landmass.
* @param lon Longitude of the point.
* @param lat Latitude of the point.
* @return True if it's inside, False if it's outside.
*/
bool Globe::insideLand(double lon, double lat) const
{
bool inside = false;
// We're only temporarily changing cenLon/cenLat so the "const" is actually preserved
Globe* const globe = const_cast<Globe* const>(this); // WARNING: BAD CODING PRACTICE
double oldLon = _cenLon, oldLat = _cenLat;
globe->_cenLon = lon;
globe->_cenLat = lat;
for (std::list<Polygon*>::iterator i = _game->getResourcePack()->getPolygons()->begin(); i != _game->getResourcePack()->getPolygons()->end() && !inside; ++i)
{
inside = insidePolygon(lon, lat, *i);
}
globe->_cenLon = oldLon;
globe->_cenLat = oldLat;
return inside;
}
/**
* Switches the amount of detail shown on the globe.
* With detail on, country and city details are shown when zoomed in.
*/
void Globe::toggleDetail()
{
Options::globeDetail = !Options::globeDetail;
drawDetail();
}
/**
* Checks if a certain target is near a certain cartesian point
* (within a circled area around it) over the globe.
* @param target Pointer to target.
* @param x X coordinate of point.
* @param y Y coordinate of point.
* @return True if it's near, false otherwise.
*/
bool Globe::targetNear(Target* target, int x, int y) const
{
Sint16 tx, ty;
if (pointBack(target->getLongitude(), target->getLatitude()))
return false;
polarToCart(target->getLongitude(), target->getLatitude(), &tx, &ty);
int dx = x - tx;
int dy = y - ty;
return (dx * dx + dy * dy <= NEAR_RADIUS);
}
/**
* Returns a list of all the targets currently near a certain
* cartesian point over the globe.
* @param x X coordinate of point.
* @param y Y coordinate of point.
* @param craft Only get craft targets.
* @return List of pointers to targets.
*/
std::vector<Target*> Globe::getTargets(int x, int y, bool craft) const
{
std::vector<Target*> v;
if (!craft)
{
for (std::vector<Base*>::iterator i = _game->getSavedGame()->getBases()->begin(); i != _game->getSavedGame()->getBases()->end(); ++i)
{
if ((*i)->getLongitude() == 0.0 && (*i)->getLatitude() == 0.0)
continue;
if (targetNear((*i), x, y))
{
v.push_back(*i);
}
for (std::vector<Craft*>::iterator j = (*i)->getCrafts()->begin(); j != (*i)->getCrafts()->end(); ++j)
{
if ((*j)->getLongitude() == (*i)->getLongitude() && (*j)->getLatitude() == (*i)->getLatitude() && (*j)->getDestination() == 0)
continue;
if (targetNear((*j), x, y))
{
v.push_back(*j);
}
}
}
}
for (std::vector<Ufo*>::iterator i = _game->getSavedGame()->getUfos()->begin(); i != _game->getSavedGame()->getUfos()->end(); ++i)
{
if (!(*i)->getDetected())
continue;
if (targetNear((*i), x, y))
{
v.push_back(*i);
}
}
for (std::vector<Waypoint*>::iterator i = _game->getSavedGame()->getWaypoints()->begin(); i != _game->getSavedGame()->getWaypoints()->end(); ++i)
{
if (targetNear((*i), x, y))
{
v.push_back(*i);
}
}
for (std::vector<TerrorSite*>::iterator i = _game->getSavedGame()->getTerrorSites()->begin(); i != _game->getSavedGame()->getTerrorSites()->end(); ++i)
{
if (targetNear((*i), x, y))
{
v.push_back(*i);
}
}
for (std::vector<AlienBase*>::iterator i = _game->getSavedGame()->getAlienBases()->begin(); i != _game->getSavedGame()->getAlienBases()->end(); ++i)
{
if (!(*i)->isDiscovered())
{
continue;
}
if (targetNear((*i), x, y))
{
v.push_back(*i);
}
}
return v;
}
/**
* Takes care of pre-calculating all the polygons currently visible
* on the globe and caching them so they only need to be recalculated
* when the globe is actually moved.
*/
void Globe::cachePolygons()
{
cache(_game->getResourcePack()->getPolygons(), &_cacheLand);
_redraw = true;
}
/**
* Caches a set of polygons.
* @param polygons Pointer to list of polygons.
* @param cache Pointer to cache.
*/
void Globe::cache(std::list<Polygon*> *polygons, std::list<Polygon*> *cache)
{
// Clear existing cache
for (std::list<Polygon*>::iterator i = cache->begin(); i != cache->end(); ++i)
{
delete *i;
}
cache->clear();
// Pre-calculate values to cache
for (std::list<Polygon*>::iterator i = polygons->begin(); i != polygons->end(); ++i)
{
// Is quad on the back face?
bool backFace = true;
for (int j = 0; j < (*i)->getPoints(); ++j)
{
backFace = backFace && pointBack((*i)->getLongitude(j), (*i)->getLatitude(j));
}
if (backFace)
continue;
Polygon* p = new Polygon(**i);
// Convert coordinates
for (int j = 0; j < p->getPoints(); ++j)
{
Sint16 x, y;
polarToCart(p->getLongitude(j), p->getLatitude(j), &x, &y);
p->setX(j, x);
p->setY(j, y);
}
cache->push_back(p);
}
}
/**
* Replaces a certain amount of colors in the palette of the globe.
* @param colors Pointer to the set of colors.
* @param firstcolor Offset of the first color to replace.
* @param ncolors Amount of colors to replace.
*/
void Globe::setPalette(SDL_Color *colors, int firstcolor, int ncolors)
{
Surface::setPalette(colors, firstcolor, ncolors);
_texture->setPalette(colors, firstcolor, ncolors);
_countries->setPalette(colors, firstcolor, ncolors);
_markers->setPalette(colors, firstcolor, ncolors);
_mkXcomBase->setPalette(colors, firstcolor, ncolors);
_mkAlienBase->setPalette(colors, firstcolor, ncolors);
_mkCraft->setPalette(colors, firstcolor, ncolors);
_mkWaypoint->setPalette(colors, firstcolor, ncolors);
_mkCity->setPalette(colors, firstcolor, ncolors);
_mkFlyingUfo->setPalette(colors, firstcolor, ncolors);
_mkLandedUfo->setPalette(colors, firstcolor, ncolors);
_mkCrashedUfo->setPalette(colors, firstcolor, ncolors);
_mkAlienSite->setPalette(colors, firstcolor, ncolors);
_radars->setPalette(colors, firstcolor, ncolors);
}
/**
* Keeps the animation timers running.
*/
void Globe::think()
{
_blinkTimer->think(0, this);
_rotTimer->think(0, this);
}
/**
* Makes the globe markers blink.
*/
void Globe::blink()
{
_blink = !_blink;
int off = 0;
if (_blink)
off = -1;
else
off = 1;
_mkXcomBase->offset(off);
_mkAlienBase->offset(off);
_mkCraft->offset(off);
_mkWaypoint->offset(off);
_mkFlyingUfo->offset(off);
_mkLandedUfo->offset(off);
_mkCrashedUfo->offset(off);
_mkAlienSite->offset(off);
drawMarkers();
}
/**
* Rotates the globe by a set amount. Necessary
* since the globe keeps rotating while a button
* is pressed down.
*/
void Globe::rotate()
{
_cenLon += _rotLon;
_cenLat += _rotLat;
_game->getSavedGame()->setGlobeLongitude(_cenLon);
_game->getSavedGame()->setGlobeLatitude(_cenLat);
cachePolygons();
}
/**
* Draws the whole globe, part by part.
*/
void Globe::draw()
{
Surface::draw();
drawOcean();
drawLand();
drawRadars();
drawShadow();
drawMarkers();
drawDetail();
drawFlights();
}
/**
* Renders the ocean, shading it according to the time of day.
*/
void Globe::drawOcean()
{
lock();
drawCircle(_cenX+1, _cenY, _radius[_zoom]+20, Palette::blockOffset(12)+0);
// ShaderDraw<Ocean>(ShaderSurface(this));
unlock();