void SDLMainLoop::initSDL() {
if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_AUDIO | SDL_INIT_JOYSTICK) < 0) {
LOG2(SDL, ERROR, "Can't init SDL: " << SDL_GetError());
}
if(TTF_Init() < 0) {
LOG2(SDL, ERROR, "Can't init SDL_ttf: " << TTF_GetError());
}
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_WM_SetCaption("HexRacer", NULL);
int width = GET_SETTING("display.width", 0);
int height = GET_SETTING("display.height", 0);
int bpp = GET_SETTING("display.bpp", 0);
sdl_init_flags = SDL_HWSURFACE | SDL_OPENGL | SDL_RESIZABLE;
if(GET_SETTING("display.fullscreen", 0)) {
sdl_init_flags |= SDL_FULLSCREEN;
}
SDL_SetVideoMode(width, height, bpp, sdl_init_flags);
projector.setCurrentDimensions(Point2D(width, height));
}
void PhysicalPlayer::applyAcceleration(double acceleration) {
if(!onGround) return;
rigidBody->activate();
double constant = GET_SETTING("physics.constant.accel", 1.0);
double brakeConstant = GET_SETTING("physics.constant.brake", 5.0);
btTransform transform = rigidBody->getWorldTransform();
btMatrix3x3 matrix(transform.getRotation());
Math::Point orientation = Converter::toPoint(matrix
* Converter::toVector(Math::Point(0.0, 0.0, 1.0) * constant));
//LOG(PHYSICS, "accel at " << Misc::Sleeper::getTimeMilliseconds());
if(getSliding()) {
constant *= GET_SETTING("physics.slipstate.accelfactor", 1.0);
}
if (acceleration >= 0.0 || getLinearVelocity().dotProduct(orientation) < 0.0) {
double paintInfluence = (speedBoost - 1.0)
* GET_SETTING("game.paint.boostinfluence", 1.0) + 1.0;
applyForce(orientation * constant * acceleration * paintInfluence * traction);
}
else {
applyForce(orientation * brakeConstant * acceleration * traction);
}
updatePhysicalInfo();
}
void FontManager::loadFonts() {
TTF_Font *font = TTF_OpenFont(
GET_SETTING("font", "data/gui/DejaVuSans.ttf").c_str(),
GET_SETTING("font.size", 16));
if(!font) {
LOG2(GUI, ERROR, "Can't load normal font! "
<< GET_SETTING("font", "data/DejaVuSans.ttf"));
}
fontList["normal"] = font;
currentKind = "normal";
}
void Suspension::calculateSuspensionForPlayer(Object::Player *player, double forceScale) {
double front_sep = GET_SETTING("physics.wheel.frontsep", 0.4);
double front_z = GET_SETTING("physics.wheel.frontz", 0.68);
double back_sep = GET_SETTING("physics.wheel.backsep", 0.4);
double back_z = GET_SETTING("physics.wheel.backz", -0.68);
static const Math::Point suspensionPoint[] = {
Math::Point(front_sep, -0.2 + 0.05,front_z),
Math::Point(-front_sep, -0.2 + 0.05, front_z),
Math::Point(-back_sep, -0.2 + 0.05, back_z),
Math::Point(back_sep, -0.2 + 0.05, back_z),
};
// downward axis of suspension springs
Math::Point axis = -player->getPhysicalObject()->getUpDirection();
axis.normalize();
double downFactor = calculateDownFactor(axis);
player->getPhysicalObject()->setTraction(std::sqrt(downFactor));
for(int wheel = 0; wheel < 4; wheel ++) {
Math::Matrix matrix = player->getTransformation();
// suspension attachment point in world space
Math::Point point = matrix * suspensionPoint[wheel];
// rotated but not translated suspension attachment point
Math::Point forcePoint = suspensionPoint[wheel];
forcePoint.setW(0.0);
forcePoint = matrix * forcePoint;
// create a Spring object
Spring spring(point, axis);
spring.setMinLength(
GET_SETTING("physics.driving.minlength", 0.0));
spring.setRestLength(
GET_SETTING("physics.driving.restlength", 1.0));
spring.setStretchLength(
GET_SETTING("physics.driving.stretchlength", 1.0));
// restore last frame's displacement in the Spring object
spring.setLastDisplacement(
player->getPhysicalObject()->getSpring(wheel));
// calculate and apply actual force
Displacement displacement = spring.doRaycast();
double forceFactor = spring.calculateForceFactor(displacement);
player->applyForce(axis * forceFactor * downFactor * forceScale, forcePoint);
// record displacement for next time
player->getPhysicalObject()->setSpring(wheel, displacement);
// find the position of the wheel
double down = displacement.getDisplacement();
player->setSuspension(wheel,
suspensionPoint[wheel]
+ Math::Point(0.0, -down - GET_SETTING("physics.wheel.diameter", 0.2), 0.0));
}
}
void WeightedDriver::detectSittingStill() {
Object::Player *player = getPlayer();
// if sitting still for too long, request a warp
intention.setReset(false);
const Map::PathNode* last_pathnode = nearestPathNode;
nearestPathNode = player->getPathTracker()->getCurrentNode();
if (nearestPathNode != NULL && nearestPathNode == last_pathnode
&& player->getPhysicalObject()->getLinearSpeed() < 4.0) {
unsigned long now = Misc::Sleeper::getTimeMilliseconds();
if(!sittingStill) {
sittingStill = true;
sittingStillSince = now;
}
else if(sittingStillSince + GET_SETTING("ai.resettimer", 3000) < now) {
LOG(PHYSICS, "Player " << player->getID() << " is trying to reset");
intention.setReset(true);
sittingStill = false;
}
}
else sittingStill = false;
}
void PhysicalPlayer::applyTurning(double amount) {
if(!onGround) return;
rigidBody->activate();
double constant = GET_SETTING("physics.constant.turn", 1.0);
double centripetalConstant
= GET_SETTING("physics.constant.centripetal", 1.0);
//double leanConstant = GET_SETTING("physics.constant.lean", 1.0);
Math::Matrix matrix = getTransformation();
Math::Point forwardAxis = matrix * Math::Point(0.0, 0.0, 1.0, 0.0);
Math::Point centripetalAxis = matrix * Math::Point(-1.0, 0.0, 0.0, 0.0);
forwardAxis.normalize();
centripetalAxis.normalize();
double speed = getLinearVelocity().length();
#if 0
// turn in the opposite direction when travelling backwards
if (getLinearVelocity().dotProduct(forwardAxis) < 0) {
speed = -speed;
}
#endif
double speedFactor = GET_SETTING("physics.turning.speedfactor", 0.5);
double speedThreshhold = GET_SETTING("physics.turning.speedthreshhold", 15.0);
double falloffFactor = GET_SETTING("physics.turning.fallofffactor", 0.25);
double turning_factor = GET_SETTING("physics.turning.constant", 1.0);
if (speed <= speedThreshhold) {
turning_factor += sqrt(speed/speedThreshhold)*(speed*speedFactor);
}
else {
turning_factor += (speedThreshhold*speedFactor)*(1.0/(1.0+(speed-speedThreshhold)*falloffFactor));
}
// turn in the opposite direction when travelling backwards
if (getLinearVelocity().dotProduct(forwardAxis) < 0) {
turning_factor = -turning_factor;
}
if(getSliding()) {
centripetalConstant *= GET_SETTING("physics.slipstate.centripetalfactor", 1.0);
constant *= GET_SETTING("physics.slipstate.turnfactor", 1.0);
}
applyForce(centripetalAxis * centripetalConstant * turning_factor * amount);
applyTorque(-getUpDirection() * constant * turning_factor * amount);
// twist the car in response to a sharp turn
//applyTorque(getFrontDirection() * leanConstant * turning_factor * amount);
updatePhysicalInfo();
}
void Suspension::applyDragForce(Object::Player *player, double forceScale) {
Physics::PhysicalPlayer *physicalPlayer = player->getPhysicalObject();
Math::Point linearVelocity = physicalPlayer->getLinearVelocity();
Math::Point angularVelocity = physicalPlayer->getAngularVelocity();
double linear;
double angular;
double sideways;
if (player->getOnGround()) {
linear = GET_SETTING("physics.driving.lineardrag", 0.1)*player->getPhysicalObject()->getTraction();
angular = GET_SETTING("physics.driving.angulardrag", 0.1)*player->getPhysicalObject()->getTraction();
sideways = GET_SETTING("physics.driving.sidewaysdrag", 0.1)*player->getPhysicalObject()->getTraction();
}
else {
linear = GET_SETTING("physics.driving.airlineardrag", 0.1);
angular = GET_SETTING("physics.driving.airangulardrag", 0.1);
sideways = GET_SETTING("physics.driving.airsidewaysdrag", 0.1);
}
Math::Point linearDrag = -linear * linearVelocity;
Math::Point angularDrag = -angular * angularVelocity;
physicalPlayer->applyForce(linearDrag * forceScale);
physicalPlayer->applyTorque(angularDrag * forceScale);
// sideways drag (prevent slipping)
Math::Point sidewaysAxis = physicalPlayer->getRightDirection();
double sidewaysSpeed = linearVelocity.dotProduct(sidewaysAxis);
Math::Point sidewaysDrag = -sideways * sidewaysSpeed * sidewaysAxis;
double enterSlipState = GET_SETTING("physics.slipstate.enter", 1.0);
double exitSlipState = GET_SETTING("physics.slipstate.exit", 1.0);
if(std::fabs(sidewaysSpeed) >= enterSlipState) {
physicalPlayer->setSliding(true);
}
if(std::fabs(sidewaysSpeed) <= exitSlipState) {
physicalPlayer->setSliding(false);
}
//LOG(PHYSICS, "sideways " << sidewaysSpeed << "\t" << physicalPlayer->getSliding());
if(physicalPlayer->getSliding()) {
sidewaysDrag *= GET_SETTING("physics.slipstate.sidewaysfactor", 1.0);
}
physicalPlayer->applyForce(sidewaysDrag*forceScale);
}
double Suspension::Spring::calculateForceFactor(
const Displacement &thisDisplacement) {
/*LOG(PHYSICS, "spring displacement: " << thisDisplacement.getDisplacement()
<< " (" << thisDisplacement.isOnGround() << ")");*/
if(!thisDisplacement.isOnGround()) {
return 0.0;
}
double displacement = thisDisplacement.getDisplacement();
double displacementSpeed
= lastDisplacement.getDisplacement() - displacement;
if(!lastDisplacement.isOnGround()) {
displacementSpeed = 0.0; // no damping force when first hit the ground
}
double GRAVITY = GET_SETTING("physics.constant.gravity", 9.81);
static const double VEHICLE_WEIGHT = 2.0;
static const double NORMAL_FORCE = (GRAVITY * VEHICLE_WEIGHT) / 4.0;
static const double K_FACTOR = 100.0;
static const double INITIAL_K = (K_FACTOR / VEHICLE_WEIGHT / 4.0);
static const double INITIAL_C = 2 * std::sqrt(INITIAL_K * VEHICLE_WEIGHT);
double K = GET_SETTING("physics.driving.constant.k", 1.0) * INITIAL_K;
double C = GET_SETTING("physics.driving.constant.c", 1.0) * INITIAL_C;
//LOG(PHYSICS, "normal: " << -NORMAL_FORCE << ", -K*disp: " << -K*displacement);
//LOG(PHYSICS, "C*disp: " << C*displacementSpeed);
double factor
= -NORMAL_FORCE + (K * displacement)
+ (-C * displacementSpeed);
// prevent springs from sucking the ground in
if(factor > 0.0) factor = 0.0;
//LOG(PHYSICS, "factor: " << factor);
//LOG(PHYSICS, " " << -K*displacement << ", " << C*displacementSpeed);
return factor;
}
const std::list<BonusMessageQueue::BonusMessage>& BonusMessageQueue::getQueue() {
unsigned long current_time = World::TimeElapsed::getInstance().getGameTime();
int duration = GET_SETTING("hud.bonusmessages.appearduration", 2000);
while (!messageQueue.empty() && (*messageQueue.begin()).appearTime+duration < current_time)
messageQueue.pop_front();
return messageQueue;
}
void PaintSubsystem::playerErase(Object::Player* player) {
if (GET_SETTING("game.paint.allowerase", true)) {
std::vector<Math::HexHeightMap::LayeredHexIndex> changed_indices;
paintManager->colorCellsInRadius(player->getPosition(), PAINTING_RADIUS, -1, false, &changed_indices);
if (Bonus::GlobalBonusManager::getInstance())
Bonus::GlobalBonusManager::getInstance()->getPlayerBonuses(player->getID()).playerErase(static_cast<int>(changed_indices.size()));
}
}
void Suspension::checkForWheelsOnGround() {
if(!GET_SETTING("physics.driving.enablesuspension", 0)) {
return;
}
Object::WorldManager::PlayerIteratorType it
= worldManager->getPlayerIterator();
while(it.hasNext()) {
Object::Player *player = it.next();
int onGround = wheelsOnGround(player->getID());
player->setOnGround(onGround > 2);
}
}
void Suspension::applySuspension(double forceScale) {
if(!GET_SETTING("physics.driving.enablesuspension", 0)) {
return;
}
Object::WorldManager::PlayerIteratorType it
= worldManager->getPlayerIterator();
while(it.hasNext()) {
Object::Player *player = it.next();
applyDragForce(player, forceScale);
calculateSuspensionForPlayer(player, forceScale);
}
}
void SDLMainLoop::changeScreenModeHandler(Event::ChangeScreenMode *event) {
int width = event->getWidth();
int height = event->getHeight();
int bpp = event->getBPP();
bool fullscreen = event->getFullscreen();
#ifndef WIN32
// special case: if just toggling fullscreen, and the operating system
// supports it, can just call ToggleFullScreen instead of setting the mode
if(width == GET_SETTING("display.width", 0)
&& height == GET_SETTING("display.height", 0)
&& bpp == GET_SETTING("display.bpp", 0)
&& fullscreen != GET_SETTING("display.fullscreen", 0)) {
if(SDL_WM_ToggleFullScreen(SDL_GetVideoSurface())) return;
}
#endif
Settings::SettingsManager::getInstance()->set(
"display.width", Misc::StreamAsString() << width);
Settings::SettingsManager::getInstance()->set(
"display.height", Misc::StreamAsString() << height);
Settings::SettingsManager::getInstance()->set(
"display.bpp", Misc::StreamAsString() << bpp);
Settings::SettingsManager::getInstance()->set(
"display.fullscreen", Misc::StreamAsString() << fullscreen);
if(fullscreen) {
sdl_init_flags |= SDL_FULLSCREEN;
}
else {
sdl_init_flags &= ~SDL_FULLSCREEN;
}
SDL_SetVideoMode(width, height, bpp, this->sdl_init_flags);
resizeGL(width, height);
}
void PhysicalPlayer::setData(const Math::Matrix &transform,
const Math::Point &linearVelocity,
const Math::Point &angularVelocity, bool interpolate) {
Math::Point originalOrigin = getOrigin();
rigidBody->setWorldTransform(
Physics::Converter::toTransform(transform));
rigidBody->setLinearVelocity(
Physics::Converter::toVector(linearVelocity));
rigidBody->setAngularVelocity(
Physics::Converter::toVector(angularVelocity));
Math::Point newOrigin = getOrigin();
if(interpolate && GET_SETTING("network.interpolation.enable", 1)) {
networkError += originalOrigin - newOrigin;
}
else {
networkError = Math::Point(0.0, 0.0, 0.0);
}
updatePhysicalInfo();
}
void PaintSubsystem::calculateBoostSpeeds() {
Object::WorldManager::PlayerIteratorType iterator
= worldManager->getPlayerIterator();
while(iterator.hasNext()) {
Object::Player *player = iterator.next();
player->setPaintType(getPainting(player->getID()));
if(getPainting(player->getID()) == Event::TogglePainting::NOTHING) {
double factor = paintManager->weightedCellsInRadius(
player->getPosition(),
PAINTING_RADIUS,
player->getTeamID());
factor *= GET_SETTING("game.paint.boostweightfactor", 2.0);
factor += 1.0;
factor = Math::bound(factor,
GET_SETTING("game.paint.boostmin", 0.5),
GET_SETTING("game.paint.boostmax", 1.5)
);
double max_boost_increase = GET_SETTING("game.paint.maxboostincrease", 0.01);
double current_boost = player->getSpeedBoost();
if (factor < current_boost+max_boost_increase)
player->setSpeedBoost(factor);
else
player->setSpeedBoost(current_boost+max_boost_increase);
}
else {
// if painting or erasing, slow down the player no matter what
if (getPainting(player->getID()) == Event::TogglePainting::PAINTING)
player->setSpeedBoost(GET_SETTING("game.paint.paintingboost", 0.8));
else
player->setSpeedBoost(GET_SETTING("game.paint.erasingboost", 0.8));
}
}
}
int gt_parse_settings(config_t *config)
{
config_setting_t *node, *root, *elem;
int i, len, ret;
struct stat st;
const char *filename;
if (stat(GT_USER_SETTING_PATH, &st) == 0)
filename = GT_USER_SETTING_PATH;
else
filename = GT_SETTING_PATH;
ret = config_read_file(config, filename);
if (ret == CONFIG_FALSE)
return -1;
root = config_root_setting(config);
#define GET_SETTING(name, field) do { \
node = config_setting_get_member(root, name); \
if (node) { \
if (config_setting_type(node) != CONFIG_TYPE_STRING) { \
fprintf(stderr, "%s:%d: Expected string\n", \
config_setting_source_file(node), \
config_setting_source_line(node)); \
return -1; \
} \
gt_settings.field = config_setting_get_string(node); \
} \
} while (0)
GET_SETTING("default-udc", default_udc);
GET_SETTING("configfs-path", configfs_path);
GET_SETTING("default-template-path", default_template_path);
GET_SETTING("default-gadget", default_gadget);
node = config_setting_get_member(root, "lookup-path");
if (node) {
if (config_setting_is_aggregate(node) == CONFIG_FALSE) {
fprintf(stderr, "%s:%d: Expected list\n",
config_setting_source_file(node),
config_setting_source_line(node));
return -1;
}
len = config_setting_length(node);
gt_settings.lookup_path = calloc(len + 1, sizeof(*gt_settings.lookup_path));
for (i = 0; i < len; ++i) {
elem = config_setting_get_elem(node, i);
if (config_setting_type(elem) != CONFIG_TYPE_STRING) {
fprintf(stderr, "%s:%d: Expected string\n",
config_setting_source_file(elem),
config_setting_source_line(elem));
goto out;
}
gt_settings.lookup_path[i] = config_setting_get_string(elem);
}
}
#undef GET_SETTING
return 0;
out:
free(gt_settings.lookup_path);
return -1;
}
double Suspension::calculateDownFactor(const Math::Point& axis) {
return Math::maximum(GET_SETTING("physics.driving.mindownfactor", 0.1), -axis.normalized().getY());
}
void PathingUpdater::update() {
if(!GET_SETTING("game.enablepathing", true)) {
return;
}
Object::WorldManager::PlayerIteratorType iterator = worldManager->getPlayerIterator();
while (iterator.hasNext()) {
Object::Player* player = iterator.next();
// Raycast downward to find the update point
Math::Point origin_pos = player->getPosition();
Math::Point dir_pos = origin_pos;
dir_pos.setY(dir_pos.getY() - VEHICLE_PATH_RAY_MAX_HEIGHT);
Math::Point update_pos;
Physics::PhysicsWorld *physicsWorld
= Physics::PhysicsWorld::getInstance();
// Update if the player is above the track
if(physicsWorld->raycastPoint(origin_pos, dir_pos, &update_pos)) {
if(!player->getPathTracker()) continue; // no path tracker
if(!player->getPathTracker()->atLeastOneNode()) continue;
player->getPathTracker()->update(update_pos);
// Start a new lap for the player if they have crossed the finish plane
if (player->getPathTracker()->readyforNewLap() &&
raceManager->getBoundingPlane().pointInside(origin_pos)) {
player->getPathTracker()->startNewLap();
LOG(WORLD, "Player: " << player->getID()
<< " has finished lap "
<< player->getPathTracker()->getNumLaps());
if (!player->getPathTracker()->getFinished()
&& player->getPathTracker()->getNumLaps() >= raceManager->getNumLapsToWin()
&& !GET_SETTING("internal.practicemode", false) ) {
player->getPathTracker()->setFinished(true);
Map::PlayerTimes::getInstance().setFinished(
player->getID(),
World::TimeElapsed::getInstance().getGameTime());
if (Bonus::GlobalBonusManager::getInstance())
Bonus::GlobalBonusManager::getInstance()->getPlayerBonuses(player->getID()).playerFinish(player->getPathTracker()->getRanking());
}
if(playerManager->getPlayer() == player) {
EMIT_EVENT(new Event::PlayerProgressEvent(
player->getPathTracker()->getNumLaps(),
player->getPathTracker()->getLapProgress(),
raceManager->getNumLapsToWin()
)
);
}
}
}
warpDetector->checkForWarping(player);
}
raceManager->updatePlayerRankings(worldManager.get());
}
const World::PlayerIntention &WeightedDriver::getAction() {
Object::Player *player = getPlayer();
const Map::PathNode *current = player->getPathTracker()->getCurrentNode();
Map::PathNode *next;
Map::PathNode *next2;
Map::PathNode *previous;
// find the next node
if (current->getProgress() < player->getPathTracker()->getLapProgress()) {
int random = player->getID() % current->getNextNodes().size();
current = current->getNextNodes()[random];
}
previous = current->getPreviousNodes()[0];
int random = player->getID() % current->getNextNodes().size();
next = current->getNextNodes()[random];
random = player->getID() % next->getNextNodes().size();
next2 = next->getNextNodes()[random];
// calculate various vectors
Math::Point playerFacing = player->getPhysicalObject()->getFrontDirection();
Math::Point playerRight = player->getPhysicalObject()->getRightDirection();
Math::Point playerPos = player->getPosition();
double playerSpeed = player->getPhysicalObject()->getLinearSpeed();
double beeline_u = 1.0-Math::bound(
playerPos.distance(current->getPosition())*GET_SETTING("ai.pathlookaheadfactor", 0.1),
0.0, 1.0);
Math::Point beelinePoint = next->getPosition()*(1.0-beeline_u)+next2->getPosition()*beeline_u;
Math::Point beelineDirection = (beelinePoint-playerPos).normalized();
Math::Point pathDirection = (current->getPosition() - previous->getPosition()).normalized() * 0.5
+ (next->getPosition() - current->getPosition()).normalized() * 0.5;
pathDirection.normalize();
// compute error due to being far away from this path edge
double pathTurnSign = -Math::sign(playerRight.dotProduct(pathDirection));
double distanceOff = player->getPathTracker()->getProgressPosition().distance(playerPos);
distanceOff *= GET_SETTING("ai.pathdistancefactor", 1.0);
double angleTurnSign = -Math::sign(playerRight.dotProduct(beelineDirection));
double beelineAngle = Math::Geometry::vectorTo2DAngle(beelineDirection, Math::Y_AXIS);
double facingAngle = Math::Geometry::vectorTo2DAngle(playerFacing, Math::Y_AXIS);
double ccwAngle = std::fabs(beelineAngle-facingAngle);
double cwAngle = std::fabs(Math::minimum(beelineAngle, facingAngle)+((PI*2.0)-Math::maximum(beelineAngle, facingAngle)));
double offAngle = Math::minimum(ccwAngle, cwAngle);
double offAngleFactor = (offAngle/PI) - GET_SETTING("ai.minangleoffset", 0.1);
double angleFactor;
if (offAngleFactor < 0.0) {
offAngleFactor = 0.0;
angleFactor = 0.0;
}
else
angleFactor = offAngleFactor*GET_SETTING("ai.pathanglefactor", 1.0);
// compute error due to facing in the wrong direction
//double beelineAngle = playerRight.dotProduct(beelineDirection);
double slowDownFactor = playerSpeed-GET_SETTING("ai.minslowdownspeed", 10.0);
if (slowDownFactor < 0.0)
slowDownFactor = 0.0;
else
slowDownFactor *= GET_SETTING("ai.angleslowdownfactor", 1.0);
intention.setTurn(Math::bound((pathTurnSign * distanceOff) + (angleTurnSign * angleFactor), -1.0, 1.0));
intention.setAccel(Math::bound(2.0-(offAngleFactor*slowDownFactor), -1.0, 1.0));
detectSittingStill();
detectPaintAhead();
return intention;
}
void WeightedDriver::detectPaintAhead() {
if (!paintManager)
return;
double paintLookAhead = GET_SETTING("ai.paintlookahead", 2.0);
double minLookAhead = GET_SETTING("ai.minlookahead", 2.0);
Math::Point headingDir = getPlayer()->getPhysicalObject()->getLinearVelocity()*paintLookAhead;
double dist = getPlayer()->getPhysicalObject()->getLinearSpeed()*headingDir.length();
if (dist < minLookAhead) {
headingDir /= dist;
headingDir *= minLookAhead;
}
Math::Point paintQueryPoint = getPlayer()->getPosition()+headingDir;
double paintScore = paintManager->weightedCellsInRadius(paintQueryPoint, PAINTING_RADIUS, getPlayer()->getTeamID());
bool considering_change = false;
bool change_to_paint = false;
bool change_to_erase = false;
double paintThresh = GET_SETTING("ai.stoppaintingthreshhold", 1.2);
double eraseThresh = GET_SETTING("ai.starterasingthreshhold", 0.9);
bool allow_overwrite = GET_SETTING("game.paint.allowoverwrite", false);
bool allow_erase = GET_SETTING("game.paint.allowerase", true);
if (!intention.getPaint()) {
//Not painting: Change to painting
if ((allow_overwrite || paintScore > eraseThresh) && paintScore < paintThresh) {
considering_change = true;
change_to_paint = true;
}
}
if (!considering_change && !intention.getErase()) {
//Not erasing: Change to erasing
if (allow_erase && paintScore <= eraseThresh) {
considering_change = true;
change_to_erase = true;
}
}
if (!considering_change && intention.getPaint() ) {
//Is painting: Change to not painting
considering_change = (paintScore >= paintThresh);
}
unsigned long now = Misc::Sleeper::getTimeMilliseconds();
if (considering_change) {
if (paintSwitchTime + GET_SETTING("ai.paintswitchdelay", 500) < now) {
if (change_to_paint) {
intention.setPaint(true);
intention.setErase(false);
}
else if (change_to_erase) {
intention.setPaint(false);
intention.setErase(true);
}
else {
intention.setPaint(false);
intention.setErase(false);
}
paintSwitchTime = now;
}
}
else
paintSwitchTime = now;
}
