/usr/lib/perl5/Ogre/ExampleFrameListener.pm is in libogre-perl 0.60-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 | package Ogre::ExampleFrameListener;
# implements FrameListener, WindowEventListener
use strict;
use warnings;
use Ogre 0.38 qw(:TextureFilterOptions :PolygonMode);
use Ogre::Degree;
use Ogre::OverlayManager;
use Ogre::LogManager;
use Ogre::MaterialManager;
use Ogre::Vector3;
use Ogre::WindowEventUtilities;
# keep CPAN indexer from barfing on OIS below
our $VERSION = 0.38;
BEGIN {
if (eval { require OIS && $OIS::VERSION >= 0.05 }) {
require OIS::InputManager;
OIS::InputManager->import();
# xxx: these constants don't export right...
require OIS::Keyboard;
OIS::Keyboard->import(qw(:KeyCode));
require OIS::Mouse;
OIS::Mouse->import(qw(:MouseButtonID));
}
else {
die(__PACKAGE__ . " requires OIS 0.05 or greater\n");
}
}
# Note: I don't have a joystick to test with.... :P
sub new {
my ($pkg, $win, $cam, $bufferedKeys, $bufferedMouse, $bufferedJoy) = @_;
$bufferedKeys = 0 unless defined $bufferedKeys;
$bufferedMouse = 0 unless defined $bufferedMouse;
$bufferedJoy = 0 unless defined $bufferedJoy;
my $self = bless {
mWindow => $win, # RenderWindow
mCamera => $cam, # Camera
mTranslateVector => Ogre::Vector3->new(0, 0, 0),
mStatsOn => 1,
mNumScreenShots => 0,
mMoveScale => 0,
mRotScale => 0,
mTimeUntilNextToggle => 0,
mFiltering => TFO_BILINEAR,
mAniso => 1,
mSceneDetailIndex => 0,
mMoveSpeed => 100,
mRotateSpeed => 36,
mDebugOverlay => undef,
mInputManager => undef,
mMouse => undef,
mKeyboard => undef,
mJoy => undef,
mDebugText => '',
displayCameraDetails => 0, # static variable, I put it here instead
}, $pkg;
$self->{mDebugOverlay} = Ogre::OverlayManager->getSingletonPtr->getByName("Core/DebugOverlay");
Ogre::LogManager->getSingletonPtr->logMessage("*** Initializing OIS ***");
my $windowHnd = $win->getCustomAttributePtr('WINDOW');
$self->{mInputManager} = OIS::InputManager->createInputSystemPtr($windowHnd);
$self->{mKeyboard} = $self->{mInputManager}->createInputObjectKeyboard($bufferedKeys);
$self->{mMouse} = $self->{mInputManager}->createInputObjectMouse($bufferedMouse);
# $self->{mJoy} = $self->{mInputManager}->createInputObjectJoyStick($bufferedJoy);
$self->windowResized($win);
$self->showDebugOverlay(1);
Ogre::WindowEventUtilities->addWindowEventListener($win, $self);
return $self;
}
sub DESTROY {
my ($self) = @_;
# XXX: not sure where things are getting destroyed...
# I wonder if this is why autorepeat turns off when you close
# the application....
# Ogre::WindowEventUtilities->removeWindowEventListener($self->{mWindow}, $self);
# $self->windowClosed($self->{mWindow});
}
sub updateStats {
my ($self) = @_;
# there's a `try' block around this in C++,
# not sure why - maybe for when these overlay elements
# don't exist?
my $om = Ogre::OverlayManager->getSingletonPtr();
my $guiAvg = $om->getOverlayElement("Core/AverageFps");
my $guiCurr = $om->getOverlayElement("Core/CurrFps");
my $guiBest = $om->getOverlayElement("Core/BestFps");
my $guiWorst = $om->getOverlayElement("Core/WorstFps");
# I can't get getStatistics to work, so have to use individual
# methods from RenderTarget as follows.
# my $stats = $self->{mWindow}->getStatistics();
my $win = $self->{mWindow};
$guiAvg->setCaption("Average FPS: " . $win->getAverageFPS);
$guiCurr->setCaption("Current FPS: " . $win->getLastFPS);
$guiBest->setCaption("Best FPS: " . $win->getBestFPS
. " " . $win->getBestFrameTime . " ms");
$guiWorst->setCaption("Worst FPS: " . $win->getWorstFPS
. " " . $win->getWorstFrameTime . " ms");
my $guiTris = $om->getOverlayElement("Core/NumTris");
my $guiBatches = $om->getOverlayElement("Core/NumBatches");
my $guiDbg = $om->getOverlayElement("Core/DebugText");
$guiTris->setCaption("Triangle Count: " . $win->getTriangleCount);
$guiBatches->setCaption("Batch Count: " . $win->getBatchCount);
$guiDbg->setCaption($self->{mDebugText});
}
# windowEventListener
sub windowResized {
my ($self, $win) = @_;
my ($width, $height) = $win->getMetrics();
my $mousestate = $self->{mMouse}->getMouseState();
# note: in C++ this would be like mousestate.width = width;
$mousestate->setWidth($width);
$mousestate->setHeight($height);
}
# windowEventListener
sub windowClosed {
my ($self, $win) = @_;
# note: NEED TO IMPLEMENT overload == operator (etc...)
# if ($win == $self->{mWindow}) {
if ($win->getName == $self->{mWindow}->getName) {
if ($self->{mInputManager}) {
my $im = $self->{mInputManager};
if ($self->{mMouse}) {
$im->destroyInputObject($self->{mMouse});
delete $self->{mMouse};
}
if ($self->{mKeyboard}) {
$im->destroyInputObject($self->{mKeyboard});
delete $self->{mMouse};
}
if ($self->{mJoy}) {
$im->destroyInputObject($self->{mJoy});
delete $self->{mJoy};
}
OIS::InputManager->destroyInputSystem($im);
delete $self->{mInputManager};
}
}
}
sub processUnbufferedKeyInput {
my ($self, $evt) = @_;
my $kb = $self->{mKeyboard};
my $tv = $self->{mTranslateVector};
my $cam = $self->{mCamera};
if ($kb->isKeyDown(OIS::Keyboard->KC_A)) {
$tv->setX(-$self->{mMoveScale}); # Move camera left
}
if ($kb->isKeyDown(OIS::Keyboard->KC_D)) {
$tv->setX($self->{mMoveScale}); # Move camera RIGHT
}
if ($kb->isKeyDown(OIS::Keyboard->KC_UP) || $kb->isKeyDown(OIS::Keyboard->KC_W) ) {
$tv->setZ(-$self->{mMoveScale}); # Move camera forward
}
if ($kb->isKeyDown(OIS::Keyboard->KC_DOWN) || $kb->isKeyDown(OIS::Keyboard->KC_S) ) {
$tv->setZ($self->{mMoveScale}); # Move camera backward
}
if ($kb->isKeyDown(OIS::Keyboard->KC_PGUP)) {
$tv->setY($self->{mMoveScale}); # Move camera up
}
if ($kb->isKeyDown(OIS::Keyboard->KC_PGDOWN)) {
$tv->setY(-$self->{mMoveScale}); # Move camera down
}
if ($kb->isKeyDown(OIS::Keyboard->KC_RIGHT)) {
$cam->yaw(Ogre::Degree->new(- $self->{mRotScale}));
}
if ($kb->isKeyDown(OIS::Keyboard->KC_LEFT)) {
$cam->yaw(Ogre::Degree->new($self->{mRotScale}));
}
if ($kb->isKeyDown(OIS::Keyboard->KC_ESCAPE) || $kb->isKeyDown(OIS::Keyboard->KC_Q)) {
return 0;
}
if ($kb->isKeyDown(OIS::Keyboard->KC_F) && $self->{mTimeUntilNextToggle} <= 0) {
$self->{mStatsOn} = !$self->{mStatsOn};
$self->showDebugOverlay($self->{mStatsOn});
$self->{mTimeUntilNextToggle} = 1;
}
if ($kb->isKeyDown(OIS::Keyboard->KC_T) && $self->{mTimeUntilNextToggle} <= 0) {
if ($self->{mFiltering} == TFO_BILINEAR) {
$self->{mFiltering} = TFO_TRILINEAR;
$self->{mAniso} = 1;
}
elsif ($self->{mFiltering} == TFO_TRILINEAR) {
$self->{mFiltering} = TFO_ANISOTROPIC;
$self->{mAniso} = 8;
}
elsif ($self->{mFiltering} == TFO_ANISOTROPIC) {
$self->{mFiltering} = TFO_BILINEAR;
$self->{mAniso} = 1;
}
Ogre::MaterialManager->getSingletonPtr->setDefaultTextureFiltering($self->{mFiltering});
Ogre::MaterialManager->getSingletonPtr->setDefaultAnisotropy($self->{mAniso});
$self->showDebugOverlay($self->{mStatsOn});
$self->{mTimeUntilNextToggle} = 1;
}
if ($kb->isKeyDown(OIS::Keyboard->KC_SYSRQ) && $self->{mTimeUntilNextToggle} <= 0) {
my $ss = "screenshot_" . ++$self->{mNumScreenShots} . ".png";
$self->{mWindow}->writeContentsToFile($ss);
$self->{mTimeUntilNextToggle} = 0.5;
$self->{mDebugText} = "Saved: $ss";
}
if ($kb->isKeyDown(OIS::Keyboard->KC_R) && $self->{mTimeUntilNextToggle} <= 0) {
$self->{mSceneDetailIndex} = ($self->{mSceneDetailIndex} + 1) % 3;
if ($self->{mSceneDetailIndex} == 0) {
$cam->setPolygonMode(PM_SOLID);
}
elsif ($self->{mSceneDetailIndex} == 1) {
$cam->setPolygonMode(PM_WIREFRAME);
}
elsif ($self->{mSceneDetailIndex} == 2) {
$cam->setPolygonMode(PM_POINTS);
}
$self->{mTimeUntilNextToggle} = 0.5;
}
if ($kb->isKeyDown(OIS::Keyboard->KC_P) && $self->{mTimeUntilNextToggle} <= 0) {
$self->{displayCameraDetails} = !$self->{displayCameraDetails};
$self->{$self->{mTimeUntilNextToggle}} = 0.5;
if (!$self->{displayCameraDetails}) {
$self->{mDebugText} = "";
}
}
# Print camera details
# XXX: not for now - requires overloading "" for Quaternion
# and Vector3
#if ($self-{displayCameraDetails}) {
# $self->{mDebugText} = "P: " . $cam->getDerivedPosition() .
# " " . "O: " . $cam->getDerivedOrientation();
#}
if ($self->{displayCameraDetails}) {
$self->{mDebugText} = "P: --- O: ---";
}
# Return true to continue rendering
return 1;
}
sub processUnbufferedMouseInput {
my ($self, $evt) = @_;
# Rotation factors, may not be used if the second mouse button is pressed
# 2nd mouse button - slide, otherwise rotate
my $ms = $self->{mMouse}->getMouseState();
if ($ms->buttonDown(OIS::Mouse->MB_Right)) {
my $tv = $self->{mTranslateVector};
$tv->setX($tv->x + $ms->X->rel * 0.13);
$tv->setY($tv->y - $ms->Y->rel * 0.13);
}
else {
$self->{mRotX} = Ogre::Degree->new(- $ms->X->rel * 0.13);
$self->{mRotY} = Ogre::Degree->new(- $ms->Y->rel * 0.13);
}
return 1;
}
sub moveCamera {
my ($self) = @_;
# Make all the changes to the camera
# Note that YAW direction is around a fixed axis (freelook style) rather than a natural YAW
# (e.g. airplane)
my $cam = $self->{mCamera};
die "mRotX and mRotY must be Ogre::Degree!\n"
unless ref($self->{mRotX}) && ref($self->{mRotY});
$cam->yaw($self->{mRotX});
$cam->pitch($self->{mRotY});
$cam->moveRelative($self->{mTranslateVector});
}
sub showDebugOverlay {
my ($self, $show) = @_;
if ($self->{mDebugOverlay}) {
if ($show) {
$self->{mDebugOverlay}->show();
} else {
$self->{mDebugOverlay}->hide();
}
}
}
sub frameStarted {
my ($self, $evt) = @_;
my $mouse = $self->{mMouse};
my $keyboard = $self->{mKeyboard};
my $joy = $self->{mJoy};
if ($self->{mWindow}->isClosed()) {
return 0;
}
# Need to capture/update each device
$keyboard->capture();
$mouse->capture();
if ($joy) {
$joy->capture();
}
my $buffJ = $joy ? $joy->buffered() : 1;
# Check if one of the devices is not buffered
if (!$mouse->buffered() || !$keyboard->buffered() || !$buffJ) {
# one of the input modes is immediate, so setup what is needed for immediate movement
if ($self->{mTimeUntilNextToggle} >= 0) {
$self->{mTimeUntilNextToggle} -= $evt->timeSinceLastFrame;
}
# If this is the first frame, pick a speed
if ($evt->timeSinceLastFrame == 0) {
$self->{mMoveScale} = 1;
$self->{mRotScale} = 0.1;
}
# Otherwise scale movement units by time passed since last frame
else {
# Move about 100 units per second,
$self->{mMoveScale} = $self->{mMoveSpeed} * $evt->timeSinceLastFrame;
# Take about 10 seconds for full rotation
$self->{mRotScale} = $self->{mRotateSpeed} * $evt->timeSinceLastFrame;
}
$self->{mRotX} = Ogre::Degree->new(0);
$self->{mRotY} = Ogre::Degree->new(0);
$self->{mTranslateVector} = Ogre::Vector3->new(0, 0, 0);
}
# Check to see which device is not buffered, and handle it
if (!$keyboard->buffered()) {
unless ($self->processUnbufferedKeyInput($evt)) {
return 0;
}
}
if (!$mouse->buffered()) {
unless ($self->processUnbufferedMouseInput($evt)) {
return 0;
}
}
if (!$mouse->buffered() || !$keyboard->buffered() || !$buffJ) {
$self->moveCamera();
}
return 1;
}
sub frameEnded {
$_[0]->updateStats();
return 1;
}
1;
__END__
=head1 NAME
Ogre::ExampleFrameListener
=head1 SYNOPSIS
package MyFrameListener;
use Ogre::ExampleFrameListener;
@ISA = qw(Ogre::ExampleFrameListener);
# override methods...
package MyApplication;
# ...
my $framelistener = MyFrameListener->new();
$root->addFrameListener($framelistener);
=head1 DESCRIPTION
This is a port of OGRE's F<Samples/Common/include/ExampleFrameListener.h>.
See the examples referred to in F<examples/README.txt>.
=head1 AUTHOR
Scott Lanning E<lt>slanning@cpan.orgE<gt>
For licensing information, see README.txt .
=cut
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