//---------------------------------------------------------------------
void BillboardSetElement::updateRenderInstance( Real time, TransformInfo &info )
{
if (mBillboardSet)
{
bool updateTexIndex = false;
if (mSlices > 1 || mStacks > 1)
{
mCurrentTexIntervalTime += time;
if (mCurrentTexIntervalTime >= mTexIntervalTime)
{
updateTexIndex = true;
mCurrentTexIntervalTime = 0.0f;
}
}
for ( int i = 0; i < mBillboardSet->getNumBillboards(); ++i )
{
Ogre::Billboard* billboard = mBillboardSet->getBillboard(i);
if (updateTexIndex)
{
uint16 texIndex = billboard->getTexcoordIndex();
++texIndex;
if (texIndex == mStacks * mSlices)
texIndex = 0;
billboard->setTexcoordIndex(texIndex);
}
if (mColourChanged)
billboard->setColour(mBillboardColour * mAlphaValue);
if (mSizeChanged)
{
_CurrentScaleInfo& info = mCurrentScaleInfos[i];
info.mCurrentScaleIntervalTime += time;
float colourPersent = fmod( info.mCurrentScaleIntervalTime, mScaleIntervalTime );
if (info.mCurrentScaleIntervalTime > mScaleIntervalTime)
{
info.mCurrentScaleIntervalTime = colourPersent;
++(info.mCurrentIndex);
if (info.mCurrentIndex == MAX_STAGES)
info.mCurrentIndex = 0;
}
Ogre::Vector3 resultColour;
Real rate = colourPersent / mScaleIntervalTime;
int incIndex = info.mCurrentIndex + 1;
if (incIndex == MAX_STAGES)
incIndex = 0;
resultColour = mBillboardScale[info.mCurrentIndex] * (1-rate) + mBillboardScale[incIndex] * rate;
billboard->setDimensions(mBillboardWidth * resultColour.x,
mBillboardHeight * resultColour.y);
}
}
if (mColourChanged)
mColourChanged = false;
}
}
void JumpTape::updateStateFrame(double simulation_frame_time) {
mRuntime += simulation_frame_time;
mKeyboard = dt::InputManager::get()->getKeyboard();
double field_speed = mRuntime/1000;
// Move each tile.
for(uint8_t i=0; i<TILES; ++i) {
Ogre::Billboard* tile = mTiles->getBillboard(i);
tile->setPosition(tile->getPosition() - Ogre::Vector3(field_speed, 0, 0));
}
// Wheater the next tile should be blank or present.
bool blank = _GetTileType();
// Move the first tile at the end of the group if it went beyond left margin.
static uint8_t i = 0; // index for selecting the right tile.
Ogre::Billboard* tile = mTiles->getBillboard(i);
if(tile->getPosition().x < (-GAME_WITDH/2)-4) {
// Get position of the last (precedent) tile.
double last_tile_x = mTiles->getBillboard((i+TILES-1) % TILES)->getPosition().x;
// Append billboard to end.
tile->setPosition(last_tile_x+TILE_X, dt::Random::get(-3, 3), 0);
tile->setTexcoordIndex(blank);
i++; // Switch to next tile...
i %= TILES; // ...in a cicle.
}
// Move player.
// Player and tile variables.
tile = mTiles->getBillboard((i+2) % TILES); // The tile on which the player is.
static float jump_height = 0; // The height of each jump.
static bool jump_allowed = false; // Jump is not allowed when the player is already on air.
bool blank_tile = tile->getTexcoordIndex(); // Wheater the tile under the player is blank.
Ogre::Vector3 player_pos = mPlayer->getPosition();
Ogre::Vector3 tile_pos = tile->getPosition(); // Position of the tile under the player.
// Jump.
if(mKeyboard->isKeyDown(OIS::KC_SPACE)
&& (jump_height < MAX_JUMP_HEIGHT) && jump_allowed) {
player_pos += Ogre::Vector3(0, JUMP_POWER, 0);
mPlayer->setPosition(player_pos);
jump_height += JUMP_POWER;
}
else {
jump_allowed = false; // Once the player release space he can't go up anymore.
}
float tile_top = tile_pos.y + TILE_Y * 2; // Top of the tile.
// Wheater the player is running on the tile.
bool on_tile = (player_pos.y <= tile_top+0.1) && (player_pos.y >= tile_top-0.1);
// Gravity.
if((blank_tile || !on_tile) && !jump_allowed) {
player_pos -= Ogre::Vector3(0, G_POWER, 0);
mPlayer->setPosition(player_pos);
}
// Evaluate if jump is allowed.
if(on_tile && !blank_tile) {
jump_height = 0;
jump_allowed = true;
// The player is running, change animation.
mPlayer->setTexcoordIndex(static_cast<uint8_t>(mRuntime*10) % PLAYER_FRAME);
}
// Reset game.
if(mKeyboard->isKeyDown(OIS::KC_N)) {
mRuntime=0;
mPlayer->setPosition(mPlayer->getPosition().x, tile_pos.y+4, 0);
tile->setTexcoordIndex(0);
}
// Show reset game info.
static QString time;
if(player_pos.y < -4) {
mGameInfo->setText("You ran for " + time + " seconds, press N for a new game");
}
else {
time = dt::Utils::toString(static_cast<uint32_t>(mRuntime));
mGameInfo->setText("You ran for " + time + " seconds");
}
}