void Character::clipToTerrainHeight()
{
// Setup the scene query
Ogre::Ray queryRay(getNode()->getPosition(), Ogre::Vector3::NEGATIVE_UNIT_Y);
// Perform the scene query
Ogre::TerrainGroup::RayResult result = mClipTo->rayIntersects(queryRay);
if(result.hit) {
Ogre::Real terrainHeight = result.position.y;
Ogre::Vector3 pos = getNode()->getPosition();
pos.y = terrainHeight;
getNode()->setPosition(pos);
} else {
// Try querying terrain above character
queryRay.setOrigin(getNode()->getPosition());
queryRay.setDirection(Ogre::Vector3::UNIT_Y);
// Perform scene query again
result = mClipTo->rayIntersects(queryRay);
if(result.hit) {
Ogre::Real terrainHeight = result.position.y;
Ogre::Vector3 pos = getNode()->getPosition();
pos.y = terrainHeight;
getNode()->setPosition(pos);
}
}
}
void PlayerCharacter::update(Ogre::Real elapsedTime, OIS::Keyboard *input)
{
processKeyboardInput(elapsedTime);
processMouseInput(elapsedTime);
//Get the position of the ground below the player
Ogre::TerrainGroup* terrain = RenderManager::getSingletonPtr()->getTerrainManager()->getTerrainGroup();
//Store the position to increase it, to guarantuee a hit on the terrain
Ogre::Vector3 main_position = mMainNode_->getPosition();
Ogre::Vector3 ray_cast_position = main_position;
ray_cast_position.y += 1000.0f;
// Setup the query ray
Ogre::Ray queryRay(ray_cast_position, Ogre::Vector3::NEGATIVE_UNIT_Y);
// Perform the scene query
Ogre::TerrainGroup::RayResult result = terrain->rayIntersects(queryRay);
if(result.hit) {
mCurrentGroundPosition = result.position.y;
}
//Process jumping
if(isJumping_)
{
// if we're jumping, add a vertical offset too, and apply gravity
mMainNode_->translate(0, mCurrentDropVelocity * elapsedTime, 0, Ogre::Node::TS_LOCAL);
mCurrentDropVelocity -= mDropVelocityIncrement * elapsedTime;
Ogre::Vector3 pos = mMainNode_->getPosition();
if (pos.y <= mCurrentGroundPosition)
{
// if we've hit the ground, change to landing state
pos.y = mCurrentGroundPosition;
mMainNode_->setPosition(pos);
isJumping_ = false;
mCurrentDropVelocity = 0.0f;
}
}
//Upate the player height to the world if not jumping
if(!isJumping_)
{
if(main_position.y <= mCurrentGroundPosition)
{
main_position.y = mCurrentGroundPosition;
mMainNode_->setPosition(main_position);
mCurrentDropVelocity = 0.0f;
}
else
{
mCurrentDropVelocity += mDropVelocityIncrement * elapsedTime;
main_position.y = main_position.y - mCurrentDropVelocity;
//Check if we are already below the ground
if(main_position.y < mCurrentGroundPosition)
main_position.y = mCurrentGroundPosition;
mMainNode_->setPosition(main_position);
}
}
if (isRunning_ && mBaseAnimID == ANIM_IDLE_BASE)
{
// start running if not already moving and the player wants to move
setBaseAnimation(ANIM_WALK, true);
}
if(!isRunning_ && mBaseAnimID == ANIM_WALK)
{
setBaseAnimation(ANIM_IDLE_BASE);
}
updateAnimations(elapsedTime);
}
