stk-code_catmod/src/tracks/check_cannon.cpp

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//
// SuperTuxKart - a fun racing game with go-kart
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// Copyright (C) 2012-2015 Joerg Henrichs
//
// This program 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.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include "tracks/check_cannon.hpp"
#include "animations/animation_base.hpp"
#include "animations/ipo.hpp"
#include "config/user_config.hpp"
#include "graphics/show_curve.hpp"
#include "graphics/material_manager.hpp"
#include "graphics/sp/sp_dynamic_draw_call.hpp"
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#include "graphics/sp/sp_shader_manager.hpp"
#include "io/xml_node.hpp"
#include "items/flyable.hpp"
#include "karts/abstract_kart.hpp"
#include "karts/cannon_animation.hpp"
#include "karts/skidding.hpp"
#include "modes/world.hpp"
/** Constructor for a check cannon.
* \param node XML node containing the parameters for this checkline.
* \param index Index of this check structure in the check manager.
*/
CheckCannon::CheckCannon(const XMLNode &node, unsigned int index)
: CheckLine(node, index)
{
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std::string p1("target-p1");
std::string p2("target-p2");
if (race_manager->getReverseTrack())
{
p1 = "p1";
p2 = "p2";
}
if( !node.get(p1, &m_target_left ) ||
!node.get(p2, &m_target_right) )
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Log::fatal("CheckCannon", "No target line specified.");
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m_curve = new Ipo(*(node.getNode("curve")),
/*fps*/25,
/*reverse*/race_manager->getReverseTrack());
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#if defined(DEBUG) && !defined(SERVER_ONLY)
if(UserConfigParams::m_track_debug)
{
m_show_curve = new ShowCurve(0.5f, 0.5f);
const std::vector<Vec3> &p = m_curve->getPoints();
for(unsigned int i=0; i<p.size(); i++)
m_show_curve->addPoint(p[i]);
}
if (UserConfigParams::m_check_debug)
{
m_debug_target_dy_dc = std::make_shared<SP::SPDynamicDrawCall>
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(scene::EPT_TRIANGLE_STRIP,
SP::SPShaderManager::get()->getSPShader("additive"),
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material_manager->getDefaultSPMaterial("additive"));
SP::addDynamicDrawCall(m_debug_target_dy_dc);
m_debug_target_dy_dc->getVerticesVector().resize(4);
auto& vertices = m_debug_target_dy_dc->getVerticesVector();
Vec3 height(0, 3, 0);
vertices[0].m_position = m_target_left.toIrrVector();
vertices[1].m_position = m_target_right.toIrrVector();
vertices[2].m_position = Vec3(m_target_left + height).toIrrVector();
vertices[3].m_position = Vec3(m_target_right + height).toIrrVector();
for (unsigned int i = 0; i < 4; i++)
{
vertices[i].m_color = m_active_at_reset
? video::SColor(128, 255, 0, 0)
: video::SColor(128, 128, 128, 128);
}
m_debug_target_dy_dc->recalculateBoundingBox();
}
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#endif // DEBUG AND !SERVER_ONLY
} // CheckCannon
// ----------------------------------------------------------------------------
/** Destructor, frees the curve data (which the cannon animation objects only
* have a read-only copy of).
*/
CheckCannon::~CheckCannon()
{
delete m_curve;
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#if defined(DEBUG) && !defined(SERVER_ONLY)
if(UserConfigParams::m_track_debug)
delete m_show_curve;
if (m_debug_target_dy_dc)
m_debug_target_dy_dc->removeFromSP();
#endif
} // ~CheckCannon
// ----------------------------------------------------------------------------
/** Changes the colour of a check cannon depending on state.
*/
void CheckCannon::changeDebugColor(bool is_active)
{
#if defined(DEBUG) && !defined(SERVER_ONLY)
CheckLine::changeDebugColor(is_active);
video::SColor color = is_active ? video::SColor(192, 255, 0, 0)
: video::SColor(192, 128, 128, 128);
for (unsigned int i = 0; i < 4; i++)
{
m_debug_target_dy_dc->getVerticesVector()[i].m_color = color;
}
m_debug_target_dy_dc->setUpdateOffset(0);
#endif
} // changeDebugColor
// ----------------------------------------------------------------------------
/** Adds a flyable to be tested for crossing a cannon checkline.
* \param flyable The flyable to be tested.
*/
void CheckCannon::addFlyable(Flyable *flyable)
{
m_all_flyables.push_back(flyable);
m_flyable_previous_position.push_back(flyable->getXYZ());
} // addFlyable
// ----------------------------------------------------------------------------
/** Removes a flyable from the tests if it crosses a checkline. Used when
* the flyable is removed (e.g. explodes).
*/
void CheckCannon::removeFlyable(Flyable *flyable)
{
std::vector<Flyable*>::iterator i = std::find(m_all_flyables.begin(),
m_all_flyables.end(),
flyable);
assert(i != m_all_flyables.end());
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size_t index = i - m_all_flyables.begin(); // get the index
m_all_flyables.erase(i);
m_flyable_previous_position.erase(m_flyable_previous_position.begin() + index);
} // removeFlyable
// ----------------------------------------------------------------------------
/** Overriden to also check all flyables registered with the cannon.
*/
void CheckCannon::update(float dt)
{
CheckLine::update(dt);
for (unsigned int i = 0; i < m_all_flyables.size(); i++)
{
setIgnoreHeight(true);
bool triggered = isTriggered(m_flyable_previous_position[i],
m_all_flyables[i]->getXYZ(),
/*kart index - ignore*/ -1 );
setIgnoreHeight(false);
m_flyable_previous_position[i] = m_all_flyables[i]->getXYZ();
if(!triggered) continue;
// Cross the checkline - add the cannon animation
CannonAnimation *animation =
new CannonAnimation(m_all_flyables[i], m_curve->clone(),
getLeftPoint(), getRightPoint(),
m_target_left, m_target_right);
m_all_flyables[i]->setAnimation(animation);
} // for i in all flyables
} // update
// ----------------------------------------------------------------------------
/** Called when the check line is triggered. This function creates a cannon
* animation object and attaches it to the kart.
* \param kart_index The index of the kart that triggered the check line.
*/
void CheckCannon::trigger(unsigned int kart_index)
{
AbstractKart *kart = World::getWorld()->getKart(kart_index);
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if (kart->getKartAnimation() || kart->isGhostKart())
{
return;
}
// The constructor AbstractKartAnimation resets the skidding to 0. So in
// order to smooth rotate the kart, we need to keep the current visual
// rotation and pass it to the CannonAnimation.
float skid_rot = kart->getSkidding()->getVisualSkidRotation();
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new CannonAnimation(kart, m_curve->clone(), getLeftPoint(), getRightPoint(),
m_target_left, m_target_right, skid_rot);
} // CheckCannon