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// * This file is part of the COLOBOT source code
// * Copyright (C) 2001-2008, Daniel ROUX & EPSITEC SA, www.epsitec.ch
// *
// * 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, see http://www.gnu.org/licenses/.
#include "object/task/taskfireant.h"
#include "graphics/engine/particle.h"
#include "math/geometry.h"
#include "object/motion/motionant.h"
#include "physics/physics.h"
// Object's constructor.
CTaskFireAnt::CTaskFireAnt(CObject* object) : CTask(object)
{
m_phase = TFA_NULL;
}
// Object's destructor.
CTaskFireAnt::~CTaskFireAnt()
{
}
// Management of an event.
bool CTaskFireAnt::EventProcess(const Event &event)
{
Math::Vector dir, vib;
float a, g, cirSpeed;
if ( m_engine->GetPause() ) return true;
if ( event.type != EVENT_FRAME ) return true;
if ( m_bError ) return false;
if ( m_object->GetFixed() ) // insect on its back?
{
m_bError = true;
return false;
}
m_time += event.rTime;
m_progress += event.rTime*m_speed;
if ( m_phase == TFA_TURN ) // preliminary rotation?
{
a = m_object->GetAngleY(0);
g = m_angle;
cirSpeed = Math::Direction(a, g)*2.0f;
if ( cirSpeed > 2.0f ) cirSpeed = 2.0f;
if ( cirSpeed < -2.0f ) cirSpeed = -2.0f;
m_physics->SetMotorSpeedZ(cirSpeed); // turns left/right
}
return true;
}
// Assigns the goal was achieved.
Error CTaskFireAnt::Start(Math::Vector impact)
{
Math::Vector pos;
ObjectType type;
m_impact = impact;
m_bError = true; // operation impossible
if ( !m_physics->GetLand() ) return ERR_FIRE_VEH;
type = m_object->GetType();
if ( type != OBJECT_ANT ) return ERR_FIRE_VEH;
// Insect on its back?
if ( m_object->GetFixed() ) return ERR_FIRE_VEH;
m_physics->SetMotorSpeed(Math::Vector(0.0f, 0.0f, 0.0f));
pos = m_object->GetPosition(0);
m_angle = Math::RotateAngle(m_impact.x-pos.x, pos.z-m_impact.z); // CW !
m_phase = TFA_TURN;
m_speed = 1.0f/1.0f;
m_progress = 0.0f;
m_time = 0.0f;
m_lastParticle = 0.0f;
m_bError = false; // ok
m_bFire = false; // once!
return ERR_OK;
}
// Indicates whether the action is finished.
Error CTaskFireAnt::IsEnded()
{
Math::Matrix* mat;
Math::Vector pos, speed;
Math::Point dim;
float angle, dist;
int i, channel;
if ( m_engine->GetPause() ) return ERR_CONTINUE;
if ( m_bError ) return ERR_STOP;
if ( m_object->GetFixed() ) return ERR_STOP; // insect on its back?
if ( m_phase == TFA_TURN ) // rotation ?
{
angle = m_object->GetAngleY(0);
angle = Math::NormAngle(angle); // 0..2*Math::PI
if ( !Math::TestAngle(angle, m_angle-Math::PI*0.05f, m_angle+Math::PI*0.05f) ) return ERR_CONTINUE;
m_physics->SetMotorSpeedZ(0.0f); // rotation ended
m_phase = TFA_PREPARE;
//? m_speed = 1.0f/1.5f;
m_speed = 1.0f/0.4f;
m_progress = 0.0f;
//? m_motion->SetAction(MAS_PREPARE, 1.5f);
m_motion->SetAction(MAS_PREPARE, 0.4f);
}
if ( m_phase == TFA_PREPARE ) // preparation?
{
if ( m_progress < 1.0f ) return ERR_CONTINUE;
m_phase = TFA_FIRE;
//? m_speed = 1.0f/2.0f;
m_speed = 1.0f/0.5f;
m_progress = 0.0f;
//? m_motion->SetAction(MAS_FIRE, 2.0f);
m_motion->SetAction(MAS_FIRE, 0.5f);
}
if ( m_phase == TFA_FIRE ) // shooting?
{
if ( m_progress > 0.75f && !m_bFire )
{
m_bFire = true; // once
for ( i=0 ; i<20 ; i++ )
{
pos = Math::Vector(-2.5f, -0.7f, 0.0f);
mat = m_object->GetWorldMatrix(2);
pos = Math::Transform(*mat, pos);
dist = Math::Distance(pos, m_impact);
speed = m_impact-pos;
speed.x += (Math::Rand()-0.5f)*dist*1.2f;
speed.y += (Math::Rand()-0.5f)*dist*0.4f+50.0f;
speed.z += (Math::Rand()-0.5f)*dist*1.2f;
dim.x = 1.0f;
dim.y = dim.x;
channel = m_particle->CreateParticle(pos, speed, dim, Gfx::PARTIGUN2, 2.0f, 100.0f, 0.0f);
m_particle->SetObjectFather(channel, m_object);
}
}
if ( m_progress < 1.0f ) return ERR_CONTINUE;
m_phase = TFA_TERMINATE;
//? m_speed = 1.0f/0.9f;
m_speed = 1.0f/0.4f;
m_progress = 0.0f;
//? m_motion->SetAction(MAS_TERMINATE, 0.9f);
m_motion->SetAction(MAS_TERMINATE, 0.4f);
}
if ( m_phase == TFA_TERMINATE ) // ends?
{
if ( m_progress < 1.0f ) return ERR_CONTINUE;
m_phase = TFA_NULL;
m_speed = 1.0f/1.0f;
m_progress = 0.0f;
}
Abort();
return ERR_STOP;
}
// Suddenly ends the current action.
bool CTaskFireAnt::Abort()
{
m_motion->SetAction(-1);
return true;
}
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