ScreenODETest.cpp

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#include "global.h"
#include "MercuryDisplay.h"
#include "ScreenODETest.h"
#include "MercuryTheme.h" 
#include "MercuryInput.h"
#include "MercuryUtil.h"

REGISTER_SCREEN_CLASS( ScreenODETest )

KeyMappingWithCode( button_a, "0-97" );
KeyMappingWithCode( button_s, "0-115" );
KeyMappingWithCode( button_d, "0-100" );
KeyMappingWithCode( button_w, "0-119" );

ScreenODETest::~ScreenODETest( )
{
    DISPLAY->RemoveLight(&m_light);
//  SOUNDMAN->SetListener(NULL);
}

void ScreenODETest::Init()
{
    MercuryScreen::Init();

    MercuryINI pINI;
    pINI.Open( GET_FILE_BY_NAME( "IniFile" ) );

    m_pWorld.Init();
    m_pWorld.LoadFromINI( pINI, THEME.GetMetricS( m_name, "WorldName" ) );
    AddPerspObject( &m_pWorld );

    m_shpGround.SetName("Ground");
    m_shpGround.Init();
    m_shpGround.MakeSprite();
    m_shpGround.LoadImage( "GRAPHIC:ground2.png" );
    m_shpGround.SetScale( MercuryPoint( 900,900,0));
    AddPerspObject( &m_shpGround );

    m_pCamera = new MercuryCamera;
    m_pCamera->SetName( "Camera" );
    m_pCamera->Init();
    m_pCamera->SetPosition( MercuryPoint( 500,100,900) );
    m_pCamera->SetUp(MercuryPoint(0,0,1));
    AddObject( m_pCamera );
    
//  SOUNDMAN->SetListener( m_pCamera);

    //Setup a light
    m_light.Init();
    m_light.SetY(100);
    m_light.SetX(-100);
    m_light.SetZ(110);
    m_light.SetAttenuation(0.001f, Attenuation::LINEAR);
    m_light.SetStatic(true);
    DISPLAY->AddLight(&m_light);

    m_bFirstUpdate=true;
}

void ScreenODETest::Update( const float dTime )
{
    MercuryScreen::Update( dTime );
    if ( m_bFirstUpdate )
    {
        m_bFirstUpdate = false;
        return;
    }
    MercuryODEObject * z = m_pWorld.GetODEObjectByName( "Control" );

    int dx=0;
    int dy=0;
    if ( INPUTMAN->IsButtonDown( button_d ) )
        dx -=5000;
    if ( INPUTMAN->IsButtonDown( button_a ) )
        dx += 5000;
    if ( INPUTMAN->IsButtonDown( button_w ) )
        dy -= 5000;
    if ( INPUTMAN->IsButtonDown( button_s ) )
        dy += 5000;

    float Amplitude = SQRT(float((dx*dx)+(dy*dy)));
    float AngleToGo=ATAN2(float(dx),float(-dy));

    MercuryPoint Target = m_pWorld.GetODEObjectByName( "Control" )->GetPosition();
    MercuryPoint From = m_pCamera->GetPosition();
    float AngleDiff=ATAN2((From-Target).x,(From-Target).y);

    float RealAngle = AngleToGo - AngleDiff - 1.57f;

    dBodySetForce( z->m_oBody, COS(RealAngle)*Amplitude,SIN(RealAngle)*Amplitude,0);
}

void ScreenODETest::Draw()
{
    MercuryODEObject * c = m_pWorld.GetODEObjectByName( "Control" );

    int x, y;
    INPUTMAN->GetCursorPosition(x, y);
    m_pCamera->Tweening.StopTweening();

    //The tween adjusts the eye, up never changes, and center is always the control object
    m_pCamera->Tweening.AddCommand( ssprintf( "linear,0.4;x,%f;y,%f;z,%f;", 
        c->GetX()+COS(float(x)/300)*70, 
        c->GetY()+SIN(float(x)/300)*70,
        c->GetZ()+(float(y)/300)*70) );
    m_pCamera->SetTarget(c->GetPosition());

    MercuryScreen::Draw();
}


/* 
 * Copyright (c) 2006, Charles Lohr
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 *  -   Redistributions of source code must retain the above
 *      copyright notice, this list of conditions and the following disclaimer.
 *  -   Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in
 *      the documentation and/or other materials provided with the distribution.
 *  -   Neither the name of the Mercury Engine nor the names of its
 *      contributors may be used to endorse or promote products derived from
 *      this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

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