Team Fortress 2 Source Code as on 22/4/2020
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================//
#include "stdafx.h"
#include "MapDoc.h"
#include "MapView2D.h"
#include "MapView3D.h"
#include "Tool3D.h"
#include "hammer_mathlib.h"
#include "vgui/Cursor.h"
// memdbgon must be the last include file in a .cpp file!!!
#include <tier0/memdbgon.h>
#pragma warning(disable:4244)
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
Tool3D::Tool3D(void)
{
m_vPlaneNormal.Init();
m_vPlaneOrigin.Init();
m_bIsTranslating = false;
for ( int i=0;i<2; i++ )
{
m_bMouseDown[i] = false;
m_bMouseDragged[i] = false;
m_vMouseStart[i].Init();
}
m_vMousePos.Init();
}
void Tool3D::StartTranslation( CMapView *pView, const Vector2D &vClickPoint, bool bUseDefaultPlane )
{
if ( bUseDefaultPlane )
{
Vector vecHorz, vecVert,vecThird;
pView->GetBestTransformPlane( vecHorz, vecVert,vecThird );
SetTransformationPlane( vec3_origin, vecHorz, vecVert, vecThird );
}
m_vTranslation.Init();
ProjectTranslation( pView, vClickPoint, m_vTranslationStart, 0 );
m_bIsTranslating = true;
m_pDocument->UpdateAllViews( MAPVIEW_UPDATE_TOOL );
}
bool Tool3D::UpdateTranslation(CMapView *pView, const Vector2D &vPoint, UINT nFlags)
{
Vector vTransform;
ProjectTranslation( pView, vPoint, vTransform, 0 );
vTransform -= m_vTranslationStart;
return UpdateTranslation( vTransform, nFlags );
}
bool Tool3D::UpdateTranslation(const Vector &vUpdate, UINT flags /* = 0 */)
{
if ( m_vTranslation == vUpdate )
return false;
m_vTranslation = vUpdate;
m_pDocument->UpdateAllViews( MAPVIEW_UPDATE_TOOL );
return true;
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : bSave -
//-----------------------------------------------------------------------------
void Tool3D::FinishTranslation(bool bSave)
{
m_bIsTranslating = false;
if ( bSave )
{
// assume the tool changed an object
m_pDocument->UpdateAllViews( MAPVIEW_UPDATE_OBJECTS );
}
else
{
// just update the tool
m_pDocument->UpdateAllViews( MAPVIEW_UPDATE_TOOL );
}
}
void Tool3D::TranslatePoint(Vector& vPos)
{
vPos += m_vTranslation; // most simple translation
}
int Tool3D::HitTest(CMapView *pView, const Vector &vecWorld, bool bTestHandles)
{
Vector2D vClient;
pView->WorldToClient( vClient, vecWorld );
return HitTest( pView, vClient, bTestHandles );
}
bool Tool3D::HitRect(CMapView *pView, const Vector2D &vPoint, const Vector &vCenter, int extent )
{
Vector2D vClientCenter;
pView->WorldToClient( vClientCenter, vCenter );
if ( vPoint.x < (vClientCenter.x-extent) || vPoint.x > ( vClientCenter.x+extent) )
return false;
if ( vPoint.y < (vClientCenter.y-extent) || vPoint.y > ( vClientCenter.y+extent) )
return false;
return true;
}
int Tool3D::GetTransformationAxis()
{
if ( fabs( m_vPlaneNormal.x ) == 1 )
{
return 0;
}
else if ( fabs( m_vPlaneNormal.y ) == 1 )
{
return 1;
}
else if ( fabs( m_vPlaneNormal.z ) == 1 )
{
return 2;
}
else
return -1;
}
void Tool3D::SetTransformationPlane( const Vector &vOrigin, const Vector &vHorz, const Vector &vVert, const Vector &vNormal )
{
Assert( DotProduct(vNormal,vVert) == 0 );
Assert( DotProduct(vNormal,vHorz) == 0 );
Assert( vNormal.Length() > 0.9999 && vNormal.Length() < 1.0001 );
m_vPlaneOrigin = vOrigin;
m_vPlaneNormal = vNormal;
m_vPlaneHorz = vHorz;
m_vPlaneVert = vVert;
}
unsigned int Tool3D::GetConstraints(unsigned int nKeyFlags)
{
unsigned int uConstraints = 0;
bool bDisableSnap = (GetKeyState(VK_MENU) & 0x8000)!=0;
if ( !bDisableSnap )
{
uConstraints |= constrainSnap;
if ( !m_pDocument->IsSnapEnabled() )
{
uConstraints |= constrainIntSnap;
}
}
return uConstraints;
}
void Tool3D::ProjectOnTranslationPlane( const Vector &vWorld, Vector &vTransform, int nFlags )
{
if ( !nFlags )
{
float frac = DotProduct( m_vPlaneNormal, m_vPlaneOrigin-vWorld );
vTransform = vWorld + frac*m_vPlaneNormal;
}
else
{
Vector v0 = vWorld - m_vPlaneOrigin;
Vector vOut;
if ( !SolveLinearEquation( v0, m_vPlaneHorz, m_vPlaneVert, m_vPlaneNormal, vOut) )
{
vTransform.Init();
return;
}
if ( nFlags & constrainOnlyHorz )
{
vOut.y = 0;
}
if ( nFlags & constrainOnlyVert )
{
vOut.x = 0;
}
if ( nFlags & constrainSnap )
{
if ( nFlags & constrainIntSnap )
{
// just snap to next integer
vOut.x = V_rint(vOut.x);
vOut.y = V_rint(vOut.y);
}
else
{
// snap to user grid
float flGridSpacing = m_pDocument->GetGridSpacing();
if ( nFlags & constrainHalfSnap )
{
flGridSpacing *= 0.5f;
}
vOut.y = V_rint(vOut.y / flGridSpacing) * flGridSpacing;
vOut.x = V_rint(vOut.x / flGridSpacing) * flGridSpacing;
}
}
vTransform = m_vPlaneOrigin + vOut.x * m_vPlaneHorz + vOut.y * m_vPlaneVert;
}
}
void Tool3D::ProjectTranslation( CMapView *pView, const Vector2D &vPoint, Vector &vTransform, int nFlags )
{
Vector vStart, vEnd;
pView->BuildRay( vPoint, vStart, vEnd );
Vector vLine = vEnd-vStart;
if ( !nFlags )
{
// simple plane & line intersection
float d1 = DotProduct( m_vPlaneNormal, m_vPlaneOrigin-vStart );
float d2 = DotProduct( m_vPlaneNormal, vLine );
if ( d2 == 0 )
{
// line & plane are parallel !
vTransform.Init();
return;
}
vTransform = vStart + (d1/d2) *vLine;
return;
}
Vector v0 = vStart - m_vPlaneOrigin;
Vector vOut;
if ( !SolveLinearEquation( v0, m_vPlaneHorz, m_vPlaneVert, -vLine, vOut) )
{
vTransform.Init();
return;
}
if ( nFlags & constrainOnlyHorz )
{
vOut.y = 0;
}
if ( nFlags & constrainOnlyVert )
{
vOut.x = 0;
}
if ( nFlags & constrainSnap )
{
if ( nFlags & constrainIntSnap )
{
// just snap to next integer
vOut.x = V_rint(vOut.x);
vOut.y = V_rint(vOut.y);
}
else
{
// snap to user grid
float flGridSpacing = m_pDocument->GetGridSpacing();
if ( nFlags & constrainHalfSnap )
{
flGridSpacing *= 0.5f;
}
vOut.y = V_rint(vOut.y / flGridSpacing) * flGridSpacing;
vOut.x = V_rint(vOut.x / flGridSpacing) * flGridSpacing;
}
}
vTransform = m_vPlaneOrigin + vOut.x * m_vPlaneHorz + vOut.y * m_vPlaneVert;
}
bool Tool3D::OnLMouseDown2D( CMapView2D *pView, UINT nFlags, const Vector2D &vPoint )
{
m_bMouseDown[MOUSE_LEFT] = true;
m_bMouseDragged[MOUSE_LEFT] = false;
m_vMousePos = m_vMouseStart[MOUSE_LEFT] = vPoint;
pView->SetCapture();
return true;
}
bool Tool3D::OnLMouseUp2D( CMapView2D *pView, UINT nFlags, const Vector2D &vPoint )
{
m_vMousePos = vPoint;
m_bMouseDown[MOUSE_LEFT] = false;
m_bMouseDragged[MOUSE_LEFT] = false;
ReleaseCapture();
return true;
}
bool Tool3D::OnRMouseDown2D( CMapView2D *pView, UINT nFlags, const Vector2D &vPoint )
{
m_bMouseDown[MOUSE_RIGHT] = true;
m_bMouseDragged[MOUSE_RIGHT] = false;
m_vMousePos = m_vMouseStart[MOUSE_RIGHT] = vPoint;
pView->SetCapture();
return true;
}
bool Tool3D::OnRMouseUp2D( CMapView2D *pView, UINT nFlags, const Vector2D &vPoint )
{
m_vMousePos = vPoint;
m_bMouseDown[MOUSE_RIGHT] = false;
m_bMouseDragged[MOUSE_RIGHT] = false;
ReleaseCapture();
return true;
}
bool Tool3D::OnMouseMove2D( CMapView2D *pView, UINT nFlags, const Vector2D &vPoint )
{
m_vMousePos = vPoint;
for ( int i=0;i<2;i++)
{
if ( m_bMouseDown[i] )
{
if ( !m_bMouseDragged[i] )
{
// check if mouse was dragged if button is pressed down
Vector2D sizeDragged = vPoint - m_vMouseStart[i];
if ((abs(sizeDragged.x) > DRAG_THRESHHOLD) || (abs(sizeDragged.y) > DRAG_THRESHHOLD))
{
// If here, means we've dragged the mouse
m_bMouseDragged[i] = true;
}
}
// Make sure the point is visible.
pView->ToolScrollToPoint( vPoint );
}
}
return true;
}
bool Tool3D::OnLMouseDown3D( CMapView3D *pView, UINT nFlags, const Vector2D &vPoint )
{
m_bMouseDown[MOUSE_LEFT] = true;
m_bMouseDragged[MOUSE_LEFT] = false;
m_vMousePos = m_vMouseStart[MOUSE_LEFT] = vPoint;
return true;
}
bool Tool3D::OnLMouseUp3D( CMapView3D *pView, UINT nFlags, const Vector2D &vPoint )
{
m_vMousePos = vPoint;
m_bMouseDown[MOUSE_LEFT] = false;
m_bMouseDragged[MOUSE_LEFT] = false;
::ReleaseCapture();
return true;
}
bool Tool3D::OnRMouseDown3D( CMapView3D *pView, UINT nFlags, const Vector2D &vPoint )
{
m_bMouseDown[MOUSE_RIGHT] = true;
m_bMouseDragged[MOUSE_RIGHT] = false;
m_vMousePos = m_vMouseStart[MOUSE_RIGHT] = vPoint;
return true;
}
bool Tool3D::OnRMouseUp3D( CMapView3D *pView, UINT nFlags, const Vector2D &vPoint )
{
m_vMousePos = vPoint;
m_bMouseDown[MOUSE_RIGHT] = false;
m_bMouseDragged[MOUSE_RIGHT] = false;
::ReleaseCapture();
return true;
}
bool Tool3D::OnMouseMove3D( CMapView3D *pView, UINT nFlags, const Vector2D &vPoint )
{
m_vMousePos = vPoint;
for ( int i=0;i<2;i++)
{
if ( m_bMouseDown[i] )
{
if ( !m_bMouseDragged[i] )
{
// check if mouse was dragged if button is pressed down
Vector2D sizeDragged = vPoint - m_vMouseStart[i];
if ((abs(sizeDragged.x) > DRAG_THRESHHOLD) || (abs(sizeDragged.y) > DRAG_THRESHHOLD))
{
// If here, means we've dragged the mouse
m_bMouseDragged[i] = true;
}
}
// Make sure the point is visible.
// pView->ToolScrollToPoint( vPoint );
}
}
pView->SetCursor( vgui::dc_arrow );
return true;
}
void Tool3D::RenderTranslationPlane(CRender *pRender)
{
pRender->PushRenderMode( RENDER_MODE_WIREFRAME );
pRender->SetDrawColor( Color(128,128,128) );
Vector viewPoint,vOffset;
ProjectTranslation( pRender->GetView(), m_vMousePos, viewPoint, constrainSnap );
float fGrid = m_pDocument->GetGridSpacing();
int nSteps = 16;
vOffset = m_vPlaneVert * (fGrid * nSteps);
for (int h=-nSteps;h<=nSteps;h++)
{
Vector pos = viewPoint + ( m_vPlaneHorz * ( fGrid*h ) );
pRender->DrawLine( pos+vOffset, pos-vOffset );
}
vOffset = m_vPlaneHorz * (fGrid * nSteps);
for (int v=-nSteps;v<=nSteps;v++)
{
Vector pos = viewPoint + ( m_vPlaneVert * ( fGrid*v ) );
pRender->DrawLine( pos+vOffset, pos-vOffset );
}
pRender->PopRenderMode();
}