void EditTSCtrl::onRightMouseDown(const GuiEvent & event)
{
// always process the right mouse event first...
mRightMouseDown = true;
mLastBorderMoveTime = 0;
make3DMouseEvent(mLastEvent, event);
on3DRightMouseDown(mLastEvent);
if(!mLeftMouseDown && mRightMousePassThru && mProfile->mCanKeyFocus)
{
GuiCanvas *pCanvas = getRoot();
if( !pCanvas )
return;
PlatformWindow *pWindow = static_cast<GuiCanvas*>(getRoot())->getPlatformWindow();
if( !pWindow )
return;
PlatformCursorController *pController = pWindow->getCursorController();
if( !pController )
return;
// ok, gotta disable the mouse
// script functions are lockMouse(true); Canvas.cursorOff();
pWindow->setMouseLocked(true);
pCanvas->setCursorON( false );
if(mDisplayType != DisplayTypePerspective)
{
mouseLock();
mLastMousePos = event.mousePoint;
pCanvas->setForceMouseToGUI(true);
mLastMouseClamping = pCanvas->getClampTorqueCursor();
pCanvas->setClampTorqueCursor(false);
}
if(mDisplayType == DisplayTypeIsometric)
{
// Store the screen center point on the terrain for a possible rotation
TerrainBlock* activeTerrain = getActiveTerrain();
if( activeTerrain )
{
F32 extx, exty;
if(event.modifier & SI_SHIFT)
{
extx = F32(event.mousePoint.x);
exty = F32(event.mousePoint.y);
}
else
{
extx = getExtent().x * 0.5;
exty = getExtent().y * 0.5;
}
Point3F sp(extx, exty, 0.0f); // Near plane projection
Point3F start;
unproject(sp, &start);
Point3F end = start + mLastEvent.vec * 4000.0f;
Point3F tStartPnt, tEndPnt;
activeTerrain->getTransform().mulP(start, &tStartPnt);
activeTerrain->getTransform().mulP(end, &tEndPnt);
RayInfo info;
bool result = activeTerrain->castRay(tStartPnt, tEndPnt, &info);
if(result)
{
info.point.interpolate(start, end, info.t);
mIsoCamRotCenter = info.point;
}
else
{
mIsoCamRotCenter = start;
}
}
else
{
F32 extx = getExtent().x * 0.5;
F32 exty = getExtent().y * 0.5;
Point3F sp(extx, exty, 0.0f); // Near plane projection
unproject(sp, &mIsoCamRotCenter);
}
}
setFirstResponder();
}
}
void BrushAdjustHeightAction::process(Selection * sel, const Gui3DMouseEvent & event, bool, Type type)
{
if(type == Process)
return;
TerrainBlock *terrBlock = mTerrainEditor->getActiveTerrain();
if ( !terrBlock )
return;
if(type == Begin)
{
mTerrainEditor->lockSelection(true);
mTerrainEditor->getRoot()->mouseLock(mTerrainEditor);
// the way this works is:
// construct a plane that goes through the collision point
// with one axis up the terrain Z, and horizontally parallel to the
// plane of projection
// the cross of the camera ffdv and the terrain up vector produces
// the cross plane vector.
// all subsequent mouse actions are collided against the plane and the deltaZ
// from the previous position is used to delta the selection up and down.
Point3F cameraDir;
EditTSCtrl::smCamMatrix.getColumn(1, &cameraDir);
terrBlock->getTransform().getColumn(2, &mTerrainUpVector);
// ok, get the cross vector for the plane:
Point3F planeCross;
mCross(cameraDir, mTerrainUpVector, &planeCross);
planeCross.normalize();
Point3F planeNormal;
Point3F intersectPoint;
mTerrainEditor->collide(event, intersectPoint);
mCross(mTerrainUpVector, planeCross, &planeNormal);
mIntersectionPlane.set(intersectPoint, planeNormal);
// ok, we have the intersection point...
// project the collision point onto the up vector of the terrain
mPreviousZ = mDot(mTerrainUpVector, intersectPoint);
// add to undo
// and record the starting heights
for(U32 i = 0; i < sel->size(); i++)
{
mTerrainEditor->getUndoSel()->add((*sel)[i]);
(*sel)[i].mStartHeight = (*sel)[i].mHeight;
}
}
else if(type == Update)
{
// ok, collide the ray from the event with the intersection plane:
Point3F intersectPoint;
Point3F start = event.pos;
Point3F end = start + event.vec * 1000;
F32 t = mIntersectionPlane.intersect(start, end);
m_point3F_interpolate( start, end, t, intersectPoint);
F32 currentZ = mDot(mTerrainUpVector, intersectPoint);
F32 diff = currentZ - mPreviousZ;
for(U32 i = 0; i < sel->size(); i++)
{
(*sel)[i].mHeight = (*sel)[i].mStartHeight + diff * (*sel)[i].mWeight;
// clamp it
if((*sel)[i].mHeight < 0.f)
(*sel)[i].mHeight = 0.f;
if((*sel)[i].mHeight > 2047.f)
(*sel)[i].mHeight = 2047.f;
mTerrainEditor->setGridInfoHeight((*sel)[i]);
}
mTerrainEditor->scheduleGridUpdate();
}
else if(type == End)
{
mTerrainEditor->getRoot()->mouseUnlock(mTerrainEditor);
}
}
void blTerrainProxy::lightVector(LightInfo * light)
{
// Grab our terrain object
TerrainBlock* terrain = getObject();
if (!terrain)
return;
// Get the direction to the light (the inverse of the direction
// the light is pointing)
Point3F lightDir = -light->getDirection();
lightDir.normalize();
// Get the ratio between the light map pixel and world space (used below)
F32 lmTerrRatio = (F32)mTerrainBlockSize / (F32) mLightMapSize;
lmTerrRatio *= terrain->getSquareSize();
// Get the terrain position
Point3F terrPos( terrain->getTransform().getPosition() );
U32 i = 0;
for (U32 y = 0; y < mLightMapSize; y++)
{
for (U32 x = 0; x < mLightMapSize; x++)
{
// Get the relative pixel position and scale it
// by the ratio between lightmap and world space
Point2F pixelPos(x, y);
pixelPos *= lmTerrRatio;
// Start with a default normal of straight up
Point3F normal(0.0f, 0.0f, 1.0f);
// Try to get the actual normal from the terrain.
// Note: this won't change the default normal if
// it can't find a normal.
terrain->getNormal(pixelPos, &normal);
// The terrain lightmap only contains shadows.
F32 shadowed = 0.0f;
// Get the height at the lightmap pixel's position
F32 height = 0.0f;
terrain->getHeight(pixelPos, &height);
// Calculate the 3D position of the pixel
Point3F pixelPos3F(pixelPos.x, pixelPos.y, height);
// Translate that position by the terrain's transform
terrain->getTransform().mulP(pixelPos3F);
// Offset slighting along the normal so that we don't
// raycast into ourself
pixelPos3F += (normal * 0.1f);
// Calculate the light's position.
// If it is a vector light like the sun (no position
// just direction) then translate along that direction
// a reasonable distance to get a point sufficiently
// far away
Point3F lightPos = light->getPosition();
if(light->getType() == LightInfo::Vector)
{
lightPos = 1000.f * lightDir;
lightPos = pixelPos3F + lightPos;
}
// Cast a ray from the world space position of the lightmap pixel to the light source.
// If we hit something then we are in shadow. This allows us to be shadowed by anything
// that supports a castRay operation.
RayInfo info;
if(terrain->getContainer()->castRay(pixelPos3F, lightPos, STATIC_COLLISION_TYPEMASK, &info))
{
// Shadow the pixel.
shadowed = 1.0f;
}
// Set the final lightmap color.
mLightmap[i++] += ColorF::WHITE * mClampF( 1.0f - shadowed, 0.0f, 1.0f );
}
}
}
