lltoolbrush.cpp

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#include "llviewerprecompiledheaders.h"

#include "lltoolbrush.h"
#include "lltoolselectland.h"

#include "llgl.h"

#include "message.h"

#include "llagent.h"
#include "llcallbacklist.h"
#include "llviewercontrol.h"
#include "llfloatertools.h"
#include "llregionposition.h"
#include "llstatusbar.h"
#include "llsurface.h"
#include "llsurfacepatch.h"
#include "lltoolmgr.h"
#include "llui.h"
#include "llviewerparcelmgr.h"
#include "llviewerparceloverlay.h"
#include "llviewerregion.h"
#include "llviewerwindow.h"
#include "llworld.h"
#include "viewer.h"
#include "llparcel.h"

#include "llglheaders.h"

const std::string REGION_BLOCKS_TERRAFORM_MSG = "This region does not allow terraforming.\n"
                                "You will need to buy land in another part of the world to terraform it.";

// Globals
LLToolBrushLand *gToolLand = NULL;


const S32 LAND_BRUSH_SIZE_COUNT = 3;
const F32 LAND_BRUSH_SIZE[LAND_BRUSH_SIZE_COUNT] = {1.0f, 2.0f, 4.0f};
const S32 LAND_STEPS = 3;
const F32 LAND_METERS_PER_SECOND = 1.0f;
enum
{
        E_LAND_LEVEL    = 0,
        E_LAND_RAISE    = 1,
        E_LAND_LOWER    = 2,
        E_LAND_SMOOTH   = 3,
        E_LAND_NOISE    = 4,
        E_LAND_REVERT   = 5,
        E_LAND_INVALID  = 6,
};
const LLColor4 OVERLAY_COLOR(1.0f, 1.0f, 1.0f, 1.0f);


// constructor
LLToolBrushLand::LLToolBrushLand()
:       LLTool("Land"),
        mStartingZ( 0.0f ),
        mMouseX( 0 ),
        mMouseY(0),
        mGotHover(FALSE),
        mLastShowParcelOwners(FALSE),
        mBrushSelected(FALSE)
{
        mBrushIndex = gSavedSettings.getS32("RadioLandBrushSize");
}

void LLToolBrushLand::modifyLandAtPointGlobal(const LLVector3d &pos_global,
                                                                                          MASK mask)
{
        S32 radioAction = gSavedSettings.getS32("RadioLandBrushAction");

        determineAffectedRegions(mLastAffectedRegions, pos_global);
        for(LLViewerRegion* regionp = mLastAffectedRegions.getFirstData();
                                regionp != NULL;
                                regionp = mLastAffectedRegions.getNextData())
        {
                //BOOL is_changed = FALSE;
                LLVector3 pos_region = regionp->getPosRegionFromGlobal(pos_global);
                LLSurface &land = regionp->getLand();
                char action = E_LAND_LEVEL;
                switch (radioAction)
                {
                case 0:
                //      // average toward mStartingZ
                        action = E_LAND_LEVEL;
                        break;
                case 1:
                        action = E_LAND_RAISE;
                        break;
                case 2:
                        action = E_LAND_LOWER;
                        break;
                case 3:
                        action = E_LAND_SMOOTH;
                        break;
                case 4:
                        action = E_LAND_NOISE;
                        break;
                case 5:
                        action = E_LAND_REVERT;
                        break;
                default:
                        action = E_LAND_INVALID;
                        break;
                }

                // Don't send a message to the region if nothing changed.
                //if(!is_changed) continue;

                // Now to update the patch information so it will redraw correctly.
                LLSurfacePatch *patchp= land.resolvePatchRegion(pos_region);
                if (patchp)
                {
                        patchp->dirtyZ();
                }

                // Also force the property lines to update, normals to recompute, etc.
                regionp->forceUpdate();

                // tell the simulator what we've done
                F32 seconds = 1.0f / gFPSClamped;
                F32 x_pos = (F32)pos_region.mV[VX];
                F32 y_pos = (F32)pos_region.mV[VY];
                U8 brush_size = (U8)mBrushIndex;
                LLMessageSystem* msg = gMessageSystem;
                msg->newMessageFast(_PREHASH_ModifyLand);
                msg->nextBlockFast(_PREHASH_AgentData);
                msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
                msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
                msg->nextBlockFast(_PREHASH_ModifyBlock);
                msg->addU8Fast(_PREHASH_Action, (U8)action);
                msg->addU8Fast(_PREHASH_BrushSize, brush_size);
                msg->addF32Fast(_PREHASH_Seconds, seconds);
                msg->addF32Fast(_PREHASH_Height, mStartingZ);
                msg->nextBlockFast(_PREHASH_ParcelData);
                msg->addS32Fast(_PREHASH_LocalID, -1);
                msg->addF32Fast(_PREHASH_West, x_pos );
                msg->addF32Fast(_PREHASH_South, y_pos );
                msg->addF32Fast(_PREHASH_East, x_pos );
                msg->addF32Fast(_PREHASH_North, y_pos );
                msg->sendMessage(regionp->getHost());
        }
}

void LLToolBrushLand::modifyLandInSelectionGlobal()
{
        if (gParcelMgr->selectionEmpty())
        {
                return;
        }

        if (gToolMgr->getCurrentTool() == gToolParcel)
        {
                // selecting land, don't do anything
                return;
        }

        LLVector3d min;
        LLVector3d max;

        gParcelMgr->getSelection(min, max);

        S32 radioAction = gSavedSettings.getS32("RadioLandBrushAction");

        mLastAffectedRegions.removeAllNodes();

        determineAffectedRegions(mLastAffectedRegions, LLVector3d(min.mdV[VX], min.mdV[VY], 0));
        determineAffectedRegions(mLastAffectedRegions, LLVector3d(min.mdV[VX], max.mdV[VY], 0));
        determineAffectedRegions(mLastAffectedRegions, LLVector3d(max.mdV[VX], min.mdV[VY], 0));
        determineAffectedRegions(mLastAffectedRegions, LLVector3d(max.mdV[VX], max.mdV[VY], 0));

        LLRegionPosition mid_point_region((min + max) * 0.5);
        LLViewerRegion* center_region = mid_point_region.getRegion();
        if (center_region)
        {
                LLVector3 pos_region = mid_point_region.getPositionRegion();
                U32 grids = center_region->getLand().mGridsPerEdge;
                S32 i = llclamp( (S32)pos_region.mV[VX], 0, (S32)grids );
                S32 j = llclamp( (S32)pos_region.mV[VY], 0, (S32)grids );
                mStartingZ = center_region->getLand().getZ(i+j*grids);
        }
        else
        {
                mStartingZ = 0.f;
        }

        // Stop if our selection include a no-terraform region
        for(LLViewerRegion* regionp = mLastAffectedRegions.getFirstData();
                                regionp != NULL;
                                regionp = mLastAffectedRegions.getNextData())
        {
                if (!canTerraform(regionp))
                {
                        alertNoTerraform(regionp);
                        return;
                }
        }

        for(LLViewerRegion* regionp = mLastAffectedRegions.getFirstData();
                                regionp != NULL;
                                regionp = mLastAffectedRegions.getNextData())
        {
                //BOOL is_changed = FALSE;
                LLVector3 min_region = regionp->getPosRegionFromGlobal(min);
                LLVector3 max_region = regionp->getPosRegionFromGlobal(max);
        
                min_region.clamp(0.f, regionp->getWidth());
                max_region.clamp(0.f, regionp->getWidth());
                F32 seconds = 1.0f;

                LLSurface &land = regionp->getLand();
                char action = E_LAND_LEVEL;
                switch (radioAction)
                {
                case 0:
                //      // average toward mStartingZ
                        action = E_LAND_LEVEL;
                        seconds = 1.f;
                        break;
                case 1:
                        action = E_LAND_RAISE;
                        break;
                case 2:
                        action = E_LAND_LOWER;
                        break;
                case 3:
                        action = E_LAND_SMOOTH;
                        seconds = 10.f;
                        break;
                case 4:
                        action = E_LAND_NOISE;
                        seconds = 0.5f;
                        break;
                case 5:
                        action = E_LAND_REVERT;
                        seconds = 0.5f;
                        break;
                default:
                        //action = E_LAND_INVALID;
                        //seconds = 0.0f;
                        return;
                        break;
                }

                // Don't send a message to the region if nothing changed.
                //if(!is_changed) continue;

                // Now to update the patch information so it will redraw correctly.
                LLSurfacePatch *patchp= land.resolvePatchRegion(min_region);
                if (patchp)
                {
                        patchp->dirtyZ();
                }

                // Also force the property lines to update, normals to recompute, etc.
                regionp->forceUpdate();

                // tell the simulator what we've done
                U8 brush_size = (U8)mBrushIndex;
                LLMessageSystem* msg = gMessageSystem;
                msg->newMessageFast(_PREHASH_ModifyLand);
                msg->nextBlockFast(_PREHASH_AgentData);
                msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
                msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
                msg->nextBlockFast(_PREHASH_ModifyBlock);
                msg->addU8Fast(_PREHASH_Action, (U8)action);
                msg->addU8Fast(_PREHASH_BrushSize, brush_size);
                msg->addF32Fast(_PREHASH_Seconds, seconds);
                msg->addF32Fast(_PREHASH_Height, mStartingZ);

                BOOL parcel_selected = gParcelMgr->getParcelSelection()->getWholeParcelSelected();
                LLParcel* selected_parcel = gParcelMgr->getParcelSelection()->getParcel();

                if (parcel_selected && selected_parcel)
                {
                        msg->nextBlockFast(_PREHASH_ParcelData);
                        msg->addS32Fast(_PREHASH_LocalID, selected_parcel->getLocalID());
                        msg->addF32Fast(_PREHASH_West,  min_region.mV[VX] );
                        msg->addF32Fast(_PREHASH_South, min_region.mV[VY] );
                        msg->addF32Fast(_PREHASH_East,  max_region.mV[VX] );
                        msg->addF32Fast(_PREHASH_North, max_region.mV[VY] );
                }
                else
                {
                        msg->nextBlockFast(_PREHASH_ParcelData);
                        msg->addS32Fast(_PREHASH_LocalID, -1);
                        msg->addF32Fast(_PREHASH_West,  min_region.mV[VX] );
                        msg->addF32Fast(_PREHASH_South, min_region.mV[VY] );
                        msg->addF32Fast(_PREHASH_East,  max_region.mV[VX] );
                        msg->addF32Fast(_PREHASH_North, max_region.mV[VY] );
                }

                msg->sendMessage(regionp->getHost());
        }
}

void LLToolBrushLand::brush( void )
{
        LLVector3d spot;
        if( gViewerWindow->mousePointOnLandGlobal( mMouseX, mMouseY, &spot ) )
        {
                // Round to nearest X,Y grid
                spot.mdV[VX] = floor( spot.mdV[VX] + 0.5 );
                spot.mdV[VY] = floor( spot.mdV[VY] + 0.5 );

                modifyLandAtPointGlobal(spot, gKeyboard->currentMask(TRUE));
        }
}

BOOL LLToolBrushLand::handleMouseDown(S32 x, S32 y, MASK mask)
{
        BOOL handled = FALSE;

        // Find the z value of the initial click. 
        LLVector3d spot;
        if( gViewerWindow->mousePointOnLandGlobal( x, y, &spot ) )
        {
                // Round to nearest X,Y grid
                spot.mdV[VX] = floor( spot.mdV[VX] + 0.5 );
                spot.mdV[VY] = floor( spot.mdV[VY] + 0.5 );

                LLRegionPosition region_position( spot );
                LLViewerRegion* regionp = region_position.getRegion();

                if (!canTerraform(regionp))
                {
                        alertNoTerraform(regionp);
                        return TRUE;
                }

                LLVector3 pos_region = region_position.getPositionRegion();
                U32 grids = regionp->getLand().mGridsPerEdge;
                S32 i = llclamp( (S32)pos_region.mV[VX], 0, (S32)grids );
                S32 j = llclamp( (S32)pos_region.mV[VY], 0, (S32)grids );
                mStartingZ = regionp->getLand().getZ(i+j*grids);
                mMouseX = x;
                mMouseY = y;
                gIdleCallbacks.addFunction( &LLToolBrushLand::onIdle, (void*)this );
                setMouseCapture( TRUE );

                gParcelMgr->setSelectionVisible(FALSE);
                handled = TRUE;
        }

        return handled;
}

BOOL LLToolBrushLand::handleHover( S32 x, S32 y, MASK mask )
{
        lldebugst(LLERR_USER_INPUT) << "hover handled by LLToolBrushLand ("
                                                                << (hasMouseCapture() ? "active":"inactive")
                                                                << ")" << llendl;
        mMouseX = x;
        mMouseY = y;
        mGotHover = TRUE;
        gViewerWindow->getWindow()->setCursor(UI_CURSOR_TOOLLAND);
        return TRUE;
}

BOOL LLToolBrushLand::handleMouseUp(S32 x, S32 y, MASK mask)
{
        BOOL handled = FALSE;
        mLastAffectedRegions.removeAllNodes();
        if( hasMouseCapture() )
        {
                // Release the mouse
                setMouseCapture( FALSE );

                gParcelMgr->setSelectionVisible(TRUE);

                gIdleCallbacks.deleteFunction( &LLToolBrushLand::onIdle, (void*)this );
                handled = TRUE;
        }

        return handled;
}

void LLToolBrushLand::handleSelect()
{
        gEditMenuHandler = this;

        gFloaterTools->setStatusText("modifyland");
//      if (!mBrushSelected)
        {
                mLastShowParcelOwners = gSavedSettings.getBOOL("ShowParcelOwners");
                gSavedSettings.setBOOL("ShowParcelOwners", mLastShowParcelOwners);
                mBrushSelected = TRUE;
        }
}


void LLToolBrushLand::handleDeselect()
{
        if( gEditMenuHandler == this )
        {
                gEditMenuHandler = NULL;
        }
        mLastShowParcelOwners = gSavedSettings.getBOOL("ShowParcelOwners");
        gSavedSettings.setBOOL("ShowParcelOwners", mLastShowParcelOwners);
        gParcelMgr->setSelectionVisible(TRUE);
        mBrushSelected = FALSE;
}

// Draw the area that will be affected.
void LLToolBrushLand::render()
{
        if(mGotHover)
        {
                //llinfos << "LLToolBrushLand::render()" << llendl;
                LLVector3d spot;
                if(gViewerWindow->mousePointOnLandGlobal(mMouseX, mMouseY, &spot))
                {
                        spot.mdV[VX] = floor( spot.mdV[VX] + 0.5 );
                        spot.mdV[VY] = floor( spot.mdV[VY] + 0.5 );

                        mBrushIndex = gSavedSettings.getS32("RadioLandBrushSize");
                        LLLinkedList<LLViewerRegion> regions;
                        determineAffectedRegions(regions, spot);

                        // Now, for each region, render the overlay
                        LLVector3 pos_world = gAgent.getRegion()->getPosRegionFromGlobal(spot);
                        for(LLViewerRegion* region = regions.getFirstData();
                                region != NULL;
                                region = regions.getNextData())
                        {
                                renderOverlay(region->getLand(), 
                                                          region->getPosRegionFromGlobal(spot),
                                                          pos_world);
                        }
                }
                mGotHover = FALSE;
        }
}

void LLToolBrushLand::renderOverlay(LLSurface& land, const LLVector3& pos_region,
                                                                        const LLVector3& pos_world)
{
        glMatrixMode(GL_MODELVIEW);
        LLGLSNoTexture gls_no_texture;
        LLGLDepthTest mDepthTest(GL_TRUE);
        glPushMatrix();
        glColor4fv(OVERLAY_COLOR.mV);
        glTranslatef(0.0f, 0.0f, 1.0f);
        //glPushMatrix();
        //glTranslatef(spot.mV[VX], spot.mV[VY], 100.0f);
        //gl_rect_2d(0, 10, 10, 0);
        //glPopMatrix();
        S32 i = (S32) pos_region.mV[VX];
        S32 j = (S32) pos_region.mV[VY];
        S32 half_edge = llfloor(LAND_BRUSH_SIZE[mBrushIndex]);
        //F32 dz = 0.0f;
        //S32 dist = 0;
        glBegin(GL_POINTS);
        for(S32 di = -half_edge; di <= half_edge; di++)
        {
                if((i+di) < 0 || (i+di) >= (S32)land.mGridsPerEdge) continue;
                for(S32 dj = -half_edge; dj <= half_edge; dj++)
                {
                        if( (j+dj) < 0 || (j+dj) >= (S32)land.mGridsPerEdge ) continue;
                        glVertex3f(pos_world.mV[VX] + di, pos_world.mV[VY] + dj,
                                           land.getZ((i+di)+(j+dj)*land.mGridsPerEdge));
                }
        }
        glEnd();
        glPopMatrix();
}

void LLToolBrushLand::determineAffectedRegions(LLLinkedList<LLViewerRegion>& regions,
                                                                                           const LLVector3d& spot ) const
{
        LLVector3d corner(spot);
        corner.mdV[VX] -= (LAND_BRUSH_SIZE[mBrushIndex] / 2);
        corner.mdV[VY] -= (LAND_BRUSH_SIZE[mBrushIndex] / 2);
        LLViewerRegion* region = NULL;
        region = gWorldPointer->getRegionFromPosGlobal(corner);
        if(region && !regions.checkData(region))
        {
                regions.addData(region);
        }
        corner.mdV[VY] += LAND_BRUSH_SIZE[mBrushIndex];
        region = gWorldPointer->getRegionFromPosGlobal(corner);
        if(region && !regions.checkData(region))
        {
                regions.addData(region);
        }
        corner.mdV[VX] += LAND_BRUSH_SIZE[mBrushIndex];
        region = gWorldPointer->getRegionFromPosGlobal(corner);
        if(region && !regions.checkData(region))
        {
                regions.addData(region);
        }
        corner.mdV[VY] -= LAND_BRUSH_SIZE[mBrushIndex];
        region = gWorldPointer->getRegionFromPosGlobal(corner);
        if(region && !regions.checkData(region))
        {
                regions.addData(region);
        }
}

// static
void LLToolBrushLand::onIdle( void* brush_tool )
{
        LLToolBrushLand* self = reinterpret_cast<LLToolBrushLand*>(brush_tool);

        if( gToolMgr->getCurrentTool() == self )
        {
                self->brush();
        }
        else
        {
                gIdleCallbacks.deleteFunction( &LLToolBrushLand::onIdle, self );
        }
}

void LLToolBrushLand::onMouseCaptureLost()
{
        gIdleCallbacks.deleteFunction(&LLToolBrushLand::onIdle, this);
}

// static
void LLToolBrushLand::undo()
{
        for(LLViewerRegion* regionp = mLastAffectedRegions.getFirstData();
                        regionp != NULL;
                        regionp = mLastAffectedRegions.getNextData())
        {
                gMessageSystem->newMessageFast(_PREHASH_UndoLand);
                gMessageSystem->nextBlockFast(_PREHASH_AgentData);
                gMessageSystem->addUUIDFast(_PREHASH_AgentID, gAgent.getID() );
                gMessageSystem->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
                gMessageSystem->sendMessage(regionp->getHost());
        }
}

// static
/*
void LLToolBrushLand::redo()
{
        for(LLViewerRegion* regionp = mLastAffectedRegions.getFirstData();
                        regionp != NULL;
                        regionp = mLastAffectedRegions.getNextData())
        {
                gMessageSystem->newMessageFast(_PREHASH_RedoLand);
                gMessageSystem->nextBlockFast(_PREHASH_AgentData);
                gMessageSystem->addUUIDFast(_PREHASH_AgentID, gAgent.getID() );
                gMessageSystem->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
                gMessageSystem->sendMessage(regionp->getHost());
        }
}*/

// static
bool LLToolBrushLand::canTerraform(LLViewerRegion* regionp) const
{
        if (!regionp) return false;
        if (regionp->canManageEstate()) return true;
        return !(regionp->getRegionFlags() & REGION_FLAGS_BLOCK_TERRAFORM);
}

// static
void LLToolBrushLand::alertNoTerraform(LLViewerRegion* regionp)
{
        if (!regionp) return;
        
        LLStringBase<char>::format_map_t args;
        args["[REGION]"] = regionp->getName();
        gViewerWindow->alertXml("RegionNoTerraforming", args);

}

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