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/**
* @file llhudeffecttrail.cpp
* @brief LLHUDEffectSpiral class implementation
*
* $LicenseInfo:firstyear=2002&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "llviewerprecompiledheaders.h"
#include "llhudeffectblob.h"
#include "llagent.h"
#include "llviewercamera.h"
#include "llui.h"
LLHUDEffectBlob::LLHUDEffectBlob(const U8 type)
: LLHUDEffect(type),
mPixelSize(10)
{
mTimer.start();
mImage = LLUI::getUIImage("Camera_Drag_Dot");
}
LLHUDEffectBlob::~LLHUDEffectBlob()
{
}
void LLHUDEffectBlob::markDead()
{
mImage = NULL;
LLHUDEffect::markDead();
}
void LLHUDEffectBlob::render()
{
F32 time = mTimer.getElapsedTimeF32();
if (mDuration < time)
{
markDead();
return;
}
LLVector3 pos_agent = gAgent.getPosAgentFromGlobal(mPositionGlobal);
LLVector3 pixel_up, pixel_right;
LLViewerCamera::instance().getPixelVectors(pos_agent, pixel_up, pixel_right);
LLGLSPipelineAlpha gls_pipeline_alpha;
gGL.getTexUnit(0)->bind(mImage->getImage());
LLColor4U color = mColor;
color.mV[VALPHA] = (U8)clamp_rescale(time, 0.f, mDuration, 255.f, 0.f);
gGL.color4ubv(color.mV);
{ gGL.pushMatrix();
gGL.translatef(pos_agent.mV[0], pos_agent.mV[1], pos_agent.mV[2]);
LLVector3 u_scale = pixel_right * (F32)mPixelSize;
LLVector3 v_scale = pixel_up * (F32)mPixelSize;
gGL.begin(LLRender::TRIANGLES);
{
gGL.texCoord2f(0.f, 1.f);
gGL.vertex3fv((v_scale - u_scale).mV);
gGL.texCoord2f(0.f, 0.f);
gGL.vertex3fv((-v_scale - u_scale).mV);
gGL.texCoord2f(1.f, 0.f);
gGL.vertex3fv((-v_scale + u_scale).mV);
gGL.texCoord2f(0.f, 1.f);
gGL.vertex3fv((v_scale - u_scale).mV);
gGL.texCoord2f(1.f, 0.f);
gGL.vertex3fv((-v_scale + u_scale).mV);
gGL.texCoord2f(1.f, 1.f);
gGL.vertex3fv((v_scale + u_scale).mV);
}
gGL.end();
} gGL.popMatrix();
}
void LLHUDEffectBlob::renderForTimer()
{
}
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