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DavidWyand-GG 2012-09-19 11:15:01 -04:00
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Engine/source/T3D/vehicles/guiSpeedometer.cpp Normal file
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//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------
#include "gui/controls/guiBitmapCtrl.h"
#include "console/consoleTypes.h"
#include "T3D/gameBase/gameConnection.h"
#include "T3D/vehicles/vehicle.h"
#include "gfx/primBuilder.h"
//-----------------------------------------------------------------------------
/// A Speedometer control.
/// This gui displays the speed of the current Vehicle based
/// control object. This control only works if a server
/// connection exists and its control object is a vehicle. If
/// either of these requirements is false, the control is not rendered.
class GuiSpeedometerHud : public GuiBitmapCtrl
{
typedef GuiBitmapCtrl Parent;
F32 mSpeed; ///< Current speed
F32 mMaxSpeed; ///< Max speed at max need pos
F32 mMaxAngle; ///< Max pos of needle
F32 mMinAngle; ///< Min pos of needle
Point2F mCenter; ///< Center of needle rotation
ColorF mColor; ///< Needle Color
F32 mNeedleLength;
F32 mNeedleWidth;
F32 mTailLength;
GFXStateBlockRef mBlendSB;
public:
GuiSpeedometerHud();
void onRender( Point2I, const RectI &);
static void initPersistFields();
DECLARE_CONOBJECT( GuiSpeedometerHud );
DECLARE_CATEGORY( "Gui Game" );
DECLARE_DESCRIPTION( "Displays the speed of the current Vehicle-based control object." );
};
//-----------------------------------------------------------------------------
IMPLEMENT_CONOBJECT( GuiSpeedometerHud );
ConsoleDocClass( GuiSpeedometerHud,
"@brief Displays the speed of the current Vehicle based control object.\n\n"
"This control only works if a server connection exists, and its control "
"object is a Vehicle derived class. If either of these requirements is false, "
"the control is not rendered.<br>"
"The control renders the speedometer needle as a colored quad, rotated to "
"indicate the Vehicle speed as determined by the <i>minAngle</i>, "
"<i>maxAngle</i>, and <i>maxSpeed</i> properties. This control is normally "
"placed on top of a GuiBitmapCtrl representing the speedometer dial.\n\n"
"@tsexample\n"
"new GuiSpeedometerHud()\n"
"{\n"
" maxSpeed = \"100\";\n"
" minAngle = \"215\";\n"
" maxAngle = \"0\";\n"
" color = \"1 0.3 0.3 1\";\n"
" center = \"130 123\";\n"
" length = \"100\";\n"
" width = \"2\";\n"
" tail = \"0\";\n"
" //Properties not specific to this control have been omitted from this example.\n"
"};\n"
"@endtsexample\n\n"
"@ingroup GuiContainers"
);
GuiSpeedometerHud::GuiSpeedometerHud()
{
mSpeed = 0;
mMaxSpeed = 100;
mMaxAngle = 0;
mMinAngle = 200;
mCenter.set(0,0);
mNeedleWidth = 3;
mNeedleLength = 10;
mTailLength = 5;
mColor.set(1,0,0,1);
}
void GuiSpeedometerHud::initPersistFields()
{
addGroup("Needle");
addField("maxSpeed", TypeF32, Offset( mMaxSpeed, GuiSpeedometerHud ),
"Maximum Vehicle speed (in Torque units per second) to represent on the "
"speedo (Vehicle speeds greater than this are clamped to maxSpeed)." );
addField("minAngle", TypeF32, Offset( mMinAngle, GuiSpeedometerHud ),
"Angle (in radians) of the needle when the Vehicle speed is 0. An angle "
"of 0 points right, 90 points up etc)." );
addField("maxAngle", TypeF32, Offset( mMaxAngle, GuiSpeedometerHud ),
"Angle (in radians) of the needle when the Vehicle speed is >= maxSpeed. "
"An angle of 0 points right, 90 points up etc)." );
addField("color", TypeColorF, Offset( mColor, GuiSpeedometerHud ),
"Color of the needle" );
addField("center", TypePoint2F, Offset( mCenter, GuiSpeedometerHud ),
"Center of the needle, offset from the GuiSpeedometerHud control top "
"left corner" );
addField("length", TypeF32, Offset( mNeedleLength, GuiSpeedometerHud ),
"Length of the needle from center to end" );
addField("width", TypeF32, Offset( mNeedleWidth, GuiSpeedometerHud ),
"Width of the needle" );
addField("tail", TypeF32, Offset( mTailLength, GuiSpeedometerHud ),
"Length of the needle from center to tail" );
endGroup("Needle");
Parent::initPersistFields();
}
//-----------------------------------------------------------------------------
/**
Gui onRender method.
Renders a health bar with filled background and border.
*/
void GuiSpeedometerHud::onRender(Point2I offset, const RectI &updateRect)
{
// Must have a connection and player control object
GameConnection* conn = GameConnection::getConnectionToServer();
if (!conn)
return;
Vehicle* control = dynamic_cast<Vehicle*>(conn->getControlObject());
if (!control)
return;
Parent::onRender(offset,updateRect);
// Use the vehicle's velocity as its speed...
mSpeed = control->getVelocity().len();
if (mSpeed > mMaxSpeed)
mSpeed = mMaxSpeed;
// Render the needle
GFX->pushWorldMatrix();
Point2F center = mCenter;
if (mIsZero(center.x) && mIsZero(center.y))
{
center.x = getExtent().x / 2.0f;
center.y = getExtent().y / 2.0f;
}
MatrixF newMat(1);
newMat.setPosition(Point3F(getLeft() + center.x, getTop() + center.y, 0.0f));
F32 rotation = mMinAngle + (mMaxAngle - mMinAngle) * (mSpeed / mMaxSpeed);
AngAxisF newRot(Point3F(0.0f,0.0f,-1.0f), rotation);
newRot.setMatrix(&newMat);
if (mBlendSB.isNull())
{
GFXStateBlockDesc desc;
desc.setBlend(true, GFXBlendSrcAlpha, GFXBlendInvSrcAlpha);
desc.samplersDefined = true;
desc.samplers[0].textureColorOp = GFXTOPDisable;
mBlendSB = GFX->createStateBlock(desc);
}
GFX->setStateBlock(mBlendSB);
GFX->setTexture(0, NULL);
PrimBuild::begin(GFXLineStrip, 5);
PrimBuild::color4f(mColor.red, mColor.green, mColor.blue, mColor.alpha);
PrimBuild::vertex2f(+mNeedleLength,-mNeedleWidth);
PrimBuild::vertex2f(+mNeedleLength,+mNeedleWidth);
PrimBuild::vertex2f(-mTailLength ,+mNeedleWidth);
PrimBuild::vertex2f(-mTailLength ,-mNeedleWidth);
//// Get back to the start!
PrimBuild::vertex2f(+mNeedleLength,-mNeedleWidth);
PrimBuild::end();
}