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game/client/tf2/hud_ammo.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "cbase.h"
+#include "hud_numeric.h"
+#include "hud_ammo.h"
+#include "hud.h"
+#include "iclientmode.h"
+#include <vgui_controls/AnimationController.h>
+#include <KeyValues.h>
+
+//-----------------------------------------------------------------------------
+// Singleton
+//-----------------------------------------------------------------------------
+static CHudAmmo g_HudAmmo;
+CHudAmmo* GetHudAmmo()
+{
+	return &g_HudAmmo;
+}
+
+
+//-----------------------------------------------------------------------------
+// Accessor methods to set various state associated with the ammo display
+//-----------------------------------------------------------------------------
+void CHudAmmo::SetPrimaryAmmo( int nAmmoType, int nTotalAmmo, int nClipCount, int nMaxClipCount )
+{
+	m_nAmmoType1 = nAmmoType;
+	m_nTotalAmmo1 = nTotalAmmo;
+	m_nMaxClip1 = nMaxClipCount;
+	m_nClip1 = nClipCount;
+}
+
+void CHudAmmo::SetSecondaryAmmo( int nAmmoType, int nTotalAmmo, int nClipCount, int nMaxClipCount )
+{
+	m_nAmmoType2 = nAmmoType;
+	m_nTotalAmmo2 = nTotalAmmo;
+	m_nMaxClip2 = nMaxClipCount;
+	m_nClip2 = nClipCount;
+}
+
+bool CHudAmmo::ShouldShowPrimaryClip() const
+{
+	if ( m_nAmmoType1 <= 0 )
+		return false;
+
+	if ( m_nClip1 < 0 )
+		return false;
+
+	return true;
+}
+
+bool CHudAmmo::ShouldShowSecondary() const 
+{
+	if ( m_nAmmoType2 <= 0 )
+		return false;
+
+	if ( m_nTotalAmmo2 <= 0 )
+		return false;
+
+	return true;
+}
+
+void CHudAmmo::ShowHideHudControls()
+{
+	bool showClip = ShouldShowPrimaryClip();
+	bool showSecondary = ShouldShowSecondary();
+
+	if ( showClip )
+	{
+		if ( showSecondary )
+		{
+			g_pClientMode->GetViewportAnimationController()->StartAnimationSequence( "ShowPrimaryAmmoClipShowSecondaryAmmo" );
+		}
+		else
+		{
+			g_pClientMode->GetViewportAnimationController()->StartAnimationSequence( "ShowPrimaryAmmoClipHideSecondaryAmmo" );
+		}
+	}
+	else
+	{
+		if ( showSecondary )
+		{
+			g_pClientMode->GetViewportAnimationController()->StartAnimationSequence( "HidePrimaryAmmoClipShowSecondaryAmmo" );
+		}
+		else
+		{
+			g_pClientMode->GetViewportAnimationController()->StartAnimationSequence( "HidePrimaryAmmoClipHideSecondaryAmmo" );
+		}
+	}
+}
+
+class CHudAmmoPrimary : public CHudNumeric
+{
+	DECLARE_CLASS_SIMPLE( CHudAmmoPrimary, CHudNumeric );
+public:
+	CHudAmmoPrimary( const char *pElementName ) : CHudNumeric( pElementName, "HudAmmoPrimary" )
+	{
+		SetHiddenBits( HIDEHUD_HEALTH | HIDEHUD_PLAYERDEAD );
+	}
+
+	virtual const char *GetLabelText() { return m_szAmmoLabel; }
+	virtual const char *GetPulseEvent( bool increment ) { return increment ? "PrimaryAmmoIncrement" : "PrimaryAmmoDecrement"; }
+
+	virtual bool		GetValue( char *val, int maxlen )
+	{
+		if ( GetHudAmmo()->m_nAmmoType1 <= 0 )
+			return false;
+
+		int count = ( GetHudAmmo()->m_nClip1 >= 0 ) ? GetHudAmmo()->m_nClip1 : GetHudAmmo()->m_nTotalAmmo1;
+		Q_snprintf( val, maxlen, "%i", count );
+		return true;
+	}
+
+	virtual Color GetColor()
+	{
+		// Get our ratio bar information
+		float	ammoPerc = 1.0f - ( (float) GetHudAmmo()->m_nClip1 ) / ( (float) GetHudAmmo()->m_nMaxClip1 );
+		bool	ammoCaution = ( ammoPerc >= CLIP_PERC_THRESHOLD );
+
+		if ( ammoCaution )
+			return m_TextColorCritical;
+
+		return m_TextColor;
+	}
+
+	virtual void ApplySchemeSettings(vgui::IScheme *scheme)
+	{
+		BaseClass::ApplySchemeSettings( scheme );
+
+		SetPaintBackgroundEnabled( true );
+	}
+
+private:
+	CPanelAnimationStringVar( 128, m_szAmmoLabel, "AmmoLabel", "Ammo" );
+};
+
+DECLARE_HUDELEMENT( CHudAmmoPrimary );
+
+class CHudAmmoPrimaryClip : public CHudNumeric
+{
+	DECLARE_CLASS_SIMPLE( CHudAmmoPrimaryClip, CHudNumeric );
+
+public:
+	CHudAmmoPrimaryClip( const char *pElementName ) : BaseClass( pElementName, "HudAmmoPrimaryClip" )
+	{
+		SetDrawLabel( false );
+
+		m_nPrevVisible = -1;
+
+		SetHiddenBits( HIDEHUD_HEALTH | HIDEHUD_PLAYERDEAD );
+	}
+
+	virtual const char *GetLabelText() { return m_szAmmoClipLabel; }
+	virtual const char *GetPulseEvent( bool increment ) { return increment ? "PrimaryAmmoClipIncrement" : "PrimaryAmmoClipDecrement"; }
+
+	virtual bool		GetValue( char *val, int maxlen )
+	{
+		int iret = _GetValue( val, maxlen ) ? 1 : 0;
+
+		if ( iret != m_nPrevVisible )
+		{
+			GetHudAmmo()->ShowHideHudControls();
+			m_nPrevVisible = iret;
+		}
+
+		return true;
+	}
+
+	virtual bool		_GetValue( char *val, int maxlen )
+	{
+		Q_snprintf( val, maxlen, "" );
+
+		if ( !GetHudAmmo()->ShouldShowPrimaryClip() )
+			return false;
+
+		int count = GetHudAmmo()->m_nTotalAmmo1;
+		Q_snprintf( val, maxlen, "%i", count );
+		return true;
+	}
+
+	virtual Color GetColor()
+	{
+		if ( GetHudAmmo()->ShouldShowPrimaryClip() )
+		{
+			if ( GetHudAmmo()->m_nTotalAmmo1 <= GetHudAmmo()->m_nMaxClip1 )
+			{
+				return m_TextColorCritical;
+			}
+		}
+
+		return m_TextColor;
+	}
+
+private:
+	int		m_nPrevVisible;
+	CPanelAnimationStringVar( 128, m_szAmmoClipLabel, "AmmoClipLabel", "PrimaryAmmoClip" );
+};
+
+DECLARE_HUDELEMENT( CHudAmmoPrimaryClip );
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+class CHudAmmoSecondary : public CHudNumeric
+{
+	DECLARE_CLASS_SIMPLE( CHudAmmoSecondary, CHudNumeric );
+
+public:
+	CHudAmmoSecondary( const char *pElementName ) : CHudNumeric( pElementName, "HudAmmoSecondary" )
+	{
+		SetDrawLabel( false );
+
+		m_nPrevVisible = -1;
+
+		SetHiddenBits( HIDEHUD_HEALTH | HIDEHUD_PLAYERDEAD );
+	}
+
+	virtual const char *GetLabelText() { return m_szAmmoSecondaryLabel; }
+	virtual const char *GetPulseEvent( bool increment ) { return increment ? "SecondaryAmmoIncrement" : "SecondaryAmmoDecrement"; }
+
+	virtual bool		GetValue( char *val, int maxlen )
+	{
+		int iret = _GetValue( val, maxlen ) ? 1 : 0;
+
+		if ( iret != m_nPrevVisible )
+		{
+			// Shift primary and clip left/right as needed
+			GetHudAmmo()->ShowHideHudControls();
+			m_nPrevVisible = iret;
+		}
+
+		return iret ? true : false;
+	}
+
+	virtual bool		_GetValue( char *val, int maxlen )
+	{
+		if ( !GetHudAmmo()->ShouldShowSecondary() )
+			return false;
+
+		int count = GetHudAmmo()->m_nTotalAmmo2;
+		Q_snprintf( val, maxlen, "%i", count );
+		return true;
+	}
+
+	virtual Color GetColor()
+	{
+		if ( GetHudAmmo()->m_nAmmoType2 > 0 &&
+			 GetHudAmmo()->m_nTotalAmmo2 == 1 )
+		{
+			return m_TextColorCritical;
+		}
+
+		return m_TextColor;
+	}
+
+private:
+	int		m_nPrevVisible;
+	CPanelAnimationStringVar( 128, m_szAmmoSecondaryLabel, "AmmoSecondaryLabel", "AmmoSecondary" );
+};
+
+DECLARE_HUDELEMENT( CHudAmmoSecondary );