nuclide/Source/Client/Draw.c

/*
FreeCS Project
Copyright (C) 2016, 2017 Marco "eukara" Hladik

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

#define CHAT_LINES 	5
#define CHAT_TIME 	20
var int iLineScroll = 0;

float fChatTime;
float fChatAlpha;
string sMSGBuffer[ CHAT_LINES ];

/*
=================
CSQC_Parse_Print

Receives a message and sorts it into the chat messagebuffer
=================
*/
void CSQC_Parse_Print(string sMessage, float fLevel ) {
	// This gives messages other than chat an orange tint
	if ( fLevel != PRINT_CHAT ) {
		sMessage = sprintf( "^xF80%s", sMessage );
	}
	
	if ( iLineScroll < ( CHAT_LINES - 1 ) ) {
		sMSGBuffer[ iLineScroll + 1 ] = sMessage;
		iLineScroll++;
	} else {
		for ( int i = 0; i < ( CHAT_LINES - 1 ); i++ ) {
			sMSGBuffer[ i ] = sMSGBuffer[ i + 1 ];
		}
		sMSGBuffer[ CHAT_LINES - 1 ] = sMessage;
	}
		
	fChatTime = time + CHAT_TIME;
	fChatAlpha = 1.0f;
	
	// Log to console
	localcmd( sprintf( "echo \"%s\"\n", sMessage ) );
}

/*
=================
CSQC_DrawChat

Just prints whatever is in the chat buffer and removes lines after some time.
=================
*/
void CSQC_DrawChat( void ) {
	vector vChatPos = vVideoMins + [ 16, vVideoResolution_y - 128 ];
	
	// Remove messages after a fChatTime has passed
	if ( fChatTime < time ) {
		fChatAlpha -= frametime;
	} else {
		fChatAlpha = 1.0f;
	}
	
	if ( fChatAlpha > 0.0f ) {
#if 1
		for ( int i = 0; i < CHAT_LINES; i++ ) {
			drawstring( vChatPos, sMSGBuffer[ i ], '12 12', '1 1 1', fChatAlpha, 0 );
			vChatPos_y += 14;
		}
#else
		string sDraw = sMSGBuffer[ 0 ];
		for ( int i = 1; i < CHAT_LINES; i++ ) {
			sDraw = sprintf( "%s\n%s\n", sDraw, sMSGBuffer[ i ] );
		}
		
		drawtextfield( vChatPos, [vVideoResolution_x - 32, CHAT_LINES * 12 ], 1, sDraw );
#endif
	}
}

/*
=================
CSQC_DrawCenterprint

Read centerprints from a buffer and display them with alpha and whatnot
=================
*/
float fCenterPrintAlpha;
float fCenterPrintTime;
float fCenterPrintLines;
string sCenterPrintBuffer[ 18 ];

void CSQC_DrawCenterprint( void ) {	
	if ( fCenterPrintAlpha <= 0 ) {
		return;
	}
	
	vector vCenterPrintPos;
	
	if ( fCenterPrintTime > time ) {
		fCenterPrintAlpha = 1;
	} else {
		fCenterPrintAlpha -= frametime;
		
		if ( fCenterPrintAlpha < 0 ) {
			fCenterPrintAlpha = 0;
		}
	}
	
	vCenterPrintPos_y = vVideoMins_y + ( vVideoResolution_y / 2 ) - ( fCenterPrintLines - 4 );
	
	for ( int i = 0; i < ( fCenterPrintLines ); i++ ) {
		vCenterPrintPos_x = vVideoMins_x + ( vVideoResolution_x / 2 ) - ( stringwidth( sCenterPrintBuffer[ i ], FALSE, '12 12' ) / 2 );
		drawstring( vCenterPrintPos, sCenterPrintBuffer[ i ], '12 12', '1 1 1', fCenterPrintAlpha, 0 );
		vCenterPrintPos_y += 8;
	}
}

/*
=================
CSQC_Parse_CenterPrint

Catches every centerprint call and allows us to tinker with it.
That's how we are able to add color, alpha and whatnot.
Keep in mind that newlines need to be tokenized
=================
*/
float CSQC_Parse_CenterPrint( string sMessage ) {
	fCenterPrintLines = tokenizebyseparator( sMessage, "\n" );
	
	for( int i = 0; i < ( fCenterPrintLines ); i++ ) {
		sCenterPrintBuffer[ i ] = sprintf( "^xF80%s", argv( i ) );
	}
	
	fCenterPrintAlpha = 1;
	fCenterPrintTime = time + 3;
	
	return TRUE;
}

void CSQC_CalcViewport( int s, float fWinWidth, float fWinHeight ) {
	//FIXME: this is awkward. renderscene internally rounds to pixels.
	//on the other hand, drawpic uses linear filtering and multisample and stuff.
	//this means that there can be a pixel or so difference between scene and 2d.
	//as a general rule, you won't notice unless there's some big drawfills.
	switch ( numclientseats ) {
	case 3:
		if (!s)
		{
	case 2:
		vVideoResolution = [ fWinWidth, fWinHeight * 0.5 ];
		vVideoMins = [ 0, ( s & 1 ) * vVideoResolution_y ];
		break;
		}
		s++;
	case 4:
		vVideoResolution = [ fWinWidth, fWinHeight ] * 0.5;
		vVideoMins = [ (s&1) * vVideoResolution_x, ( s / 2i ) * vVideoResolution_y ];
		break;
	default:
		vVideoResolution = [ fWinWidth, fWinHeight ];
		vVideoMins = [ 0, 0 ];
		break;
	}
}

/*
=================
CSQC_UpdateView

Entry point for drawing on the client
=================
*/
void CSQC_UpdateView( float fWinWidth, float fWinHeight, float fGameFocus ) {
	float needcursor;
	int s;
	vVideoResolution_x = fWinWidth;
	vVideoResolution_y = fWinHeight;

	clearscene();
	setproperty( VF_DRAWENGINESBAR, 0 );
	setproperty( VF_DRAWCROSSHAIR, 0 );

	//just in case...
	if ( numclientseats > seats.length ) {
		numclientseats = seats.length;
	}
	
	for ( s = seats.length; s-- > numclientseats; ) {
		pSeat = &seats[ s ];
		pSeat->fVGUI_Display = VGUI_MOTD;
		pSeat->ePlayer = world;
	}
	for ( s = numclientseats; s-- > 0; ) {
		pSeat = &seats[ s ];
		setproperty( VF_ACTIVESEAT, (float)s );
		pSeat->ePlayer = self = findfloat( world, entnum, player_localentnum );
		if ( self ) {
			Player_Predict();
		}
	}

	addentities( MASK_ENGINE );

	// Render 3D Game Loop
	for ( s = 0; s < numclientseats; s++ ) {
		pSeat = &seats[ s ];
		setproperty( VF_ACTIVESEAT, (float)s );
		Nightvision_PreDraw();


		if ( autocvar_cl_thirdperson == TRUE && getstatf( STAT_HEALTH ) ) {
			setproperty( VF_VIEWENTITY, (float)0 );
		} else {
			setproperty( VF_VIEWENTITY, (float)player_localentnum );
		}
	
		setproperty( VF_AFOV, cvar( "fov" ) * ( getstatf( STAT_VIEWZOOM ) / 255 ) );
		setsensitivityscaler( ( getstatf( STAT_VIEWZOOM ) / 255 ) );
	
		// When Cameratime is active, draw on the forced coords instead
		if ( pSeat->fCameraTime > time ) {
			setproperty( VF_ORIGIN, pSeat->vCameraPos ) ;
		} else {
			setproperty( VF_ORIGIN, pSeat->vPlayerOrigin + [ 0, 0, getstatf( STAT_VIEWHEIGHT ) ] );
			View_DrawViewModel();
		}
	
		CSQC_CalcViewport( s, fWinWidth, fWinHeight );
		setproperty( VF_MIN, vVideoMins );
		setproperty( VF_SIZE, vVideoResolution );
		setproperty( VF_ANGLES, view_angles + pSeat->vPunchAngle );
		setproperty( VF_DRAWWORLD, 1 );
		renderscene();
	}
	
	// Render Overlays, such as the HUD
	for ( s = 0; s < numclientseats; s++ ) {
		pSeat = &seats[ s ];
		setproperty( VF_ACTIVESEAT, (float)s );
		
		CSQC_CalcViewport( s, fWinWidth, fWinHeight );
		View_DropPunchAngle();
		Nightvision_PostDraw();

		if( fGameFocus == TRUE ) {
			// The spectator sees things... differently
			if ( getplayerkeyvalue( player_localnum, "*spec" ) != "0" ) {
				VGUI_DrawSpectatorHUD();
			} else {
				HUD_Draw();
			}
			
			HUD_DrawOrbituaries();
			HUD_DrawVoice();
			CSQC_DrawChat();
			
			// Don't even try to draw centerprints and VGUI menus when scores are shown
			if ( pSeat->iShowScores == TRUE ) {
				VGUI_Scores_Show();
			} else { 
				CSQC_DrawCenterprint();
				needcursor |= CSQC_VGUI_Draw();
			}
		}
	}
	
	pSeat = (void*)0x70000000i;
	
	if ( needcursor ) {
		setcursormode( TRUE, "gfx/cursor", '0 0 0', 1.0f );
	} else {
		setcursormode( FALSE, "gfx/cursor", '0 0 0', 1.0f );
	}
	
	Sound_ProcessWordQue();
}

/*
=================
CSQC_UpdateViewLoading

Doesn't really do anything useful yet
=================
*/
void CSQC_UpdateViewLoading( float fWinWidth, float fWinHeight, float fGameFocus ) {
	drawfill( [ 0, 0 ], [ fWinWidth, fWinHeight ], [ 1, 1, 1 ], 1, 0 );
}