Initial import.

1 files changed, 439 insertions, 0 deletions

diff --git a/src/cgame/cg_drawtools.c b/src/cgame/cg_drawtools.c
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+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2009 Darklegion Development
+
+This file is part of Tremulous.
+
+Tremulous 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.
+
+Tremulous 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 Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+// cg_drawtools.c -- helper functions called by cg_draw, cg_scoreboard, cg_info, etc
+
+
+#include "cg_local.h"
+
+/*
+===============
+CG_DrawPlane
+
+Draw a quad in 3 space - basically CG_DrawPic in 3 space
+===============
+*/
+void CG_DrawPlane( vec3_t origin, vec3_t down, vec3_t right, qhandle_t shader )
+{
+  polyVert_t  verts[ 4 ];
+  vec3_t      temp;
+
+  VectorCopy( origin, verts[ 0 ].xyz );
+  verts[ 0 ].st[ 0 ] = 0;
+  verts[ 0 ].st[ 1 ] = 0;
+  verts[ 0 ].modulate[ 0 ] = 255;
+  verts[ 0 ].modulate[ 1 ] = 255;
+  verts[ 0 ].modulate[ 2 ] = 255;
+  verts[ 0 ].modulate[ 3 ] = 255;
+
+  VectorAdd( origin, right, temp );
+  VectorCopy( temp, verts[ 1 ].xyz );
+  verts[ 1 ].st[ 0 ] = 1;
+  verts[ 1 ].st[ 1 ] = 0;
+  verts[ 1 ].modulate[ 0 ] = 255;
+  verts[ 1 ].modulate[ 1 ] = 255;
+  verts[ 1 ].modulate[ 2 ] = 255;
+  verts[ 1 ].modulate[ 3 ] = 255;
+
+  VectorAdd( origin, right, temp );
+  VectorAdd( temp, down, temp );
+  VectorCopy( temp, verts[ 2 ].xyz );
+  verts[ 2 ].st[ 0 ] = 1;
+  verts[ 2 ].st[ 1 ] = 1;
+  verts[ 2 ].modulate[ 0 ] = 255;
+  verts[ 2 ].modulate[ 1 ] = 255;
+  verts[ 2 ].modulate[ 2 ] = 255;
+  verts[ 2 ].modulate[ 3 ] = 255;
+
+  VectorAdd( origin, down, temp );
+  VectorCopy( temp, verts[ 3 ].xyz );
+  verts[ 3 ].st[ 0 ] = 0;
+  verts[ 3 ].st[ 1 ] = 1;
+  verts[ 3 ].modulate[ 0 ] = 255;
+  verts[ 3 ].modulate[ 1 ] = 255;
+  verts[ 3 ].modulate[ 2 ] = 255;
+  verts[ 3 ].modulate[ 3 ] = 255;
+
+  trap_R_AddPolyToScene( shader, 4, verts );
+}
+
+/*
+================
+CG_AdjustFrom640
+
+Adjusted for resolution and screen aspect ratio
+================
+*/
+void CG_AdjustFrom640( float *x, float *y, float *w, float *h )
+{
+#if 0
+  // adjust for wide screens
+  if ( cgs.glconfig.vidWidth * 480 > cgs.glconfig.vidHeight * 640 ) {
+    *x += 0.5 * ( cgs.glconfig.vidWidth - ( cgs.glconfig.vidHeight * 640 / 480 ) );
+  }
+#endif
+  // scale for screen sizes
+  *x *= cgs.screenXScale;
+  *y *= cgs.screenYScale;
+  *w *= cgs.screenXScale;
+  *h *= cgs.screenYScale;
+}
+
+/*
+================
+CG_FillRect
+
+Coordinates are 640*480 virtual values
+=================
+*/
+void CG_FillRect( float x, float y, float width, float height, const float *color )
+{
+  trap_R_SetColor( color );
+
+  CG_AdjustFrom640( &x, &y, &width, &height );
+  trap_R_DrawStretchPic( x, y, width, height, 0, 0, 0, 0, cgs.media.whiteShader );
+
+  trap_R_SetColor( NULL );
+}
+
+
+/*
+================
+CG_DrawSides
+
+Coords are virtual 640x480
+================
+*/
+void CG_DrawSides( float x, float y, float w, float h, float size )
+{
+  float sizeY;
+
+  CG_AdjustFrom640( &x, &y, &w, &h );
+  sizeY = size * cgs.screenYScale;
+  size *= cgs.screenXScale;
+
+  trap_R_DrawStretchPic( x, y + sizeY, size, h - ( sizeY * 2.0f ), 0, 0, 0, 0, cgs.media.whiteShader );
+  trap_R_DrawStretchPic( x + w - size, y + sizeY, size, h - ( sizeY * 2.0f ), 0, 0, 0, 0, cgs.media.whiteShader );
+}
+
+void CG_DrawTopBottom( float x, float y, float w, float h, float size )
+{
+  CG_AdjustFrom640( &x, &y, &w, &h );
+  size *= cgs.screenYScale;
+  trap_R_DrawStretchPic( x, y, w, size, 0, 0, 0, 0, cgs.media.whiteShader );
+  trap_R_DrawStretchPic( x, y + h - size, w, size, 0, 0, 0, 0, cgs.media.whiteShader );
+}
+
+
+/*
+================
+CG_DrawRect
+
+Coordinates are 640*480 virtual values
+=================
+*/
+void CG_DrawRect( float x, float y, float width, float height, float size, const float *color )
+{
+  trap_R_SetColor( color );
+
+  CG_DrawTopBottom( x, y, width, height, size );
+  CG_DrawSides( x, y, width, height, size );
+
+  trap_R_SetColor( NULL );
+}
+
+
+/*
+================
+CG_DrawPic
+
+Coordinates are 640*480 virtual values
+=================
+*/
+void CG_DrawPic( float x, float y, float width, float height, qhandle_t hShader )
+{
+  CG_AdjustFrom640( &x, &y, &width, &height );
+  trap_R_DrawStretchPic( x, y, width, height, 0, 0, 1, 1, hShader );
+}
+
+/*
+================
+CG_SetClipRegion
+=================
+*/
+void CG_SetClipRegion( float x, float y, float w, float h )
+{
+  vec4_t clip;
+
+  CG_AdjustFrom640( &x, &y, &w, &h );
+
+  clip[ 0 ] = x;
+  clip[ 1 ] = y;
+  clip[ 2 ] = x + w;
+  clip[ 3 ] = y + h;
+
+  trap_R_SetClipRegion( clip );
+}
+
+/*
+================
+CG_ClearClipRegion
+=================
+*/
+void CG_ClearClipRegion( void )
+{
+  trap_R_SetClipRegion( NULL );
+}
+
+/*
+================
+CG_DrawFadePic
+
+Coordinates are 640*480 virtual values
+=================
+*/
+void CG_DrawFadePic( float x, float y, float width, float height, vec4_t fcolor,
+                     vec4_t tcolor, float amount, qhandle_t hShader )
+{
+  vec4_t  finalcolor;
+  float   inverse;
+
+  inverse = 100 - amount;
+
+  CG_AdjustFrom640( &x, &y, &width, &height );
+
+  finalcolor[ 0 ] = ( ( inverse * fcolor[ 0 ] ) + ( amount * tcolor[ 0 ] ) ) / 100;
+  finalcolor[ 1 ] = ( ( inverse * fcolor[ 1 ] ) + ( amount * tcolor[ 1 ] ) ) / 100;
+  finalcolor[ 2 ] = ( ( inverse * fcolor[ 2 ] ) + ( amount * tcolor[ 2 ] ) ) / 100;
+  finalcolor[ 3 ] = ( ( inverse * fcolor[ 3 ] ) + ( amount * tcolor[ 3 ] ) ) / 100;
+
+  trap_R_SetColor( finalcolor );
+  trap_R_DrawStretchPic( x, y, width, height, 0, 0, 1, 1, hShader );
+  trap_R_SetColor( NULL );
+}
+
+/*
+=================
+CG_DrawStrlen
+
+Returns character count, skiping color escape codes
+=================
+*/
+int CG_DrawStrlen( const char *str )
+{
+  const char  *s = str;
+  int         count = 0;
+
+  while( *s )
+  {
+    if( Q_IsColorString( s ) )
+      s += 2;
+    else
+    {
+      count++;
+      s++;
+    }
+  }
+
+  return count;
+}
+
+/*
+=============
+CG_TileClearBox
+
+This repeats a 64*64 tile graphic to fill the screen around a sized down
+refresh window.
+=============
+*/
+static void CG_TileClearBox( int x, int y, int w, int h, qhandle_t hShader )
+{
+  float s1, t1, s2, t2;
+
+  s1 = x / 64.0;
+  t1 = y / 64.0;
+  s2 = ( x + w ) / 64.0;
+  t2 = ( y + h ) / 64.0;
+  trap_R_DrawStretchPic( x, y, w, h, s1, t1, s2, t2, hShader );
+}
+
+
+
+/*
+==============
+CG_TileClear
+
+Clear around a sized down screen
+==============
+*/
+void CG_TileClear( void )
+{
+  int   top, bottom, left, right;
+  int   w, h;
+
+  w = cgs.glconfig.vidWidth;
+  h = cgs.glconfig.vidHeight;
+
+  if( cg.refdef.x == 0 && cg.refdef.y == 0 &&
+      cg.refdef.width == w && cg.refdef.height == h )
+    return;   // full screen rendering
+
+  top = cg.refdef.y;
+  bottom = top + cg.refdef.height - 1;
+  left = cg.refdef.x;
+  right = left + cg.refdef.width - 1;
+
+  // clear above view screen
+  CG_TileClearBox( 0, 0, w, top, cgs.media.backTileShader );
+
+  // clear below view screen
+  CG_TileClearBox( 0, bottom, w, h - bottom, cgs.media.backTileShader );
+
+  // clear left of view screen
+  CG_TileClearBox( 0, top, left, bottom - top + 1, cgs.media.backTileShader );
+
+  // clear right of view screen
+  CG_TileClearBox( right, top, w - right, bottom - top + 1, cgs.media.backTileShader );
+}
+
+/*
+================
+CG_FadeColor
+================
+*/
+float *CG_FadeColor( int startMsec, int totalMsec )
+{
+  static vec4_t   color;
+  int     t;
+
+  if( startMsec == 0 )
+    return NULL;
+
+  t = cg.time - startMsec;
+
+  if( t >= totalMsec )
+    return NULL;
+
+  // fade out
+  if( totalMsec - t < FADE_TIME )
+    color[ 3 ] = ( totalMsec - t ) * 1.0 / FADE_TIME;
+  else
+    color[ 3 ] = 1.0;
+
+  color[ 0 ] = color[ 1 ] = color[ 2 ] = 1;
+
+  return color;
+}
+
+/*
+================
+CG_WorldToScreen
+================
+*/
+qboolean CG_WorldToScreen( vec3_t point, float *x, float *y )
+{
+  vec3_t  trans;
+  float   xc, yc;
+  float   px, py;
+  float   z;
+
+  px = tan( cg.refdef.fov_x * M_PI / 360.0f );
+  py = tan( cg.refdef.fov_y * M_PI / 360.0f );
+
+  VectorSubtract( point, cg.refdef.vieworg, trans );
+
+  xc = ( 640.0f * cg_viewsize.integer ) / 200.0f;
+  yc = ( 480.0f * cg_viewsize.integer ) / 200.0f;
+
+  z = DotProduct( trans, cg.refdef.viewaxis[ 0 ] );
+  if( z <= 0.001f )
+    return qfalse;
+
+  if( x )
+    *x = 320.0f - DotProduct( trans, cg.refdef.viewaxis[ 1 ] ) * xc / ( z * px );
+
+  if( y )
+    *y = 240.0f - DotProduct( trans, cg.refdef.viewaxis[ 2 ] ) * yc / ( z * py );
+
+  return qtrue;
+}
+
+/*
+================
+CG_KeyBinding
+================
+*/
+char *CG_KeyBinding( const char *bind )
+{
+  static char key[ 32 ];
+  char bindbuff[ MAX_CVAR_VALUE_STRING ];
+  int i;
+
+  key[ 0 ] = '\0';
+
+  // NOTE: change K_LAST_KEY to MAX_KEYS for full key support (eventually)
+  for( i = 0; i < K_LAST_KEY; i++ )
+  {
+    trap_Key_GetBindingBuf( i, bindbuff, sizeof( bindbuff ) );
+    if( !Q_stricmp( bindbuff, bind ) )
+    {
+      trap_Key_KeynumToStringBuf( i, key, sizeof( key ) );
+      break;
+    }
+  }
+
+  if( !key[ 0 ] )
+  {
+    Q_strncpyz( key, "\\", sizeof( key ) );
+    Q_strcat( key, sizeof( key ), bind );
+  }
+
+  return key;
+}
+
+/*
+=================
+CG_GetColorCharForHealth
+=================
+*/
+char CG_GetColorCharForHealth( int clientnum )
+{
+  char health_char = '2';
+  int  healthPercent;
+  int  maxHealth;
+  int  curWeaponClass = cgs.clientinfo[ clientnum ].curWeaponClass;
+
+  if( cgs.clientinfo[ clientnum ].team == TEAM_ALIENS )
+    maxHealth = BG_Class( curWeaponClass )->health;
+  else
+    maxHealth = BG_Class( PCL_HUMAN )->health;
+
+  healthPercent = (int) ( 100.0f * (float) cgs.clientinfo[ clientnum ].health /
+                        (float) maxHealth );
+
+  if( healthPercent < 33 )
+    health_char = '1';
+  else if( healthPercent < 67 )
+    health_char = '3';
+  return health_char;
+}