st/code/cgame/cg_drawtools.c

271 lines
6.3 KiB
C

/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
Copyright (C) 2007 HermitWorks Entertainment Corporation
This file is part of the Space Trader source code.
The Space Trader source code 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.
The Space Trader source code 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 the Space Trader source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include "cg_local.h"
//cg_drawtools.c -- helper functions called by cg_draw, cg_scoreboard, cg_info, etc
/*
================
CG_AdjustFrom640
Adjusted for resolution and screen aspect ratio
================
*/
void CG_AdjustFrom640( float *x, float *y, float *w, float *h ) {
// scale for screen sizes
*x = *x * cgDC.glconfig.xscale + cgDC.glconfig.xbias;
*y *= cgDC.glconfig.yscale;
*w *= cgDC.glconfig.xscale;
*h *= cgDC.glconfig.yscale;
}
void CG_AdjustTo640( int *x, int *y )
{
float X = (float)*x;
float Y = (float)*y;
X = (X - cgDC.glconfig.xbias) / cgDC.glconfig.xscale;
Y = Y / cgDC.glconfig.yscale;
*x = (int)X;
*y = (int)Y;
}
/*
================
CG_DrawSides
Coords are virtual 640x480
================
*/
void CG_DrawSides(float x, float y, float w, float h, float size) {
CG_AdjustFrom640( &x, &y, &w, &h );
size *= cgDC.glconfig.xscale;
trap_R_DrawStretchPic( x, y, size, h, 0, 0, 0, 0, cgs.media.whiteShader );
trap_R_DrawStretchPic( x + w - size, y, size, h, 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 *= cgDC.glconfig.yscale;
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 );
}
/*
================
UI_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, 0.0f, 0.0f, 1.0f, 1.0f, hShader );
}
/*
=============
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/64.0f;
t1 = y/64.0f;
s2 = (x+w)/64.0f;
t2 = (y+h)/64.0f;
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 = cgDC.glconfig.vidWidth;
h = cgDC.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_TeamColor
================
*/
float *CG_TeamColor( int team ) {
static vec4_t red = {1, 0.2f, 0.2f, 1};
static vec4_t blue = {0.2f, 0.2f, 1, 1};
static vec4_t other = {1, 1, 1, 1};
static vec4_t spectator = {0.7f, 0.7f, 0.7f, 1};
switch ( team ) {
case TEAM_RED:
return red;
case TEAM_BLUE:
return blue;
case TEAM_SPECTATOR:
return spectator;
default:
return other;
}
}
/*
=================
CG_GetColorForHealth
=================
*/
void CG_GetColorForHealth( int health, int armor, vec4_t hcolor ) {
int count;
int max;
// calculate the total points of damage that can
// be sustained at the current health / armor level
if ( health <= 0 ) {
VectorClear( hcolor ); // black
hcolor[3] = 1;
return;
}
count = armor;
max = health * ARMOR_PROTECTION / ( 1.0f - ARMOR_PROTECTION );
if ( max < count ) {
count = max;
}
health += count;
// set the color based on health
hcolor[0] = 1.0f;
hcolor[3] = 1.0f;
if ( health >= 100 ) {
hcolor[2] = 1.0f;
} else if ( health < 66 ) {
hcolor[2] = 0.0f;
} else {
hcolor[2] = (float)( health - 66 ) / 33.0f;
}
if ( health > 60 ) {
hcolor[1] = 1.0f;
} else if ( health < 30 ) {
hcolor[1] = 0.0f;
} else {
hcolor[1] = (float)( health - 30 ) / 30.0f;
}
}
/*
=================
CG_ColorForHealth
=================
*/
void CG_ColorForHealth( vec4_t hcolor ) {
CG_GetColorForHealth( cg.snap->ps.stats[STAT_HEALTH],
cg.snap->ps.shields, hcolor );
}