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/*
* Portions Copyright (C) 2000-2001 Tim Angus
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the OSML - Open Source Modification License v1.0 as
* described in the file COPYING which is distributed with this source
* code.
*
* 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.
*/
#include "cg_local.h"
#define RANGE 1000.0f
#define XPOS 0.0f
#define YPOS 0.0f
#define WIDTH 640.0f
#define HEIGHT 480.0f
#define STALKWIDTH 2.0f
#define BLIPX 16.0f
#define BLIPY 8.0f
static void CG_DrawBlips( vec3_t origin, vec4_t colour )
{
vec3_t drawOrigin;
vec3_t up = { 0, 0, 1 };
RotatePointAroundVector( drawOrigin, up, origin, -cg.refdefViewAngles[ 1 ] - 90 );
drawOrigin[ 0 ] /= ( 2 * RANGE / WIDTH );
drawOrigin[ 1 ] /= ( 2 * RANGE / HEIGHT );
drawOrigin[ 2 ] /= ( 2 * RANGE / WIDTH );
trap_R_SetColor( colour );
if( drawOrigin[ 2 ] > 0 )
CG_DrawPic( XPOS + ( WIDTH / 2 ) - ( STALKWIDTH / 2 ) - drawOrigin[ 0 ],
YPOS + ( HEIGHT / 2 ) + drawOrigin[ 1 ] - drawOrigin[ 2 ],
STALKWIDTH, drawOrigin[ 2 ], cgs.media.scannerLineShader );
else
CG_DrawPic( XPOS + ( WIDTH / 2 ) - ( STALKWIDTH / 2 ) - drawOrigin[ 0 ],
YPOS + ( HEIGHT / 2 ) + drawOrigin[ 1 ],
STALKWIDTH, -drawOrigin[ 2 ], cgs.media.scannerLineShader );
CG_DrawPic( XPOS + ( WIDTH / 2 ) - ( BLIPX / 2 ) - drawOrigin[ 0 ],
YPOS + ( HEIGHT / 2 ) - ( BLIPY / 2 ) + drawOrigin[ 1 ] - drawOrigin[ 2 ],
BLIPX, BLIPY, cgs.media.scannerBlipShader );
trap_R_SetColor( NULL );
}
/*
Global Scanner draw
*/
void CG_Scanner( )
{
int i;
vec3_t origin;
vec3_t relOrigin;
vec4_t hIabove = { 0, 1, 0, 1 };
vec4_t hIbelow = { 0, 0.5, 0, 1 };
vec4_t aIabove = { 1, 0, 0, 1 };
vec4_t aIbelow = { 0.5, 0, 0, 1 };
VectorCopy( cg.refdef.vieworg, origin );
//draw human items below scanner plane
for( i = 0; i < cgIP.numHumanItems; i++ )
{
VectorClear( relOrigin );
VectorSubtract( cgIP.humanItemPositions[ i ], origin, relOrigin );
if( VectorLength( relOrigin ) < RANGE && ( relOrigin[ 2 ] < 0 ) )
CG_DrawBlips( relOrigin, hIbelow );
}
//draw alien items below scanner plane
for( i = 0; i < cgIP.numDroidItems; i++ )
{
VectorClear( relOrigin );
VectorSubtract( cgIP.droidItemPositions[ i ], origin, relOrigin );
if( VectorLength( relOrigin ) < RANGE && ( relOrigin[ 2 ] < 0 ) )
CG_DrawBlips( relOrigin, aIbelow );
}
/*CG_DrawPic( XPOS, YPOS, WIDTH, HEIGHT, cgs.media.scannerShader );*/
//draw human items above scanner plane
for( i = 0; i < cgIP.numHumanItems; i++ )
{
VectorClear( relOrigin );
VectorSubtract( cgIP.humanItemPositions[ i ], origin, relOrigin );
if( VectorLength( relOrigin ) < RANGE && ( relOrigin[ 2 ] > 0 ) )
CG_DrawBlips( relOrigin, hIabove );
}
//draw alien items above scanner plane
for( i = 0; i < cgIP.numDroidItems; i++ )
{
VectorClear( relOrigin );
VectorSubtract( cgIP.droidItemPositions[ i ], origin, relOrigin );
if( VectorLength( relOrigin ) < RANGE && ( relOrigin[ 2 ] > 0 ) )
CG_DrawBlips( relOrigin, aIabove );
}
}
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