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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 STALKWIDTH 2.0f
#define BLIPX 16.0f
#define BLIPY 8.0f
static void CG_DrawBlips( rectDef_t *rect, 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 * HELMET_RANGE / rect->w );
drawOrigin[ 1 ] /= ( 2 * HELMET_RANGE / rect->h );
drawOrigin[ 2 ] /= ( 2 * HELMET_RANGE / rect->w );
trap_R_SetColor( colour );
if( drawOrigin[ 2 ] > 0 )
CG_DrawPic( rect->x + ( rect->w / 2 ) - ( STALKWIDTH / 2 ) - drawOrigin[ 0 ],
rect->y + ( rect->h / 2 ) + drawOrigin[ 1 ] - drawOrigin[ 2 ],
STALKWIDTH, drawOrigin[ 2 ], cgs.media.scannerLineShader );
else
CG_DrawPic( rect->x + ( rect->w / 2 ) - ( STALKWIDTH / 2 ) - drawOrigin[ 0 ],
rect->y + ( rect->h / 2 ) + drawOrigin[ 1 ],
STALKWIDTH, -drawOrigin[ 2 ], cgs.media.scannerLineShader );
CG_DrawPic( rect->x + ( rect->w / 2 ) - ( BLIPX / 2 ) - drawOrigin[ 0 ],
rect->y + ( rect->h / 2 ) - ( BLIPY / 2 ) + drawOrigin[ 1 ] - drawOrigin[ 2 ],
BLIPX, BLIPY, cgs.media.scannerBlipShader );
trap_R_SetColor( NULL );
}
#define BLIPX2 24.0f
#define BLIPY2 24.0f
static void CG_DrawDir( rectDef_t *rect, vec3_t origin, vec4_t colour )
{
vec3_t drawOrigin;
vec3_t noZOrigin;
vec3_t normal, antinormal, normalDiff;
vec3_t view, noZview;
vec3_t up = { 0.0f, 0.0f, 1.0f };
vec3_t top = { 0.0f, -1.0f, 0.0f };
float angle;
playerState_t *ps = &cg.snap->ps;
if( ps->stats[ STAT_STATE ] & SS_WALLCLIMBING )
{
if( ps->stats[ STAT_STATE ] & SS_WALLCLIMBINGCEILING )
VectorSet( normal, 0.0f, 0.0f, -1.0f );
else
VectorCopy( ps->grapplePoint, normal );
}
else
VectorSet( normal, 0.0f, 0.0f, 1.0f );
AngleVectors( cg.refdefViewAngles, view, NULL, NULL );
ProjectPointOnPlane( noZOrigin, origin, normal );
ProjectPointOnPlane( noZview, view, normal );
VectorNormalize( noZOrigin );
VectorNormalize( noZview );
//calculate the angle between the images of the blip and the view
angle = RAD2DEG( acos( DotProduct( noZOrigin, noZview ) ) );
CrossProduct( noZOrigin, noZview, antinormal );
VectorNormalize( antinormal );
//decide which way to rotate
VectorSubtract( normal, antinormal, normalDiff );
if( VectorLength( normalDiff ) < 1.0f )
angle = 360.0f - angle;
RotatePointAroundVector( drawOrigin, up, top, angle );
trap_R_SetColor( colour );
CG_DrawPic( rect->x + ( rect->w / 2 ) - ( BLIPX2 / 2 ) - drawOrigin[ 0 ] * ( rect->w / 2 ),
rect->y + ( rect->h / 2 ) - ( BLIPY2 / 2 ) + drawOrigin[ 1 ] * ( rect->h / 2 ),
BLIPX2, BLIPY2, cgs.media.scannerBlipShader );
trap_R_SetColor( NULL );
}
/*
=============
CG_AlienSense
=============
*/
void CG_AlienSense( rectDef_t *rect )
{
int i;
vec3_t origin;
vec3_t relOrigin;
vec4_t buildable = { 1.0f, 0.0f, 0.0f, 0.7f };
vec4_t client = { 0.0f, 0.0f, 1.0f, 0.7f };
VectorCopy( cg.refdef.vieworg, origin );
//draw human buildables
for( i = 0; i < cg.ep.numHumanBuildables; i++ )
{
VectorClear( relOrigin );
VectorSubtract( cg.ep.humanBuildablePos[ i ], origin, relOrigin );
if( VectorLength( relOrigin ) < ALIENSENSE_RANGE )
CG_DrawDir( rect, relOrigin, buildable );
}
//draw human clients
for( i = 0; i < cg.ep.numHumanClients; i++ )
{
VectorClear( relOrigin );
VectorSubtract( cg.ep.humanClientPos[ i ], origin, relOrigin );
if( VectorLength( relOrigin ) < ALIENSENSE_RANGE )
CG_DrawDir( rect, relOrigin, client );
}
}
/*
=============
CG_Scanner
=============
*/
void CG_Scanner( rectDef_t *rect, qhandle_t shader )
{
int i;
vec3_t origin;
vec3_t relOrigin;
vec4_t hIabove = { 0.0f, 1.0f, 0.0f, 1.0f };
vec4_t hIbelow = { 0.0f, 0.5f, 0.0f, 1.0f };
vec4_t aIabove = { 1.0f, 0.0f, 0.0f, 1.0f };
vec4_t aIbelow = { 0.5f, 0.0f, 0.0f, 1.0f };
VectorCopy( cg.refdef.vieworg, origin );
//draw human buildables below scanner plane
for( i = 0; i < cg.ep.numHumanBuildables; i++ )
{
VectorClear( relOrigin );
VectorSubtract( cg.ep.humanBuildablePos[ i ], origin, relOrigin );
if( VectorLength( relOrigin ) < HELMET_RANGE && ( relOrigin[ 2 ] < 0 ) )
CG_DrawBlips( rect, relOrigin, hIbelow );
}
//draw alien buildables below scanner plane
for( i = 0; i < cg.ep.numAlienBuildables; i++ )
{
VectorClear( relOrigin );
VectorSubtract( cg.ep.alienBuildablePos[ i ], origin, relOrigin );
if( VectorLength( relOrigin ) < HELMET_RANGE && ( relOrigin[ 2 ] < 0 ) )
CG_DrawBlips( rect, relOrigin, aIbelow );
}
//draw human clients below scanner plane
for( i = 0; i < cg.ep.numHumanClients; i++ )
{
VectorClear( relOrigin );
VectorSubtract( cg.ep.humanClientPos[ i ], origin, relOrigin );
if( VectorLength( relOrigin ) < HELMET_RANGE && ( relOrigin[ 2 ] < 0 ) )
CG_DrawBlips( rect, relOrigin, hIbelow );
}
//draw alien buildables below scanner plane
for( i = 0; i < cg.ep.numAlienClients; i++ )
{
VectorClear( relOrigin );
VectorSubtract( cg.ep.alienClientPos[ i ], origin, relOrigin );
if( VectorLength( relOrigin ) < HELMET_RANGE && ( relOrigin[ 2 ] < 0 ) )
CG_DrawBlips( rect, relOrigin, aIbelow );
}
CG_DrawPic( rect->x, rect->y, rect->w, rect->h, shader );
//draw human buildables above scanner plane
for( i = 0; i < cg.ep.numHumanBuildables; i++ )
{
VectorClear( relOrigin );
VectorSubtract( cg.ep.humanBuildablePos[ i ], origin, relOrigin );
if( VectorLength( relOrigin ) < HELMET_RANGE && ( relOrigin[ 2 ] > 0 ) )
CG_DrawBlips( rect, relOrigin, hIabove );
}
//draw alien buildables above scanner plane
for( i = 0; i < cg.ep.numAlienBuildables; i++ )
{
VectorClear( relOrigin );
VectorSubtract( cg.ep.alienBuildablePos[ i ], origin, relOrigin );
if( VectorLength( relOrigin ) < HELMET_RANGE && ( relOrigin[ 2 ] > 0 ) )
CG_DrawBlips( rect, relOrigin, aIabove );
}
//draw human clients above scanner plane
for( i = 0; i < cg.ep.numHumanClients; i++ )
{
VectorClear( relOrigin );
VectorSubtract( cg.ep.humanClientPos[ i ], origin, relOrigin );
if( VectorLength( relOrigin ) < HELMET_RANGE && ( relOrigin[ 2 ] > 0 ) )
CG_DrawBlips( rect, relOrigin, hIabove );
}
//draw alien clients above scanner plane
for( i = 0; i < cg.ep.numAlienClients; i++ )
{
VectorClear( relOrigin );
VectorSubtract( cg.ep.alienClientPos[ i ], origin, relOrigin );
if( VectorLength( relOrigin ) < HELMET_RANGE && ( relOrigin[ 2 ] > 0 ) )
CG_DrawBlips( rect, relOrigin, aIabove );
}
}
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