Renegade/Code/Combat/sniper.cpp

/*
**	Command & Conquer Renegade(tm)
**	Copyright 2025 Electronic Arts Inc.
**
**	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 3 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, see <http://www.gnu.org/licenses/>.
*/

/*********************************************************************************************** 
 ***                            Confidential - Westwood Studios                              *** 
 *********************************************************************************************** 
 *                                                                                             * 
 *                 Project Name : Commando                                                     * 
 *                                                                                             * 
 *                     $Archive:: /Commando/Code/Combat/sniper.cpp                            $* 
 *                                                                                             * 
 *                      $Author:: Byon_g                                                      $* 
 *                                                                                             * 
 *                     $Modtime:: 7/05/01 11:37a                                              $* 
 *                                                                                             * 
 *                    $Revision:: 60                                                          $* 
 *                                                                                             * 
 *---------------------------------------------------------------------------------------------* 
 * Functions:                                                                                  * 
 * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

#include "sniper.h"
#include "render2d.h"
#include "texture.h"
#include "assets.h"
#include "combat.h"
#include "ccamera.h"
#include "debug.h"
#include "globalsettings.h"
#include "timemgr.h"

#include "input.h"

/*
**
*/
Vector2	SNIPER_UV_SCALE( 1.0f/128.0f, 1.0f/128.0f );

Vector2 BLACK_UV_UL( 1, 1 );
Vector2 BLACK_UV_LR( 5, 7 );
Vector2 SNIPER_VIEW_UV_UL( 1, 2 );
Vector2 SNIPER_VIEW_UV_LR( 115, 115 );
Vector2 SNIPER_VIEW_UL( 193, 153 );
Vector2 SNIPER_VIEW_LR( 839, 853 );
Vector2 BOX_SIZE( 235, 127 );
Vector2 TOP_LINE_1( 149, 209 );
Vector2 TOP_LINE_2( 151, 426 );
Vector2 TOP_LINE_3( 151, 403 );
Vector2 BOTTOM_LINE_1( 543, 768 );
Vector2 BOTTOM_LINE_2( 34, 597 );
Vector2 BOTTOM_LINE_3( 519, 10 );
Vector2 CENTER_LINE_1( 144, 42 );
Vector2 CENTER_LINE_2( 166, 117 );
Vector2 LEFT_LINE_UL( 203, 723 );
Vector2 LEFT_LINE_LR( 222, 10 );
Vector2 LEFT_LINE_2( 247, 435 );
Vector2 ZOOM_UV_UL( 117, 41 );
Vector2 ZOOM_UV_LR( 128, 62 );
Vector2 ZOOM_OFFSET_TOP( 177, 620 );
Vector2 ZOOM_OFFSET_BOTTOM( 177, 316 );


/*
**
*/
#define	SNIPER_LEFT_BLACK_COVER		RectClass( 0, 0, settings->SniperView.Left, 1 )
#define	SNIPER_RIGHT_BLACK_COVER	RectClass( settings->SniperView.Right, 0, 1, 1 )
#define	SNIPER_TOP_BLACK_COVER		RectClass( settings->SniperView.Left, 0, settings->SniperView.Right, settings->SniperView.Top )
#define	SNIPER_BOTTOM_BLACK_COVER	RectClass( settings->SniperView.Left, settings->SniperView.Bottom, settings->SniperView.Right, 1 )

/*
**
*/
Render2DClass		*	_Sniper2DBaseRenderer;
Render2DClass		*	_Sniper2DRenderer;

#define	HUD_SNIPER_TEXTURE			"hud_sniper.tga"


static	void	Info_Editor_Init( void ); 
static	void	Info_Editor_Update( void ); 
static	void	Info_Editor_Shutdown( void ); 

/*
**
*/
void 	SniperHUDClass::Init( void )
{
	_Sniper2DBaseRenderer = new Render2DClass();
	_Sniper2DBaseRenderer->Set_Texture( HUD_SNIPER_TEXTURE );
	_Sniper2DBaseRenderer->Set_Coordinate_Range( Render2DClass::Get_Screen_Resolution() );

	Build_Base();

	_Sniper2DRenderer = new Render2DClass();
	_Sniper2DRenderer->Set_Texture( HUD_SNIPER_TEXTURE );
	_Sniper2DRenderer->Set_Coordinate_Range( Render2DClass::Get_Screen_Resolution() );

//	Info_Editor_Init(); 
}

/*
**
*/
void 	SniperHUDClass::Shutdown( void )
{
	if ( _Sniper2DBaseRenderer ) {
		delete _Sniper2DBaseRenderer;
		_Sniper2DBaseRenderer = NULL;
	}

	if ( _Sniper2DRenderer ) {
		delete _Sniper2DRenderer;
		_Sniper2DRenderer = NULL;
	}

//	Info_Editor_Shutdown(); 
}


void  SniperHUDClass::Build_Base( void ) 
{
	if ( _Sniper2DBaseRenderer == NULL ) {
		return;
	}

	_Sniper2DBaseRenderer->Reset();

	RectClass uv;
	RectClass draw;
	
	uv.Set( SNIPER_VIEW_UV_UL, SNIPER_VIEW_UV_LR );
	uv.Scale( SNIPER_UV_SCALE );

	Vector2	screen_size = Render2DClass::Get_Screen_Resolution().Lower_Right();
	Vector2	screen_center = screen_size * 0.5f;
	Vector2	screen_scale = screen_size * 0.001f;

	// Set tint color
	int tint = 0xFF0000FF;	// Blue
	tint = 0xFF00FF00;	// Green

	// Draw the center view
	draw.Set( SNIPER_VIEW_UL, SNIPER_VIEW_LR );
	draw.Scale( screen_scale );
	_Sniper2DBaseRenderer->Add_Quad( draw, uv, tint );

	// Draw the black sides
	RectClass blackuv( BLACK_UV_UL, BLACK_UV_LR );
	blackuv.Scale( SNIPER_UV_SCALE );
	RectClass edge;
	edge.Set( 0, 0, draw.Left, screen_size.Y );						// Left
	_Sniper2DBaseRenderer->Add_Quad( edge, blackuv );
	edge.Set( draw.Right, 0, screen_size.X, screen_size.Y );		// Right
	_Sniper2DBaseRenderer->Add_Quad( edge, blackuv );
	edge.Set( draw.Left, 0, draw.Right, draw.Top );					// Top
	_Sniper2DBaseRenderer->Add_Quad( edge, blackuv );
	edge.Set( draw.Left, draw.Bottom, draw.Right, screen_size.Y );	// Bottom
	_Sniper2DBaseRenderer->Add_Quad( edge, blackuv );

	// Draw the center box
	Vector2	box_corner = BOX_SIZE;
	box_corner.Scale( screen_scale );
	RectClass	box( -box_corner, box_corner );
	box += screen_center;		// Center it
	_Sniper2DBaseRenderer->Add_Outline( box, 1, blackuv );

	// Draw the top line
	Vector2	top_line_1 = TOP_LINE_1;
	top_line_1.Scale( screen_scale );
	_Sniper2DBaseRenderer->Add_Line( Vector2(screen_center.X,0), Vector2(screen_center.X,top_line_1.Y), 1, blackuv );

	// Draw the top line 2
	Vector2	top_line_2 = TOP_LINE_2;
	top_line_2.Scale( screen_scale );
	_Sniper2DBaseRenderer->Add_Line( Vector2(screen_center.X,box.Top), Vector2(screen_center.X,top_line_2.Y), 1, blackuv );

	// Draw the top line 3
	Vector2	top_line_3 = TOP_LINE_3;
	top_line_3.Scale( screen_scale );
	_Sniper2DBaseRenderer->Add_Line( Vector2(screen_center.X,box.Top), Vector2(screen_center.X,top_line_3.Y), 3, blackuv );

	// Draw the bottom line
	Vector2 bottom_line_1 = BOTTOM_LINE_1;
	bottom_line_1.Scale( screen_scale.Y, screen_scale.Y ); 
	_Sniper2DBaseRenderer->Add_Line( Vector2(screen_center.X,bottom_line_1.X), Vector2(screen_center.X,bottom_line_1.Y), 1, blackuv );

	// Draw the bottom line 2
	Vector2 bottom_line_2 = BOTTOM_LINE_2;
	bottom_line_2.Scale( screen_scale );
	_Sniper2DBaseRenderer->Add_Line( Vector2(screen_center.X - bottom_line_2.X,bottom_line_2.Y), Vector2(screen_center.X + bottom_line_2.X,bottom_line_2.Y), 1, blackuv );

	// Draw the bottom line 3
	float y;
	float left = screen_center.X + 3;
	float right = BOTTOM_LINE_3.X * screen_scale.X;
	float step = BOTTOM_LINE_3.Y * screen_scale.Y;
	for ( y = bottom_line_2.Y; y < bottom_line_1.Y; y += step ) {
		_Sniper2DBaseRenderer->Add_Line( Vector2(left,y), Vector2(right,y), 1, blackuv );
	}

	// Draw the left lines
	left = LEFT_LINE_UL.X * screen_scale.X;
	right = LEFT_LINE_LR.X * screen_scale.X;
	for ( y = screen_center.Y; y < LEFT_LINE_UL.Y * screen_scale.Y; y += LEFT_LINE_LR.Y * screen_scale.Y ) {
		float flip = screen_size.Y - y;
		_Sniper2DBaseRenderer->Add_Line(	Vector2( left, y ), Vector2( right,y ), 1, blackuv );
		_Sniper2DBaseRenderer->Add_Line(	Vector2( left, flip ), Vector2( right, flip ), 1, blackuv );
	}

	// Draw the right line
	_Sniper2DBaseRenderer->Add_Line( Vector2(box.Right,screen_center.Y), Vector2(screen_size.X,screen_center.Y), 1, blackuv );

	// Draw the center line
	Vector2 center_line( -screen_scale.X, screen_scale.X );
	center_line *= CENTER_LINE_1.X;
	center_line += Vector2( screen_center.X, screen_center.X);
	_Sniper2DBaseRenderer->Add_Line( Vector2(center_line.X,screen_center.Y), Vector2(center_line.Y,screen_center.Y), 1, blackuv );

	// Draw the center line 2
	center_line = Vector2( screen_scale.X, screen_scale.X );
	center_line.Scale( CENTER_LINE_2 );
	center_line += Vector2( screen_center.X, screen_center.X);
	_Sniper2DBaseRenderer->Add_Line( Vector2(center_line.X,screen_center.Y), Vector2(center_line.Y,screen_center.Y), 3, blackuv );
	center_line -= Vector2( screen_center.X, screen_center.X);
	center_line *= -1;
	center_line += Vector2( screen_center.X, screen_center.X);
	_Sniper2DBaseRenderer->Add_Line( Vector2(center_line.X,screen_center.Y), Vector2(center_line.Y,screen_center.Y), 3, blackuv );

	// Draw the left line
	_Sniper2DBaseRenderer->Add_Line( Vector2(0, screen_center.Y), Vector2(LEFT_LINE_2.X*screen_scale.X,screen_center.Y), 1, blackuv );
}


/*
**
*/
void 	SniperHUDClass::Update( void )
{
//	Info_Editor_Update();

	if ( _Sniper2DRenderer == NULL ) {
		return;
	}

	_Sniper2DRenderer->Reset();

	Vector2	screen_size = Render2DClass::Get_Screen_Resolution().Lower_Right();
	Vector2	screen_scale = screen_size * 0.001f;

	// Set tint color
	int tint = 0xFF0000FF;	// Blue
	tint = 0xFF00FF00;	// Green
	
	// Draw Zoom Indicator
	RectClass uv;
	uv.Set( ZOOM_UV_UL, ZOOM_UV_LR );
	RectClass draw = uv;
	uv.Scale( SNIPER_UV_SCALE );

	float zoom_ratio = COMBAT_CAMERA->Get_Sniper_Zoom();
	Vector2 pos = ((ZOOM_OFFSET_BOTTOM - ZOOM_OFFSET_TOP) * zoom_ratio) + ZOOM_OFFSET_TOP;
	pos.Scale( screen_scale );
	draw += pos - draw.Center();
	_Sniper2DRenderer->Add_Quad( draw, uv, tint );

#if 0
	// Add Scanline
	static float _scan_line_offset = 0;
	RectClass	scan_line = settings->SniperView;
	scan_line.Bottom = scan_line.Top + 0.005f;
	_scan_line_offset += TimeManager::Get_Frame_Seconds() * 0.1f;
	if ( _scan_line_offset > settings->SniperView.Height() + 0.05f ) {
		_scan_line_offset = -0.05f;
	}
	scan_line += Vector2( 0, _scan_line_offset );
	_Sniper2DRenderer->Add_Quad( scan_line,	Scale_UV( settings->SniperScanLineUV, sniper_texture_size ) );

	// Add Distance Graph
	float dist = COMBAT_CAMERA->Get_Sniper_Distance();
	float dist_ratio = WWMath::Clamp( dist / settings->SniperDistanceGraphMax, 0, 1 );
	dist_ratio = WWMath::Sqrt( dist_ratio );
	RectClass	dist_screen = settings->SniperDistanceGraph;
	RectClass	dist_uv = Scale_UV( settings->SniperDistanceGraphUV, sniper_texture_size );
	dist_screen.Top = dist_screen.Bottom - dist_screen.Height() * dist_ratio;
	dist_uv.Top = dist_uv.Bottom - dist_uv.Height() * dist_ratio;
	_Sniper2DRenderer->Add_Quad( dist_screen, dist_uv );
#endif

}

/*
**
*/
void 	SniperHUDClass::Render( void )
{
	if ( _Sniper2DBaseRenderer ) {
		_Sniper2DBaseRenderer->Render();
	}

	if ( _Sniper2DRenderer ) {
		_Sniper2DRenderer->Render();
	}
}


#if 0

/*
** Info Display
*/
struct InfoEditorField {
	const char * Name;
	Vector2	*	 Value;
	bool operator == (InfoEditorField const & rec) const	{ return false; }
	bool operator != (InfoEditorField const & rec) const	{ return true; }
};

static	DynamicVectorClass<InfoEditorField>	InfoEditorFieldList;

#define	INFO_EDITOR_ADD(x)	  field.Name = #x; field.Value = &x; InfoEditorFieldList.Add( field );

static	void	Info_Editor_Init( void ) 
{
	InfoEditorField field;

	INFO_EDITOR_ADD( BLACK_UV_UL );
	INFO_EDITOR_ADD( BLACK_UV_LR );
	INFO_EDITOR_ADD( SNIPER_VIEW_UV_UL );
	INFO_EDITOR_ADD( SNIPER_VIEW_UV_LR );
	INFO_EDITOR_ADD( SNIPER_VIEW_UL );
	INFO_EDITOR_ADD( SNIPER_VIEW_LR );
	INFO_EDITOR_ADD( BOX_SIZE );
	INFO_EDITOR_ADD( TOP_LINE_1 );
	INFO_EDITOR_ADD( TOP_LINE_2 );
	INFO_EDITOR_ADD( TOP_LINE_3 );
	INFO_EDITOR_ADD( BOTTOM_LINE_1 );
	INFO_EDITOR_ADD( BOTTOM_LINE_2 );
	INFO_EDITOR_ADD( BOTTOM_LINE_3 );
	INFO_EDITOR_ADD( CENTER_LINE_1 );
	INFO_EDITOR_ADD( CENTER_LINE_2 );
	INFO_EDITOR_ADD( LEFT_LINE_UL );
	INFO_EDITOR_ADD( LEFT_LINE_LR );
	INFO_EDITOR_ADD( LEFT_LINE_2 );
	INFO_EDITOR_ADD( ZOOM_UV_UL );
	INFO_EDITOR_ADD( ZOOM_UV_LR );
	INFO_EDITOR_ADD( ZOOM_OFFSET_TOP );
	INFO_EDITOR_ADD( ZOOM_OFFSET_BOTTOM );
}

static	void	Info_Editor_Update( void ) 
{
	bool changed = false;
	static	int index = 0;

	static float _move = 0;
	float move = Input::Get_Amount( INPUT_FUNCTION_MOVE_LEFT ) - Input::Get_Amount( INPUT_FUNCTION_MOVE_RIGHT );
	if ( _move != move ) {
		_move = move;
		index += (int)-move;
		index = (int)WWMath::Wrap( index, (float)0, (float)(InfoEditorFieldList.Count()) );
		if ( move != 0 ) {
			changed = true;
		}
	}

	float _forward = 0;
	float forward = Input::Get_Amount( INPUT_FUNCTION_MOVE_FORWARD ) - Input::Get_Amount( INPUT_FUNCTION_MOVE_BACKWARD );
	forward *= 10;
	forward = WWMath::Clamp( forward, -1, 1 );
	if ( _forward != forward ) {
		_forward = forward;
		InfoEditorFieldList[index].Value->V += forward;
		if ( forward != 0 ) {
			changed = true;
		}
	}

	float _left = 0;
	float left = Input::Get_Amount( INPUT_FUNCTION_TURN_LEFT ) - Input::Get_Amount( INPUT_FUNCTION_TURN_RIGHT );
	left *= 10;
	left = WWMath::Clamp( left, -1, 1 );
	if ( _left != left ) {
		_left = left;
		InfoEditorFieldList[index].Value->U += left;
		if ( left != 0 ) {
			changed = true;
		}
	}

	if ( changed ) {
		Debug_Say(( "Vector2 %s( %d, %d );\n", InfoEditorFieldList[index].Name, (int)InfoEditorFieldList[index].Value->U, (int)InfoEditorFieldList[index].Value->V ));
	}

}

static	void	Info_Editor_Shutdown( void ) 
{
	while ( InfoEditorFieldList.Count() > 0 ) {
		Debug_Say(( "Vector2 %s( %d, %d );\n", InfoEditorFieldList[0].Name, (int)InfoEditorFieldList[0].Value->U, (int)InfoEditorFieldList[0].Value->V ));
		InfoEditorFieldList.Delete(0);
	}
}


#endif