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Initial commit of Command & Conquer Renegade source code.

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LFeenanEA
2025-02-27 16:39:46 +00:00
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commit 58ed459113
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Code/Combat/SoundEnvironment.cpp Normal file
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/*
** 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/>.
*/
/***********************************************************************************************
*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
***********************************************************************************************
* *
* Project Name : Commando *
* *
* $Archive:: /Commando/Code/Combat/SoundEnvironment.cpp $*
* *
* Author:: Ian Leslie *
* *
* $Modtime:: 5/21/01 2:16p $*
* *
* $Revision:: 7 $*
* *
*---------------------------------------------------------------------------------------------*
* Functions: *
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
// Includes.
#include "soundenvironment.h"
#include "camera.h"
#include "combat.h"
#include "gameobjmanager.h"
#include "phys.h"
#include "physcoltest.h"
#include "pscene.h"
/***********************************************************************************************
* SoundEnvironmentClass::SoundEnvironmentClass -- *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 04/16/01 IML : Created. *
*=============================================================================================*/
SoundEnvironmentClass::SoundEnvironmentClass()
: UserCount (0)
{
// Initialize the amplitude mixing buffer.
AmplitudeBuffer = new float [AMPLITUDE_BUFFER_SIZE];
WWASSERT (AmplitudeBuffer != NULL);
Reset();
}
/***********************************************************************************************
* SoundEnvironmentClass::Reset -- *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 04/16/01 IML : Created. *
*=============================================================================================*/
void SoundEnvironmentClass::Reset()
{
// Clear the amplitude buffer.
AmplitudeIndex = 0;
AmplitudeSum = 0.0f;
for (unsigned i = 0; i < AMPLITUDE_BUFFER_SIZE; i++) {
AmplitudeBuffer [i] = 0.0f;
}
}
/***********************************************************************************************
* SoundEnvironmentClass::~SoundEnvironmentClass -- *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 04/20/01 PDS : Created. *
*=============================================================================================*/
SoundEnvironmentClass::~SoundEnvironmentClass()
{
delete [] AmplitudeBuffer;
}
/***********************************************************************************************
* SoundEnvironmentClass::Update -- *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 04/16/01 IML : Created. *
*=============================================================================================*/
void SoundEnvironmentClass::Update (PhysicsSceneClass *scene, CameraClass *camera)
{
// Optimization: only update if this object is being used.
if (UserCount > 0) {
Vector3 cameraposition;
Vector3 scenemin, scenemax;
float amplitude;
cameraposition = camera->Get_Position();
// Get the highest point in the scene.
scene->Get_Level_Extents (scenemin, scenemax);
// Expand the bounding box by a small amount so that we can distinguish between collisions with geometry and
// collisions with the bounding box.
scenemin.Z -= 1.0f;
scenemax.Z += 1.0f;
// Cast a ray from the camera position upwards.
{
Vector3 raycastendpoint (cameraposition.X, cameraposition.Y, scenemax.Z);
LineSegClass raycast (cameraposition, raycastendpoint);
CastResultStruct rayresult;
PhysRayCollisionTestClass raytest (raycast, &rayresult, TERRAIN_ONLY_COLLISION_GROUP, COLLISION_TYPE_PROJECTILE);
scene->Cast_Ray (raytest);
// Did the ray hit an object?
if (raytest.Result->Fraction < 1.0f) {
// Is the camera in an environment zone (in which case environmental sounds should not be heard)?
if (GameObjManager::Is_In_Environment_Zone (cameraposition)) {
amplitude = 0.0f;
} else {
amplitude = 0.5f;
}
} else {
amplitude = 1.0f;
}
}
AmplitudeSum -= AmplitudeBuffer [AmplitudeIndex];
AmplitudeBuffer [AmplitudeIndex] = amplitude;
AmplitudeSum += amplitude;
AmplitudeIndex++;
if (AmplitudeIndex >= AMPLITUDE_BUFFER_SIZE) AmplitudeIndex = 0;
}
}