Adam
126 lines
3.2 KiB
C++
126 lines
3.2 KiB
C++
#include "SoundSystem.h"
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#include "World.h"
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//#include <fstream>
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Systems::SoundSystem::SoundSystem(World* world)
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: System(world)
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{
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//initialize OpenAL
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ALCdevice* Device = alcOpenDevice(nullptr);
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if(Device)
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{
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context = alcCreateContext(Device, nullptr);
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alcMakeContextCurrent(context);
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}
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}
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void Systems::SoundSystem::Update(double dt)
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{
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}
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void Systems::SoundSystem::UpdateEntity(double dt, EntityID entity, EntityID parent)
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{
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auto soundEmitter = m_World->GetComponent<Components::SoundEmitter>(entity, "SoundEmitter");
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if(soundEmitter == nullptr)
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return;
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}
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void Systems::SoundSystem::PlaySound(std::shared_ptr<Components::SoundEmitter> emitter, std::string fileName)
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{
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//alSourcePlay(source);
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}
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void Systems::SoundSystem::LoadFile(const char* fileName)
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{
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FILE *fp = NULL;
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fp = fopen(strcat("Sounds/", fileName), "rb");
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//CHECK FOR VALID WAVE-FILE
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fread(type, sizeof(char), 4, fp);
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if(type[0]!='R' || type[1]!='I' || type[2]!='F' || type[3]!='F')
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return LOG_ERROR("ERROR: No RIFF in WAVE-file");
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fread(&size, sizeof(DWORD), 1, fp);
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fread(type, sizeof(char), 4, fp);
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if(type[0]!='W' || type[1]!='A' || type[2]!='V' || type[3]!='E')
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return LOG_ERROR("ERROR: Not WAVE-file");
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fread(type, sizeof(char), 4, fp);
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if(type[0]!='f' || type[1]!='m' || type[2]!='t' || type[3]!=' ')
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return LOG_ERROR("ERROR: No fmt in WAVE-file");
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//READ THE DATA FROM WAVE-FILE
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fread(&chunkSize, sizeof(DWORD), 1, fp);
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fread(&formatType, sizeof(short), 1, fp);
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fread(&channels, sizeof(short), 1, fp);
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fread(&sampleRate, sizeof(DWORD), 1, fp);
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fread(&avgBytesPerSec, sizeof(DWORD), 1, fp);
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fread(&bytesPerSample, sizeof(short), 1, fp);
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fread(&bitsPerSample, sizeof(short), 1, fp);
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fread(type, sizeof(char), 4, fp);
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if(type[0]!='d' || type[1]!='a' || type[2]!='t' || type[3]!='a')
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return LOG_ERROR("ERROR: WAVE-file Missing data");
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fread(&dataSize, sizeof(DWORD), 1, fp);
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buf = new unsigned char[dataSize];
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fread(buf, sizeof(BYTE), dataSize, fp);
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fclose(fp);
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}
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void Systems::SoundSystem::CreateSource(int ID, float pos[3], ALboolean looping)
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{
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ALuint source;
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ALuint buffer;
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ALuint frequency = sampleRate;
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ALuint format = 0;
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alGenBuffers(1, &buffer);
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alGenBuffers(1, &source);
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if(bitsPerSample == 8)
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{
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if(channels == 1)
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format = AL_FORMAT_MONO8;
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else if(channels == 2)
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format = AL_FORMAT_STEREO8;
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}
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if(bitsPerSample == 16)
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{
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if (channels == 1)
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format = AL_FORMAT_MONO16;
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else if (channels == 2)
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format = AL_FORMAT_STEREO16;
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}
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alBufferData(buffer, format, buf, dataSize, frequency);
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ALfloat SourcePos[] = { pos[0], pos[1], pos[2] };
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ALfloat SourceVel[] = { 0.0, 0.0, 0.0 };
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ALfloat ListenerPos[] = { 0.0, 0.0, 0.0 }; // Playerpos? Camerapos?
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ALfloat ListenerVel[] = { 0.0, 0.0, 0.0 };
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ALfloat ListenerOri[] = { 0.0, 0.0, -1.0 , 0.0, 1.0, 0.0 }; //two vectors defining where the listener points, and an "up" vector
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//Listener
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alListenerfv(AL_POSITION, ListenerPos);
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alListenerfv(AL_VELOCITY, ListenerVel);
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alListenerfv(AL_ORIENTATION, ListenerOri);
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//Source
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alSourcei(source, AL_BUFFER, buffer);
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alSourcef(source, AL_PITCH, 1.0f);
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alSourcef(source, AL_GAIN, 1.0f); //Volume
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alSourcefv(source, AL_POSITION, SourcePos);
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alSourcefv(source, AL_VELOCITY, SourceVel);
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alSourcei(source, AL_LOOPING, looping);
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} |