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WIP: Dynamic weather #2

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Lihis wants to merge 3 commits into from
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WIP: Dynamic weather #2

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f10a5a8
Fix `Error: assigning to 'AVCodec *' from 'const AVCodec *' discards …
Dygear Apr 20, 2024
e20356b
SoundSource.cpp: return AVERROR_EOF when buffer is empty
Lihis Dec 1, 2023
1f53a93
Initial dynamic weather support
Lihis May 9, 2018
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2 changes: 1 addition & 1 deletion rwengine/src/audio/SoundSource.cpp
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Expand Up @@ -55,7 +55,7 @@ int read_packet(void* opaque, uint8_t* buf, int buf_size) {
memcpy(buf, input->ptr, buf_size);
input->ptr += buf_size;
input->size -= buf_size;
return buf_size;
return buf_size <= 0 ? AVERROR_EOF : buf_size;
}
} // namespace

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2 changes: 1 addition & 1 deletion rwengine/src/audio/SoundSource.hpp
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Expand Up @@ -90,7 +90,7 @@ class SoundSource {
AVFrame* frame = nullptr;
AVFormatContext* formatContext = nullptr;
AVStream* audioStream = nullptr;
AVCodec* codec = nullptr;
const AVCodec* codec = nullptr;
SwrContext* swr = nullptr;
AVCodecContext* codecContext = nullptr;
AVPacket readingPacket;
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8 changes: 8 additions & 0 deletions rwengine/src/data/Weather.hpp
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Expand Up @@ -40,6 +40,14 @@ class Weather {
float a, float tod);

std::vector<Entry> entries;

// Taken from: https://www.gtamodding.com/wiki/Time_cycle#Weather_lists
// TODO: This weather list applies only for GTA III
const uint16_t WeatherList[64] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 2, 1, 0,
0, 0, 1, 3, 3, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2,
2, 1, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 0, 0, 2, 1
};

@JayFoxRox JayFoxRox May 9, 2018

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Please document wether this comes from the game files or wether it's just typed by hand by observing what the game does.

@Lihis Lihis May 10, 2018

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Documented 13c4e76

};

#endif
2 changes: 1 addition & 1 deletion rwengine/src/engine/GameState.hpp
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Expand Up @@ -64,7 +64,7 @@ struct BasicState {
uint8_t _align3[2]{0};
uint16_t nextWeather{0};
uint8_t _align4[2]{0};
uint16_t forcedWeather{0};
uint16_t forcedWeather{0xFFFF};
uint8_t _align5[2]{0};
float weatherInterpolation{1.f};
uint8_t dateTime[24]{0}; // Unused
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3 changes: 1 addition & 2 deletions rwengine/src/script/modules/GTA3ModuleImpl.inl
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Expand Up @@ -4870,8 +4870,7 @@ void opcode_01b6(const ScriptArguments& args, const ScriptWeather weatherID) {
opcode 01b7
*/
void opcode_01b7(const ScriptArguments& args) {
RW_UNUSED(args);
args.getState()->basic.forcedWeather = -1;
args.getState()->basic.forcedWeather = UINT16_MAX;
}

/**
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17 changes: 17 additions & 0 deletions rwgame/RWGame.cpp
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Expand Up @@ -533,6 +533,7 @@ void RWGame::tick(float dt) {
static float clockAccumulator = 0.f;
static float scriptTimerAccumulator = 0.f;
static ScriptInt beepTime = std::numeric_limits<ScriptInt>::max();
static uint8_t prevGameHour = state.basic.gameHour;
if (currState->shouldWorldUpdate()) {
world->chase.update(dt);

Expand All @@ -554,6 +555,22 @@ void RWGame::tick(float dt) {
clockAccumulator -= 1.f;
}

if (prevGameHour != state.basic.gameHour) {
prevGameHour = state.basic.gameHour;
state.basic.lastWeather = state.basic.nextWeather;

// TODO: VC and SA has more than 4 weather conditions
if (state.basic.forcedWeather > 3) {
if (state.basic.weatherType < 63) {
++state.basic.weatherType;
} else {
state.basic.weatherType = 0;
}
state.basic.nextWeather = data.weather.WeatherList[state.basic.weatherType];
}
}
state.basic.weatherInterpolation = state.basic.gameMinute / 60.f;

constexpr float timerClockRate = 1.f / 30.f;

if (state.scriptTimerVariable && !state.scriptTimerPaused) {
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