e4233cc23d
Without period, y=k*t+b and y=base+drift_rate*t grow infinitely, which is unrealistic for industrial simulation. period_ms makes t wrap modulo the period, producing sawtooth patterns that simulate per-cycle behavior (e.g. tension build-up per coil, sensor drift per shift).
17 lines
493 B
C
17 lines
493 B
C
#pragma once
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#include <TestProject/RNG/model/IModel.h>
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#include <nlohmann/json.hpp>
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using json = nlohmann::json;
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struct DriftModel : IModel {
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float base, drift_rate;
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size_t period_ticks;
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DriftModel(const json& params, float defaultVal)
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: base(defaultVal), drift_rate(params.value("drift_rate", 0.0f))
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, period_ticks(params.value("period_ms", 0) / 20) {}
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float evaluate(size_t t) override {
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if (period_ticks > 0) t %= period_ticks;
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return base + drift_rate * t;
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}
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};
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