DaylightSensorHandler.h

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#pragma once
 
#include "World.h"
 
 
 
 
 
namespace DaylightSensorHandler
{
    static PowerLevel GetPowerLevel(const cChunk & a_Chunk, const Vector3i a_Position)
    {
        if (a_Chunk.GetBlock(a_Position) == E_BLOCK_INVERTED_DAYLIGHT_SENSOR)
        {
            // Inverted sensor directly returns darkened skylight, no fancy tricks:
            return 15 - a_Chunk.GetSkyLightAltered(a_Position);
        }
 
        // The [0, 1) proportion of the current day that has elapsed.
        const auto ProportionOfDay = a_Chunk.GetWorld()->GetTimeOfDay().count() * (static_cast<float>(M_PI) / 12000.f);
 
        // The curved value of darkened skylight, with outputs somewhat similar to Vanilla.
        const auto RawOutput = a_Chunk.GetSkyLightAltered(a_Position) * (0.6f * std::sin(ProportionOfDay) + 0.5f);
 
        // Saturate the amplified sine curve at 0 and 15:
        return static_cast<PowerLevel>(std::clamp(RawOutput, 0.f, 15.f));
    }
 
    static PowerLevel GetPowerDeliveredToPosition(const cChunk & a_Chunk, Vector3i a_Position, BLOCKTYPE a_BlockType, Vector3i a_QueryPosition, BLOCKTYPE a_QueryBlockType, bool IsLinked)
    {
        UNUSED(a_Chunk);
        UNUSED(a_BlockType);
        UNUSED(a_QueryPosition);
 
        // Daylight sensors only output to immediately surrounding blocks:
        return IsLinked ? 0 : a_Chunk.GetMeta(a_Position);
    }
 
    static void Update(cChunk & a_Chunk, cChunk & CurrentlyTicking, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta, const PowerLevel Power)
    {
        // LOGD("Evaluating Darryl the daylight sensor (%d %d %d)", a_Position.x, a_Position.y, a_Position.z);
 
        // What the sensor should output according to the time-power function.
        const auto PowerLevel = GetPowerLevel(a_Chunk, a_Position);
 
        // Only update the output if the power level has changed:
        if (PowerLevel != a_Meta)
        {
            a_Chunk.SetMeta(a_Position, PowerLevel);
            UpdateAdjustedRelatives(a_Chunk, CurrentlyTicking, a_Position, RelativeAdjacents);
        }
    }
 
    static void ForValidSourcePositions(const cChunk & a_Chunk, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta, ForEachSourceCallback & Callback)
    {
        UNUSED(a_Chunk);
        UNUSED(a_Position);
        UNUSED(a_BlockType);
        UNUSED(a_Meta);
        UNUSED(Callback);
    }
};