mirror of
https://github.com/MaSzyna-EU07/maszyna.git
synced 2026-03-22 15:05:03 +01:00
94 lines
3.2 KiB
C++
94 lines
3.2 KiB
C++
/*
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This Source Code Form is subject to the
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terms of the Mozilla Public License, v.
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2.0. If a copy of the MPL was not
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distributed with this file, You can
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obtain one at
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http://mozilla.org/MPL/2.0/.
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*/
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/*
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MaSzyna EU07 locomotive simulator
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Copyright (C) 2001-2004 Marcin Wozniak and others
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*/
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#include "stdafx.h"
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#include "lightarray.h"
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#include "dynobj.h"
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#include "driver.h"
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void
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light_array::insert( TDynamicObject const *Owner ) {
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// we're only storing lights for locos, which have two sets of lights, front and rear
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// for a more generic role this function would have to be tweaked to add vehicle type-specific light combinations
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data.emplace_back( Owner, 0 );
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data.emplace_back( Owner, 1 );
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}
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void
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light_array::remove( TDynamicObject const *Owner ) {
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data.erase(
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std::remove_if(
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data.begin(),
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data.end(),
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[=]( light_record const &light ){ return light.owner == Owner; } ),
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data.end() );
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}
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// updates records in the collection
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void
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light_array::update() {
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for( auto &light : data ) {
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// update light parameters to match current data of the owner
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if( light.index == 0 ) {
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// front light set
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light.position = light.owner->GetPosition() + ( light.owner->VectorFront() * light.owner->GetLength() * 0.45 );
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light.direction = light.owner->VectorFront();
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}
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else {
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// rear light set
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light.position = light.owner->GetPosition() - ( light.owner->VectorFront() * light.owner->GetLength() * 0.45 );
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light.direction = light.owner->VectorFront();
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light.direction.x = -light.direction.x;
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light.direction.z = -light.direction.z;
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}
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// determine intensity of this light set
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if( true == light.owner->MoverParameters->Battery ) {
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// with battery on, the intensity depends on the state of activated switches
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auto const &lightbits = light.owner->iLights[ light.index ];
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light.count = 0 +
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( ( lightbits & 1 ) ? 1 : 0 ) +
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( ( lightbits & 4 ) ? 1 : 0 ) +
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( ( lightbits & 16 ) ? 1 : 0 );
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if( light.count > 0 ) {
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// TODO: intensity can be affected further by dim switch or other factors
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light.intensity = std::max( 0.0f, std::log( (float)light.count + 1.0f ) );
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// light.intensity = std::max( 0.0f, std::log( (float)light.count + 3.0f ) );
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}
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else {
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light.intensity = 0.0f;
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}
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// crude catch for unmanned modules which share the light state with the controlled unit.
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// why don't they get their own light bits btw ._.
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// TODO, TBD: have separate light bits for each vehicle, so this override isn't necessary
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if( ( light.owner->Controller == AIdriver )
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&& ( light.owner->Mechanik == nullptr ) ) {
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light.intensity = 0.0f;
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light.count = 0;
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}
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}
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else {
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// with battery off the lights are off
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light.intensity = 0.0f;
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light.count = 0;
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}
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}
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}
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