/// <summary>
/// Applied to LightGridEmitter to update lit cells upon a lighting request.
/// </summary>
private static bool UpdateLitCells_Prefix(LightGridEmitter __instance,
List <int> ___litCells, LightGridEmitter.State ___state)
{
var lm = PLightManager.Instance;
return(lm == null || !lm.UpdateLitCells(__instance, ___state, ___litCells));
}
/// <summary>
/// Applied to LightGridEmitter to compute the lux values properly.
/// </summary>
private static bool ComputeLux_Prefix(LightGridEmitter __instance, int cell,
LightGridEmitter.State ___state, ref int __result)
{
var lm = PLightManager.Instance;
return(lm == null || !lm.GetBrightness(__instance, cell, ___state, out __result));
}
/// <summary>
/// Updates the lit cells list.
/// </summary>
/// <param name="source">The source of the light.</param>
/// <param name="state">The light emitter state.</param>
/// <param name="litCells">The location where lit cells will be placed.</param>
/// <returns>true if the lighting was handled, or false otherwise.</returns>
internal bool UpdateLitCells(LightGridEmitter source, LightGridEmitter.State state,
IList <int> litCells)
{
bool handled = false;
int index;
if (source == null)
{
throw new ArgumentNullException("source");
}
if ((index = state.shape - LightShape.Cone - 1) >= 0 && index < shapes.Count &&
litCells != null)
{
var ps = shapes[index];
CacheEntry cacheEntry;
lock (brightCache) {
// Look up in cache, in a thread safe way
if (!brightCache.TryGetValue(source, out cacheEntry))
{
cacheEntry = new CacheEntry(CallingObject, state.intensity);
brightCache.Add(source, cacheEntry);
}
}
var brightness = cacheEntry.Intensity;
// Proper owner found
brightness.Clear();
ps.FillLight(cacheEntry.Owner, state.origin, (int)state.radius, brightness);
foreach (var point in cacheEntry.Intensity)
{
litCells.Add(point.Key);
}
handled = true;
}
return(handled);
}
/// <summary>
/// Updates the lit cells list.
/// </summary>
/// <param name="source">The source of the light.</param>
/// <param name="state">The light emitter state.</param>
/// <param name="litCells">The location where lit cells will be placed.</param>
/// <returns>true if the lighting was handled, or false otherwise.</returns>
internal bool UpdateLitCells(LightGridEmitter source, LightGridEmitter.State state,
IList <int> litCells)
{
bool handled = false;
int index;
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if ((index = state.shape - LightShape.Cone - 1) >= 0 && index < shapes.Count &&
litCells != null)
{
var ps = shapes[index];
var cacheEntry = brightCache.GetOrAdd(source, (_) => new CacheEntry(
CallingObject, state.intensity));
var brightness = cacheEntry.Intensity;
// Proper owner found
brightness.Clear();
ps.FillLight(new LightingArgs(cacheEntry.Owner, state.origin, (int)state.
radius, brightness));
foreach (var point in cacheEntry.Intensity)
{
litCells.Add(point.Key);
}
handled = true;
}
return(handled);
}
/// <summary>
/// Ends a call to lighting update initiated by CreateLight.
/// </summary>
/// <param name="source">The source of the light.</param>
internal void DestroyLight(LightGridEmitter source)
{
if (source != null)
{
brightCache.TryRemove(source, out _);
}
}
/// <summary>
/// Ends a call to lighting update initiated by CreateLight.
/// </summary>
/// <param name="source">The source of the light.</param>
internal void DestroyLight(LightGridEmitter source)
{
if (source != null)
{
lock (brightCache) {
brightCache.Remove(source);
}
}
}
/// <summary>
/// Gets the brightness at a given cell for the specified light source.
/// </summary>
/// <param name="source">The source of the light.</param>
/// <param name="location">The location to check.</param>
/// <param name="state">The lighting state.</param>
/// <param name="result">The brightness there.</param>
/// <returns>true if that brightness is valid, or false otherwise.</returns>
internal bool GetBrightness(LightGridEmitter source, int location,
LightGridEmitter.State state, out int result)
{
bool valid;
CacheEntry cacheEntry;
var shape = state.shape;
if (shape != LightShape.Cone && shape != LightShape.Circle)
{
lock (brightCache) {
// Shared access to the cache
valid = brightCache.TryGetValue(source, out cacheEntry);
}
if (valid)
{
valid = cacheEntry.Intensity.TryGetValue(location, out float ratio);
if (valid)
{
result = Mathf.RoundToInt(cacheEntry.BaseLux * ratio);
}
else
{
#if DEBUG
PUtil.LogDebug("GetBrightness for invalid cell at {0:D}".F(location));
#endif
result = 0;
}
}
else
{
#if DEBUG
PUtil.LogDebug("GetBrightness for invalid emitter at {0:D}".F(location));
#endif
result = 0;
valid = false;
}
}
else if (ForceSmoothLight)
{
// Use smooth light even for vanilla Cone and Circle
result = Mathf.RoundToInt(state.intensity * PLightShape.GetSmoothFalloff(
state.falloffRate, location, state.origin));
valid = true;
}
else
{
// Stock
result = 0;
valid = false;
}
return(valid);
}
/// <summary>
/// Applied to LightGridEmitter to clean up the trash when it is removed from grid.
/// </summary>
private static void RemoveFromGrid_Postfix(LightGridEmitter __instance)
{
PLightManager.Instance?.DestroyLight(__instance);
}
public Light2D()
{
emitter = new LightGridManager.LightGridEmitter();
Range = 5f;
Lux = 1000;
}
public ModifyBrightnessTask(LightGridManager.LightGridEmitter emitter)
{
this.emitter = emitter;
emitter.RemoveFromGrid();
}