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| 1 | +// SPDX-FileCopyrightText: 2025 Terkala <appleorange64@gmail.com> |
| 2 | +// |
| 3 | +// SPDX-License-Identifier: AGPL-3.0-or-later OR MIT |
| 4 | + |
| 5 | +using System; |
| 6 | +using System.Collections.Generic; |
| 7 | +using System.Diagnostics.CodeAnalysis; |
| 8 | +using Content.Client._Funkystation.Effects.ManualPlayback.Components; |
| 9 | +using Content.Client._Funkystation.Effects.ManualPlayback.Systems; |
| 10 | +using Content.Shared.BloodCult; |
| 11 | +using Content.Shared.Weapons.Ranged.Systems; |
| 12 | +using Robust.Client.GameObjects; |
| 13 | +using Robust.Client.Graphics; |
| 14 | +using Robust.Shared.GameObjects; |
| 15 | +using Robust.Shared.Graphics; |
| 16 | +using Robust.Shared.Graphics.RSI; |
| 17 | +using Robust.Shared.Map; |
| 18 | +using Robust.Shared.Maths; |
| 19 | +using Robust.Shared.Timing; |
| 20 | +using TimedDespawnComponent = Robust.Shared.Spawners.TimedDespawnComponent; |
| 21 | + |
| 22 | +namespace Content.Client._Funkystation.BloodCult.Systems; |
| 23 | + |
| 24 | +public sealed class BloodCultRuneEffectSystem : EntitySystem |
| 25 | +{ |
| 26 | + private readonly Dictionary<uint, EntityUid> _activeEffects = new(); |
| 27 | + |
| 28 | + [Dependency] private readonly IGameTiming _timing = default!; |
| 29 | + [Dependency] private readonly SpriteSystem _sprite = default!; |
| 30 | + |
| 31 | + private ManualPlaybackEffectSystem? _manualPlaybackSystem; |
| 32 | + |
| 33 | + private const string TearVeilEffectPrototype = "TearVeilRune_drawing"; |
| 34 | + |
| 35 | + public override void Initialize() |
| 36 | + { |
| 37 | + base.Initialize(); |
| 38 | + SubscribeNetworkEvent<RuneDrawingEffectEvent>(OnRuneEffectEvent); |
| 39 | + EntityManager.EntitySysManager.TryGetEntitySystem(out _manualPlaybackSystem); |
| 40 | + EntityManager.EntitySysManager.SystemLoaded += OnSystemLoaded; |
| 41 | + EntityManager.EntitySysManager.SystemUnloaded += OnSystemUnloaded; |
| 42 | + } |
| 43 | + |
| 44 | + public override void Shutdown() |
| 45 | + { |
| 46 | + base.Shutdown(); |
| 47 | + EntityManager.EntitySysManager.SystemLoaded -= OnSystemLoaded; |
| 48 | + EntityManager.EntitySysManager.SystemUnloaded -= OnSystemUnloaded; |
| 49 | + } |
| 50 | + |
| 51 | + private void OnSystemLoaded(object? sender, SystemChangedArgs args) |
| 52 | + { |
| 53 | + if (args.System is ManualPlaybackEffectSystem manual) |
| 54 | + _manualPlaybackSystem = manual; |
| 55 | + } |
| 56 | + |
| 57 | + private void OnSystemUnloaded(object? sender, SystemChangedArgs args) |
| 58 | + { |
| 59 | + if (args.System is ManualPlaybackEffectSystem) |
| 60 | + _manualPlaybackSystem = null; |
| 61 | + } |
| 62 | + |
| 63 | + private void OnRuneEffectEvent(RuneDrawingEffectEvent ev) |
| 64 | + { |
| 65 | + var coordinates = GetCoordinates(ev.Coordinates); |
| 66 | + |
| 67 | + switch (ev.Action) |
| 68 | + { |
| 69 | + case RuneEffectAction.Start: |
| 70 | + HandleStart(ev, coordinates); |
| 71 | + break; |
| 72 | + case RuneEffectAction.Stop: |
| 73 | + HandleStop(ev); |
| 74 | + break; |
| 75 | + } |
| 76 | + } |
| 77 | + |
| 78 | + private void HandleStart(RuneDrawingEffectEvent ev, EntityCoordinates coordinates) |
| 79 | + { |
| 80 | + if (string.IsNullOrEmpty(ev.Prototype)) |
| 81 | + return; |
| 82 | + |
| 83 | + if (_activeEffects.TryGetValue(ev.EffectId, out var existing) && !Deleted(existing)) |
| 84 | + QueueDel(existing); |
| 85 | + |
| 86 | + var effect = Spawn(ev.Prototype, coordinates); |
| 87 | + |
| 88 | + if (!TryComp<SpriteComponent>(effect, out var sprite)) |
| 89 | + { |
| 90 | + _activeEffects.Remove(ev.EffectId); |
| 91 | + return; |
| 92 | + } |
| 93 | + |
| 94 | + var spriteEntity = new Entity<SpriteComponent?>(effect, sprite); |
| 95 | + var manualEffect = EnsureComp<ManualPlaybackStateComponent>(effect); |
| 96 | + manualEffect.Duration = ev.Duration; |
| 97 | + manualEffect.StartTime = _timing.RealTime; |
| 98 | + ResetState(manualEffect); |
| 99 | + |
| 100 | + manualEffect.LayerKey = EffectLayers.Unshaded; |
| 101 | + manualEffect.RowsPerColumn = 4; |
| 102 | + manualEffect.ColumnsOverride = 0; |
| 103 | + manualEffect.Direction = RsiDirection.South; |
| 104 | + var isTearVeil = string.Equals(ev.Prototype, TearVeilEffectPrototype, StringComparison.Ordinal); |
| 105 | + |
| 106 | + manualEffect.ManualPlaybackEnabled = !isTearVeil; |
| 107 | + |
| 108 | + var useManual = manualEffect.ManualPlaybackEnabled |
| 109 | + && TryGetManualPlaybackSystem(out var manualSystem) |
| 110 | + && manualSystem.TryEnableManualPlayback(spriteEntity, manualEffect); |
| 111 | + |
| 112 | + if (!useManual) |
| 113 | + { |
| 114 | + var handledFallback = false; |
| 115 | + |
| 116 | + if (isTearVeil) |
| 117 | + handledFallback = TryEnableTearVeilFallback(spriteEntity, manualEffect); |
| 118 | + |
| 119 | + if (!handledFallback) |
| 120 | + { |
| 121 | + manualEffect.ActiveManualPlayback = false; |
| 122 | + manualEffect.Frames = Array.Empty<Texture>(); |
| 123 | + manualEffect.FrameDelays = Array.Empty<float>(); |
| 124 | + manualEffect.TotalDelay = 0f; |
| 125 | + |
| 126 | + if (_sprite.TryGetLayer(spriteEntity, manualEffect.LayerKey, out var layer, false)) |
| 127 | + { |
| 128 | + manualEffect.BaseColor = layer.Color; |
| 129 | + manualEffect.BaseShader = layer.ShaderPrototype; |
| 130 | + manualEffect.BaseUnshaded = layer.ShaderPrototype == SpriteSystem.UnshadedId; |
| 131 | + if (!_sprite.LayerMapTryGet(spriteEntity, manualEffect.LayerKey, out var layerIndex, false)) |
| 132 | + layerIndex = -1; |
| 133 | + manualEffect.LayerIndex = layerIndex; |
| 134 | + |
| 135 | + _sprite.LayerSetAutoAnimated(spriteEntity, manualEffect.LayerKey, true); |
| 136 | + _sprite.LayerSetAnimationTime(spriteEntity, manualEffect.LayerKey, 0f); |
| 137 | + if (manualEffect.LayerIndex >= 0) |
| 138 | + { |
| 139 | + if (manualEffect.BaseUnshaded) |
| 140 | + sprite.LayerSetShader(manualEffect.LayerIndex, (ShaderInstance?) null, SpriteSystem.UnshadedId.Id); |
| 141 | + else if (manualEffect.BaseShader is { } shader) |
| 142 | + sprite.LayerSetShader(manualEffect.LayerIndex, shader.Id); |
| 143 | + else |
| 144 | + sprite.LayerSetShader(manualEffect.LayerIndex, (ShaderInstance?) null, null); |
| 145 | + } |
| 146 | + _sprite.LayerSetColor(spriteEntity, manualEffect.LayerKey, manualEffect.BaseColor); |
| 147 | + } |
| 148 | + } |
| 149 | + } |
| 150 | + |
| 151 | + if (TryComp(effect, out TimedDespawnComponent? despawn)) |
| 152 | + { |
| 153 | + var manualDuration = manualEffect.ActiveManualPlayback ? Math.Max(manualEffect.TotalDelay, (float) ev.Duration.TotalSeconds) : (float) ev.Duration.TotalSeconds; |
| 154 | + var desiredLifetime = manualDuration + 0.5f; |
| 155 | + if (despawn.Lifetime < desiredLifetime) |
| 156 | + despawn.Lifetime = desiredLifetime; |
| 157 | + } |
| 158 | + |
| 159 | + _activeEffects[ev.EffectId] = effect; |
| 160 | + } |
| 161 | + |
| 162 | + private void HandleStop(RuneDrawingEffectEvent ev) |
| 163 | + { |
| 164 | + if (!_activeEffects.TryGetValue(ev.EffectId, out var effectUid)) |
| 165 | + return; |
| 166 | + |
| 167 | + _activeEffects.Remove(ev.EffectId); |
| 168 | + |
| 169 | + if (Deleted(effectUid)) |
| 170 | + return; |
| 171 | + |
| 172 | + if (!TryComp(effectUid, out ManualPlaybackStateComponent? manualEffect) || |
| 173 | + !TryComp<SpriteComponent>(effectUid, out var sprite)) |
| 174 | + { |
| 175 | + QueueDel(effectUid); |
| 176 | + return; |
| 177 | + } |
| 178 | + |
| 179 | + var spriteEntity = new Entity<SpriteComponent?>(effectUid, sprite); |
| 180 | + |
| 181 | + if (manualEffect.ActiveManualPlayback && TryGetManualPlaybackSystem(out var manualSystem)) |
| 182 | + { |
| 183 | + manualSystem.ApplyFinalFrame(spriteEntity, manualEffect); |
| 184 | + } |
| 185 | + |
| 186 | + QueueDel(effectUid); |
| 187 | + } |
| 188 | + |
| 189 | + private bool TryGetManualPlaybackSystem([NotNullWhen(true)] out ManualPlaybackEffectSystem? system) |
| 190 | + { |
| 191 | + if (_manualPlaybackSystem != null) |
| 192 | + { |
| 193 | + system = _manualPlaybackSystem; |
| 194 | + return true; |
| 195 | + } |
| 196 | + |
| 197 | + if (EntityManager.EntitySysManager.TryGetEntitySystem<ManualPlaybackEffectSystem>(out var resolved)) |
| 198 | + { |
| 199 | + _manualPlaybackSystem = resolved; |
| 200 | + system = resolved; |
| 201 | + return true; |
| 202 | + } |
| 203 | + |
| 204 | + system = null; |
| 205 | + return false; |
| 206 | + } |
| 207 | + |
| 208 | + private static void ResetState(ManualPlaybackStateComponent state) |
| 209 | + { |
| 210 | + state.ActiveManualPlayback = false; |
| 211 | + state.Frames = Array.Empty<Texture>(); |
| 212 | + state.FrameDelays = Array.Empty<float>(); |
| 213 | + state.TotalDelay = 0f; |
| 214 | + state.BaseShader = null; |
| 215 | + state.BaseUnshaded = false; |
| 216 | + state.BaseColor = Color.White; |
| 217 | + state.LayerIndex = -1; |
| 218 | + } |
| 219 | + |
| 220 | + private bool TryEnableTearVeilFallback(Entity<SpriteComponent?> spriteEntity, ManualPlaybackStateComponent manualEffect) |
| 221 | + { |
| 222 | + if (!_sprite.TryGetLayer(spriteEntity, manualEffect.LayerKey, out var layer, false)) |
| 223 | + return false; |
| 224 | + |
| 225 | + manualEffect.BaseShader = layer.ShaderPrototype; |
| 226 | + manualEffect.BaseUnshaded = layer.ShaderPrototype == SpriteSystem.UnshadedId; |
| 227 | + if (!_sprite.LayerMapTryGet(spriteEntity, manualEffect.LayerKey, out var layerIndex, false)) |
| 228 | + layerIndex = -1; |
| 229 | + manualEffect.LayerIndex = layerIndex; |
| 230 | + |
| 231 | + var state = layer.ActualState; |
| 232 | + if (state == null) |
| 233 | + return false; |
| 234 | + |
| 235 | + var frames = state.GetFrames(manualEffect.Direction); |
| 236 | + if (frames.Length == 0) |
| 237 | + return false; |
| 238 | + |
| 239 | + var delays = state.GetDelays(); |
| 240 | + var frameDelays = new float[frames.Length]; |
| 241 | + |
| 242 | + for (var i = 0; i < frames.Length; i++) |
| 243 | + frameDelays[i] = delays.Length > i ? delays[i] : 0.1f; |
| 244 | + |
| 245 | + manualEffect.Frames = frames; |
| 246 | + manualEffect.FrameDelays = frameDelays; |
| 247 | + |
| 248 | + var totalDelay = 0f; |
| 249 | + foreach (var delay in frameDelays) |
| 250 | + totalDelay += delay; |
| 251 | + |
| 252 | + if (totalDelay <= 0f) |
| 253 | + totalDelay = frameDelays.Length * 0.1f; |
| 254 | + |
| 255 | + manualEffect.TotalDelay = totalDelay; |
| 256 | + manualEffect.BaseColor = layer.Color; |
| 257 | + manualEffect.ActiveManualPlayback = true; |
| 258 | + |
| 259 | + _sprite.LayerSetAutoAnimated(spriteEntity, manualEffect.LayerKey, false); |
| 260 | + _sprite.LayerSetTexture(spriteEntity, manualEffect.LayerKey, frames[0]); |
| 261 | + _sprite.LayerSetColor(spriteEntity, manualEffect.LayerKey, manualEffect.BaseColor); |
| 262 | + |
| 263 | + if (manualEffect.LayerIndex >= 0) |
| 264 | + { |
| 265 | + if (manualEffect.BaseUnshaded) |
| 266 | + spriteEntity.Comp?.LayerSetShader(manualEffect.LayerIndex, (ShaderInstance?) null, SpriteSystem.UnshadedId.Id); |
| 267 | + else if (manualEffect.BaseShader is { } shader) |
| 268 | + spriteEntity.Comp?.LayerSetShader(manualEffect.LayerIndex, shader.Id); |
| 269 | + else |
| 270 | + spriteEntity.Comp?.LayerSetShader(manualEffect.LayerIndex, (ShaderInstance?) null, null); |
| 271 | + } |
| 272 | + |
| 273 | + return true; |
| 274 | + } |
| 275 | +} |
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