NUCLEAR TNT — vanilla-compatible resource pack for Minecraft Java 1.21.11
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INSTALL
1. Do NOT unzip. Drop "NuclearTNT.zip" straight into your resourcepacks folder:
     Windows: %appdata%\.minecraft\resourcepacks
     macOS:   ~/Library/Application Support/minecraft/resourcepacks
     Linux:   ~/.minecraft/resourcepacks
2. Launch Minecraft -> Options -> Resource Packs -> move "Nuclear TNT" to Active.
3. Done. TNT mechanics (fuse time, blast radius, drops, redstone) are untouched —
   only the look changes.

WHAT'S CHANGED
- TNT block: dark military-green body, black/yellow hazard stripes on the sides,
  a glowing yellow radiation trefoil on the top and sides. Shape/size/hitbox are
  100% vanilla (only the textures were swapped, no model edits).
- Explosion look: the flash/shockwave and smoke-puff particles used by TNT
  (and by every other vanilla explosion) are now neon/radioactive green, with
  a jagged "spark ray" burst pattern and green radioactive smoke puffs that
  fade out over their normal lifetime.

HONEST LIMITATIONS (why this can't be 100% "cinematic nuke" with resource-pack-only)
A resource pack can only replace TEXTURES. It cannot:
  - Spawn brand-new particle types, add flying ember/spark ENTITIES, or change
    how many particles/what velocity an explosion spawns — that logic is
    hardcoded in the game's Java client and is only changeable with a mod
    (e.g. a Fabric/Forge client mod) or a shader-based trick.
  - Make textures truly "glow" with bloom lighting — vanilla has no emissive
    texture support without a mod like OptiFine or a custom core shader.
  - Restyle explosions to be TNT-only. The explosion/smoke particle textures
    are shared by ALL vanilla explosions (creepers, ghast fireballs, wither
    skulls, beds, respawn anchors, end crystals) — they will all turn green too.
  - Change the actual light/glow color TNT emits, TNT's real explosion power,
    or fuse timing — those are gameplay values, not textures, and editing
    them would require a datapack (allowed by vanilla, but changes mechanics,
    which was explicitly asked to stay unchanged here).

If you'd like a version with actual flying ember particles, real bloom glow,
and effects limited to TNT only, that needs a small Fabric/Forge client mod
(happy to sketch out what that would look like) — this zip is the best
possible 100% vanilla, mechanics-unchanged version.
