Trigger a partical effect with hotkey?

NotOfTheWorld

I've seen this done with trainers, is it possible to activate one with a hotkey?

Jitnaught

using GTA;
using GTA.Math;
using GTA.Native;
using System;
using System.Windows.Forms;

class MyMod : Script
{
	string assetName = "put_asset_name_here", effectName = "put_effect_name_here";

	int ptfxHandle = -1;

	public MyMod()
	{
		KeyDown += MyMod_KeyDown;
	}

	public void MyMod_KeyDown(object sender, KeyEventArgs e)
	{
		if (e.KeyCode == Keys.K)
		{
			//stop ptfx if still exists

			if (Function.Call<bool>(Hash.DOES_PARTICLE_FX_LOOPED_EXIST, ptfxHandle))
			{
				Function.Call(Hash.REMOVE_PARTICLE_FX, ptfxHandle, false);
			}

			ptfxHandle = -1;

			//request ptfx
			DateTime endtime = DateTime.UtcNow + new TimeSpan(0, 0, 0, 0, 1000); //1000 milliseconds from now

			while (DateTime.UtcNow < endtime && !Function.Call<bool>(Hash.HAS_NAMED_PTFX_ASSET_LOADED, assetName))
			{
				Function.Call(Hash.REQUEST_NAMED_PTFX_ASSET, assetName);
				Yield();
			}

			if (Function.Call<bool>(Hash.HAS_NAMED_PTFX_ASSET_LOADED, assetName))
			{
				Function.Call(Hash._USE_PARTICLE_FX_ASSET_NEXT_CALL, assetName);

				//edit these to your liking
				Vector3 location = Game.Player.Character.Position; 
				Vector3 rotation = Vector3.Zero;
				float scale = 8f;

				int ptfxHandle = Function.Call<int>(Hash.START_PARTICLE_FX_LOOPED_AT_COORD, effectName, location.X, location.Y, location.Z, rotation.X, rotation.Y, rotation.Z, scale, false, false, false, false);

				if (!Function.Call<bool>(Hash.DOES_PARTICLE_FX_LOOPED_EXIST, Handle)) ptfxHandle = -1;
			}
		}
	}
}

There is also this class from SHVDN3 that could be helpful: https://github.com/crosire/scripthookvdotnet/blob/d695fd74cef2286c72b57c640aa4640ad814df5b/source/scripting/World/ParticleEffects.cs