SoundDef: implement pointparticle key, so that particle calls can happen within sound defs (lowering networking footprint further)

src/shared/sound.h

@@ -61,6 +61,7 @@ typedef struct
 	string samples; /**< Separated list of samples. */
 	string name; /**< Name of the soundDef. */
 	string distshader; /**< soundDef to play where this soundDef is not audible. */
+	float pointparticle;
 } snd_t;
 
 /** A sound sample of a sentences.txt word sequence. */

src/shared/sound.qc

@@ -172,6 +172,9 @@ Sound_ParseField(int i, int a)
 	case "distshader":
 		g_sounds[i].distshader = argv(1);
 		break;
+	case "pointparticle":
+		g_sounds[i].pointparticle = particleeffectnum(argv(1));
+		break;
 	case "alerts":
 		dprint("\tSound set to alert enemy AI\n");
 		g_sounds[i].flags |= SNDFL_ALERTS;
@@ -550,6 +553,14 @@ Sound_Play(entity target, int chan, string shader)
 	}
 #endif
 
+#ifdef CLIENT
+	if (g_sounds[sample].pointparticle)
+		pointparticles(g_sounds[sample].pointparticle, target.origin, [0,0,0], 1);
+#else
+	if (g_sounds[sample].pointparticle)
+		print(sprintf("SoundDef %S is attempting to spawn a particle on the server side.\n", shader));
+#endif
+
 	sound(
 		target,
 		chan,