Update TF2_IgnitePlayer to support setting duration of fire (#1038)

Related to #713

extensions/tf2/natives.cpp

@@ -92,7 +92,7 @@ cell_t TF2_MakeBleed(IPluginContext *pContext, const cell_t *params)
 	return 1;
 }
 
-// native TF2_Burn(client, target)
+// native TF2_Burn(client, target, duration)
 cell_t TF2_Burn(IPluginContext *pContext, const cell_t *params)
 {
 	static ICallWrapper *pWrapper = NULL;
@@ -126,10 +126,17 @@ cell_t TF2_Burn(IPluginContext *pContext, const cell_t *params)
 		return pContext->ThrowNativeError("Client index %d is not valid", params[2]);
 	}
 
+	float fDuration = 10.0;
+	// Compatibility fix for the newly-added duration
+	if (params[0] >= 3)
+	{
+		fDuration = sp_ctof(params[3]);
+	}
+
 	void *obj = (void *)((uint8_t *)pEntity + playerSharedOffset->actual_offset);
 	ArgBuffer<void*, CBaseEntity*, CBaseEntity*, 
 										float> //duration
-										vstk(obj, pTarget, nullptr, 10.0f);
+										vstk(obj, pTarget, nullptr, fDuration);
 
 	pWrapper->Execute(vstk, nullptr);
 	return 1;

plugins/include/tf2.inc

@@ -245,13 +245,16 @@ enum TFObjectMode
 };
 
 /**
- * Sets a client on fire for 10 seconds.
+ * Sets a client on fire.
+ *
+ * @note Fire duration is capped to 10 seconds.
  *
  * @param client        Player's index.
  * @param attacker      Attacker's index.
+ * @param duration      Duration of fire (in seconds).
  * @error               Invalid client index, client not in game, or no mod support.
  */
-native void TF2_IgnitePlayer(int client, int attacker);
+native void TF2_IgnitePlayer(int client, int attacker, float duration=10.0);
 
 /**
  * Respawns a client