add channel handler events

4 files changed, 85 insertions, 0 deletions

diff --git a/doc/script_commands.txt b/doc/script_commands.txt
index 5ba0aaa2e..0ba350ad1 100644
--- a/doc/script_commands.txt
+++ b/doc/script_commands.txt
@@ -7450,6 +7450,27 @@ no RID is attached), false will be returned. In case of success, true is
 returned.
 
 ---------------------------------------
+
+*addchannelhandler("<#channel>", "<NPC::OnEvent>")
+
+This command will trigger the specified event every time a player
+talks in the specified channel, with said player as attached rid.
+It assigns the message to @channelmes$
+
+OnChannelMessage:
+	channelmes("#chan", "Echo: " + @channelmes$);
+	end;
+
+OnInit:
+	addchannelhandler("#chan", "NPC::OnChannelMessage");
+
+---------------------------------------
+
+*removechannelhandler("<#channel>", "<NPC::OnEvent>")
+
+Removes a channel handler added by addchannelhandler()
+
+---------------------------------------
 *rand(<number>{, <number>})
 
 This function returns a number ...
diff --git a/src/map/channel.c b/src/map/channel.c
index ee8242b23..9ec415883 100644
--- a/src/map/channel.c
+++ b/src/map/channel.c
@@ -26,6 +26,7 @@
 #include "map/instance.h"
 #include "map/irc-bot.h"
 #include "map/map.h"
+#include "map/npc.h"
 #include "map/pc.h"
 #include "common/cbasetypes.h"
 #include "common/conf.h"
@@ -278,12 +279,21 @@ void channel_send(struct channel_data *chan, struct map_session_data *sd, const
 		clif->messagecolor_self(sd->fd, COLOR_RED, msg_sd(sd,1455));
 		return;
 	} else if (sd) {
+		int i;
+
 		safesnprintf(message, 150, "[ #%s ] %s : %s", chan->name, sd->status.name, msg);
 		clif->channel_msg(chan,sd,message);
 		if (chan->type == HCS_TYPE_IRC)
 			ircbot->relay(sd->status.name,msg);
 		if (chan->msg_delay != 0)
 			sd->hchsysch_tick = timer->gettick();
+
+		for (i = 0; i < MAX_EVENTQUEUE; i++) {
+			if (chan->handlers[i][0] != '\0') {
+				pc->setregstr(sd, script->add_str("@channelmes$"), msg);
+				npc->event(sd, chan->handlers[i], 0);
+			}
+		}
 	} else {
 		safesnprintf(message, 150, "[ #%s ] %s", chan->name, msg);
 		clif->channel_msg2(chan, message);
diff --git a/src/map/channel.h b/src/map/channel.h
index e8696fd90..4ac3c6037 100644
--- a/src/map/channel.h
+++ b/src/map/channel.h
@@ -23,6 +23,8 @@
 #include "common/hercules.h"
 #include "common/mmo.h"
 
+#include "map/map.h" // EVENT_NAME_LENGTH, MAX_EVENTQUEUE
+
 /**
  * Declarations
  **/
@@ -85,6 +87,7 @@ struct channel_data {
 	unsigned char color;
 	struct DBMap *users;
 	struct DBMap *banned;
+	char handlers[MAX_EVENTQUEUE][EVENT_NAME_LENGTH];
 	unsigned int options;
 	unsigned int owner;
 	enum channel_types type;
diff --git a/src/map/script.c b/src/map/script.c
index b0922e3f8..599285e1e 100644
--- a/src/map/script.c
+++ b/src/map/script.c
@@ -22925,6 +22925,55 @@ BUILDIN(channelmes)
 	return true;
 }
 
+BUILDIN(addchannelhandler)
+{
+	int i;
+	const char *channelname = script_getstr(st, 2);
+	const char *eventname = script_getstr(st, 3);
+	struct channel_data *chan = channel->search(channelname, NULL);
+
+	if (!chan) {
+		script_pushint(st, 0);
+		return true;
+	}
+
+	ARR_FIND(0, MAX_EVENTQUEUE, i, chan->handlers[i][0] == '\0');
+
+	if (i < MAX_EVENTQUEUE) {
+		safestrncpy(chan->handlers[i], eventname, EVENT_NAME_LENGTH); //Event enqueued.
+		script_pushint(st, 1);
+		return true;
+	}
+
+	ShowWarning("script:addchannelhandler: too many handlers for channel %s.\n", channelname);
+	script_pushint(st, 0);
+	return true;
+}
+
+BUILDIN(removechannelhandler)
+{
+	int i;
+	const char *channelname = script_getstr(st, 2);
+	const char *eventname = script_getstr(st, 3);
+	struct channel_data *chan = channel->search(channelname, NULL);
+
+	if (!chan) {
+		script_pushint(st, 0);
+		return true;
+	}
+
+	for (i = 0; i < MAX_EVENTQUEUE; i++) {
+		if (strcmp(chan->handlers[i], eventname) == 0) {
+			chan->handlers[i][0] = '\0';
+			script_pushint(st, 1);
+			return true;
+		}
+	}
+
+	script_pushint(st, 0);
+	return true;
+}
+
 /** By Cydh
 Display script message
 showscript "<message>"{,<GID>};
@@ -23721,6 +23770,8 @@ void script_parse_builtin(void) {
 		BUILDIN_DEF(navigateto, "s??????"),
 
 		BUILDIN_DEF(channelmes, "ss"),
+		BUILDIN_DEF(addchannelhandler, "ss"),
+		BUILDIN_DEF(removechannelhandler, "ss"),
 		BUILDIN_DEF(showscript, "s?"),
 		BUILDIN_DEF(mergeitem,""),
 		BUILDIN_DEF(_,"s"),