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// Copyright (c) Hercules Dev Team, licensed under GNU GPL.
// See the LICENSE file
// Sample Hercules Plugin
#include "common/hercules.h" /* Should always be the first Hercules file included! (if you don't make it first, you won't be able to use interfaces) */
#include "common/malloc.h"
#include "common/mmo.h"
#include "common/socket.h"
#include "common/strlib.h"
#include "map/clif.h"
#include "map/pc.h"
#include "map/script.h"
#include "common/HPMDataCheck.h" /* should always be the last Hercules file included! (if you don't make it last, it'll intentionally break compile time) */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
HPExport struct hplugin_info pinfo = {
"Sample", // Plugin name
SERVER_TYPE_CHAR|SERVER_TYPE_LOGIN|SERVER_TYPE_MAP,// Which server types this plugin works with?
"0.1", // Plugin version
HPM_VERSION, // HPM Version (don't change, macro is automatically updated)
};
ACMD(sample) {//@sample command - 5 params: const int fd, struct map_session_data* sd, const char* command, const char* message, struct AtCommandInfo *info
printf("I'm being run! message -> '%s' by %s\n",message,sd->status.name);
return true;
}
BUILDIN(sample) {//script command 'sample(num);' - 1 param: struct script_state* st
int arg = script_getnum(st,2);
ShowInfo("I'm being run! arg -> '%d'\n",arg);
return true;
}
CPCMD(sample) {//console command 'sample' - 1 param: char *line
ShowInfo("I'm being run! arg -> '%s'\n",line?line:"NONE");
}
struct sample_data_struct {
struct point lastMSGPosition;
unsigned int someNumber;
};
/* sample packet implementation */
/* cmd 0xf3 - it is a client-server existent id, for clif_parse_GlobalMessage */
/* in this sample we do nothing and simply redirect */
void sample_packet0f3(int fd) {
struct map_session_data *sd = sockt->session[fd]->session_data;
struct sample_data_struct *data;
if( !sd ) return;/* socket didn't fully log-in? this packet shouldn't do anything then! */
ShowInfo("sample_packet0f3: Hello World! received 0xf3 for '%s', redirecting!\n",sd->status.name);
/* sample usage of appending data to a socket_data (sockt->session[]) entry */
if( !(data = getFromSession(sockt->session[fd],0)) ) {
CREATE(data,struct sample_data_struct,1);
data->lastMSGPosition.map = sd->status.last_point.map;
data->lastMSGPosition.x = sd->status.last_point.x;
data->lastMSGPosition.y = sd->status.last_point.y;
data->someNumber = rand()%777;
ShowInfo("Created Appended sockt->session[] data, %d %d %d %d\n",data->lastMSGPosition.map,data->lastMSGPosition.x,data->lastMSGPosition.y,data->someNumber);
addToSession(sockt->session[fd],data,0,true);
} else {
ShowInfo("Existent Appended sockt->session[] data, %d %d %d %d\n",data->lastMSGPosition.map,data->lastMSGPosition.x,data->lastMSGPosition.y,data->someNumber);
if( rand()%4 == 2 ) {
ShowInfo("Removing Appended sockt->session[] data\n");
removeFromSession(sockt->session[fd],0);
}
}
/* sample usage of appending data to a map_session_data (sd) entry */
if( !(data = getFromMSD(sd,0)) ) {
CREATE(data,struct sample_data_struct,1);
data->lastMSGPosition.map = sd->status.last_point.map;
data->lastMSGPosition.x = sd->status.last_point.x;
data->lastMSGPosition.y = sd->status.last_point.y;
data->someNumber = rand()%777;
ShowInfo("Created Appended map_session_data data, %d %d %d %d\n",data->lastMSGPosition.map,data->lastMSGPosition.x,data->lastMSGPosition.y,data->someNumber);
addToMSD(sd,data,0,true);
} else {
ShowInfo("Existent Appended map_session_data data, %d %d %d %d\n",data->lastMSGPosition.map,data->lastMSGPosition.x,data->lastMSGPosition.y,data->someNumber);
if( rand()%4 == 2 ) {
ShowInfo("Removing Appended map_session_data data\n");
removeFromMSD(sd,0);
}
}
clif->pGlobalMessage(fd,sd);
}
int my_pc_dropitem_storage;/* storage var */
/* my custom prehook for pc_dropitem, checks if amount of item being dropped is higher than 1 and if so cap it to 1 and store the value of how much it was */
int my_pc_dropitem_pre(struct map_session_data *sd,int *n,int *amount) {
my_pc_dropitem_storage = 0;
if( *amount > 1 ) {
my_pc_dropitem_storage = *amount;
*amount = 1;
}
return 0;
}
/* postHook receive retVal as the first param, allows posthook to act accordingly to whatever the original was going to return */
int my_pc_dropitem_post(int retVal, struct map_session_data *sd,int *n,int *amount) {
if( retVal != 1 ) return retVal;/* we don't do anything if pc_dropitem didn't return 1 (success) */
if( my_pc_dropitem_storage ) {/* signs whether pre-hook did this */
char output[99];
safesnprintf(output,99,"[ Warning ] you can only drop 1 item at a time, capped from %d to 1",my_pc_dropitem_storage);
clif->messagecolor_self(sd->fd, COLOR_RED, output);
}
return 1;
}
void parse_my_setting(const char *val) {
ShowDebug("Received 'my_setting:%s'\n",val);
/* do anything with the var e.g. config_switch(val) */
}
/* run when server starts */
HPExport void plugin_init (void) {
ShowInfo("Server type is ");
switch (SERVER_TYPE) {
case SERVER_TYPE_LOGIN: printf("Login Server\n"); break;
case SERVER_TYPE_CHAR: printf("Char Server\n"); break;
case SERVER_TYPE_MAP: printf ("Map Server\n"); break;
}
ShowInfo("I'm being run from the '%s' filename\n", SERVER_NAME);
/* addAtcommand("command-key",command-function) tells map server to call ACMD(sample) when "sample" command is used */
/* - it will print a warning when used on a non-map-server plugin */
addAtcommand("sample",sample);//link our '@sample' command
/* addScriptCommand("script-command-name","script-command-params-info",script-function) tells map server to call BUILDIN(sample) for the "sample(i)" command */
/* - it will print a warning when used on a non-map-server plugin */
addScriptCommand("sample","i",sample);
/* addCPCommand("console-command-name",command-function) tells server to call CPCMD(sample) for the 'this is a sample <optional-args>' console call */
/* in "console-command-name" usage of ':' indicates a category, for example 'this:is:a:sample' translates to 'this is a sample',
* therefore 'this -> is -> a -> sample', it can be used to aggregate multiple commands under the same category or to append commands to existing categories
* categories inherit the special keyword 'help' which prints the subsequent commands, e.g. 'server help' prints all categories and commands under 'server'
* therefore 'this help' would inform about 'is (category) -> a (category) -> sample (command)'*/
addCPCommand("this:is:a:sample",sample);
/* addPacket(packetID,packetLength,packetFunction,packetIncomingPoint) */
/* adds packetID of packetLength (-1 for dynamic length where length is defined in the packet { packetID (2 Byte) , packetLength (2 Byte) , ... })
* to trigger packetFunction in the packetIncomingPoint section ( available points listed in enum HPluginPacketHookingPoints within src/common/HPMi.h ) */
addPacket(0xf3,-1,sample_packet0f3,hpClif_Parse);
/* in this sample we add a PreHook to pc->dropitem */
/* to identify whether the item being dropped is on amount higher than 1 */
/* if so, it stores the amount on a variable (my_pc_dropitem_storage) and changes the amount to 1 */
addHookPre("pc->dropitem",my_pc_dropitem_pre);
/* in this sample we add a PostHook to pc->dropitem */
/* if the original pc->dropitem was successful and the amount stored on my_pc_dropitem_storage is higher than 1, */
/* our posthook will display a message to the user about the cap */
/* - by checking whether it was successful (retVal value) it allows for the originals conditions to take place */
addHookPost("pc->dropitem",my_pc_dropitem_post);
}
/* triggered when server starts loading, before any server-specific data is set */
HPExport void server_preinit (void) {
/* makes map server listen to mysetting:value in any "battleconf" file (including imported or custom ones) */
/* value is not limited to numbers, its passed to our plugins handler (parse_my_setting) as const char *,
* and thus can be manipulated at will */
addBattleConf("my_setting",parse_my_setting);
}
/* run when server is ready (online) */
HPExport void server_online (void) {
}
/* run when server is shutting down */
HPExport void plugin_final (void) {
ShowInfo ("%s says ~Bye world\n",pinfo.name);
}
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