dfhack/plugins/follow.cpp

129 lines
3.2 KiB
C++

// Make the camera follow the selected unit
#include "Core.h"
#include <Console.h>
#include <Export.h>
#include <PluginManager.h>
#include "DFHack.h"
#include "DataDefs.h"
#include "modules/Gui.h"
#include "modules/World.h"
#include "modules/Maps.h"
#include <df/unit.h>
#include <df/creature_raw.h>
using namespace DFHack;
using namespace df::enums;
command_result follow (Core * c, std::vector <std::string> & parameters);
df::unit *followedUnit;
int32_t prevX, prevY, prevZ;
DFhackCExport const char * plugin_name ( void )
{
return "follow";
}
DFhackCExport command_result plugin_init ( Core * c, std::vector <PluginCommand> &commands)
{
commands.clear();
commands.push_back(PluginCommand(
"follow", "Follow the selected unit until camera control is released",
follow, false,
" Select a unit and run this plugin to make the camera follow it. Moving the camera yourself deactivates the plugin.\n"
));
followedUnit = 0;
prevX=prevY=prevZ = -1;
return CR_OK;
}
DFhackCExport command_result plugin_shutdown ( Core * c )
{
return CR_OK;
}
// Called to notify the plugin about important state changes.
// Invoked with DF suspended, and always before the matching plugin_onupdate.
// More event codes may be added in the future.
DFhackCExport command_result plugin_onstatechange(Core* c, state_change_event event)
{
switch (event) {
case SC_GAME_LOADED:
case SC_GAME_UNLOADED:
followedUnit = 0;
prevX=prevY=prevZ = -1;
break;
default:
break;
}
return CR_OK;
}
DFhackCExport command_result plugin_onupdate ( Core * c )
{
if (!followedUnit) return CR_OK;
DFHack::World *world =c->getWorld();
if (world->ReadPauseState() && prevX==-1) return CR_OK;
Gui *gui = c->getGui();
df::coord &unitPos = followedUnit->pos;
int32_t x,y,z,w,h;
gui->getViewCoords(x,y,z);
gui->getWindowSize(w,h);
if (prevX==-1)
{
prevX = x;
prevY = y;
prevZ = z;
}
else if(prevX != x || prevY != y || prevZ != z)
{
followedUnit = 0;
prevX=prevY=prevZ = -1;
c->con.print("No longer following anything.\n");
return CR_OK;
}
uint32_t x_max, y_max, z_max;
Simple::Maps::getSize(x_max, y_max, z_max);
x_max *= 16;
y_max *= 16;
prevX = unitPos.x + w/2 >= x_max ? x_max-w+2 : (unitPos.x >= w/2 ? unitPos.x - w/2 : 0);
prevY = unitPos.y + h/2 >= y_max ? y_max-h+2 : (unitPos.y >= h/2 ? unitPos.y - h/2 : 0);
prevZ = unitPos.z;
gui->setViewCoords(prevX, prevY, prevZ);
return CR_OK;
}
command_result follow (Core * c, std::vector <std::string> & parameters)
{
if (!parameters.empty())
return CR_WRONG_USAGE;
CoreSuspender suspend(c);
followedUnit = getSelectedUnit(c);
if (followedUnit)
{
c->con.print("Unpause to begin following ");
c->con.print(df::global::world->raws.creatures.all[followedUnit->race]->name[0].c_str());
if (followedUnit->name.has_name)
{
c->con.print(" %s", followedUnit->name.first_name.c_str());
}
c->con.print(".\n");
}
else followedUnit = 0;
return CR_OK;
}