forked from bartvdbraak/blender
9a7ea9664e
Adding a UI to set the type on startup can be added easily.
# ----
class myPlayer(GameTypes.KX_GameObject):
def die(self):
# ... do stuff ...
self.endObject()
# make an instance
player = myPlayer(gameOb) # gameOb is made invalid now.
player.die()
# ----
One limitation (which could also be an advantage), is making the subclass instance will return that subclass everywhere, you cant have 2 different subclasses of the same BGE data at once.
343 lines
8.9 KiB
C++
343 lines
8.9 KiB
C++
/**
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* Assign, change, copy properties
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*
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include "SCA_PropertyActuator.h"
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#include "InputParser.h"
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#include "Operator2Expr.h"
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#include "ConstExpr.h"
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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/* ------------------------------------------------------------------------- */
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/* Native functions */
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/* ------------------------------------------------------------------------- */
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SCA_PropertyActuator::SCA_PropertyActuator(SCA_IObject* gameobj,SCA_IObject* sourceObj,const STR_String& propname,const STR_String& expr,int acttype)
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: SCA_IActuator(gameobj),
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m_type(acttype),
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m_propname(propname),
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m_exprtxt(expr),
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m_sourceObj(sourceObj)
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{
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// protect ourselves against someone else deleting the source object
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// don't protect against ourselves: it would create a dead lock
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if (m_sourceObj)
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m_sourceObj->RegisterActuator(this);
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}
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SCA_PropertyActuator::~SCA_PropertyActuator()
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{
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if (m_sourceObj)
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m_sourceObj->UnregisterActuator(this);
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}
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bool SCA_PropertyActuator::Update()
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{
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bool result = false;
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bool bNegativeEvent = IsNegativeEvent();
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RemoveAllEvents();
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if (bNegativeEvent)
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return false; // do nothing on negative events
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CValue* propowner = GetParent();
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CParser parser;
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parser.SetContext( propowner->AddRef());
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CExpression* userexpr= NULL;
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if (m_type==KX_ACT_PROP_TOGGLE)
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{
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/* dont use */
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CValue* newval;
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CValue* oldprop = propowner->GetProperty(m_propname);
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if (oldprop)
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{
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newval = new CBoolValue((oldprop->GetNumber()==0.0) ? true:false);
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oldprop->SetValue(newval);
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} else
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{ /* as not been assigned, evaluate as false, so assign true */
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newval = new CBoolValue(true);
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propowner->SetProperty(m_propname,newval);
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}
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newval->Release();
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}
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else if ((userexpr = parser.ProcessText(m_exprtxt))) {
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switch (m_type)
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{
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case KX_ACT_PROP_ASSIGN:
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{
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CValue* newval = userexpr->Calculate();
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CValue* oldprop = propowner->GetProperty(m_propname);
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if (oldprop)
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{
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oldprop->SetValue(newval);
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} else
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{
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propowner->SetProperty(m_propname,newval);
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}
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newval->Release();
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break;
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}
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case KX_ACT_PROP_ADD:
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{
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CValue* oldprop = propowner->GetProperty(m_propname);
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if (oldprop)
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{
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// int waarde = (int)oldprop->GetNumber(); /*unused*/
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CExpression* expr = new COperator2Expr(VALUE_ADD_OPERATOR,new CConstExpr(oldprop->AddRef()),
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userexpr->AddRef());
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CValue* newprop = expr->Calculate();
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oldprop->SetValue(newprop);
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newprop->Release();
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expr->Release();
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}
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break;
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}
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case KX_ACT_PROP_COPY:
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{
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if (m_sourceObj)
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{
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CValue* copyprop = m_sourceObj->GetProperty(m_exprtxt);
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if (copyprop)
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{
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CValue *val = copyprop->GetReplica();
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GetParent()->SetProperty(
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m_propname,
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val);
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val->Release();
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}
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}
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break;
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}
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/* case KX_ACT_PROP_TOGGLE: */ /* accounted for above, no need for userexpr */
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default:
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{
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}
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}
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userexpr->Release();
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}
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return result;
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}
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bool
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SCA_PropertyActuator::
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isValid(
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SCA_PropertyActuator::KX_ACT_PROP_MODE mode
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){
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bool res = false;
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res = ((mode > KX_ACT_PROP_NODEF) && (mode < KX_ACT_PROP_MAX));
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return res;
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}
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CValue*
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SCA_PropertyActuator::
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GetReplica() {
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SCA_PropertyActuator* replica = new SCA_PropertyActuator(*this);
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replica->ProcessReplica();
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return replica;
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};
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void SCA_PropertyActuator::ProcessReplica()
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{
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// no need to check for self reference like in the constructor:
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// the replica will always have a different parent
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if (m_sourceObj)
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m_sourceObj->RegisterActuator(this);
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SCA_IActuator::ProcessReplica();
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}
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bool SCA_PropertyActuator::UnlinkObject(SCA_IObject* clientobj)
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{
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if (clientobj == m_sourceObj)
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{
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// this object is being deleted, we cannot continue to track it.
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m_sourceObj = NULL;
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return true;
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}
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return false;
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}
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void SCA_PropertyActuator::Relink(GEN_Map<GEN_HashedPtr, void*> *obj_map)
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{
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void **h_obj = (*obj_map)[m_sourceObj];
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if (h_obj) {
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if (m_sourceObj)
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m_sourceObj->UnregisterActuator(this);
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m_sourceObj = (SCA_IObject*)(*h_obj);
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m_sourceObj->RegisterActuator(this);
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}
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}
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/* ------------------------------------------------------------------------- */
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/* Python functions */
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/* ------------------------------------------------------------------------- */
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/* Integration hooks ------------------------------------------------------- */
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PyTypeObject SCA_PropertyActuator::Type = {
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#if (PY_VERSION_HEX >= 0x02060000)
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PyVarObject_HEAD_INIT(NULL, 0)
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#else
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/* python 2.5 and below */
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PyObject_HEAD_INIT( NULL ) /* required py macro */
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0, /* ob_size */
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#endif
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"SCA_PropertyActuator",
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sizeof(PyObjectPlus_Proxy),
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0,
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py_base_dealloc,
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0,
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0,
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0,
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0,
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py_base_repr,
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0,0,0,0,0,0,0,0,0,
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Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
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0,0,0,0,0,0,0,
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Methods,
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0,
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0,
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&SCA_IActuator::Type,
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0,0,0,0,0,0,
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py_base_new
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};
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PyMethodDef SCA_PropertyActuator::Methods[] = {
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//Deprecated functions ------>
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{"setProperty", (PyCFunction) SCA_PropertyActuator::sPySetProperty, METH_VARARGS, (PY_METHODCHAR)SetProperty_doc},
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{"getProperty", (PyCFunction) SCA_PropertyActuator::sPyGetProperty, METH_VARARGS, (PY_METHODCHAR)GetProperty_doc},
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{"setValue", (PyCFunction) SCA_PropertyActuator::sPySetValue, METH_VARARGS, (PY_METHODCHAR)SetValue_doc},
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{"getValue", (PyCFunction) SCA_PropertyActuator::sPyGetValue, METH_VARARGS, (PY_METHODCHAR)GetValue_doc},
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//<----- Deprecated
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{NULL,NULL} //Sentinel
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};
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PyAttributeDef SCA_PropertyActuator::Attributes[] = {
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KX_PYATTRIBUTE_STRING_RW_CHECK("propName",0,100,false,SCA_PropertyActuator,m_propname,CheckProperty),
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KX_PYATTRIBUTE_STRING_RW("value",0,100,false,SCA_PropertyActuator,m_exprtxt),
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KX_PYATTRIBUTE_INT_RW("mode", KX_ACT_PROP_NODEF+1, KX_ACT_PROP_MAX-1, false, SCA_PropertyActuator, m_type), /* ATTR_TODO add constents to game logic dict */
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{ NULL } //Sentinel
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};
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/* 1. setProperty */
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const char SCA_PropertyActuator::SetProperty_doc[] =
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"setProperty(name)\n"
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"\t- name: string\n"
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"\tSet the property on which to operate. If there is no property\n"
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"\tof this name, the call is ignored.\n";
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PyObject* SCA_PropertyActuator::PySetProperty(PyObject* args, PyObject* kwds)
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{
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ShowDeprecationWarning("setProperty()", "the 'propName' property");
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/* Check whether the name exists first ! */
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char *nameArg;
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if (!PyArg_ParseTuple(args, "s:setProperty", &nameArg)) {
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return NULL;
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}
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CValue* prop = GetParent()->FindIdentifier(nameArg);
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if (!prop->IsError()) {
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m_propname = nameArg;
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} else {
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; /* not found ... */
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}
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prop->Release();
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Py_RETURN_NONE;
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}
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/* 2. getProperty */
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const char SCA_PropertyActuator::GetProperty_doc[] =
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"getProperty(name)\n"
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"\tReturn the property on which the actuator operates.\n";
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PyObject* SCA_PropertyActuator::PyGetProperty(PyObject* args, PyObject* kwds)
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{
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ShowDeprecationWarning("getProperty()", "the 'propName' property");
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return PyUnicode_FromString(m_propname);
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}
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/* 3. setValue */
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const char SCA_PropertyActuator::SetValue_doc[] =
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"setValue(value)\n"
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"\t- value: string\n"
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"\tSet the value with which the actuator operates. If the value\n"
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"\tis not compatible with the type of the property, the subsequent\n"
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"\t action is ignored.\n";
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PyObject* SCA_PropertyActuator::PySetValue(PyObject* args, PyObject* kwds)
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{
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ShowDeprecationWarning("setValue()", "the value property");
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char *valArg;
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if(!PyArg_ParseTuple(args, "s:setValue", &valArg)) {
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return NULL;
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}
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if (valArg) m_exprtxt = valArg;
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Py_RETURN_NONE;
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}
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/* 4. getValue */
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const char SCA_PropertyActuator::GetValue_doc[] =
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"getValue()\n"
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"\tReturns the value with which the actuator operates.\n";
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PyObject* SCA_PropertyActuator::PyGetValue(PyObject* args, PyObject* kwds)
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{
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ShowDeprecationWarning("getValue()", "the value property");
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return PyUnicode_FromString(m_exprtxt);
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}
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/* eof */
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