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/*
* additive.c - Quick way to define integer additive holding procedures
* This is old code, somewhat superceded by "holdingProc"
* procedures
*
* Copyright (C) 1996-2001, Thomas Andrews
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* This file encapsulates a specific class of bridge functions, namely,
* "additive" functions. An additive function is one that
* is computed suit-by-suit, with the total equalling the sum
* of the values for each suit.
*
* Examples include:
*
* hcp - high card points
* controls - A=2, K=1
* other "vectors" - AKQ-points, etc
* losers - the losing trick count
*
* All of these functions have the same interface, namely, they
* can be called suit-by-suit or for the entire hand. For example:
*
* [hcp south] computes the total hcp for south
* [hcp south spades] computes the hcp held by south in spades
*
* Additive functions are created with five parameters:
* interp - Tcl interpreter where the function is to be defined
* name - The name for the additive function
* func - ptr to function of type
* "int func(int hand, int suit, void *data)"
* data - Arbitrary data used by "func"
* freefunc - Function for freeing the data, ignored if NULL
*
* Note, additive functions are mostly superceded by the holdingProc
* code in holdings.c.
*
* Additive functions only return integers.
*
*/
#include "deal.h"
#include "additive.h"
#include "dealtypes.h"
/* Data structure for holding information about an additive function */
typedef struct additivecounter {
int (*func) PROTO((int /* holding */, void * /* data */));
void *data;
Tcl_CmdDeleteProc *freefunc;
} *AdditiveFunction;
#define AddFuncCall(addfunc,holding) \
(addfunc)->func(holding,(addfunc)->data)
static AdditiveFunction newAdditiveFunction(func,data,freefunc)
int (*func) PROTO((int /* holding */, void * /* data */));
Tcl_CmdDeleteProc *freefunc;
void *data;
{
AdditiveFunction result=(AdditiveFunction)
Tcl_Alloc(sizeof(struct additivecounter));
if (result==NULL) { return NULL; }
result->func=func;
result->data=data;
result->freefunc=freefunc;
return result;
}
static void deleteAdditiveFunction(ClientData ptr)
{
AdditiveFunction addf=(AdditiveFunction)ptr;
if (addf->freefunc!=0) {
(addf->freefunc)(addf->data);
}
Tcl_Free((void*)ptr);
}
/*
* This is the procedure as called from Tcl
*/
int tcl_count_additive( TCLOBJ_PARAMS ) TCLOBJ_DECL
{
static int subCmdInit=1,
handSubCmd=-1,
holdingSubCmd=-1;
int hand;
int suit;
AdditiveFunction addfunc=(AdditiveFunction)cd;
int total=0;
int i,subCmd;
if (subCmdInit) {
handSubCmd=Keyword_addKey("hand");
holdingSubCmd=Keyword_addKey("holding");
subCmdInit=0;
}
if (objc==1) {
char *name=Tcl_GetString(objv[0]);
Tcl_AppendResult(interp, "Usage Error: No args. Us either:\n\t",
name," <handname> [ <suitname> ... ]\nor\n\t",
name," hand <hand> [ <suitname> ...]\nor\n\t",
name," holding <holding> [<holding> <holding> ...]",
(char *)NULL);
return TCL_ERROR;
}
if (NOSEAT!=(hand=getHandNumFromObj(interp,objv[1]))) {
/* First argument is a hand name - hand is set to the hand number */
FINISH(hand); /* Make sure the hand is dealt */
if (objc==2) {
for (suit=0; suit<4; suit++) {
total += AddFuncCall(addfunc,globalDeal.hand[hand].suit[suit]);
}
} else {
for (i=2; i<objc; i++) {
suit=getSuitNumFromObj(interp,objv[i]);
if (suit==NOSUIT) {
char *badparam=Tcl_GetString(objv[i]);
Tcl_AppendResult(interp,Tcl_GetString(objv[0]),": Got ", badparam,
" when expecting a suit name",NULL);
return TCL_ERROR;
}
total += AddFuncCall(addfunc,globalDeal.hand[hand].suit[suit]);
}
}
Tcl_SetObjResult(interp,Tcl_NewIntObj(total));
return TCL_OK;
}
subCmd=Keyword_getIdFromObj(interp,objv[1]);
if (subCmd==handSubCmd) {
int total=0,suit,hnum[4];
if (objc!=3) {
Tcl_WrongNumArgs(interp,2,objv,"<hand>");
return TCL_ERROR;
}
if (TCL_OK!=getHandHoldingsFromObj(interp,objv[2],hnum)) {
Tcl_AppendResult(interp,"\nError: '",Tcl_GetString(objv[2]),
"' is not a proper hand",NULL);
return TCL_ERROR;
}
for (suit=0; suit<4; suit++) {
total += AddFuncCall(addfunc,hnum[suit]);
}
Tcl_SetObjResult(interp,Tcl_NewIntObj(total));
return TCL_OK;
}
if (subCmd==holdingSubCmd) {
int total=0;
for (i=2; i<objc; i++) {
int holding=getHoldingNumFromObj(interp,objv[i]);
if (holding<0) {
Tcl_AppendResult(interp,"invalid holding ",
Tcl_GetString(objv[i]),NULL);
return TCL_ERROR;
}
total += AddFuncCall(addfunc,holding);
}
Tcl_SetObjResult(interp,Tcl_NewIntObj(total));
return TCL_OK;
}
{
Tcl_AppendResult(interp,
"Nonexistant hand name '",Tcl_GetString(objv[1]),
"' used with ", Tcl_GetString(objv[0])," command",(char *)NULL);
return TCL_ERROR;
}
}
void *tcl_create_additive(interp,name,func,data,freefunc)
Tcl_Interp *interp;
char *name;
int (*func) PROTO((int /* holding */, void * /* data */));
void *data;
Tcl_CmdDeleteProc freefunc;
{
AdditiveFunction af=newAdditiveFunction(func,data,freefunc);
Tcl_CreateObjCommand(interp,name,tcl_count_additive,(ClientData)af,
deleteAdditiveFunction);
return (void *)af;
}
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