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//
// Copyright(C) 2005-2014 Simon Howard
//
// 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.
//
//
// Parses Action Pointer entries in dehacked files
//
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "doomtype.h"
#include "info.h"
#include "deh_defs.h"
#include "deh_io.h"
#include "deh_main.h"
static actionf_t codeptrs[NUMSTATES];
static int CodePointerIndex(actionf_t *ptr)
{
int i;
for (i=0; i<NUMSTATES; ++i)
{
if (!memcmp(&codeptrs[i], ptr, sizeof(actionf_t)))
{
return i;
}
}
return -1;
}
static void DEH_PointerInit(void)
{
int i;
// Initialize list of dehacked pointers
for (i=0; i<NUMSTATES; ++i)
codeptrs[i] = states[i].action;
}
static void *DEH_PointerStart(deh_context_t *context, char *line)
{
int frame_number = 0;
// FIXME: can the third argument here be something other than "Frame"
// or are we ok?
if (sscanf(line, "Pointer %*i (%*s %i)", &frame_number) != 1)
{
DEH_Warning(context, "Parse error on section start");
return NULL;
}
if (frame_number < 0 || frame_number >= NUMSTATES)
{
DEH_Warning(context, "Invalid frame number: %i", frame_number);
return NULL;
}
return &states[frame_number];
}
static void DEH_PointerParseLine(deh_context_t *context, char *line, void *tag)
{
state_t *state;
char *variable_name, *value;
int ivalue;
if (tag == NULL)
return;
state = (state_t *) tag;
// Parse the assignment
if (!DEH_ParseAssignment(line, &variable_name, &value))
{
// Failed to parse
DEH_Warning(context, "Failed to parse assignment");
return;
}
// printf("Set %s to %s for state\n", variable_name, value);
// all values are integers
ivalue = atoi(value);
// set the appropriate field
if (!strcasecmp(variable_name, "Codep frame"))
{
if (ivalue < 0 || ivalue >= NUMSTATES)
{
DEH_Warning(context, "Invalid state '%i'", ivalue);
}
else
{
state->action = codeptrs[ivalue];
}
}
else
{
DEH_Warning(context, "Unknown variable name '%s'", variable_name);
}
}
static void DEH_PointerSHA1Sum(sha1_context_t *context)
{
int i;
for (i=0; i<NUMSTATES; ++i)
{
SHA1_UpdateInt32(context, CodePointerIndex(&states[i].action));
}
}
deh_section_t deh_section_pointer =
{
"Pointer",
DEH_PointerInit,
DEH_PointerStart,
DEH_PointerParseLine,
NULL,
DEH_PointerSHA1Sum,
};
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