From b9d4e0c10b4ef3322947d2b5ed648544986b557c Mon Sep 17 00:00:00 2001 From: Simon Howard Date: Mon, 1 Feb 2010 19:13:33 +0000 Subject: Create strife directory as a copy of doom directory, change Makefile.am to build libstrife.a rather than libdoom.a, add chocolate-strife to src/Makefile.am. Subversion-branch: /branches/strife-branch Subversion-revision: 1840 --- src/strife/deh_frame.c | 170 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 170 insertions(+) create mode 100644 src/strife/deh_frame.c (limited to 'src/strife/deh_frame.c') diff --git a/src/strife/deh_frame.c b/src/strife/deh_frame.c new file mode 100644 index 00000000..e59f09f4 --- /dev/null +++ b/src/strife/deh_frame.c @@ -0,0 +1,170 @@ +// Emacs style mode select -*- C++ -*- +//----------------------------------------------------------------------------- +// +// Copyright(C) 2005 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. +// +// 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. +// +//----------------------------------------------------------------------------- +// +// Parses "Frame" sections in dehacked files +// +//----------------------------------------------------------------------------- + +#include +#include + +#include "doomtype.h" +#include "d_items.h" +#include "info.h" + +#include "deh_defs.h" +#include "deh_io.h" +#include "deh_main.h" +#include "deh_mapping.h" + +DEH_BEGIN_MAPPING(state_mapping, state_t) + DEH_MAPPING("Sprite number", sprite) + DEH_MAPPING("Sprite subnumber", frame) + DEH_MAPPING("Duration", tics) + DEH_MAPPING("Next frame", nextstate) + DEH_MAPPING("Unknown 1", misc1) + DEH_MAPPING("Unknown 2", misc2) + DEH_UNSUPPORTED_MAPPING("Codep frame") +DEH_END_MAPPING + +static void *DEH_FrameStart(deh_context_t *context, char *line) +{ + int frame_number = 0; + state_t *state; + + if (sscanf(line, "Frame %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; + } + + if (frame_number >= DEH_VANILLA_NUMSTATES) + { + DEH_Warning(context, "Attempt to modify frame %i: this will cause " + "problems in Vanilla dehacked.", frame_number); + } + + state = &states[frame_number]; + + return state; +} + +// Simulate a frame overflow: Doom has 967 frames in the states[] array, but +// DOS dehacked internally only allocates memory for 966. As a result, +// attempts to set frame 966 (the last frame) will overflow the dehacked +// array and overwrite the weaponinfo[] array instead. +// +// This is noticable in Batman Doom where it is impossible to switch weapons +// away from the fist once selected. + +static void DEH_FrameOverflow(deh_context_t *context, char *varname, int value) +{ + if (!strcasecmp(varname, "Duration")) + { + weaponinfo[0].ammo = value; + } + else if (!strcasecmp(varname, "Codep frame")) + { + weaponinfo[0].upstate = value; + } + else if (!strcasecmp(varname, "Next frame")) + { + weaponinfo[0].downstate = value; + } + else if (!strcasecmp(varname, "Unknown 1")) + { + weaponinfo[0].readystate = value; + } + else if (!strcasecmp(varname, "Unknown 2")) + { + weaponinfo[0].atkstate = value; + } + else + { + DEH_Error(context, "Unable to simulate frame overflow: field '%s'", + varname); + } +} + +static void DEH_FrameParseLine(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; + } + + // all values are integers + + ivalue = atoi(value); + + if (state == &states[NUMSTATES - 1]) + { + DEH_FrameOverflow(context, variable_name, ivalue); + } + else + { + // set the appropriate field + + DEH_SetMapping(context, &state_mapping, state, variable_name, ivalue); + } +} + +static void DEH_FrameMD5Sum(md5_context_t *context) +{ + int i; + + for (i=0; i