/*  Starshatter OpenSource Distribution
    Copyright (c) 1997-2004, Destroyer Studios LLC.
    All Rights Reserved.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright notice,
      this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright notice,
      this list of conditions and the following disclaimer in the documentation
      and/or other materials provided with the distribution.
    * Neither the name "Destroyer Studios" nor the names of its contributors
      may be used to endorse or promote products derived from this software
      without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    POSSIBILITY OF SUCH DAMAGE.

    SUBSYSTEM:    Stars.exe
    FILE:         WeaponDesign.cpp
    AUTHOR:       John DiCamillo


    OVERVIEW
    ========
    Weapon Design parameters class
*/

#include "MemDebug.h"
#include "WeaponDesign.h"
#include "ShipDesign.h"
#include "Weapon.h"

#include "Game.h"
#include "Sprite.h"
#include "Light.h"
#include "Bitmap.h"
#include "Solid.h"
#include "Sound.h"
#include "DataLoader.h"

#include "ParseUtil.h"

// +--------------------------------------------------------------------+

static List<WeaponDesign> catalog;
static List<WeaponDesign> mod_catalog;
static bool               degrees;

#define GET_DEF_BOOL(x) if(defname==(#x))GetDefBool(design->x,pdef,filename)
#define GET_DEF_TEXT(x) if(defname==(#x))GetDefText(design->x,pdef,filename)
#define GET_DEF_NUM(x)  if(defname==(#x))GetDefNumber(design->x,pdef,filename)

// +--------------------------------------------------------------------+

WeaponDesign::WeaponDesign()
{
    type           = 0;
    secret         = 0;
    drone          = 0;
    primary        = 0;
    beam           = 0;
    flak           = 0;
    guided         = 0;
    self_aiming    = 0;
    syncro         = 0;
    value          = 0;
    decoy_type     = 0;
    probe          = 0;
    target_type    = 0;

    visible_stores = 0;
    nstores        = 0;
    nbarrels       = 0;

    recharge_rate  = 0.0f;
    refire_delay   = 0.0f;
    salvo_delay    = 0.0f;
    charge         = 0.0f;
    min_charge     = 0.0f;
    carry_mass     = 0.0f;
    carry_resist   = 0.0f;

    speed          = 0.0f;
    life           = 0.0f;
    mass           = 0.0f;
    drag           = 0.0f;
    thrust         = 0.0f;
    roll_rate      = 0.0f;
    pitch_rate     = 0.0f;
    yaw_rate       = 0.0f;
    roll_drag      = 0.0f;
    pitch_drag     = 0.0f;
    yaw_drag       = 0.0f;

    min_range      = 0.0f;
    max_range      = 0.0f;
    max_track      = 0.0f;

    graphic_type   = 0;
    width          = 0;
    length         = 0;

    scale          = 1.0f;
    explosion_scale = 0.0f;
    light          = 0.0f;
    light_color    = Color::White;
    flash_scale    = 0.0f;
    flare_scale    = 0.0f;

    spread_az      = 0.0f;
    spread_el      = 0.0f;

    beauty_img     = 0;
    turret_model   = 0;
    turret_base_model = 0;
    animation      = 0;
    anim_length    = 0;
    shot_img       = 0;
    shot_model     = 0;
    trail_img      = 0;
    flash_img      = 0;
    flare_img      = 0;
    sound_resource = 0;

    ammo           = -1;
    ripple_count   = 0;
    capacity       = 100.0f;
    damage         = 1.0f;
    damage_type    = 0;
    penetration    = 1.0f;
    firing_cone    = 0.0f;
    aim_az_max     = 1.5f;
    aim_az_min     = -1.5f;
    aim_az_rest    = 0.0f;
    aim_el_max     = 1.5f;
    aim_el_min     = -1.5f;
    aim_el_rest    = 0.0f;
    slew_rate      = (float) (60*DEGREES);
    turret_axis    = 0;
    lethal_radius  = 500.0f;
    integrity      = 100.0f;

    eject          = Vec3(0.0f, -100.0f, 0.0f);

    det_range      = 0.0f;
    det_count      = 0;
    det_spread     = (float) (PI/8);

    trail_length   = 0;
    trail_width    = 0;
    trail_dim      = 0;

    for (int i = 0; i < MAX_STORES; i++) {
        muzzle_pts[i]  = Vec3(0,0,0);
        attachments[i] = Vec3(0,0,0);
    }
}

WeaponDesign::~WeaponDesign()
{
    delete turret_model;
    delete turret_base_model;
    delete shot_model;
    delete sound_resource;
}

// +--------------------------------------------------------------------+

void
WeaponDesign::Initialize(const char* filename)
{
    Print("Loading Weapon Designs '%s'\n", filename);
    LoadDesign("Weapons/", filename);
}

// +--------------------------------------------------------------------+

void
WeaponDesign::Close()
{
    catalog.destroy();
    mod_catalog.destroy();
}

void
WeaponDesign::ClearModCatalog()
{
    mod_catalog.destroy();
}

// +--------------------------------------------------------------------+

void
WeaponDesign::LoadDesign(const char* path, const char* filename, bool mod)
{
    // Load Design File:
    DataLoader* loader = DataLoader::GetLoader();
    loader->SetDataPath(path);

    BYTE* block;
    int blocklen = loader->LoadBuffer(filename, block, true);

    Parser parser(new(__FILE__,__LINE__) BlockReader((const char*) block, blocklen));
    Term*  term = parser.ParseTerm();

    if (!term) {
        Print("ERROR: could not parse '%s'\n", filename);
        return;
    }
    else {
        TermText* file_type = term->isText();
        if (!file_type || file_type->value() != "WEAPON") {
            Print("ERROR: invalid weapon design file '%s'\n", filename);
            return;
        }
    }

    int type = 1;
    degrees  = false;

    do {
        delete term;

        term = parser.ParseTerm();

        if (term) {
            TermDef* def = term->isDef();
            if (def) {
                Text defname = def->name()->value();
                defname.setSensitive(false);

                if (defname == "primary"   ||
                        defname == "missile"   ||
                        defname == "drone"     ||
                        defname == "beam")       {

                    if (!def->term() || !def->term()->isStruct()) {
                        Print("WARNING: weapon structure missing in '%s'\n", filename);
                    }
                    else {
                        TermStruct*   val    = def->term()->isStruct();
                        WeaponDesign* design = new(__FILE__,__LINE__) WeaponDesign;

                        design->type = type++;
                        if (defname == "primary") {
                            design->primary = true;
                        }

                        else if (defname == "beam") {
                            design->primary = true;
                            design->beam    = true;
                            design->guided  = true;

                            design->spread_az = 0.15f;
                            design->spread_el = 0.15f;

                        }

                        else if (defname == "drone") {
                            design->drone       = true;
                            design->penetration = 5.0f;
                        }

                        else {   // missile
                            design->penetration = 5.0f;
                        }

                        float sound_min_dist = 1.0f;
                        float sound_max_dist = 100.0e3f;

                        for (int i = 0; i < val->elements()->size(); i++) {
                            TermDef* pdef = val->elements()->at(i)->isDef();
                            if (pdef) {
                                defname = pdef->name()->value();
                                defname.setSensitive(false);

                                GET_DEF_TEXT(name);
                                else GET_DEF_TEXT(group);
                                else GET_DEF_TEXT(description);
                                else GET_DEF_NUM (guided);
                                else GET_DEF_BOOL(self_aiming);
                                else GET_DEF_BOOL(flak);
                                else GET_DEF_BOOL(syncro);
                                else GET_DEF_BOOL(visible_stores);
                                else GET_DEF_NUM (value);

                                else if (defname==("degrees")) {
                                    GetDefBool(degrees,pdef,filename);
                                }

                                else if (defname==("secret")) {
                                    GetDefBool(design->secret,pdef,filename);
                                }

                                else if (defname==("aim_az_max")) {
                                    GetDefNumber(design->aim_az_max,pdef,filename);
                                    if (degrees) design->aim_az_max *= (float) DEGREES;
                                    design->aim_az_min = 0.0f - design->aim_az_max;
                                }

                                else if (defname==("aim_el_max")) {
                                    GetDefNumber(design->aim_el_max,pdef,filename);
                                    if (degrees) design->aim_el_max *= (float) DEGREES;
                                    design->aim_el_min = 0.0f - design->aim_el_max;
                                }

                                else if (defname==("aim_az_min")) {
                                    GetDefNumber(design->aim_az_min,pdef,filename);
                                    if (degrees) design->aim_az_min *= (float) DEGREES;
                                }

                                else if (defname==("aim_el_min")) {
                                    GetDefNumber(design->aim_el_min,pdef,filename);
                                    if (degrees) design->aim_el_min *= (float) DEGREES;
                                }

                                else if (defname==("aim_az_rest")) {
                                    GetDefNumber(design->aim_az_rest,pdef,filename);
                                    if (degrees) design->aim_az_rest *= (float) DEGREES;
                                }

                                else if (defname==("aim_el_rest")) {
                                    GetDefNumber(design->aim_el_rest,pdef,filename);
                                    if (degrees) design->aim_el_rest *= (float) DEGREES;
                                }

                                else if (defname==("spread_az")) {
                                    GetDefNumber(design->spread_az,pdef,filename);
                                    if (degrees) design->spread_az *= (float) DEGREES;
                                }

                                else if (defname==("spread_el")) {
                                    GetDefNumber(design->spread_el,pdef,filename);
                                    if (degrees) design->spread_el *= (float) DEGREES;
                                }

                                else GET_DEF_NUM (capacity);
                                else GET_DEF_NUM (recharge_rate);
                                else GET_DEF_NUM (refire_delay);
                                else GET_DEF_NUM (salvo_delay);
                                else GET_DEF_NUM (ammo);
                                else GET_DEF_NUM (ripple_count);
                                else GET_DEF_NUM (charge);
                                else GET_DEF_NUM (min_charge);
                                else GET_DEF_NUM (carry_mass);
                                else GET_DEF_NUM (carry_resist);
                                else GET_DEF_NUM (damage);
                                else GET_DEF_NUM (penetration);
                                else GET_DEF_NUM (speed);
                                else GET_DEF_NUM (life);
                                else GET_DEF_NUM (mass);
                                else GET_DEF_NUM (drag);
                                else GET_DEF_NUM (thrust);
                                else GET_DEF_NUM (roll_rate);
                                else GET_DEF_NUM (pitch_rate);
                                else GET_DEF_NUM (yaw_rate);
                                else GET_DEF_NUM (roll_drag);
                                else GET_DEF_NUM (pitch_drag);
                                else GET_DEF_NUM (yaw_drag);
                                else GET_DEF_NUM (lethal_radius);
                                else GET_DEF_NUM (integrity);

                                else GET_DEF_NUM (det_range);
                                else GET_DEF_NUM (det_count);
                                else GET_DEF_NUM (det_spread);
                                else GET_DEF_TEXT(det_child);

                                else GET_DEF_NUM (slew_rate);

                                else GET_DEF_NUM (min_range);
                                else GET_DEF_NUM (max_range);
                                else GET_DEF_NUM (max_track);

                                else GET_DEF_NUM (graphic_type);
                                else GET_DEF_NUM (width);
                                else GET_DEF_NUM (length);
                                else GET_DEF_NUM (scale);
                                else GET_DEF_NUM (explosion_scale);
                                else GET_DEF_NUM (light);
                                else GET_DEF_NUM (flash_scale);
                                else GET_DEF_NUM (flare_scale);

                                else GET_DEF_NUM (trail_length);
                                else GET_DEF_NUM (trail_width);
                                else GET_DEF_NUM (trail_dim);

                                else GET_DEF_TEXT(beauty);
                                else GET_DEF_TEXT(bitmap);
                                else GET_DEF_TEXT(turret);
                                else GET_DEF_TEXT(turret_base);
                                else GET_DEF_TEXT(model);
                                else GET_DEF_TEXT(trail);
                                else GET_DEF_TEXT(flash);
                                else GET_DEF_TEXT(flare);
                                else GET_DEF_TEXT(sound);
                                else GET_DEF_BOOL(probe);
                                else GET_DEF_NUM (turret_axis);
                                else GET_DEF_NUM (target_type);

                                else if (defname == "animation") {
                                    if (design->anim_length < 16) {
                                        GetDefText(design->anim_frames[design->anim_length++], pdef, filename);
                                    }
                                    else {
                                        Print("WARNING: too many animation frames for weapon '%s' in '%s'\n",
                                        (const char*) design->name, filename);
                                    }
                                }

                                else if (defname == "light_color")
                                GetDefColor(design->light_color, pdef, filename);

                                else if (defname == "sound_min_dist")
                                GetDefNumber(sound_min_dist,pdef,filename);

                                else if (defname == "sound_max_dist")
                                GetDefNumber(sound_max_dist,pdef,filename);

                                else if (defname == "muzzle") {
                                    if (design->nbarrels < MAX_STORES) {
                                        Vec3 a;
                                        GetDefVec(a, pdef, filename);
                                        design->muzzle_pts[design->nbarrels++] = a;
                                    }
                                    else {
                                        Print("WARNING: too many muzzles for weapon '%s' in '%s'\n",
                                        (const char*) design->name, filename);
                                    }
                                }

                                else if (defname == "attachment") {
                                    if (design->nstores < MAX_STORES) {
                                        Vec3 a;
                                        GetDefVec(a, pdef, filename);
                                        design->attachments[design->nstores++] = a;
                                    }
                                    else {
                                        Print("WARNING: too many attachments for weapon '%s' in '%s'\n",
                                        (const char*) design->name, filename);
                                    }
                                }

                                else if (defname == "eject")
                                GetDefVec(design->eject,pdef,filename);

                                else if (defname == "decoy") {
                                    char typestr[32];
                                    GetDefText(typestr, pdef, filename);
                                    design->decoy_type = ShipDesign::ClassForName(typestr);
                                }

                                else if (defname == "damage_type") {
                                    char typestr[32];
                                    GetDefText(typestr, pdef, filename);

                                    if (!_stricmp(typestr, "normal"))
                                    design->damage_type = DMG_NORMAL;

                                    else if (!_stricmp(typestr, "emp"))
                                    design->damage_type = DMG_EMP;

                                    else if (!_stricmp(typestr, "power"))
                                    design->damage_type = DMG_POWER;

                                    else
                                    Print("WARNING: unknown weapon damage type '%s' in '%s'\n",
                                    typestr, filename);
                                }


                                else {
                                    Print("WARNING: parameter '%s' ignored in '%s'\n",
                                    defname.data(), filename);
                                }
                            }
                            else {
                                Print("WARNING: term ignored in '%s'\n", filename);
                                val->elements()->at(i)->print();
                            }
                        }

                        if (design->description.length()) {
                            design->description = Game::GetText(design->description);
                        }

                        if (design->anim_length > 0) {
                            design->animation = new(__FILE__,__LINE__) Bitmap[design->anim_length];
                            for (int i = 0; i < design->anim_length; i++) {
                                Bitmap* p = design->animation + i;
                                loader->LoadBitmap(design->anim_frames[i], *p, Bitmap::BMP_TRANSLUCENT);
                                p->MakeTexture();
                            }
                        }

                        else if (design->bitmap.length()) {
                            loader->LoadTexture(design->bitmap, design->shot_img, Bitmap::BMP_TRANSLUCENT);
                        }

                        if (design->beauty.length()) {
                            loader->LoadTexture(design->beauty, design->beauty_img, Bitmap::BMP_TRANSLUCENT);
                        }

                        if (design->turret.length()) {
                            Text        p;
                            Text        t = design->turret;
                            const char* s = strrchr(t.data(), '/');

                            if (s) {
                                p = Text(path) + t.substring(0, s-t.data()+1);
                                t = t.substring(s-t.data()+1, t.length());
                            }
                            else {
                                s = strrchr(t.data(), '\\');

                                if (s) {
                                    p = Text(path) + t.substring(0, s-t.data()+1);
                                    t = t.substring(s-t.data()+1, t.length());
                                }
                            }

                            if (p.length())
                            loader->SetDataPath(p);

                            design->turret_model = new(__FILE__,__LINE__) Model;
                            design->turret_model->Load(t, design->scale);

                            if (design->turret_base.length()) {
                                t = design->turret_base;
                                s = strrchr(t.data(), '/');

                                if (s) {
                                    p = Text(path) + t.substring(0, s-t.data()+1);
                                    t = t.substring(s-t.data()+1, t.length());
                                }
                                else {
                                    s = strrchr(t.data(), '\\');

                                    if (s) {
                                        p = Text(path) + t.substring(0, s-t.data()+1);
                                        t = t.substring(s-t.data()+1, t.length());
                                    }
                                }

                                if (p.length())
                                loader->SetDataPath(p);

                                design->turret_base_model = new(__FILE__,__LINE__) Model;
                                design->turret_base_model->Load(t, design->scale);
                            }

                            loader->SetDataPath(path);
                        }

                        if (design->model.length()) {
                            Text        p;
                            Text        t = design->model;
                            const char* s = strrchr(t.data(), '/');

                            if (s) {
                                p = Text(path) + t.substring(0, s-t.data()+1);
                                t = t.substring(s-t.data()+1, t.length());
                            }
                            else {
                                s = strrchr(t.data(), '\\');

                                if (s) {
                                    p = Text(path) + t.substring(0, s-t.data()+1);
                                    t = t.substring(s-t.data()+1, t.length());
                                }
                            }

                            if (p.length())
                            loader->SetDataPath(p);

                            design->shot_model = new(__FILE__,__LINE__) Model;
                            design->shot_model->Load(t, design->scale);

                            loader->SetDataPath(path);
                        }

                        if (design->trail.length()) {
                            loader->LoadTexture(design->trail, design->trail_img, Bitmap::BMP_TRANSLUCENT);
                        }

                        if (design->flash.length()) {
                            loader->LoadTexture(design->flash, design->flash_img, Bitmap::BMP_TRANSLUCENT);
                        }

                        if (design->flare.length()) {
                            loader->LoadTexture(design->flare, design->flare_img, Bitmap::BMP_TRANSLUCENT);
                        }

                        if (design->sound.length()) {
                            int SOUND_FLAGS = Sound::LOCALIZED | Sound::LOC_3D;

                            if (design->beam)
                            SOUND_FLAGS = Sound::LOCALIZED | Sound::LOC_3D | Sound::LOCKED;

                            if (strstr(path, "Mods") == 0)
                            loader->SetDataPath("Sounds/");
                            loader->LoadSound(design->sound, design->sound_resource, SOUND_FLAGS);
                            loader->SetDataPath(path);

                            if (design->sound_resource) {
                                design->sound_resource->SetMinDistance(sound_min_dist);
                                design->sound_resource->SetMaxDistance(sound_max_dist);
                            }
                        }

                        if (design->max_range == 0.0f)
                        design->max_range = design->speed * design->life;

                        if (design->max_track == 0.0f)
                        design->max_track = 3.0f * design->max_range;

                        if (design->probe && design->lethal_radius < 1e3)
                        design->lethal_radius = 50e3f;

                        if (design->beam)
                        design->flak = false;

                        if (design->self_aiming) {
                            if (fabs(design->aim_az_max) > design->firing_cone)
                            design->firing_cone = (float) fabs(design->aim_az_max);

                            if (fabs(design->aim_az_min) > design->firing_cone)
                            design->firing_cone = (float) fabs(design->aim_az_min);

                            if (fabs(design->aim_el_max) > design->firing_cone)
                            design->firing_cone = (float) fabs(design->aim_el_max);

                            if (fabs(design->aim_el_min) > design->firing_cone)
                            design->firing_cone = (float) fabs(design->aim_el_min);
                        }

                        if (mod)
                        mod_catalog.append(design);
                        else
                        catalog.append(design);
                    }
                }

                else
                Print("WARNING: unknown definition '%s' in '%s'\n",
                def->name()->value().data(), filename);
            }
            else {
                Print("WARNING: term ignored in '%s'\n", filename);
                term->print();
            }
        }
    }
    while (term);

    loader->ReleaseBuffer(block);
    loader->SetDataPath(0);
}

// +--------------------------------------------------------------------+

WeaponDesign*
WeaponDesign::Get(int type)
{
    WeaponDesign  test;
    test.type = type;

    WeaponDesign* result = catalog.find(&test);

    if (!result)
    result = mod_catalog.find(&test);

    return result;
}

// +--------------------------------------------------------------------+

WeaponDesign*
WeaponDesign::Find(const char* name)
{
    for (int i = 0; i < catalog.size(); i++) {
        WeaponDesign* d = catalog.at(i);

        if (d->name == name) {
            return d;
        }
    }

    for (int i = 0; i < mod_catalog.size(); i++) {
        WeaponDesign* d = mod_catalog.at(i);

        if (d->name == name) {
            return d;
        }
    }

    Print("WeaponDesign: no catalog entry for design '%s', checking mods...\n", name);
    return WeaponDesign::FindModDesign(name);
}

WeaponDesign*
WeaponDesign::FindModDesign(const char* name)
{
    Text fname = name;
    fname += ".def";

    LoadDesign("Mods/Weapons/", fname, true);

    for (int i = 0; i < mod_catalog.size(); i++) {
        WeaponDesign* d = mod_catalog.at(i);

        if (d->name == name) {
            Print("WeaponDesign: found mod weapon '%s'\n", d->name.data());
            return d;
        }
    }

    Print("WeaponDesign: no mod found for design '%s'\n", name);
    return 0;
}

// +--------------------------------------------------------------------+

int
WeaponDesign::GetDesignList(List<Text>& designs)
{
    designs.clear();

    for (int i = 0; i < catalog.size(); i++) {
        WeaponDesign* design = catalog[i];
        designs.append(&design->name);
    }

    for (int i = 0; i < mod_catalog.size(); i++) {
        WeaponDesign* design = mod_catalog[i];
        designs.append(&design->name);
    }

    return designs.size();
}