/
tactical_sm.cc
1579 lines (1270 loc) · 41 KB
/
tactical_sm.cc
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/*
* Copyright 2011 Nicolai Hähnle
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "tactical_sm.h"
#include <cassert>
#include <cstring>
#include <cstdarg>
#include <cstdio>
#include <stdlib.h>
#include <limits>
#include <algorithm>
#include "Bot.h"
#include "State.h"
#include "zoc.h"
using namespace std;
/// Tweakable parameters
//@{
static const uint MaxEval = 100000; ///< max number of evaluations
static const uint AttackableManhattanDistance = 5; ///< max distance for an ant to trigger theater creation
static const uint TheaterCoreInfinity = 2; ///< max infinity norm distance for an ant to "belong" to the theater
static const uint MaxAttackRadius2 = 34; ///< radius up to which we consider attacking an enemy (this is the maximum distance a core ant can possibly attack)
static const float LearnGamma = 1.04;
//@}
static const float EpsilonValue = 0.0000001;
static const uint AttackRadius2 = 5;
static const uint AttackNeighboursRadius2 = 10;
static const int NrAttackNeighboursUpperBound = 49;
struct TacticalSm::Theater {
bool needupdate;
bool ismyperspective;
bool aggressive;
Location offset;
Submap basesm;
vector<Location> myants;
vector<Location> enemyants;
vector<int> enemyantplayers;
vector<PlayerMove *> mymoves;
vector<PlayerMove *> enemymoves;
uint myevaluated;
uint enemyevaluated;
uint strategy;
vector<uint> antcountsbyplayer;
Theater(Data & d) {reset(d);}
void reset(Data & d);
void flipsides();
};
struct TacticalSm::ShadowAnt {
Location pos;
bool hastactical;
};
enum {
MoveSel_MaxMin = 0,
MoveSel_MaxAvg,
MoveSelCount
};
struct VsPlayer {
float learn_normal[6][6][MoveSelCount];
float learn_aggressive[6][6][MoveSelCount];
VsPlayer() {
for (uint mycount = 0; mycount < 6; ++mycount) {
for (uint enemycount = 0; enemycount < 6; ++enemycount) {
for (uint ms = 0; ms < MoveSelCount; ++ms) {
learn_normal[mycount][enemycount][ms] = 1.0;
learn_aggressive[mycount][enemycount][ms] = 1.0;
}
}
}
}
};
struct TacticalSm::Data {
vector<VsPlayer> vs;
vector<ShadowAnt> myshadowants;
vector<Theater *> theaters;
uint nrmoves;
uint nrevals;
uint nrfullduplicatechecks;
uint nrfullduplicatesuccess;
vector<PlayerMove *> unusedmoves;
vector<Theater *> unusedtheaters;
vector<uint> tmp_candidates;
vector<float> tmp_values;
Data() {reset();}
~Data() {
reset();
while (!unusedtheaters.empty()) {
delete unusedtheaters.back();
unusedtheaters.pop_back();
}
while (!unusedmoves.empty()) {
delete unusedmoves.back();
unusedmoves.pop_back();
}
}
void reset() {
nrmoves = 0;
nrevals = 0;
nrfullduplicatechecks = 0;
nrfullduplicatesuccess = 0;
myshadowants.clear();
while (!theaters.empty()) {
Theater * theater = theaters.back();
theaters.pop_back();
theater->reset(*this);
unusedtheaters.push_back(theater);
}
}
PlayerMove * allocmove() {
if (!unusedmoves.empty()) {
PlayerMove * pm = unusedmoves.back();
unusedmoves.pop_back();
pm->reset();
return pm;
}
return new PlayerMove;
}
Theater * alloctheater() {
if (!unusedtheaters.empty()) {
Theater * th = unusedtheaters.back();
unusedtheaters.pop_back();
return th;
}
return new Theater(*this);
}
int is_duplicate_move(const vector<PlayerMove *> & moves, uint myidx);
};
void TacticalSm::Theater::reset(Data & d)
{
needupdate = true;
ismyperspective = true;
aggressive = false;
myants.clear();
enemyants.clear();
strategy = 0;
antcountsbyplayer.clear();
while (!mymoves.empty()) {
d.unusedmoves.push_back(mymoves.back());
mymoves.pop_back();
}
while (!enemymoves.empty()) {
d.unusedmoves.push_back(enemymoves.back());
enemymoves.pop_back();
}
myevaluated = 0;
enemyevaluated = 0;
}
void TacticalSm::Theater::flipsides()
{
ismyperspective = !ismyperspective;
basesm.flipsides();
swap(myants, enemyants);
swap(mymoves, enemymoves);
swap(myevaluated, enemyevaluated);
}
int TacticalSm::Data::is_duplicate_move(const vector<PlayerMove *> & moves, uint myidx)
{
PlayerMove & pm = *moves[myidx];
for (uint idx = 0; idx < moves.size(); ++idx) {
if (idx == myidx)
continue;
PlayerMove & other = *moves[idx];
if (other.hash != pm.hash)
continue;
nrfullduplicatechecks++;
for (int sq = 0; sq < Submap::Size * Submap::Size; ++sq) {
if (pm.map.map[sq] != other.map.map[sq])
goto notequal;
}
nrfullduplicatesuccess++;
return idx;
notequal: ;
}
return -1;
}
struct Outcome {
TacticalSm::Theater & th;
BaseSubmap<char> map;
Outcome(TacticalSm::Theater & th, int myidx, int enemyidx) : th(th) {
Location local;
for (local.row = 0; local.row < Submap::Size; ++local.row) {
for (local.col = 0; local.col < Submap::Size; ++local.col) {
unsigned char field = th.basesm[local];
if (field & Submap::Water) {
map[local] = '%';
} else if (field & Submap::Food) {
map[local] = '*';
} else if (field & Submap::Hill) {
if (field & Submap::Mine)
map[local] = 'H';
else
map[local] = 'h';
} else {
uint8_t myfield = th.mymoves[myidx]->map[local];
uint8_t enemyfield = th.enemymoves[enemyidx]->map[local];
if (myfield & PlayerMove::AntsMask) {
map[local] = 'Q' + (myfield >> PlayerMove::AntsShift);
} else if (enemyfield & PlayerMove::AntsMask) {
map[local] = 'q' + (enemyfield >> PlayerMove::AntsShift);
} else {
if (myfield & PlayerMove::AttackMask) {
if (enemyfield & PlayerMove::AttackMask)
map[local] = '+';
else
map[local] = '<';
} else if (enemyfield & PlayerMove::AttackMask) {
map[local] = '>';
} else {
map[local] = '.';
}
}
}
}
}
markmove(*th.mymoves[myidx], "ADC");
markmove(*th.enemymoves[enemyidx], "adc");
}
void markmove(PlayerMove & move, const char * markers) {
for (uint antidx = 0; antidx < move.antmoves.size(); ++antidx) {
PlayerMove::AntMove & am = move.antmoves[antidx];
if (!th.basesm.inside(am.pos))
continue;
if (am.collided)
map[am.pos] = markers[2];
else if (am.killed)
map[am.pos] = markers[1];
else
map[am.pos] = markers[0];
}
}
};
ostream & operator<<(ostream & out, const Outcome & outcome) {
Location local;
for (local.row = 0; local.row < Submap::Size; ++local.row) {
for (local.col = 0; local.col < Submap::Size; ++local.col) {
out << outcome.map[local];
}
out << endl;
}
return out;
}
TacticalSm::TacticalSm(Bot & bot_) :
TacticalSmBase(bot_),
d(*new Data)
{
}
TacticalSm::~TacticalSm()
{
delete &d;
}
void TacticalSm::init()
{
TacticalSmBase::init();
state.bug.time << "Using TacticalSm" << endl;
}
struct CloserToCenterCompare {
bool operator()(const Location & a, const Location & b) const {
uint a2 = Submap::eucliddist2(a, Location(Submap::Radius, Submap::Radius));
uint b2 = Submap::eucliddist2(b, Location(Submap::Radius, Submap::Radius));
return a2 < b2;
}
};
struct NewMove {
NewMove(TacticalSm & t_, TacticalSm::Theater & th_, uint myidxbase, const char * why) :
t(t_), d(t_.d), th(th_), state(t_.state), shouldcommit(false)
{
state.bug << "Preliminary insert new move " << th.mymoves.size() << " due to " << why
<< " perspective " << (th.ismyperspective ? "mine" : "enemy") << endl;
th.mymoves.push_back(d.allocmove());
th.mymoves.back()->init(*th.mymoves[myidxbase]);
}
~NewMove()
{
if (!shouldcommit) {
d.unusedmoves.push_back(th.mymoves.back());
th.mymoves.pop_back();
state.bug << "Abort new move " << th.mymoves.size() << endl;
} else {
state.bug << "Commit new move " << (th.mymoves.size() - 1) << endl;
th.needupdate = true;
d.nrmoves++;
}
}
PlayerMove & move() {return *th.mymoves.back();}
void antmove(uint myantidx, int direction)
{
PlayerMove & pm = move();
pm.ant_unmark(myantidx);
PlayerMove::AntMove & am = pm.antmoves[myantidx];
am.direction = direction;
th.basesm.getneighbouropt(th.myants[myantidx], direction, am.pos);
pm.ant_mark(myantidx);
state.bug << " antmove " << myantidx << " to " << cdir(direction) << " aka " << am.pos << endl;
}
void commit()
{
//assert(!shouldcommit);
PlayerMove & pm = move();
pm.computehash();
if (d.is_duplicate_move(th.mymoves, th.mymoves.size() - 1) >= 0) {
state.bug << "New move is equal to an old move" << endl;
return;
}
shouldcommit = true;
}
TacticalSm & t;
TacticalSm::Data & d;
TacticalSm::Theater & th;
State & state;
bool shouldcommit;
};
struct Improve {
TacticalSm & t;
TacticalSm::Data & d;
TacticalSm::Theater & th;
State & state;
uint myidx;
uint enemyidx;
struct Death {
uint myantidx;
uint enemyantidx;
};
vector<Death> deaths;
Improve(TacticalSm & t_, TacticalSm::Theater & th_, uint myidx_, uint enemyidx_) :
t(t_), d(t_.d), th(th_), state(t_.state),
myidx(myidx_), enemyidx(enemyidx_)
{
}
void compute_deaths()
{
PlayerMove & mymove = themymove();
PlayerMove & enemymove = theenemymove();
mymove.reset_killed();
enemymove.reset_killed();
for (uint myantidx = 0; myantidx < mymove.antmoves.size(); ++myantidx) {
PlayerMove::AntMove & am = mymove.antmoves[myantidx];
if (am.collided || !th.basesm.inside(am.pos))
continue;
uint nrenemies = enemymove.map[am.pos] & PlayerMove::AttackMask;
if (nrenemies == 0)
continue;
for (uint enemyantidx = 0; enemyantidx < enemymove.antmoves.size(); ++enemyantidx) {
PlayerMove::AntMove & em = enemymove.antmoves[enemyantidx];
if (em.collided || !th.basesm.inside(em.pos))
continue;
Location kernel
(em.pos.row - am.pos.row + AttackKernelRadius,
em.pos.col - am.pos.col + AttackKernelRadius);
if ((mymove.map[em.pos] & PlayerMove::AttackMask) > nrenemies)
continue;
if
(kernel.row < 0 || kernel.row >= AttackKernelSize ||
kernel.col < 0 || kernel.col >= AttackKernelSize ||
!AttackKernel[kernel.row][kernel.col])
continue;
am.killed = 1;
em.killer = 1;
// ignore deaths that are too far from the center, because we cannot assess them accurately
if (th.basesm.eucliddist2(am.pos, Location(Submap::Radius, Submap::Radius)) > MaxAttackRadius2)
break;
deaths.push_back(Death());
deaths.back().myantidx = myantidx;
deaths.back().enemyantidx = enemyantidx;
break;
}
}
for (uint enemyantidx = 0; enemyantidx < enemymove.antmoves.size(); ++enemyantidx) {
PlayerMove::AntMove & am = enemymove.antmoves[enemyantidx];
if (am.collided || !th.basesm.inside(am.pos))
continue;
uint nrenemies = mymove.map[am.pos] & PlayerMove::AttackMask;
if (nrenemies == 0)
continue;
for (uint myantidx = 0; myantidx < mymove.antmoves.size(); ++myantidx) {
PlayerMove::AntMove & em = mymove.antmoves[myantidx];
if (em.collided || !th.basesm.inside(em.pos))
continue;
Location kernel
(em.pos.row - am.pos.row + AttackKernelRadius,
em.pos.col - am.pos.col + AttackKernelRadius);
if ((enemymove.map[em.pos] & PlayerMove::AttackMask) > nrenemies)
continue;
if
(kernel.row < 0 || kernel.row >= AttackKernelSize ||
kernel.col < 0 || kernel.col >= AttackKernelSize ||
!AttackKernel[kernel.row][kernel.col])
continue;
am.killed = 1;
em.killer = 1;
break;
}
}
}
void avoid_collisions()
{
NewMove nm(t, th, myidx, "collision avoidance");
const PlayerMove & mymove = themymove();
const PlayerMove & enemymove = theenemymove();
uint p = getprime();
uint ofs = fastrng() % mymove.antmoves.size();
for (uint preidx = 0; preidx < mymove.antmoves.size(); ++preidx) {
uint myantidx = (p * preidx + ofs) % mymove.antmoves.size();
const PlayerMove::AntMove & am = mymove.antmoves[myantidx];
if (!am.collider)
continue;
#define checkacceptable(label) \
do { \
Location to; \
if (!th.basesm.getneighbouropt(from, dir, to)) break; \
if (th.basesm[to] & Submap::Water) break; \
if (nm.move().map[to] & PlayerMove::AntsMask) break; \
altdir = dir; \
if ((enemymove.map[to] & PlayerMove::AttackMask) == 0) \
goto label; \
} while(0)
Location from = th.myants[myantidx];
int olddir = am.direction;
if (olddir == -1) {
int altdir = -1;
const int * dirperm = getdirperm();
for (int predir = 0; predir < TDIRECTIONS; ++predir) {
int dir = dirperm[predir];
checkacceptable(found1);
}
found1:
pushmove(nm, myantidx, altdir);
} else {
int altdir = olddir;
int dir = (olddir + 1 + (fastrng() & 2)) % TDIRECTIONS;
checkacceptable(found2);
dir = (dir + 2) % TDIRECTIONS;
checkacceptable(found2);
dir = (olddir + 2) % TDIRECTIONS;
checkacceptable(found2);
dir = -1;
checkacceptable(found2);
found2:
pushmove(nm, myantidx, altdir);
}
}
#undef checkacceptable
nm.commit();
}
// if one of ours is killed, see if we can kill the enemy instead
void do_defense()
{
for (uint idx = 0; idx < deaths.size(); ++idx) {
uint enemyantidx = deaths[idx].enemyantidx;
if (!theenemymove().antmoves[enemyantidx].sentoffense)
send_to_kill(enemyantidx, "defense");
}
}
bool pushmove(NewMove & nm, uint myantidx, int direction)
{
state.bug << " pushmove " << myantidx << " at " << nm.move().antmoves[myantidx].pos << " to " << cdir(direction) << endl;
// This has a bias towards retreating away from the enemy
for (int iters = 0; iters < 5; ++iters) {
PlayerMove::AntMove & am = nm.move().antmoves[myantidx];
nm.antmove(myantidx, direction);
if (!am.collided) {
state.bug << " pushmove success in iter " << iters << endl;
return true;
}
uint p = getprime();
uint ofs = fastrng() % th.myants.size();
for (uint preidx = 0; preidx < th.myants.size(); ++preidx) {
uint otheridx = (p * preidx + ofs) % th.myants.size();
PlayerMove::AntMove & otherm = nm.move().antmoves[otheridx];
if (otheridx == myantidx || otherm.pos != am.pos)
continue;
const Location & otherorig = th.myants[otheridx];
int allfreedirection = -2;
int collisiondirection = -2;
int attackeddirection = -2;
#define check_candidate(dir) \
do { \
Location n; \
if (!th.basesm.getneighbouropt(otherorig, (dir), n)) break; \
if (th.basesm[n] & Submap::Water) break; \
bool collision = nm.move().map[n] & PlayerMove::AntsMask; \
bool attacked = theenemymove().map[n] & PlayerMove::AttackMask; \
if (!collision && !attacked) { \
allfreedirection = dir; \
goto found; \
} else if (!attacked) { \
if (collisiondirection <= -2) collisiondirection = dir; \
} else if (!collision) { \
if (attackeddirection <= -2) attackeddirection = dir; \
} \
} while(0)
int altdir = (direction + 1 + (fastrng() & 2)) % TDIRECTIONS;
check_candidate(direction);
if (altdir != otherm.direction)
check_candidate(altdir);
altdir = (altdir + 2) % TDIRECTIONS;
if (altdir != otherm.direction)
check_candidate(altdir);
if (-1 != otherm.direction)
check_candidate(-1);
found:
if (allfreedirection >= -1)
direction = allfreedirection;
else if (collisiondirection >= -1)
direction = collisiondirection;
else if (attackeddirection >= -1)
direction = attackeddirection;
myantidx = otheridx;
break;
}
}
state.bug << " pushmove failed" << endl;
return false;
}
void compute_retreat_dir(const Location & orig, int origdir, const Location & attacker, int & noattackdir, int & awaydir)
{
const PlayerMove & mymove = themymove();
const PlayerMove & enemymove = theenemymove();
bool attackdirblocked = true;
bool awaydirblocked = true;
noattackdir = origdir;
awaydir = origdir;
const int * optdirperm = getoptdirperm();
for (int predir = 0; predir < TDIRECTIONS+1; ++predir) {
int dir = optdirperm[predir];
if (dir == origdir)
continue;
Location n;
if (!th.basesm.getneighbouropt(orig, dir, n))
continue;
if (th.basesm[n] & Submap::Water)
continue;
if ((enemymove.map[n] & PlayerMove::AttackMask) == 0) {
if (attackdirblocked) {
noattackdir = dir;
if (!(mymove.map[n] & PlayerMove::AntsMask))
attackdirblocked = false;
}
} else {
Location kernel
(attacker.row - n.row + AttackKernelRadius,
attacker.col - n.col + AttackKernelRadius);
if
(kernel.row < 0 || kernel.row >= AttackKernelSize ||
kernel.col < 0 || kernel.col >= AttackKernelSize ||
!AttackKernel[kernel.row][kernel.col])
{
if (awaydirblocked) {
awaydir = dir;
if (!(mymove.map[n] & PlayerMove::AntsMask))
awaydirblocked = false;
}
}
}
}
}
void do_retreat()
{
for (uint idx = 0; idx < deaths.size(); ++idx) {
const PlayerMove & mymove = themymove();
const PlayerMove & enemymove = theenemymove();
Death & death = deaths[idx];
const Location & orig = th.myants[death.myantidx];
const Location & other = enemymove.antmoves[death.enemyantidx].pos;
int origdir = mymove.antmoves[death.myantidx].direction;
int alt1dir;
int alt2dir;
compute_retreat_dir(orig, origdir, other, alt1dir, alt2dir);
if (alt1dir != origdir) {
NewMove nm(t, th, myidx, "retreat: unattacked field");
if (pushmove(nm, death.myantidx, alt1dir))
nm.commit();
}
if (alt2dir != origdir && alt2dir != alt1dir) {
NewMove nm(t, th, myidx, "retreat: get away from killer");
if (pushmove(nm, death.myantidx, alt2dir))
nm.commit();
}
}
if (deaths.size() >= 2) {
NewMove nm(t, th, myidx, "retreat: all at once");
const PlayerMove & mymove = themymove();
const PlayerMove & enemymove = theenemymove();
uint p = getprime();
uint ofs = fastrng() % deaths.size();
for (uint preidx = 0; preidx < deaths.size(); ++preidx) {
uint idx = (p * preidx + ofs) % deaths.size();
Death & death = deaths[idx];
const Location & orig = th.myants[death.myantidx];
const Location & other = enemymove.antmoves[death.enemyantidx].pos;
int origdir = mymove.antmoves[death.myantidx].direction;
int alt1dir;
int alt2dir;
compute_retreat_dir(orig, origdir, other, alt1dir, alt2dir);
bool moved = false;
if (alt1dir != origdir) {
if (pushmove(nm, death.myantidx, alt1dir))
moved = true;
}
if (!moved && alt2dir != origdir) {
pushmove(nm, death.myantidx, alt2dir);
}
}
nm.commit();
}
}
void send_to_kill(uint enemyantidx, const char * why)
{
PlayerMove & mymove = themymove();
PlayerMove & enemymove = theenemymove();
PlayerMove::AntMove & enemyant = enemymove.antmoves[enemyantidx];
Location enemypos = enemyant.pos;
enemymove.antmoves[enemyantidx].sentoffense = 1;
if (!th.basesm.inside(enemypos))
return;
if (th.myants.empty())
return;
state.bug << "check whether we can send ants to kill " << enemyantidx << " at " << enemypos << endl;
uint additionalidx[NrAttackNeighboursUpperBound];
int additionaldir[NrAttackNeighboursUpperBound];
uint additionalvalue[NrAttackNeighboursUpperBound];
uint nradditional = 0;
uint nrattackers = mymove.map[enemypos] & PlayerMove::AttackMask;
uint bestattacker = numeric_limits<uint>::max();
uint p = getprime();
uint ofs = fastrng() % th.myants.size();
for (uint preidx = 0; preidx < th.myants.size(); ++preidx) {
uint myantidx = (preidx * p + ofs) % th.myants.size();
const Location & orig = th.myants[myantidx];
const Location & current = mymove.antmoves[myantidx].pos;
// state.bug << " consider ant " << myantidx << " at " << current << " (from " << orig << ")" << endl;
if (th.basesm.eucliddist2(current, enemypos) <= AttackRadius2) {
// state.bug << " already attacking" << endl;
// already attacking the target
bestattacker = min(bestattacker, uint(enemymove.map[current] & PlayerMove::AttackMask));
continue;
}
if (th.basesm.eucliddist2(orig, enemypos) > AttackNeighboursRadius2)
continue; // too far away
// state.bug << " close enough" << endl;
int bestdirection = -1;
uint bestvalue = numeric_limits<uint>::max();
const int * optdirperm = getoptdirperm();
for (int predir = 0; predir < TDIRECTIONS + 1; ++predir) {
int dir = optdirperm[predir];
Location n;
if (!th.basesm.getneighbouropt(orig, dir, n))
continue;
if (th.basesm.eucliddist2(n, enemypos) > AttackRadius2)
continue;
if (th.basesm[n] & Submap::Water)
continue;
// state.bug << " consider moving to " << n << " " << cdir(dir) << endl;
uint value = enemymove.map[n] & PlayerMove::AttackMask;
if (value < bestvalue) {
bestvalue = value;
bestdirection = dir;
}
}
// state.bug << " best choice: " << cdir(bestdirection) << " attackers " << bestvalue << endl;
additionalidx[nradditional] = myantidx;
additionaldir[nradditional] = bestdirection;
additionalvalue[nradditional] = bestvalue;
nradditional++;
}
if (!nradditional)
return;
NewMove nm(t, th, myidx, why);
for (uint idx = 0; idx < nradditional; ++idx) {
// state.bug << idx << " nrattackers vs. bestattacker " << nrattackers << " " << bestattacker << endl;
if (nrattackers > bestattacker)
break;
uint myantidx = additionalidx[idx];
const Location & orig = th.myants[myantidx];
int dir = additionaldir[idx];
Location n;
if (!th.basesm.getneighbouropt(orig, dir, n)) {
abort();
}
if (nm.move().map[n] & PlayerMove::AntsMask)
continue;
state.bug << "moving " << myantidx << " to " << n << endl;
nm.antmove(myantidx, dir);
bestattacker = min(bestattacker, additionalvalue[idx]);
nrattackers++;
}
state.bug << "final nrattackers " << nrattackers << " vs " << bestattacker << endl;
if (nrattackers >= bestattacker) {
nm.commit();
}
}
void do_offense()
{
for (uint enemyantidx = 0; enemyantidx < th.enemyants.size(); ++enemyantidx) {
const PlayerMove & enemymove = theenemymove();
const PlayerMove::AntMove & enemyant = enemymove.antmoves[enemyantidx];
if (enemyant.collided || enemyant.sentoffense || (enemyant.killed && !enemyant.killer))
continue;
if (th.basesm.eucliddist2(enemyant.pos, Location(Submap::Radius, Submap::Radius)) > MaxAttackRadius2)
continue;
send_to_kill(enemyantidx, "offense");
}
}
void do_improve()
{
state.bug << "improve " << myidx << " vs " << enemyidx
<< " perspective: " << (th.ismyperspective ? "mine" : "enemy") << endl;
//
compute_deaths();
state.bug << Outcome(th, myidx, enemyidx);
//
if (themymove().nrcollided) {
state.bug << "avoid collisions" << endl;
avoid_collisions();
}
if (!deaths.empty()) {
// if one of ours is killed, see if we can retreat
do_retreat();
}
// try an unprovoked offense
do_offense();
}
PlayerMove & themymove() const {return *th.mymoves[myidx];}
PlayerMove & theenemymove() const {return *th.enemymoves[enemyidx];}
};
/**
* Look at the outcome of myidx move vs enemyidx move, and try to generate some better
* alternative moves for myself.
*/
void TacticalSm::improve(uint theateridx, uint myidx, uint enemyidx)
{
d.theaters[theateridx]->mymoves[myidx]->outcomes[enemyidx].improved++;
Improve imp(*this, *d.theaters[theateridx], myidx, enemyidx);
imp.do_improve();
}
static float hillvalue(const Submap & sm, const Location & pos, bool mine, float ValueHill)
{
if (sm[pos] & Submap::Hill) {
if (mine != bool(sm[pos] & Submap::Mine))
return ValueHill * ValueHill;
return 1.0;
}
for (int dir = 0; dir < TDIRECTIONS; ++dir) {
Location n;
if (!sm.getneighbour(pos, dir, n))
continue;
if (sm[n] & Submap::Hill) {
if (mine != bool(sm[pos] & Submap::Mine))
return ValueHill;
return 1.0;
}
}
return 1.0;
}
void TacticalSm::evaluate_moves(Theater & th, PlayerMove & mymove, PlayerMove & enemymove, float & myvalue, float & enemyvalue)
{
uint myenemydist = 0;
int myfooddist = 0;
int enemyfooddist = 0;
d.nrevals++;
if (mymove.nrcollided)
myvalue *= pow(ValueLoss, mymove.nrcollided);
if (enemymove.nrcollided)
enemyvalue *= pow(ValueLoss, enemymove.nrcollided);
for (uint myantidx = 0; myantidx < mymove.antmoves.size(); ++myantidx) {
PlayerMove::AntMove & am = mymove.antmoves[myantidx];
if (am.collided || !th.basesm.inside(am.pos))
continue;
am.killed = 0;
uint nrenemies = enemymove.map[am.pos] & PlayerMove::AttackMask;
if (nrenemies != 0) {
for (uint enemyantidx = 0; enemyantidx < enemymove.antmoves.size(); ++enemyantidx) {
const PlayerMove::AntMove & em = enemymove.antmoves[enemyantidx];
if (em.collided || !th.basesm.inside(em.pos))
continue;
if (th.basesm.eucliddist2(em.pos, am.pos) > AttackRadius2)
continue;
if ((mymove.map[em.pos] & PlayerMove::AttackMask) > nrenemies)
continue;
am.killed = 1;
break;
}
}
if (am.killed) {
if (th.aggressive)
myvalue /= ValueKill;
else
myvalue *= ValueLoss;
enemyvalue *= ValueKill;
} else {
Location global = state.addLocations(am.pos, th.offset);
float hv = hillvalue(th.basesm, am.pos, true, ValueHill);
myvalue *= hv;
enemyvalue *= 1.0 / hv;
myenemydist += bot.m_zoc.m_enemy[global];
uint fd = fooddist[global];
myfooddist += fd;
if (fd == 1) {
myvalue *= ValueEat;
enemyvalue /= ValueEat;
}
}
}
myvalue *= pow(ValueEnemyDist, myenemydist);
for (uint enemyantidx = 0; enemyantidx < enemymove.antmoves.size(); ++enemyantidx) {
PlayerMove::AntMove & am = enemymove.antmoves[enemyantidx];
if (am.collided || !th.basesm.inside(am.pos))
continue;
am.killed = 0;
uint nrenemies = mymove.map[am.pos] & PlayerMove::AttackMask;
if (nrenemies != 0) {