468 lines
18 KiB
Java
468 lines
18 KiB
Java
package mindustry.maps;
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import arc.math.*;
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import arc.math.geom.*;
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import arc.struct.*;
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import arc.util.*;
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import mindustry.ai.*;
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import mindustry.content.*;
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import mindustry.entities.*;
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import mindustry.entities.abilities.*;
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import mindustry.game.*;
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import mindustry.gen.*;
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import mindustry.logic.*;
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import mindustry.type.*;
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import mindustry.world.*;
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import mindustry.world.blocks.defense.*;
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import mindustry.world.blocks.defense.turrets.*;
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import mindustry.world.blocks.defense.turrets.Turret.*;
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import mindustry.world.blocks.storage.*;
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import static mindustry.Vars.*;
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public class SectorDamage{
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//direct damage is for testing only
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private static final boolean direct = false, rubble = true;
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private static final int maxWavesSimulated = 50;
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/** @return calculated capture progress of the enemy */
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public static float getDamage(SectorInfo info){
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float health = info.sumHealth;
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int wavesPassed = info.wavesPassed;
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int wave = info.wave;
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float waveSpace = info.waveSpacing;
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//this approach is O(n), it simulates every wave passing.
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//other approaches can assume all the waves come as one, but that's not as fair.
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if(wavesPassed > 0){
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int waveBegin = wave;
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int waveEnd = wave + wavesPassed;
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//do not simulate every single wave if there's too many
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if(wavesPassed > maxWavesSimulated){
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waveBegin = waveEnd - maxWavesSimulated;
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}
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for(int i = waveBegin; i <= waveEnd; i++){
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float efficiency = health / info.sumHealth;
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float dps = info.sumDps * efficiency;
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float rps = info.sumRps * efficiency;
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float enemyDps = info.waveDpsBase + info.waveDpsSlope * (i);
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float enemyHealth = info.waveHealthBase + info.waveHealthSlope * (i);
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//happens due to certain regressions
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if(enemyHealth < 0 || enemyDps < 0) continue;
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//calculate time to destroy both sides
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float timeDestroyEnemy = dps <= 0.0001f ? Float.POSITIVE_INFINITY : enemyHealth / dps; //if dps == 0, this is infinity
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float timeDestroyBase = health / (enemyDps - rps); //if regen > enemyDps this is negative
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//sector is lost, enemy took too long.
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if(timeDestroyEnemy > timeDestroyBase){
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health = 0f;
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break;
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}
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//otherwise, the enemy shoots for timeDestroyEnemy seconds, so calculate damage taken
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float damageTaken = timeDestroyEnemy * (enemyDps - rps);
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//damage the base.
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health -= damageTaken;
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//regen health after wave.
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health = Math.min(health + rps / 60f * waveSpace, info.sumHealth);
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}
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}
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return 1f - Mathf.clamp(health / info.sumHealth);
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}
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/** Applies wave damage based on sector parameters. */
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public static void applyCalculatedDamage(){
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//calculate base damage fraction
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float damage = getDamage(state.secinfo);
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//scaled damage has a power component to make it seem a little more realistic (as systems fail, enemy capturing gets easier and easier)
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float scaled = Mathf.pow(damage, 1.5f);
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//apply damage to units
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float unitDamage = damage * state.secinfo.sumHealth;
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Tile spawn = spawner.getFirstSpawn();
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//damage only units near the spawn point
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if(spawn != null){
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Seq<Unit> allies = new Seq<>();
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for(Unit ally : Groups.unit){
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if(ally.team == state.rules.defaultTeam && ally.within(spawn, state.rules.dropZoneRadius * 2.5f)){
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allies.add(ally);
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}
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}
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allies.sort(u -> u.dst2(spawn));
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//damage units one by one, not uniformly
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for(var u : allies){
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if(u.health < unitDamage){
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u.remove();
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unitDamage -= u.health;
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}else{
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u.health -= unitDamage;
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break;
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}
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}
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}
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if(state.secinfo.wavesPassed > 0){
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//simply remove each block in the spawner range if a wave passed
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for(Tile spawner : spawner.getSpawns()){
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spawner.circle((int)(state.rules.dropZoneRadius / tilesize), tile -> {
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if(tile.team() == state.rules.defaultTeam){
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if(rubble && tile.floor().hasSurface() && Mathf.chance(0.4)){
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Effect.rubble(tile.build.x, tile.build.y, tile.block().size);
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}
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tile.remove();
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}
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});
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}
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}
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//finally apply scaled damage
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apply(scaled);
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}
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/** Calculates damage simulation parameters before a game is saved. */
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public static void writeParameters(SectorInfo info){
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Building core = state.rules.defaultTeam.core();
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Seq<Tile> spawns = new Seq<>();
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spawner.eachGroundSpawn((x, y) -> spawns.add(world.tile(x, y)));
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if(spawns.isEmpty() && state.rules.waveTeam.core() != null){
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spawns.add(state.rules.waveTeam.core().tile);
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}
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if(core == null || spawns.isEmpty()) return;
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Tile start = spawns.first();
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Time.mark();
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var field = pathfinder.getField(state.rules.waveTeam, Pathfinder.costGround, Pathfinder.fieldCore);
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Seq<Tile> path = new Seq<>();
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boolean found = false;
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if(field != null && field.weights != null){
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int[][] weights = field.weights;
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int count = 0;
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Tile current = start;
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while(count < world.width() * world.height()){
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int minCost = Integer.MAX_VALUE;
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int cx = current.x, cy = current.y;
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for(Point2 p : Geometry.d4){
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int nx = cx + p.x, ny = cy + p.y;
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Tile other = world.tile(nx, ny);
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if(other != null && weights[nx][ny] < minCost && weights[nx][ny] != -1){
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minCost = weights[nx][ny];
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current = other;
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}
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}
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path.add(current);
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if(current.build == core){
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found = true;
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break;
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}
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count ++;
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}
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}
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if(!found){
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path = Astar.pathfind(start, core.tile, SectorDamage::cost, t -> !(t.block().isStatic() && t.solid()));
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}
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//create sparse tile array for fast range query
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int sparseSkip = 5, sparseSkip2 = 3;
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//TODO if this is slow, use a quadtree
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Seq<Tile> sparse = new Seq<>(path.size / sparseSkip + 1);
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Seq<Tile> sparse2 = new Seq<>(path.size / sparseSkip2 + 1);
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for(int i = 0; i < path.size; i++){
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if(i % sparseSkip == 0){
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sparse.add(path.get(i));
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}
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if(i % sparseSkip2 == 0){
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sparse2.add(path.get(i));
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}
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}
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//regen is in health per second
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//dps is per second
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float sumHealth = 0f, sumRps = 0f, sumDps = 0f;
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float totalPathBuild = 0;
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//first, calculate the total health of blocks in the path
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//radius around the path that gets counted
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int radius = 7;
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IntSet counted = new IntSet();
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for(Tile t : sparse2){
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//radius is square.
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for(int dx = -radius; dx <= radius; dx++){
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for(int dy = -radius; dy <= radius; dy++){
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int wx = dx + t.x, wy = dy + t.y;
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if(wx >= 0 && wy >= 0 && wx < world.width() && wy < world.height()){
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Tile tile = world.rawTile(wx, wy);
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if(tile.build != null && tile.team() == state.rules.defaultTeam && counted.add(tile.pos())){
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//health is divided by block size, because multiblocks are counted multiple times.
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sumHealth += tile.build.health / tile.block().size;
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totalPathBuild += 1f / tile.block().size;
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}
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}
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}
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}
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}
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float avgHealth = totalPathBuild <= 1 ? sumHealth : sumHealth / totalPathBuild;
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//block dps + regen + extra health/shields
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for(Building build : Groups.build){
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float e = build.efficiency();
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if(e > 0.08f){
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if(build.team == state.rules.defaultTeam && build instanceof Ranged ranged && sparse.contains(t -> t.within(build, ranged.range() + radius*tilesize))){
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if(build.block instanceof Turret t && build instanceof TurretBuild b && b.hasAmmo()){
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sumDps += t.shots / t.reloadTime * 60f * b.peekAmmo().estimateDPS() * e;
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}
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if(build.block instanceof MendProjector m){
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sumRps += m.healPercent / m.reload * avgHealth * 60f / 100f * e;
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}
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if(build.block instanceof ForceProjector f){
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sumHealth += f.breakage * e;
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sumRps += 1f * e;
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}
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}
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}
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}
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float curEnemyHealth = 0f, curEnemyDps = 0f;
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//unit regen + health + dps
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for(Unit unit : Groups.unit){
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//skip player
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if(unit.isPlayer()) continue;
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if(unit.team == state.rules.defaultTeam){
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//scale health based on armor - yes, this is inaccurate, but better than nothing
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float healthMult = 1f + Mathf.clamp(unit.armor / 20f);
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sumHealth += unit.health*healthMult + unit.shield;
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sumDps += unit.type.dpsEstimate;
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if(unit.abilities.find(a -> a instanceof RepairFieldAbility) instanceof RepairFieldAbility h){
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sumRps += h.amount / h.reload * 60f;
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}
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}else{
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curEnemyDps += unit.type.dpsEstimate;
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curEnemyHealth += unit.health;
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}
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}
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//calculate DPS and health for the next few waves and store in list
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var reg = new LinearRegression();
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Seq<Vec2> waveDps = new Seq<>(), waveHealth = new Seq<>();
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for(int wave = state.wave, i = 0; i < 3; wave += (1 + i++)){
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float sumWaveDps = 0f, sumWaveHealth = 0f;
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//first wave has to take into account current dps
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if(wave == state.wave){
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sumWaveDps += curEnemyDps;
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sumWaveHealth += curEnemyHealth;
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}
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for(SpawnGroup group : state.rules.spawns){
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float healthMult = 1f + Mathf.clamp(group.type.armor / 20f);
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StatusEffect effect = (group.effect == null ? StatusEffects.none : group.effect);
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int spawned = group.getSpawned(wave);
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if(spawned <= 0) continue;
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sumWaveHealth += spawned * (group.getShield(wave) + group.type.health * effect.healthMultiplier * healthMult);
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sumWaveDps += spawned * group.type.dpsEstimate * effect.damageMultiplier;
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}
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waveDps.add(new Vec2(wave, sumWaveDps));
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waveHealth.add(new Vec2(wave, sumWaveHealth));
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}
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//calculate linear regression of the wave data and store it
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reg.calculate(waveHealth);
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info.waveHealthBase = reg.intercept;
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info.waveHealthSlope = reg.slope;
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reg.calculate(waveDps);
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info.waveDpsBase = reg.intercept;
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info.waveDpsSlope = reg.slope;
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//enemy units like to aim for a lot of non-essential things, so increase resulting health slightly
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info.sumHealth = sumHealth * 1.2f;
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//players tend to have longer range units/turrets, so assume DPS is higher
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info.sumDps = sumDps * 1.5f;
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info.sumRps = sumRps;
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//finally, find an equation to put it all together and produce a 0-1 number
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//due to the way most defenses are structured, this number will likely need a ^4 power or so
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}
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public static void apply(float fraction){
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Tiles tiles = world.tiles;
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Queue<Tile> frontier = new Queue<>();
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float[][] values = new float[tiles.width][tiles.height];
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float damage = fraction*80; //arbitrary damage value
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//phase one: find all spawnpoints
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for(Tile tile : tiles){
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if((tile.block() instanceof CoreBlock && tile.team() == state.rules.waveTeam) || tile.overlay() == Blocks.spawn){
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frontier.add(tile);
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values[tile.x][tile.y] = damage;
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}
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}
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Building core = state.rules.defaultTeam.core();
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if(core != null && !frontier.isEmpty()){
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for(Tile spawner : frontier){
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//find path from spawn to core
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Seq<Tile> path = Astar.pathfind(spawner, core.tile, SectorDamage::cost, t -> !(t.block().isStatic() && t.solid()));
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Seq<Building> removal = new Seq<>();
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int radius = 3;
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//only penetrate a certain % by health, not by distance
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float totalHealth = damage >= 1f ? 1f : path.sumf(t -> {
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float s = 0;
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for(int dx = -radius; dx <= radius; dx++){
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for(int dy = -radius; dy <= radius; dy++){
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int wx = dx + t.x, wy = dy + t.y;
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if(wx >= 0 && wy >= 0 && wx < world.width() && wy < world.height() && Mathf.within(dx, dy, radius)){
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Tile other = world.rawTile(wx, wy);
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s += other.team() == state.rules.defaultTeam ? other.build.health / other.block().size : 0f;
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}
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}
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}
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return s;
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});
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float targetHealth = totalHealth * fraction;
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float healthCount = 0;
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out:
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for(int i = 0; i < path.size && (healthCount < targetHealth || damage >= 1f); i++){
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Tile t = path.get(i);
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for(int dx = -radius; dx <= radius; dx++){
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for(int dy = -radius; dy <= radius; dy++){
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int wx = dx + t.x, wy = dy + t.y;
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if(wx >= 0 && wy >= 0 && wx < world.width() && wy < world.height() && Mathf.within(dx, dy, radius)){
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Tile other = world.rawTile(wx, wy);
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//just remove all the buildings in the way - as long as they're not cores
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if(other.build != null && other.team() == state.rules.defaultTeam && !(other.block() instanceof CoreBlock)){
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if(rubble && !other.floor().solid && !other.floor().isLiquid && Mathf.chance(0.4)){
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Effect.rubble(other.build.x, other.build.y, other.block().size);
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}
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//since the whole block is removed, count the whole health
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healthCount += other.build.health;
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removal.add(other.build);
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if(healthCount >= targetHealth && damage < 0.999f){
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break out;
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}
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}
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}
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}
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}
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}
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for(Building r : removal){
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if(r.tile.build == r){
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r.addPlan(false);
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r.tile.remove();
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}
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}
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}
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}
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//kill every core if damage is maximum
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if(fraction >= 1){
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for(Building c : state.rules.defaultTeam.cores().copy()){
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c.tile.remove();
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}
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}
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float falloff = (damage) / (Math.max(tiles.width, tiles.height) * Mathf.sqrt2);
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int peak = 0;
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//phase two: propagate the damage
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while(!frontier.isEmpty()){
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peak = Math.max(peak, frontier.size);
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Tile tile = frontier.removeFirst();
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float currDamage = values[tile.x][tile.y] - falloff;
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for(int i = 0; i < 4; i++){
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int cx = tile.x + Geometry.d4x[i], cy = tile.y + Geometry.d4y[i];
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//propagate to new tiles
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if(tiles.in(cx, cy) && values[cx][cy] < currDamage){
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Tile other = tiles.getn(cx, cy);
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float resultDamage = currDamage;
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//damage the tile if it's not friendly
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if(other.build != null && other.team() != state.rules.waveTeam){
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resultDamage -= other.build.health();
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if(direct){
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other.build.damage(currDamage);
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}else{ //indirect damage happens at game load time
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other.build.health -= currDamage;
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//don't kill the core!
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if(other.block() instanceof CoreBlock) other.build.health = Math.max(other.build.health, 1f);
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//remove the block when destroyed
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if(other.build.health < 0){
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//rubble
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if(rubble && !other.floor().solid && !other.floor().isLiquid && Mathf.chance(0.4)){
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Effect.rubble(other.build.x, other.build.y, other.block().size);
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}
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other.build.addPlan(false);
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other.remove();
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}
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}
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}else if(other.solid() && !other.synthetic()){ //skip damage propagation through solid blocks
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continue;
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}
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if(resultDamage > 0 && values[cx][cy] < resultDamage){
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frontier.addLast(other);
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values[cx][cy] = resultDamage;
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}
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}
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}
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}
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}
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static float cost(Tile tile){
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return 1f +
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(tile.block().isStatic() && tile.solid() ? 200f : 0f) +
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(tile.build != null ? tile.build.health / 40f : 0f) +
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(tile.floor().isLiquid ? 10f : 0f);
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}
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}
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