114 lines
3.1 KiB
Dart
114 lines
3.1 KiB
Dart
import 'dart:math' as math;
|
|
|
|
import 'package:wolf_dart/classes/coordinate_2d.dart';
|
|
import 'package:wolf_dart/features/entities/enemies/enemy.dart';
|
|
import 'package:wolf_dart/features/entities/entity.dart';
|
|
|
|
class Dog extends Enemy {
|
|
static const double speed = 0.05; // Dogs are much faster than guards!
|
|
bool _hasBittenThisCycle = false;
|
|
|
|
Dog({
|
|
required super.x,
|
|
required super.y,
|
|
required super.angle,
|
|
required super.mapId,
|
|
}) : super(
|
|
spriteIndex: 99, // Dogs start at index 99 in VSWAP
|
|
state: EntityState.idle,
|
|
);
|
|
|
|
static Dog? trySpawn(int objId, double x, double y, int difficultyLevel) {
|
|
bool canSpawn = false;
|
|
switch (difficultyLevel) {
|
|
case 0:
|
|
canSpawn = objId >= 116 && objId <= 119;
|
|
break;
|
|
case 1:
|
|
canSpawn = objId >= 152 && objId <= 155;
|
|
break;
|
|
case 2:
|
|
canSpawn = objId >= 188 && objId <= 191;
|
|
break;
|
|
case 3:
|
|
canSpawn = objId >= 224 && objId <= 227;
|
|
break;
|
|
}
|
|
|
|
if (canSpawn) {
|
|
return Dog(
|
|
x: x,
|
|
y: y,
|
|
angle: Enemy.getInitialAngle(objId),
|
|
mapId: objId,
|
|
);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
@override
|
|
({Coordinate2D movement, double newAngle}) update({
|
|
required int elapsedMs,
|
|
required Coordinate2D playerPosition,
|
|
required bool Function(int x, int y) isWalkable,
|
|
required void Function(int damage) onDamagePlayer,
|
|
}) {
|
|
Coordinate2D movement = const Coordinate2D(0, 0);
|
|
double newAngle = angle;
|
|
|
|
if (state == EntityState.idle &&
|
|
hasLineOfSight(playerPosition, isWalkable)) {
|
|
state = EntityState.patrolling;
|
|
lastActionTime = elapsedMs;
|
|
}
|
|
|
|
double distance = position.distanceTo(playerPosition);
|
|
double angleToPlayer = position.angleTo(playerPosition);
|
|
|
|
if (state == EntityState.patrolling || state == EntityState.shooting) {
|
|
newAngle = angleToPlayer;
|
|
}
|
|
|
|
double diff = newAngle - angleToPlayer;
|
|
while (diff <= -math.pi) {
|
|
diff += 2 * math.pi;
|
|
}
|
|
while (diff > math.pi) {
|
|
diff -= 2 * math.pi;
|
|
}
|
|
int octant = ((diff + (math.pi / 8)) / (math.pi / 4)).floor() % 8;
|
|
if (octant < 0) octant += 8;
|
|
|
|
if (state == EntityState.idle) {
|
|
spriteIndex = 99 + octant;
|
|
} else if (state == EntityState.patrolling) {
|
|
if (distance > 0.8) {
|
|
movement = Coordinate2D(math.cos(newAngle), math.sin(newAngle)) * speed;
|
|
}
|
|
|
|
int walkFrame = (elapsedMs ~/ 100) % 4;
|
|
spriteIndex = 107 + (walkFrame * 8) + octant;
|
|
|
|
if (distance < 1.0 && elapsedMs - lastActionTime > 1000) {
|
|
state = EntityState.shooting;
|
|
lastActionTime = elapsedMs;
|
|
_hasBittenThisCycle = false;
|
|
}
|
|
} else if (state == EntityState.shooting) {
|
|
int timeAttacking = elapsedMs - lastActionTime;
|
|
if (timeAttacking < 200) {
|
|
spriteIndex = 139;
|
|
if (!_hasBittenThisCycle) {
|
|
onDamagePlayer(5); // DOG BITE
|
|
_hasBittenThisCycle = true;
|
|
}
|
|
} else {
|
|
state = EntityState.patrolling;
|
|
lastActionTime = elapsedMs;
|
|
}
|
|
}
|
|
|
|
return (movement: movement, newAngle: newAngle);
|
|
}
|
|
}
|