108 lines
3.2 KiB
Dart
108 lines
3.2 KiB
Dart
import 'dart:math' as math;
|
|
|
|
import 'package:wolf_dart/classes/enemy.dart';
|
|
import 'package:wolf_dart/classes/entity.dart';
|
|
import 'package:wolf_dart/classes/linear_coordinates.dart';
|
|
|
|
class BrownGuard extends Enemy {
|
|
static const double speed = 0.03;
|
|
bool _hasFiredThisCycle = false;
|
|
|
|
BrownGuard({
|
|
required super.x,
|
|
required super.y,
|
|
required super.angle,
|
|
required super.mapId,
|
|
}) : super(
|
|
spriteIndex: 50, // Default front-facing idle
|
|
state: EntityState.idle,
|
|
);
|
|
|
|
@override
|
|
void update({
|
|
required int elapsedMs,
|
|
required LinearCoordinates player,
|
|
required bool Function(int x, int y) isWalkable,
|
|
required bool Function(Entity entity) hasLineOfSight,
|
|
required void Function(int damage) onDamagePlayer,
|
|
}) {
|
|
// 1. Wake up if the player is spotted!
|
|
if (state == EntityState.idle) {
|
|
if (hasLineOfSight(this)) {
|
|
state = EntityState.patrolling;
|
|
lastActionTime = elapsedMs;
|
|
}
|
|
}
|
|
|
|
// 2. State-based Logic & Animation
|
|
if (state == EntityState.idle ||
|
|
state == EntityState.patrolling ||
|
|
state == EntityState.shooting) {
|
|
double dx = player.x - x;
|
|
double dy = player.y - y;
|
|
double distance = math.sqrt(dx * dx + dy * dy);
|
|
double angleToPlayer = math.atan2(dy, dx);
|
|
|
|
if (state == EntityState.patrolling || state == EntityState.shooting) {
|
|
angle = angleToPlayer;
|
|
}
|
|
|
|
double diff = angle - 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 = 50 + octant;
|
|
} else if (state == EntityState.patrolling) {
|
|
// A. Move towards the player
|
|
if (distance > 0.8) {
|
|
double moveX = x + math.cos(angle) * speed;
|
|
double moveY = y + math.sin(angle) * speed;
|
|
|
|
if (isWalkable(moveX.toInt(), y.toInt())) x = moveX;
|
|
if (isWalkable(x.toInt(), moveY.toInt())) y = moveY;
|
|
}
|
|
|
|
// B. Animate the walk cycle
|
|
int walkFrame = (elapsedMs ~/ 150) % 4;
|
|
spriteIndex = 58 + (walkFrame * 8) + octant;
|
|
|
|
// C. Decide to shoot!
|
|
if (distance < 5.0 && elapsedMs - lastActionTime > 2000) {
|
|
if (hasLineOfSight(this)) {
|
|
state = EntityState.shooting;
|
|
lastActionTime = elapsedMs;
|
|
_hasFiredThisCycle = false; // Arm the weapon
|
|
}
|
|
}
|
|
} else if (state == EntityState.shooting) {
|
|
int timeShooting = elapsedMs - lastActionTime;
|
|
|
|
if (timeShooting < 150) {
|
|
spriteIndex = 96; // Aiming
|
|
} else if (timeShooting < 300) {
|
|
spriteIndex = 97; // BANG!
|
|
|
|
// DEAL DAMAGE ONCE!
|
|
if (!_hasFiredThisCycle) {
|
|
onDamagePlayer(10); // 10 damage per shot
|
|
_hasFiredThisCycle = true;
|
|
}
|
|
} else if (timeShooting < 450) {
|
|
spriteIndex = 98; // Recoil
|
|
} else {
|
|
state = EntityState.patrolling;
|
|
lastActionTime = elapsedMs;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|