Sam anti nuke missile launcher (#176)

now with better name --------- Co-authored-by: evanpelle <evanpelle@gmail.com>
2026-07-21 08:56:07 +00:00 · 2025-03-09 13:25:51 -07:00
parent fe9a73c967
commit 84951fed9f
10 changed files with 313 additions and 0 deletions
@@ -0,0 +1,104 @@
+import {
+  Execution,
+  Game,
+  MessageType,
+  Player,
+  Unit,
+  UnitType,
+} from "../game/Game";
+import { PathFinder } from "../pathfinding/PathFinding";
+import { PathFindResultType } from "../pathfinding/AStar";
+import { consolex } from "../Consolex";
+import { TileRef } from "../game/GameMap";
+
+export class SAMMissileExecution implements Execution {
+  private active = true;
+  private pathFinder: PathFinder;
+  private SAMMissile: Unit;
+
+  constructor(
+    private spawn: TileRef,
+    private _owner: Player,
+    private ownerUnit: Unit,
+    private target: Unit,
+    private mg: Game,
+    private pseudoRandom: number,
+    private speed: number = 6,
+    private hittingChance: number = 0.75,
+  ) {}
+
+  init(mg: Game, ticks: number): void {
+    this.pathFinder = PathFinder.Mini(mg, 2000, true, 10);
+  }
+
+  tick(ticks: number): void {
+    if (this.SAMMissile == null) {
+      this.SAMMissile = this._owner.buildUnit(
+        UnitType.SAMMissile,
+        0,
+        this.spawn,
+      );
+    }
+    if (!this.SAMMissile.isActive()) {
+      this.active = false;
+      return;
+    }
+    if (
+      !this.target.isActive() ||
+      !this.ownerUnit.isActive() ||
+      this.target.owner() == this.SAMMissile.owner()
+    ) {
+      this.SAMMissile.delete(false);
+      this.active = false;
+      return;
+    }
+    for (let i = 0; i < this.speed; i++) {
+      const result = this.pathFinder.nextTile(
+        this.SAMMissile.tile(),
+        this.target.tile(),
+        3,
+      );
+      switch (result.type) {
+        case PathFindResultType.Completed:
+          this.active = false;
+          if (this.pseudoRandom < this.hittingChance) {
+            this.target.delete();
+
+            this.mg.displayMessage(
+              `Missile succesfully intercepted ${this.target.type()}`,
+              MessageType.SUCCESS,
+              this._owner.id(),
+            );
+          } else {
+            this.mg.displayMessage(
+              `Missile failed to intercept ${this.target.type()}`,
+              MessageType.ERROR,
+              this._owner.id(),
+            );
+          }
+          this.SAMMissile.delete(false);
+          return;
+        case PathFindResultType.NextTile:
+          this.SAMMissile.move(result.tile);
+          break;
+        case PathFindResultType.Pending:
+          return;
+        case PathFindResultType.PathNotFound:
+          consolex.log(`Missile ${this.SAMMissile} could not find target`);
+          this.active = false;
+          this.SAMMissile.delete(false);
+          return;
+      }
+    }
+  }
+
+  owner(): Player {
+    return null;
+  }
+  isActive(): boolean {
+    return this.active;
+  }
+  activeDuringSpawnPhase(): boolean {
+    return false;
+  }
+}