first commmit

tests/logic/DamageSystem.test.ts

@@ -0,0 +1,86 @@
+import { DamageSystem, FIREBALL_KILL_RADIUS, SMOKE_KILL_RADIUS } from '@logic/DamageSystem';
+import { PlayerStateMachine } from '@logic/PlayerStateMachine';
+import { PlayerColorState } from '@common/Constants';
+
+function setup() {
+    const psm = new PlayerStateMachine();
+    return { psm, ds: new DamageSystem(psm) };
+}
+
+describe('DamageSystem — fireball distance gate (req 10.4)', () => {
+    it('misses when distance exceeds FIREBALL_KILL_RADIUS', () => {
+        const { ds } = setup();
+        const r = ds.applyToPlayer({
+            attackType: 'fireball',
+            attackerX: 0,
+            attackerY: 0,
+            victimX: FIREBALL_KILL_RADIUS + 10,
+            victimY: 0,
+        });
+        expect(r).toBeNull();
+    });
+
+    it('kills when within radius regardless of color', () => {
+        const { psm, ds } = setup();
+        psm.pickupCrystalJade();
+        psm.pickupCrystalJade();
+        const r = ds.applyToPlayer({
+            attackType: 'fireball',
+            attackerX: 0,
+            attackerY: 0,
+            victimX: 50,
+            victimY: 0,
+        });
+        expect(r!.kind).toBe('died');
+        expect(psm.color).toBe(PlayerColorState.Red);
+    });
+});
+
+describe('DamageSystem — smoke bomb distance gate (req 10.5)', () => {
+    it('misses when distance exceeds SMOKE_KILL_RADIUS', () => {
+        const { ds } = setup();
+        const r = ds.applyToPlayer({
+            attackType: 'smoke_bomb',
+            attackerX: 0,
+            attackerY: 0,
+            victimX: SMOKE_KILL_RADIUS + 1,
+            victimY: 0,
+        });
+        expect(r).toBeNull();
+    });
+
+    it('kills when within radius', () => {
+        const { ds } = setup();
+        const r = ds.applyToPlayer({
+            attackType: 'smoke_bomb',
+            attackerX: 0,
+            attackerY: 0,
+            victimX: 40,
+            victimY: 0,
+        });
+        expect(r!.kind).toBe('died');
+    });
+});
+
+describe('DamageSystem — precedence (req 10.3)', () => {
+    it('i-frames beat fireball distance check', () => {
+        const { psm, ds } = setup();
+        psm.takeHit('shuriken'); // die → consumes a life and starts i-frames
+        const r = ds.applyToPlayer({
+            attackType: 'fireball',
+            attackerX: 0,
+            attackerY: 0,
+            victimX: 10,
+            victimY: 0,
+        });
+        expect(r).toEqual({ kind: 'no_effect', reason: 'iframe' });
+    });
+});
+
+describe('DamageSystem — applyToEnemy helper', () => {
+    it('reduces HP and floors at 0', () => {
+        const { ds } = setup();
+        expect(ds.applyToEnemy(3, 2)).toBe(1);
+        expect(ds.applyToEnemy(1, 5)).toBe(0);
+    });
+});