Add levelling up mechanics through experience gained via killing enemies

src/scenes/__tests__/GameScene.test.ts

@@ -61,7 +61,8 @@ vi.mock('phaser', () => {
 vi.mock('../../rendering/DungeonRenderer', () => ({
   DungeonRenderer: vi.fn().mockImplementation(function() {
     return {
-      initializeLevel: vi.fn(),
+      initializeFloor: vi.fn(),
+
       computeFov: vi.fn(),
       render: vi.fn(),
       showDamage: vi.fn(),
@@ -78,7 +79,8 @@ vi.mock('../../engine/simulation/simulation', () => ({
 }));
 
 vi.mock('../../engine/world/generator', () => ({
-  makeTestWorld: vi.fn(),
+  generateWorld: vi.fn(),
+
 }));
 
 vi.mock('../../engine/world/world-logic', () => ({
@@ -133,7 +135,8 @@ describe('GameScene', () => {
     };
     mockWorld.actors.set(1, mockPlayer);
 
-    (generator.makeTestWorld as any).mockReturnValue({
+    (generator.generateWorld as any).mockReturnValue({
+
       world: mockWorld,
       playerId: 1,
     });
@@ -170,7 +173,8 @@ describe('GameScene', () => {
     
     // Verify it was called with some stats
     const callArgs = mockUI.showDeathScreen.mock.calls[0][0];
-    expect(callArgs).toHaveProperty('level');
+    expect(callArgs).toHaveProperty('floor');
+
     expect(callArgs).toHaveProperty('gold');
     expect(callArgs).toHaveProperty('stats');
   });