Add basic gameobject system

frontend/src/scripts/commands/command.ts

@@ -1,3 +1,6 @@
 import { Typed } from '../transport/serializable';
+import { Id } from '../identity/identity';
 
-export abstract class Command extends Typed {}
+export abstract class Command extends Typed {
+  target?: Id;
+}

frontend/src/scripts/commands/types/draw.ts

@@ -0,0 +1,8 @@
+import { Drawer } from '../../drawing/drawer';
+import { Command } from '../command';
+
+export class DrawCommand extends Command {
+  public constructor(public readonly drawer?: Drawer) {
+    super();
+  }
+}

frontend/src/scripts/commands/types/key-down.ts

@@ -1,7 +1,7 @@
 import { Command } from '../command';
 
 export class KeyDownCommand extends Command {
-  public constructor(public readonly key: string) {
+  public constructor(public readonly key?: string) {
     super();
   }
 }

frontend/src/scripts/commands/types/key-up.ts

@@ -1,7 +1,7 @@
 import { Command } from '../command';
 
 export class KeyUpCommand extends Command {
-  public constructor(public readonly key: string) {
+  public constructor(public readonly key?: string) {
     super();
   }
 }

frontend/src/scripts/commands/types/move-to.ts

@@ -0,0 +1,9 @@
+import { Drawer } from '../../drawing/drawer';
+import { Command } from '../command';
+import { Vec2 } from '../../math/vec2';
+
+export class MoveToCommand extends Command {
+  public constructor(public readonly position?: Vec2) {
+    super();
+  }
+}

frontend/src/scripts/commands/types/primary-action.ts

@@ -2,7 +2,7 @@ import { Command } from '../command';
 import { Vec2 } from '../../math/vec2';
 
 export class PrimaryActionCommand extends Command {
-  public constructor(public readonly position: Vec2) {
+  public constructor(public readonly position?: Vec2) {
     super();
   }
 }

frontend/src/scripts/commands/types/secondary-action.ts

@@ -2,7 +2,7 @@ import { Command } from '../command';
 import { Vec2 } from '../../math/vec2';
 
 export class SecondaryActionCommand extends Command {
-  public constructor(public readonly position: Vec2) {
+  public constructor(public readonly position?: Vec2) {
     super();
   }
 }

frontend/src/scripts/commands/types/step.ts

@@ -0,0 +1,9 @@
+import { Command } from '../command';
+
+export class StepCommand extends Command {
+  public constructor(
+    public readonly deltaTimeInMiliseconds?: DOMHighResTimeStamp
+  ) {
+    super();
+  }
+}

frontend/src/scripts/commands/types/swipe.ts

@@ -2,7 +2,7 @@ import { Command } from '../command';
 import { Vec2 } from '../../math/vec2';
 
 export class SwipeCommand extends Command {
-  public constructor(public readonly delta: Vec2) {
+  public constructor(public readonly delta?: Vec2) {
     super();
   }
 }