From ffcdb8b126c5267040ddc8f0304b153fa88755e5 Mon Sep 17 00:00:00 2001
From: Kai Stevenson <kai@kaistevenson.com>
Date: Sat, 28 Jun 2025 18:41:15 -0700
Subject: local play, some physics

---
 src/state/const.ts | 11 +++++++++++
 src/state/index.ts | 31 +++++++++++++++++++++++++++++++
 src/state/types.ts | 25 +++++++++++++++++++++++++
 3 files changed, 67 insertions(+)
 create mode 100644 src/state/const.ts
 create mode 100644 src/state/index.ts
 create mode 100644 src/state/types.ts

(limited to 'src/state')

diff --git a/src/state/const.ts b/src/state/const.ts
new file mode 100644
index 0000000..caac8ce
--- /dev/null
+++ b/src/state/const.ts
@@ -0,0 +1,11 @@
+export const GAME_SIZE = {
+  rows: 20,
+  cols: 20,
+};
+
+export const INITIAL_PADDLE_POSITION = 10;
+
+export const PADDLE_WIDTH = 3;
+export const PADDLE_HEIGHT = 1;
+
+export const NUM_STARTING_BALLS = 2;
diff --git a/src/state/index.ts b/src/state/index.ts
new file mode 100644
index 0000000..03d218f
--- /dev/null
+++ b/src/state/index.ts
@@ -0,0 +1,31 @@
+import { GAME_SIZE, NUM_STARTING_BALLS } from "./const";
+import { Ball, GameState, SessionState } from "./types";
+
+export * from "./const";
+export * from "./types";
+
+const createRandomBall = (): Ball => ({
+  position: [
+    GAME_SIZE.cols / 4 + (Math.random() * GAME_SIZE.cols) / 2,
+    GAME_SIZE.rows / 4 + (Math.random() * GAME_SIZE.rows) / 2,
+  ],
+  velocity: [-1 + Math.random() * 2, 0.5 + Math.random()],
+});
+
+const createGameState = () =>
+  ({
+    paddle: { position: [0, GAME_SIZE.rows - 1] },
+    balls: new Array(NUM_STARTING_BALLS)
+      .fill(undefined)
+      .map(() => createRandomBall()),
+    bricks: new Array(GAME_SIZE.cols * 5).fill(undefined).map((_, i) => ({
+      position: [i % GAME_SIZE.cols, Math.floor(i / GAME_SIZE.cols)],
+    })),
+  } satisfies GameState);
+
+export const createSessionState = (sessionId: string) =>
+  ({
+    sessionId,
+    localPlayerGameState: createGameState(),
+    remotePlayerGameState: createGameState(),
+  } satisfies SessionState);
diff --git a/src/state/types.ts b/src/state/types.ts
new file mode 100644
index 0000000..202e65e
--- /dev/null
+++ b/src/state/types.ts
@@ -0,0 +1,25 @@
+export type Paddle = {
+  position: [number, number];
+};
+
+export type Ball = {
+  //float positions
+  position: [number, number];
+  velocity: [number, number];
+};
+
+export type Brick = {
+  position: [number, number];
+};
+
+export type GameState = {
+  paddle: Paddle;
+  balls: Ball[];
+  bricks: Brick[];
+};
+
+export type SessionState = {
+  sessionId: string;
+  localPlayerGameState: GameState;
+  remotePlayerGameState: GameState;
+};
-- 
cgit v1.2.3-70-g09d2