Copperfall

Copperfall Engine Overview

Copperfall is currently in heavy development. This outline captures the structure I’ll expand into a full case study once the vertical slice is ready.

Goals

Build a lightweight 2D engine in pure JavaScript without external frameworks.
Support an entity-component-system (ECS) loop, deterministic updates, and responsive input.
Ship a small narrative-driven prototype on top of the engine.

Planned Sections

Renderer — batching sprites, parallax layers, screen shake, and post-processing.
Simulation — fixed timestep loop, ECS scheduling, collision primitives.
Tooling — map editor experiments, asset pipeline, debug HUD.
Narrative layer — dialogue runner, scripting hooks, save system.

Copperfall concept render — Concept art stand-in until in-engine captures are ready.

Notebook Excerpt

// main loop draft (subject to change)
const STEP = 1000 / 60
let accumulator = 0
let last = performance.now()

function tick(now) {
accumulator += now - last
last = now

while (accumulator >= STEP) {
  world.update(STEP)
  accumulator -= STEP
}

world.render(ctx)
requestAnimationFrame(tick)
}

requestAnimationFrame(tick)

Next Steps

Capture footage of the ECS debugger overlay once the UI is stable.
Write up the level streaming approach and asset packing pipeline.
Post a build for early playtesting feedback.

Follow Development

Copperfall Engine Overview

Copperfall is currently in heavy development. This outline captures the structure I’ll expand into a full case study once the vertical slice is ready.

Goals

Build a lightweight 2D engine in pure JavaScript without external frameworks.
Support an entity-component-system (ECS) loop, deterministic updates, and responsive input.
Ship a small narrative-driven prototype on top of the engine.

Planned Sections

Renderer — batching sprites, parallax layers, screen shake, and post-processing.
Simulation — fixed timestep loop, ECS scheduling, collision primitives.
Tooling — map editor experiments, asset pipeline, debug HUD.
Narrative layer — dialogue runner, scripting hooks, save system.

Notebook Excerpt

// main loop draft (subject to change)
const STEP = 1000 / 60
let accumulator = 0
let last = performance.now()

function tick(now) {
accumulator += now - last
last = now

while (accumulator >= STEP) {
  world.update(STEP)
  accumulator -= STEP
}

world.render(ctx)
requestAnimationFrame(tick)
}

requestAnimationFrame(tick)

Next Steps

Capture footage of the ECS debugger overlay once the UI is stable.
Write up the level streaming approach and asset packing pipeline.
Post a build for early playtesting feedback.

Follow Development

Copperfall

Quick Stats

Links

Goals

Planned Sections

Notebook Excerpt

Next Steps

Curious what others see or think

Copperfall

Quick Stats

Links

Goals

Planned Sections

Notebook Excerpt

Next Steps

Curious what others see or think