rts-prototype

Pure-RTS composer-demo integrating the P.3.4-P.3.7 libs (camera free-pan, input actions, selection, command). 8 units in 3 speed-classes on a 20x20 tile-map; LMB selects, RMB moves.

Version: 0.1.4
Module-ID: rts-prototype
Requires: lib-core.maps v0.5.7, lib-core.render v0.2.0, lib-core.composition v0.3.0, lib-core.camera v0.3.0, lib-core.input v0.4.0, lib-core.selection v0.1.0, lib-core.command v0.1.0
Tags: rts, tech-demo, composition

Topology

graph LR
  this["rts-prototype"]
  lib_core_maps["lib-core.maps"]
  this --> lib_core_maps
  lib_core_render["lib-core.render"]
  this --> lib_core_render
  lib_core_camera["lib-core.camera"]
  this --> lib_core_camera
  lib_core_input["lib-core.input"]
  this --> lib_core_input
  lib_core_selection["lib-core.selection"]
  this --> lib_core_selection
  lib_core_command["lib-core.command"]
  this --> lib_core_command
  engine["engine.*"]
  this --> engine

Controls

• LMB-Click: Select a unit
• LMB-Drag: Box-select multiple units
• Shift+LMB: Add to selection
• Ctrl+LMB: Toggle unit in selection
• RMB-Click: Move selected units to clicked map-position
• WASD / Arrows: Pan camera
• Mouse-Edge: Edge-scroll camera
• Middle-Drag: Pan camera by dragging
• ESC: Return to launcher

Demonstrates

• Pure-composition module: no game-logic libs, just maps + render + camera + input + selection + command wired together.
• 8 units in 3 speed-classes (red=100, brown=150, yellow=200 px/s) clustered in the left half of a 20x20 map; speed-variation visible on cross-map moves.
• Direct-line move (no pathfinding — units walk through wall-clusters; pathfinding deferred to P.4).
• Free-pan camera with all three pan-sources (keys, edge-scroll, middle-drag) simultaneously enabled.
• engine.switch_module("lib-management.launcher") on ESC to return to the launcher chooser.

Interactions

The selection -> command bridge is a one-line target-provider registration. command does not know about selection; the module wires them together:

command.bind_move_action("rmb")
command.bind_target_provider(function() return selection.list() end)

Camera setup composes all three pan-sources at once, then camera.update(dt) sums them per-frame:

camera.bind_pan_keys("pan_left", "pan_right", "pan_up", "pan_down")
camera.bind_pan_drag("pan_drag")
camera.enable_pan_edge()

References

• meta/docs/superpowers/specs/2026-05-14-p3-8-rts-prototype-design.md
• meta/docs/architecture/lib-composition.md