# menu.ludic — a retained-UI title screen. The UI is declared as DATA (the `ui`
# block); the engine lays it out (stacked panel, padding/gap/alignment), draws
# it (background, TrueType labels, focusable buttons), and routes keyboard focus
# and activation. The game only loads a font, opens the UI, and reads clicks.
program Menu {

  const R_FONT: int = 0
  const R_MSG:  int = 1

  ui MainMenu {
    panel id: Root w: 288 pad: 16 gap: 6 bg: 0x1a1a2c border: 0x4a4a72 skin: "assets/ui/panel.png" inset: 10 align: center {
      label text: "CHRONO RIFT" font: reg(R_FONT) size: 26 fg: 0xffe060 align: center
      label text: "a Ludic retained-UI demo" font: reg(R_FONT) size: 14 fg: 0x9aa0c8 align: center
      spacer h: 4
      button id: NewGame  text: "New Game" font: reg(R_FONT) size: 16 w: 236
      button id: Continue text: "Continue" font: reg(R_FONT) size: 16 w: 236
      button id: Options  text: "Options"  font: reg(R_FONT) size: 16 w: 236
      button id: Quit     text: "Quit"     font: reg(R_FONT) size: 16 w: 236
    }
  }

  handler Boot phase Start {
    set_reg(R_FONT, font_load("/System/Library/Fonts/Supplemental/Arial.ttf"))
    ui_build()
    ui_open(UI_MainMenu)
  }

  handler Nav phase Update {
    ui_tick(key())
    if ui_clicked(UI_NewGame)  { ui_set_text(UI_NewGame, "Starting...") }
    if ui_clicked(UI_Continue) { ui_set_text(UI_Continue, "No save") }
    if ui_clicked(UI_Options)  { ui_set_text(UI_Options, "Soon (TM)") }
    if ui_clicked(UI_Quit)     { quit() }
  }

  handler Draw phase Render {
    clear(0x0e0e16)
    ui_render()
    present()
  }
}