# 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.
game 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
    }
  }

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

  system 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() }
  }

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