tiamat.rb

require 'ruby2d'

BUILD = :DEVELOPMENT
set title:       'Tiamat',
    background:  'blue',
    width:       640,       viewport_width:  640,
    height:      480,       viewport_height: 480,
    resizable:   false,
    borderless:  BUILD == :PRODUCTION,
    fullscreen:  BUILD == :PRODUCTION,
    diagnostics: BUILD != :PRODUCTION

TILE_WIDTH   = TILE_HEIGHT = 64
TILE_PADDING = 1

def sanitize_config
  if get(:height) % TILE_HEIGHT > 0
    puts "[Debug] Resizing window height"
    new_height = get(:height) - (get(:height) % TILE_HEIGHT)
    set height:          new_height,
        viewport_height: new_height
  end

  if get(:width) % TILE_WIDTH > 0
    puts "[Debug] Resizing window width"
    new_width = get(:height) - (get(:height) % TILE_HEIGHT)
    set height:         new_width,
        viewport_width: new_width
  end
end

def draw_grid
  (TILE_PADDING..(get :height)).step(TILE_HEIGHT).each do |y|
    (TILE_PADDING..(get :width)).step(TILE_WIDTH).each do |x|
      s = Square.new(x: x, y: y, size: TILE_WIDTH - TILE_PADDING)
      s.color = 'random'
    end
  end
end

def draw_ui

end

def initial_setup
  sanitize_config
  draw_grid
  draw_ui
end

def every_second(tick)
  yield if tick % 60 == 0
end

tick = 0

# Game loop
initial_setup
update do
  every_second(tick) do
    set background: 'random'
  end

  clear
  draw_grid

  tick += 1
end

on :key_down do |event|
  if %w(up down left right).include?(event.key)
    # move
  end
end

# Gettables:
# - :window (obj), :frames (since start), :fps, :mouse_x, :mouse_y

# Other interesting methods
# - close: close the window


show

# Triangle.new(
#   x1: 320, y1:  50,
#   x2: 540, y2: 430,
#   x3: 100, y3: 430,
#   color: ['red', 'green', 'blue']
# )