Class: Engine

Inherits:
Object
  • Object
show all
Defined in:
lib/Engine.rb

Instance Method Summary collapse

Constructor Details

#initialize(prompt, display) ⇒ Engine

Returns a new instance of Engine.



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# File 'lib/Engine.rb', line 6

def initialize(prompt, display)
    @running = false
    @prompt = prompt
    @display = display
end

Instance Method Details

#action_map ⇒ Object 



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# File 'lib/Engine.rb', line 37

def action_map
    {
        'REGENERATE' => Action.new(world.method(:regenerate)),
        'ZOOM_IN' => Action.new(world.method(:zoom_in)),
        'ZOOM_OUT' => Action.new(world.method(:zoom_out)),
        'SCROLL_UP' => Action.new(method(:default_action)),
        'SCROLL_RIGHT' => Action.new(method(:default_action)),
        'SCROLL_DOWN' => Action.new(method(:default_action)),
        'SCROLL_LEFT' => Action.new(method(:default_action)),
        'QUIT' => Action.new(method(:stop)),
    }
end

#default_action ⇒ Object 



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# File 'lib/Engine.rb', line 106

def default_action
    return true
end

#display ⇒ Object 



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# File 'lib/Engine.rb', line 114

def display
    @display
end

#export_to_txt ⇒ Object 



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# File 'lib/Engine.rb', line 96

def export_to_txt
    content = world.render_map_as_text(display.tile_size)

    directory = "exported_worlds"
    extension = 'txt'
    file_name = "#{DateTime.now.strftime('%Y_%m_%d__%H%M%S')}__#{world.name}.txt".gsub!(" ","_")

    TTY::File.create_file("#{directory}/#{file_name}", content)
end

#get_answer ⇒ Object 



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# File 'lib/Engine.rb', line 28

def get_answer
    prompt.select('', action_map.keys, cycle: true)
end

#initialize_key_prompt ⇒ Object 



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# File 'lib/Engine.rb', line 65

def initialize_key_prompt
    prompt.on(:keypress) { |event| 
        event_key = event.value
        event_name = event.key.name
        key_map[event_key].call if key_map.keys.include?(event_key)
        key_map[event_name].call if key_map.keys.include?(event_name)
    }
end

#is_running ⇒ Object 



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# File 'lib/Engine.rb', line 135

def is_running
    @running
end

#is_stopped ⇒ Object 



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# File 'lib/Engine.rb', line 139

def is_stopped
    !is_running
end

#key_map ⇒ Object 



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# File 'lib/Engine.rb', line 50

def key_map
    {
        'q' => Action.new(method(:stop)),
        'r' => Action.new(world.method(:regenerate)),
        'z' => Action.new(world.method(:zoom_in)),
        'x' => Action.new(world.method(:zoom_out)),
        'n' => Action.new(method(:name_world)),
        'e' => Action.new(method(:export_to_txt)),
        :up => Action.new(world.method(:scroll_up)), # scroll up
        :down => Action.new(world.method(:scroll_down)), # scroll down
        :right => Action.new(world.method(:scroll_right)), # scroll right
        :left => Action.new(world.method(:scroll_left)), # scroll left
    }
end

#name_world ⇒ Object 



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# File 'lib/Engine.rb', line 91

def name_world
    new_name = prompt.ask('what do people call this world?')
    world.set_name(new_name)
end

#proccess_answer(answer) ⇒ Object 



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# File 'lib/Engine.rb', line 32

def proccess_answer(answer)
    action = action_map[answer]
    action.call
end

#prompt ⇒ Object 



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# File 'lib/Engine.rb', line 110

def prompt
    @prompt
end

#run ⇒ Object 



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# File 'lib/Engine.rb', line 12

def run
    initialize_key_prompt
    while is_running
        display.draw
        show_key_prompts
    end
end

#run_v1 ⇒ Object 



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# File 'lib/Engine.rb', line 20

def run_v1
    while is_running
        display.draw
        answer = get_answer
        proccess_answer(answer)
    end
end

#show_key_prompts ⇒ Object 



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# File 'lib/Engine.rb', line 74

def show_key_prompts
    prompt.keypress(
        [
            "",
            "-----------------------",
            "r to generate new world",
            "arrow keys to explore",
            "z to zoom in",
            "x to zoom out",
            "n to rename this world",
            "e to save this world in text",
            "q to quit",
            ""
        ].join("\n")
    )
end

#start ⇒ Object 



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# File 'lib/Engine.rb', line 122

def start
    if is_running
        throw "engine already running"
    end

    @running = true
    run
end

#stop ⇒ Object 



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# File 'lib/Engine.rb', line 131

def stop
    @running = false
end

#world ⇒ Object 



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# File 'lib/Engine.rb', line 118

def world
    @display.world
end