module Dare

Constants

Kb0

These are the corresponding character keycodes for keyboard presses e.g. if button_down? Dare::KbDown

player.crouch #or something

end

for convenience, you can “include Dare::Kb” at the top of your main app file (after require ‘dare’), and then refer to these constants directly e.g. if button_down? KbI

open_inventory

end

Kb1

Kb2

Kb3

Kb4

Kb5

Kb6

Kb7

Kb8

Kb9

KbA

KbAlt

KbApostrophe

KbB

KbBackslash

KbBackspace

KbBacktick

KbBracketLeft

KbBracketRight

KbC

KbComma

KbControl

KbD

KbDash

KbDelete

KbDown

KbE

KbEnd

KbEnter

KbEqual

KbEscape

KbF

KbF1

KbF10

KbF11

KbF12

KbF2

KbF3

KbF4

KbF5

KbF6

KbF7

KbF8

KbF9

KbG

KbGraveAccent

KbH

KbHome

KbI

KbInsert

KbJ

KbK

KbL

KbLeft

KbM

KbMinus

KbN

KbNumpad0

KbNumpad1

KbNumpad2

KbNumpad3

KbNumpad4

KbNumpad5

KbNumpad6

KbNumpad7

KbNumpad8

KbNumpad9

KbNumpadAdd

KbNumpadDivide

KbNumpadMultiply

KbNumpadSubtract

KbO

KbP

KbPageDown

KbPageUp

KbPeriod

KbQ

KbR

KbReturn

KbRight

KbS

KbSemicolon

KbShift

KbSlash

KbSpace

KbT

KbTab

KbTilde

KbU

KbUp

KbV

KbW

KbX

KbY

KbZ

VERSION

returns the current version of this gem

Attributes

default_canvas[RW]

Public Class Methods

distance(x1, y1, x2, y2) click to toggle source

# File lib/dare.rb, line 41
def self.distance(x1, y1, x2, y2)
  `Math.sqrt((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1))`
end

ms() click to toggle source

returns the number of milliseconds since the Unix epoch useful for delta physics

# File lib/dare.rb, line 37
def self.ms
  `(new Date()).getTime()`
end

offset_x(angle, magnitude) click to toggle source

returns the magnitude of the horizontal component of a vector at some angle and some magnitude where the angle is in degrees starting on the unit circle pointing to the right and going counterclockwise e.g. Dare.offset_x(90, 10) # returns 0 Dare.offset_x(45, 10) # returns 10 times the square root of 2

# File lib/dare.rb, line 18
def self.offset_x(angle, magnitude)
  `#{magnitude}*Math.cos(-#{angle}*Math.PI/180.0)`
end

offset_y(angle, magnitude) click to toggle source

returns the magnitude of the vertical component of a vector at some angle and some magnitude where the angle is in degrees starting on the unit circle pointing to the right and going counterclockwise e.g. Dare.offset_y(90, 10) # returns 10 Dare.offset_y(45, 10) # returns 10 times the square root of 2

# File lib/dare.rb, line 30
def self.offset_y(angle, magnitude)
  `#{magnitude}*Math.sin(-#{angle}*Math.PI/180.0)`
end