Module: Dare

Defined in:
lib/dare.rb,
lib/dare/font.rb,
lib/dare/image.rb,
lib/dare/sound.rb,
lib/dare/canvas.rb,
lib/dare/sprite.rb,
lib/dare/window.rb,
lib/dare/keyboard_constants.rb

Defined Under Namespace

Modules: Kb Classes: Canvas, Color, Coordinates, Font, Image, ImageTile, Sound, Sprite, Window

Constant Summary collapse

VERSION =

returns the current version of this gem

"0.2.0"
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

48
Kb1 = 
49
Kb2 = 
50
Kb3 = 
51
Kb4 = 
52
Kb5 = 
53
Kb6 = 
54
Kb7 = 
55
Kb8 = 
56
Kb9 = 
57
KbA = 
65
KbB = 
66
KbC = 
67
KbD = 
68
KbE = 
69
KbF = 
70
KbG = 
71
KbH = 
72
KbI = 
73
KbJ = 
74
KbK = 
75
KbL = 
76
KbM = 
77
KbN = 
78
KbO = 
79
KbP = 
80
KbQ = 
81
KbR = 
82
KbS = 
83
KbT = 
84
KbU = 
85
KbV = 
86
KbW = 
87
KbX = 
88
KbY = 
89
KbZ = 
90
KbBackspace = 
8
KbDelete = 
46
KbDown = 
40
KbEnd = 
35
KbEnter = 
13
KbReturn = 
13
KbEscape = 
27
KbF1 = 
112
KbF2 = 
113
KbF3 = 
114
KbF4 = 
115
KbF5 = 
116
KbF6 = 
117
KbF7 = 
118
KbF8 = 
119
KbF9 = 
120
KbF10 = 
121
KbF11 = 
122
KbF12 = 
123
KbSpace = 
32
KbPageUp = 
33
KbPageDown = 
34
KbHome = 
36
KbLeft = 
37
KbUp = 
38
KbRight = 
39
KbInsert = 
45
KbShift = 
16
KbControl = 
17
KbAlt = 
18
KbNumpad0 = 
96
KbNumpad1 = 
97
KbNumpad2 = 
98
KbNumpad3 = 
99
KbNumpad4 = 
100
KbNumpad5 = 
101
KbNumpad6 = 
102
KbNumpad7 = 
103
KbNumpad8 = 
104
KbNumpad9 = 
105
KbNumpadMultiply = 
106
KbNumpadAdd = 
107
KbNumpadSubtract = 
109
KbNumpadDivide = 
111
KbTab = 
9
KbBacktick = 
192
KbTilde = 
192
KbGraveAccent = 
192
KbMinus = 
189
KbDash = 
189
KbEqual = 
187
KbBracketLeft = 
219
KbBracketRight = 
221
KbBackslash = 
220
KbSemicolon = 
186
KbApostrophe = 
222
KbComma = 
188
KbPeriod = 
190
KbSlash = 
191

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.default_canvas ⇒ Object

Returns the value of attribute default_canvas.



46
47
48
 
# File 'lib/dare.rb', line 46

def default_canvas
  @default_canvas
end

Class Method Details

.distance(x1, y1, x2, y2) ⇒ Object 



41
42
43
 
# 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 ⇒ Object

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



37
38
39
 
# File 'lib/dare.rb', line 37

def self.ms
  `(new Date()).getTime()`
end

.offset_x(angle, magnitude) ⇒ Object

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



18
19
20
 
# 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) ⇒ Object

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



30
31
32
 
# File 'lib/dare.rb', line 30

def self.offset_y(angle, magnitude)
  `#{magnitude}*Math.sin(-#{angle}*Math.PI/180.0)`
end