#==============================================================================
# ■ Input
#------------------------------------------------------------------------------
# 处理游戏手柄和键盘输入信息的模块。
#==============================================================================
module Input
DOWN=2
LEFT=4
RIGHT=6
UP=8
A=11
B=12
C=13
X=14
Y=15
Z=16
L=17
R=18
SHIFT=21
CTRL=22
ALT=23
F5=25
F6=26
F7=27
F8=28
F9=29
#--------------------------------------------------------------------------
# GetAsyncKeyState or GetKeyState will work here
#--------------------------------------------------------------------------
@GetKeyState=Win32API.new("user32", "GetAsyncKeyState", "i", "i")
#--------------------------------------------------------------------------
# Returns whether a key is being pressed
#--------------------------------------------------------------------------
def self.getstate(key)
return (@GetKeyState.call(key)&0x8000)>0
end
def self.update
if @keystate
for i in 0...256
@newstate=self.getstate(i)
@triggerstate[i]=(@newstate&&@keystate[i]==0)
@releasestate[i]=(!@newstate&&@keystate[i]>0)
@keystate[i]=@newstate ? @keystate[i]+1 : 0
end
else
@keystate=[]
@triggerstate=[]
@releasestate=[]
for i in 0...256
@keystate[i]=self.getstate(i) ? 1 : 0
@triggerstate[i]=false
@releasestate[i]=false
end
end
end
def self.buttonToKey(button)
case button
when Input::DOWN
return [0x28] # Down
when Input::LEFT
return [0x25] # Left
when Input::RIGHT
return [0x27] # Right
when Input::UP
return [0x26] # Up
when Input::A
return [0x5A,0x10] # Z, Shift
when Input::B
return [0x58,0x1B] # X, ESC
when Input::C
return [0x43,0x0d,0x20] # C, ENTER, Space
when Input::X
return [0x41] # A
when Input::Y
return [0x53] # S
when Input::Z
return [0x44] # D
when Input::L
return [0x51,0x21] # Q, Page Up
when Input::R
return [0x57,0x22] # W, Page Up
when Input::SHIFT
return [0x10] # Shift
when Input::CTRL
return [0x11] # Ctrl
when Input::ALT
return [0x12] # Alt
when Input::F5
return [0x74] # F5
when Input::F6
return [0x75] # F6
when Input::F7
return [0x76] # F7
when Input::F8
return [0x77] # F8
when Input::F9
return [0x78] # F9
else
# ★ 参数为整型时使用自定义的按键 ★
if button.is_a? Integer then return [button] end
return []
end
end
def self.dir4
button=0
repeatcount=0
if self.press?(Input::DOWN) && self.press?(Input::UP)
return 0
end
if self.press?(Input::LEFT) && self.press?(Input::RIGHT)
return 0
end
for b in [Input::DOWN,Input::LEFT,Input::RIGHT,Input::UP]
rc=self.count(b)
if rc>0
if repeatcount==0 || rc<repeatcount
button=b
repeatcount=rc
end
end
end
return button
end
def self.dir8
buttons=[]
for b in [Input::DOWN,Input::LEFT,Input::RIGHT,Input::UP]
rc=self.count(b)
if rc>0
buttons.push([b,rc])
end
end
if buttons.length==0
return 0
elsif buttons.length==1
return buttons[0][0]
elsif buttons.length==2
#-----------------------------------------------------------------------
# since buttons sorted by button, no need to sort here
#-----------------------------------------------------------------------
if (buttons[0][0]==Input::DOWN && buttons[1][0]==Input::UP)
return 0
end
if (buttons[0][0]==Input::LEFT && buttons[1][0]==Input::RIGHT)
return 0
end
end
buttons.sort!{|a,b| a[1]<=>b[1]}
updown=0
leftright=0
for b in buttons
if updown==0 && (b[0]==Input::UP || b[0]==Input::DOWN)
updown=b[0]
end
if leftright==0 && (b[0]==Input::LEFT || b[0]==Input::RIGHT)
leftright=b[0]
end
end
if updown==Input::DOWN
return 1 if leftright==Input::LEFT
return 3 if leftright==Input::RIGHT
return 2
elsif updown==Input::UP
return 7 if leftright==Input::LEFT
return 9 if leftright==Input::RIGHT
return 8
else
return 4 if leftright==Input::LEFT
return 6 if leftright==Input::RIGHT
return 0
end
end
#--------------------------------------------------------------------------
# ● 按住(repeat)某键时记数
#--------------------------------------------------------------------------
def self.count(button)
for btn in self.buttonToKey(button)
c=self.repeatcount(btn)
return c if c>0
end
return 0
end
#--------------------------------------------------------------------------
# ● 判断抬起
#--------------------------------------------------------------------------
def self.trigger?(button)
return self.buttonToKey(button).any? {|item| self.triggerex?(item) }
end
#--------------------------------------------------------------------------
# ● 判断按住
#--------------------------------------------------------------------------
def self.repeat?(button)
return self.buttonToKey(button).any? {|item| self.repeatex?(item) }
end
#--------------------------------------------------------------------------
# ● 判断按下
#--------------------------------------------------------------------------
def self.press?(button)
return self.count(button)>0
end
#--------------------------------------------------------------------------
# ● 记数大于20时判定为按住
#--------------------------------------------------------------------------
def self.repeatex?(key)
return false if !@keystate
return @keystate[key]==1 || (@keystate[key]>20 && (@keystate[key]&1)==0)
end
#--------------------------------------------------------------------------
# ● 抬起后释放
#--------------------------------------------------------------------------
def self.releaseex?(key)
return false if !@releasestate
return @releasestate[key]
end
#--------------------------------------------------------------------------
# ● 按下瞬间
#--------------------------------------------------------------------------
def self.triggerex?(key)
return false if !@triggerstate
return @triggerstate[key]
end
#--------------------------------------------------------------------------
# ● 按住(repeat)某键时记数
#--------------------------------------------------------------------------
def self.repeatcount(key)
return 0 if !@keystate
return @keystate[key]
end
#--------------------------------------------------------------------------
# ● 记数大于0时判定为按下
#--------------------------------------------------------------------------
def self.pressex?(key)
return self.repeatcount(key)>0
end
end
-azogi: 
写轮眼
发表于 2014-6-5 22:00:54
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升龙剑
发表于 2014-6-6 19:20:16
以下内容来自外站(注释我自己翻译的)仅供参考