新增virtualKey模块整理虚拟按键相关代码，整理代码

parts/virtualKey.lua

@@ -0,0 +1,164 @@
+local SETTING=SETTING
+
+local keys={}
+for i=1,#VK_org do keys[i]={}end--In-game virtualkey layout
+
+local VK={}
+
+function VK.getKeys()
+	return keys
+end
+
+function VK.on(x,y)
+	local dist,nearest=1e10
+	for K=1,#keys do
+		local B=keys[K]
+		if B.ava then
+			local d1=(x-B.x)^2+(y-B.y)^2
+			if d1<B.r^2 then
+				if d1<dist then
+					nearest,dist=K,d1
+				end
+			end
+		end
+	end
+	return nearest
+end
+
+function VK.touch(id,x,y)
+	local B=keys[id]
+	B.isDown=true
+	B.pressTime=10
+
+	if SETTING.VKTrack then
+		--Auto follow
+		local O=VK_org[id]
+		local _FW,_CW=SETTING.VKTchW,1-SETTING.VKCurW
+		local _OW=1-_FW-_CW
+		--(finger+current+origin)
+		B.x=x*_FW+B.x*_CW+O.x*_OW
+		B.y=y*_FW+B.y*_CW+O.y*_OW
+
+		--Button collision (not accurate)
+		if SETTING.VKDodge then
+			for i=1,#keys do
+				local b=keys[i]
+				local d=B.r+b.r-((B.x-b.x)^2+(B.y-b.y)^2)^.5--Hit depth(Neg means distance)
+				if d>0 then
+					b.x=b.x+(b.x-B.x)*d*b.r*2.6e-5
+					b.y=b.y+(b.y-B.y)*d*b.r*2.6e-5
+				end
+			end
+		end
+	end
+	SFX.play("virtualKey",SETTING.VKSFX)
+	VIB(SETTING.VKVIB)
+end
+
+function VK.press(id)
+	keys[id].isDown=true
+	keys[id].pressTime=10
+end
+
+function VK.release(id)
+	keys[id].isDown=false
+end
+
+function VK.switchKey(id,on)
+	keys[id].ava=on
+end
+
+function VK.restore()
+	for i=1,#VK_org do
+		local B,O=keys[i],VK_org[i]
+		B.ava=O.ava
+		B.x=O.x
+		B.y=O.y
+		B.r=O.r
+		B.color=O.color
+		B.isDown=false
+		B.pressTime=0
+	end
+	for k,v in next,PLAYERS[1].keyAvailable do
+		if not v then
+			keys[k].ava=false
+		end
+	end
+end
+
+function VK.update()
+	if SETTING.VKSwitch then
+		for i=1,#keys do
+			local _=keys[i]
+			if _.pressTime>0 then
+				_.pressTime=_.pressTime-1
+			end
+		end
+	end
+end
+
+local gc=love.graphics
+local gc_circle,gc_draw,gc_setColor,gc_setLineWidth=gc.circle,gc.draw,gc.setColor,gc.setLineWidth
+function VK.draw()
+	if SETTING.VKSwitch then
+		local a=SETTING.VKAlpha
+		local _
+		if SETTING.VKIcon then
+			local icons=TEXTURE.VKIcon
+			for i=1,#keys do
+				if keys[i].ava then
+					local B=keys[i]
+					gc_setColor(1,1,1,a)
+					gc_setLineWidth(B.r*.07)
+					gc_circle("line",B.x,B.y,B.r,10)--Button outline
+					_=keys[i].pressTime
+					gc_setColor(B.color[1],B.color[2],B.color[3],a)
+					gc_draw(icons[i],B.x,B.y,nil,B.r*.026+_*.08,nil,18,18)--Icon
+					if _>0 then
+						gc_setColor(1,1,1,a*_*.08)
+						gc_circle("fill",B.x,B.y,B.r*.94,10)--Glow when press
+						gc_circle("line",B.x,B.y,B.r*(1.4-_*.04),10)--Ripple
+					end
+				end
+			end
+		else
+			for i=1,#keys do
+				if keys[i].ava then
+					local B=keys[i]
+					gc_setColor(1,1,1,a)
+					gc_setLineWidth(B.r*.07)
+					gc_circle("line",B.x,B.y,B.r,10)
+					_=keys[i].pressTime
+					if _>0 then
+						gc_setColor(1,1,1,a*_*.08)
+						gc_circle("fill",B.x,B.y,B.r*.94,10)
+						gc_circle("line",B.x,B.y,B.r*(1.4-_*.04),10)
+					end
+				end
+			end
+		end
+	end
+end
+function VK.preview(selected)
+	if SETTING.VKSwitch then
+		for i=1,#VK_org do
+			local B=VK_org[i]
+			if B.ava then
+				gc_setColor(1,1,1,SETTING.VKAlpha)
+				gc_setLineWidth(B.r*.07)
+				gc_circle("line",B.x,B.y,B.r,10)
+				if selected==i and TIME()%.26<.13 then
+					gc_setColor(1,1,1,SETTING.VKAlpha*.62)
+					gc_circle("fill",B.x,B.y,B.r,10)
+				end
+				if SETTING.VKIcon then
+					local c=B.color
+					gc_setColor(c[1],c[2],c[3],SETTING.VKAlpha)
+					gc_draw(TEXTURE.VKIcon[i],B.x,B.y,nil,B.r*.025,nil,18,18)
+				end
+			end
+		end
+	end
+end
+
+return VK