优化绘制虚拟按键的代码

parts/gametoolfunc.lua

@@ -2,6 +2,9 @@ local tm=love.timer
 local data=love.data
 
 local fs=love.filesystem
+local gc=love.graphics
+local gc_setColor,gc_circle=gc.setColor,gc.circle
+
 local int,rnd=math.floor,math.random
 local sub=string.sub
 local char,byte=string.char,string.byte
@@ -358,6 +361,50 @@ end
 
 
 
+--Game draw
+local VK=virtualkey
+function drawVirtualKeys()
+	if SETTING.VKSwitch then
+		local a=SETTING.VKAlpha
+		local _
+		if SETTING.VKIcon then
+			local icons=TEXTURE.VKIcon
+			for i=1,#VK do
+				if VK[i].ava then
+					local B=VK[i]
+					gc_setColor(1,1,1,a)
+					gc.setLineWidth(B.r*.07)
+					gc_circle("line",B.x,B.y,B.r,10)--Button outline
+					_=VK[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,#VK do
+				if VK[i].ava then
+					local B=VK[i]
+					gc_setColor(1,1,1,a)
+					gc.setLineWidth(B.r*.07)
+					gc_circle("line",B.x,B.y,B.r,10)
+					_=VK[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
+
+
 --Game
 function generateLine(hole)
 	-- return 2^10-1-2^(hole-1)