wing背景优化（水晶比例设计:C29H25N3O5）

parts/backgrounds/wing.lua

@@ -2,39 +2,36 @@
 local gc=love.graphics
 local rnd=math.random
 local back={}
+local crystal_img,crystals
 local wingColor={
-    {.3,.9,.9,.2},
-    {.5,1.,.5,.2},
-    {.9,.9,.3,.2},
-    {1.,.7,.3,.2},
-    {1.,.5,.5,.2},
-    {.7,.3,1.,.2},
-    {.5,.5,1.,.2},
-    {.3,.9,.9,.2},
+    {.3,.8,.9,.3},
+    {.5,1.,.5,.3},
+    {.9,.9,.3,.3},
+    {1.,.7,.3,.3},
+    {1.,.5,.7,.3},
+    {.7,.3,1.,.3},
+    {.5,.5,1.,.3},
+    {.3,.8,.9,.3},
 }
-local bar,crystal
-local W,H
+local wingHeight={.41,.42,.43,.44,.45,.46,.47,.48}
 function back.init()
-    bar=gc.newCanvas(41,1)
-    gc.setCanvas(bar)
-    gc.push('transform')
-    gc.origin()
-    for x=0,20 do
-        gc.setColor(1,1,1,x/5)
-        gc.rectangle('fill',x,0,1,1)
-        gc.rectangle('fill',41-x,0,1,1)
-    end
-    gc.pop()
-    gc.setCanvas()
+    crystal_img=GC.DO{42,118,
+        {'setCL',.93,.93,.93},
+        {'fPoly',21,0,0,29,21,40},
+        {'setCL',.6,.6,.6},
+        {'fPoly',0,29,21,118,21,40},
+        {'fPoly',21,0,42,29,21,40},
+        {'setCL',.4,.4,.4},
+        {'fPoly',21,118,42,29,21,40},
+    }
     back.resize()
 end
 function back.resize()
-    crystal={}
-    W,H=SCR.w,SCR.h
+    crystals={}
     for i=1,16 do
-        crystal[i]={
-            x=i<9 and W*.05*i or W*.05*(28-i),
-            y=H*.1,
+        crystals[i]={
+            x=i<9 and SCR.w*.05*i or SCR.w*.05*(28-i),
+            y=SCR.h*(wingHeight[i]or wingHeight[i-8]),
             a=0,
             va=0,
             f=i<9 and .012-i*.0005 or .012-(17-i)*.0005
@@ -43,31 +40,39 @@ function back.resize()
 end
 function back.update()
     for i=1,16 do
-        local B=crystal[i]
+        local B=crystals[i]
         B.a=B.a+B.va
         B.va=B.va*.986-B.a*B.f
     end
 end
 function back.draw()
     gc.clear(.06,.06,.06)
-    local sk,sy=SCR.k,H*.8
+    gc.setColor(.12,.08,.05)
+    gc.setLineWidth(6)
+    for i=1,7 do
+        local B1,B2=crystals[i],crystals[i+1]
+        gc.line(B1.x,B1.y,B2.x,B2.y)
+        B1,B2=crystals[i+8],crystals[i+9]
+        gc.line(B1.x,B1.y,B2.x,B2.y)
+    end
+    local k=SCR.k
     for i=1,8 do
         gc.setColor(wingColor[i])
-        local B=crystal[i]
-        gc.draw(bar,B.x,B.y,B.a,sk,sy,20,0)
-        B=crystal[17-i]
-        gc.draw(bar,B.x,B.y,B.a,sk,sy,20,0)
+        local B=crystals[i]
+        gc.draw(crystal_img,B.x,B.y,B.a,k,k,21,0)
+        B=crystals[17-i]
+        gc.draw(crystal_img,B.x,B.y,B.a,-k,k,21,0)
     end
 end
 function back.event(level)
     for i=1,8 do
-        local B=crystal[i]
+        local B=crystals[i]
         B.va=B.va+.001*level*(1+rnd())
-        B=crystal[17-i]
+        B=crystals[17-i]
         B.va=B.va-.001*level*(1+rnd())
     end
 end
 function back.discard()
-    bar,crystal=nil
+    crystal_img,crystals=nil
 end
 return back