shader里部分float变量改为highp float，保证丝滑

（需要同时配合apk配置更新的gles版本为3.0）

parts/backgrounds/aura.lua

@@ -4,11 +4,11 @@ local shader=SHADER.aura
 local t
 
 function back.init()
-    t=math.random()*260
+    t=math.random()*2600
     BG.resize(SCR.w,SCR.h)
 end
 function back.update(dt)
-    t=(t+dt)%2600
+    t=(t+dt)%6200
 end
 function back.draw()
     GC.clear(.08,.08,.084)

parts/backgrounds/bg1.lua

@@ -4,10 +4,10 @@ local shader=SHADER.grad1
 
 local t
 function back.init()
-    t=math.random()*260
+    t=math.random()*2600
 end
 function back.update(dt)
-    t=(t+dt)%2600
+    t=(t+dt)%6200
 end
 function back.draw()
     GC.clear(.08,.08,.084)

parts/backgrounds/bg2.lua

@@ -4,11 +4,11 @@ local shader=SHADER.grad2
 
 local t
 function back.init()
-    t=math.random()*260
+    t=math.random()*2600
     BG.resize(nil,SCR.h)
 end
 function back.update(dt)
-    t=(t+dt)%2600
+    t=(t+dt)%6200
 end
 function back.draw()
     GC.clear(.08,.08,.084)

parts/backgrounds/rainbow.lua

@@ -4,11 +4,11 @@ local shader=SHADER.rgb1
 
 local t
 function back.init()
-    t=math.random()*260
+    t=math.random()*2600
     BG.resize(SCR.w,SCR.h)
 end
 function back.update(dt)
-    t=(t+dt)%2600
+    t=(t+dt)%6200
 end
 function back.draw()
     GC.clear(.08,.08,.084)

parts/backgrounds/rainbow2.lua

@@ -4,11 +4,11 @@ local shader=SHADER.rgb2
 
 local t
 function back.init()
-    t=math.random()*260
+    t=math.random()*2600
     BG.resize(SCR.w,SCR.h)
 end
 function back.update(dt)
-    t=(t+dt)%2600
+    t=(t+dt)%6200
 end
 function back.draw()
     GC.clear(.08,.08,.084)

parts/shaders/aura.glsl

@@ -1,4 +1,4 @@
-uniform float phase;
+uniform highp float phase;
 vec4 effect(vec4 color,sampler2D tex,vec2 texCoord,vec2 scrCoord){
     float x=scrCoord.x/love_ScreenSize.x;
     float y=scrCoord.y/love_ScreenSize.y;

parts/shaders/grad1.glsl

@@ -1,4 +1,4 @@
-uniform float phase;
+uniform highp float phase;
 vec4 effect(vec4 color,sampler2D tex,vec2 texCoord,vec2 scrCoord){
     float x=scrCoord.x/love_ScreenSize.x;
     return vec4(

parts/shaders/grad2.glsl

@@ -1,4 +1,4 @@
-uniform float phase;
+uniform highp float phase;
 vec4 effect(vec4 color,sampler2D tex,vec2 texCoord,vec2 scrCoord){
     float y=scrCoord.y/love_ScreenSize.y;
     return vec4(

parts/shaders/rgb1.glsl

@@ -1,4 +1,4 @@
-uniform float phase;
+uniform highp float phase;
 vec4 effect(vec4 color,sampler2D tex,vec2 texCoord,vec2 scrCoord){
     float x=scrCoord.x/love_ScreenSize.x;
     float y=scrCoord.y/love_ScreenSize.y;

parts/shaders/rgb2.glsl

@@ -1,4 +1,4 @@
-uniform float phase;
+uniform highp float phase;
 vec4 effect(vec4 color,sampler2D tex,vec2 texCoord,vec2 scrCoord){
     float x=scrCoord.x/love_ScreenSize.x;
     float y=scrCoord.y/love_ScreenSize.y;