73 lines
1.2 KiB
Lua
73 lines
1.2 KiB
Lua
--Flandre's wing
|
|
local gc=love.graphics
|
|
local rnd=math.random
|
|
local back={}
|
|
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},
|
|
}
|
|
local bar,crystal
|
|
local W,H
|
|
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()
|
|
back.resize()
|
|
end
|
|
function back.resize()
|
|
crystal={}
|
|
W,H=SCR.w,SCR.h
|
|
for i=1,16 do
|
|
crystal[i]={
|
|
x=i<9 and W*.05*i or W*.05*(28-i),
|
|
y=H*.1,
|
|
a=0,
|
|
va=0,
|
|
f=i<9 and .012-i*.0005 or .012-(17-i)*.0005
|
|
}
|
|
end
|
|
end
|
|
function back.update()
|
|
for i=1,16 do
|
|
local B=crystal[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
|
|
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)
|
|
end
|
|
end
|
|
function back.event(level)
|
|
for i=1,8 do
|
|
local B=crystal[i]
|
|
B.va=B.va+.001*level*(1+rnd())
|
|
B=crystal[17-i]
|
|
B.va=B.va-.001*level*(1+rnd())
|
|
end
|
|
end
|
|
function back.discard()
|
|
bar,crystal=nil
|
|
end
|
|
return back |