优化两个新背景代码
This commit is contained in:
MrZ_26
@@ -1,34 +1,34 @@
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--Space with stars
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local gc=love.graphics
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local circle,setColor,hsv=gc.circle,gc.setColor,COLOR.hsv
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local rnd,pi,sin,cos=math.random,math.pi,math.sin,math.cos
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local sin,cos=math.sin,math.cos
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local back={}
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local sDist,sRev={},{} -- star data in SoA [distance from center, revolution progress, color]
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local k
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local d,r -- temp vars for optimization
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function back.init()
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if sDist[1]then return end
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local max
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for i=0,20 do
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max=16*(i+1)
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for j=1,max do
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sDist[#sDist+1]=i+rnd()
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sRev[#sRev+1]=2*pi*j/max+2*pi*rnd()/max
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sDist[#sDist+1]=i+math.random()
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sRev[#sRev+1]=MATH.tau*j/max+MATH.tau*math.random()/max
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end
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end
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end
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function back.resize(w,h)k=3*SCR.k end
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function back.update(dt)
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for i=1,#sDist do sRev[i]=(sRev[i]+dt/(sDist[i]+1))%(2*pi) end
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for i=1,#sDist do
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sRev[i]=(sRev[i]+dt/(sDist[i]+1))%MATH.tau
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end
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end
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function back.draw()
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gc.clear()
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gc.translate(SCR.cx,SCR.cy)
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gc.scale(SCR.k)
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gc.rotate(1)
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for i=1,#sDist do
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d,r=sDist[i],sRev[i]
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local d,r=sDist[i],sRev[i]
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if d<5 then
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setColor(hsv(.088,(d-2)/7,1,.7))
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else
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@@ -36,8 +36,6 @@ function back.draw()
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end
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circle('fill',8*d*cos(r),24*d*sin(r),3)
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end
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gc.rotate(-1)
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gc.translate(-SCR.cx,-SCR.cy)
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end
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function back.discard()end
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return back
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@@ -1,32 +1,31 @@
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local gc=love.graphics
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local hsv=COLOR.hsv
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local circle,push,pop,rot,translate,setColor=gc.circle,gc.push,gc.pop,gc.rotate,gc.translate,gc.setColor
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local rnd,sin,cos,twopi,pow,log,ceil=math.random,math.sin,math.cos,2*math.pi,math.pow,math.log,math.ceil
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local rnd,sin,cos,log,ceil=math.random,math.sin,math.cos,math.log,math.ceil
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local back={}
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local qX,qY,qdX,qdY={},{},{},{} -- quark data in SoA [size, X, Y, dx, dy, color]
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local colors={{1,0,0,.8},{0,1,0,.8},{0,0,1,.8}}
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local ptcclr={{1,0,0},{0,1,0},{0,0,1}}
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local ptcclr={{1,.26,.26},{.26,1,.26},{.26,.26,1}}
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local apcclr={{0,1,1},{1,0,1},{1,1,0}}
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local blasts={} -- data about annihilation blasts from particles and antiparticles colliding
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local ptc={} -- particle-antiparticle data (antiparticle is a mirror of particle)
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local nextpair=math.huge
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local nextpair
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local W,H,size
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local quarkCount=400
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local theta,side,x,y,t,p,cutoff -- temp vars for optimization
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local x,y,cutoff -- temp vars for optimization
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local function spawnQuarkRandom(i)
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qX[i]=rnd(W)-10 -- X
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qY[i]=rnd(H)-10 -- Y
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theta=rnd()*twopi
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qX[i]=rnd(W)-10 -- X
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qY[i]=rnd(H)-10 -- Y
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local theta=rnd()*MATH.tau
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qdX[i]=cos(theta)*300 -- dx
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qdY[i]=sin(theta)*300 -- dy
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end
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local function spawnQuarkEdge(i)
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side=rnd(4)
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local side=rnd(4)
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if side==1 then -- Up edge of screen
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qX[i]=rnd(SCR.x-10,SCR.ex+10)
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qY[i]=SCR.y-10
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@@ -40,92 +39,91 @@ local function spawnQuarkEdge(i)
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qX[i]=SCR.x-10
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qY[i]=rnd(SCR.y-10,SCR.ey+10)
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end
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theta=rnd()*twopi
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qdX[i]=cos(theta)*300 -- dx
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qdY[i]=sin(theta)*300 -- dy
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local theta=rnd()*MATH.tau
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qdX[i]=cos(theta)*300 -- dx
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qdY[i]=sin(theta)*300 -- dy
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end
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local function spawnParticlePair()
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x,y=rnd(W)-10,rnd(H)-10
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theta=rnd()*twopi
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ptc[#ptc+1]={x=x,y=y,dist=0,theta=theta,v=500, c=rnd(3)}
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ptc[#ptc+1]={x=x,y=y,dist=0,theta=rnd()*MATH.tau,v=500, c=rnd(3)}
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end
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local function spawnBlast(_x,_y)blasts[#blasts+1]={x=_x,y=_y,t=0}end
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local function spawnBlast(_x,_y) blasts[#blasts+1]={x=_x,y=_y,t=0} end
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function back.init()
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qX,qY,qdX,qdY={},{},{},{}
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blasts={}
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ptc={}
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cutoff={ceil(quarkCount/3),ceil(2*quarkCount/3)}
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nextpair=0
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BG.resize(SCR.w,SCR.h)
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end
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function back.resize(w,h)
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W,H=w+20,h+20
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for i=1,quarkCount do spawnQuarkRandom(i)end
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for i=1,quarkCount do spawnQuarkRandom(i) end
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size=2.6*SCR.k
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end
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function back.update(dt)
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local debug_dt=TIME()
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--Move far-away quarks
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for i=1,quarkCount do
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qX[i]=qX[i]+qdX[i]*dt
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qY[i]=qY[i]+qdY[i]*dt
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if qX[i]<SCR.x-26 or qX[i]>SCR.ex+26 or qY[i]<SCR.y-26 or qY[i]>SCR.ey+26 then spawnQuarkEdge(i)end
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if qX[i]<SCR.x-26 or qX[i]>SCR.ex+26 or qY[i]<SCR.y-26 or qY[i]>SCR.ey+26 then
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spawnQuarkEdge(i)
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end
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end
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--Particle pair attraction & destruction
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for i=1,#ptc do
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p=ptc[i]
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if not p then goto continue end
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p.dist=p.dist+p.v*dt
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for i=#ptc,1,-1 do
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local p=ptc[i]
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if p then
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p.dist=p.dist+p.v*dt
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p.v=p.v-p.dist^2*dt
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p.v=p.v-pow(p.dist,2)*dt
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--Destroy colliding particle pairs
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if p.dist<=10 and p.v<=0 then
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spawnBlast(p.x,p.y)
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for j=i,#ptc do ptc[j]=ptc[j+1]end
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i=i-1
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--Destroy colliding particle pairs
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if p.dist<=10 and p.v<=0 then
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spawnBlast(p.x,p.y)
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table.remove(ptc,i)
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end
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end
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::continue::
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end
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--Age blasts, delete old blasts
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for i=1,#blasts do
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if not blasts[i]then goto continue end
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blasts[i].t=blasts[i].t+dt
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if blasts[i].t>=1 then
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for j=i,#blasts do
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blasts[j]=blasts[j+1]
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for i=#blasts,1,-1 do
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if blasts[i] then
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blasts[i].t=blasts[i].t+dt
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if blasts[i].t>=1 then
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table.remove(blasts,i)
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end
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i=i-1
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end
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::continue::
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end
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--Spawn particle pairs
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nextpair=nextpair-dt
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if nextpair==math.huge then
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nextpair=rnd()+rnd(0,3)
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elseif nextpair<=0 then
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if nextpair<=0 then
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spawnParticlePair()
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nextpair=rnd()+rnd(0,3)
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nextpair=rnd()*4
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end
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end
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function back.draw()
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local debug_dt=TIME()
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gc.clear(0.08,0.04,0.01)
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translate(-10,-10)
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setColor(1,0,0,.8)
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for i=1,cutoff[1]do circle('fill',qX[i],qY[i],size)end -- draw red quarks
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for i=1,cutoff[1] do -- draw red quarks
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circle('fill',qX[i],qY[i],size)
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end
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setColor(0,1,0,.8)
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for i=cutoff[1]+1,cutoff[2]do circle('fill',qX[i],qY[i],size)end -- draw green quarks
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for i=cutoff[1]+1,cutoff[2] do -- draw green quarks
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circle('fill',qX[i],qY[i],size)
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end
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setColor(0,0,1,.8)
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for i=cutoff[2]+1,quarkCount do circle('fill',qX[i],qY[i],size) end -- draw blue quarks
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for i=cutoff[2]+1,quarkCount do -- draw blue quarks
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circle('fill',qX[i],qY[i],size)
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end
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for i=1,#ptc do
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p=ptc[i]
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local p=ptc[i]
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push()
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translate(p.x,p.y)rot(p.theta)
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translate(p.x,p.y)
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rot(p.theta)
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setColor(ptcclr[p.c])
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circle('fill', p.dist,0,4*size)
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@@ -134,17 +132,16 @@ function back.draw()
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pop()
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end
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for i=1,#blasts do
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t=blasts[i].t
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local t=blasts[i].t
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setColor(hsv(-80*t,1-1.7*log(5*t,10),1,1-t))
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circle('fill',blasts[i].x,blasts[i].y,40*log(3*t+1.7,3))
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circle('fill',blasts[i].x,blasts[i].y,62*t^.5)
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end
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translate(10,10)
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end
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function back.discard()
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qX,qY,qdX,qdY,qC=nil,nil,nil,nil,nil
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blasts=nil
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ptc=nil
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nextpair=math.huge
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collectgarbage('collect')
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collectgarbage()
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end
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return back
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