206 lines
4.5 KiB
Lua
206 lines
4.5 KiB
Lua
local gc=love.graphics
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local gc_setColor,gc_setLineWidth=gc.setColor,gc.setLineWidth
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local gc_draw,gc_line=gc.draw,gc.line
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local gc_rectangle,gc_circle=gc.rectangle,gc.circle
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local max,min=math.max,math.min
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local rnd=math.random
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local ins,rem=table.insert,table.remove
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local fx={}
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local function _normUpdate(S,dt)
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S.t=S.t+dt*S.rate
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return S.t>1
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end
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local FXupdate={}
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function FXupdate.badge(S,dt)
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S.t=S.t+dt
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if S.t<.2 then
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S.x,S.y=S.x1-14,S.y1-14
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elseif S.t<.8 then
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local t=((S.t-.2)*1.6667)
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t=(3-2*t)*t*t
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S.x,S.y=S.x1*(1-t)+S.x2*t-14,S.y1*(1-t)+S.y2*t-14
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else
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S.x,S.y=S.x2-14,S.y2-14
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end
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return S.t>=1
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end
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FXupdate.attack=_normUpdate
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FXupdate.tap=_normUpdate
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FXupdate.ripple=_normUpdate
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FXupdate.rectRipple=_normUpdate
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FXupdate.shade=_normUpdate
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function FXupdate.cell(S,dt)
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if S.vx then
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S.x=S.x+S.vx*S.rate
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S.y=S.y+S.vy*S.rate
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if S.ax then
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S.vx=S.vx+S.ax*S.rate
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S.vy=S.vy+S.ay*S.rate
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end
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end
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S.t=S.t+dt*S.rate
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return S.t>1
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end
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FXupdate.line=_normUpdate
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local FXdraw={}
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function FXdraw.badge(S)
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gc_setColor(1,1,1,S.t<.2 and S.t*.6 or S.t<.8 and 1 or (1-S.t)*.6)
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gc_draw(IMG.badgeIcon,S.x,S.y)
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end
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function FXdraw.attack(S)
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gc_setColor(S.r*2,S.g*2,S.b*2,S.a*min(4-S.t*4,1))
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gc_setLineWidth(S.wid)
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local t1,t2=max(5*S.t-4,0),min(S.t*4,1)
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gc_line(
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S.x1*(1-t1)+S.x2*t1,
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S.y1*(1-t1)+S.y2*t1,
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S.x1*(1-t2)+S.x2*t2,
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S.y1*(1-t2)+S.y2*t2
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)
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gc_setLineWidth(S.wid*.6)
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t1,t2=max(4*S.t-3,0),min(S.t*5,1)
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gc_line(
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S.x1*(1-t1)+S.x2*t1,
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S.y1*(1-t1)+S.y2*t1,
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S.x1*(1-t2)+S.x2*t2,
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S.y1*(1-t2)+S.y2*t2
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)
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end
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function FXdraw.tap(S)
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local t=S.t
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gc_setColor(1,1,1,(1-t)*.4)
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gc_circle('fill',S.x,S.y,30*(1-t)^.5)
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end
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function FXdraw.ripple(S)
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local t=S.t
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gc_setLineWidth(2)
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gc_setColor(1,1,1,1-t)
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gc_circle('line',S.x,S.y,t*(2-t)*S.r)
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end
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function FXdraw.rectRipple(S)
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gc_setLineWidth(6)
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gc_setColor(1,1,1,1-S.t)
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local r=(10*S.t)^1.2
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gc_rectangle('line',S.x-r,S.y-r,S.w+2*r,S.h+2*r)
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end
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function FXdraw.shade(S)
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gc_setColor(S.r,S.g,S.b,1-S.t)
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gc_rectangle('fill',S.x,S.y,S.w,S.h,2)
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end
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function FXdraw.cell(S)
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gc_setColor(1,1,1,1-S.t)
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gc_draw(S.image,S.x,S.y,nil,S.size,nil,S.cx,S.cy)
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end
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function FXdraw.line(S)
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gc_setColor(1,1,1,S.a*(1-S.t))
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gc_line(S.x1,S.y1,S.x2,S.y2)
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end
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local SYSFX={}
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function SYSFX.update(dt)
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for i=#fx,1,-1 do
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if fx[i]:update(dt) then
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rem(fx,i)
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end
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end
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end
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function SYSFX.draw()
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for i=1,#fx do
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fx[i]:draw()
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end
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end
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function SYSFX.newBadge(x1,y1,x2,y2)
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ins(fx,{
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update=FXupdate.badge,
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draw=FXdraw.badge,
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t=0,
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x=x1,y=y1,
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x1=x1,y1=y1,
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x2=x2,y2=y2,
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})
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end
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function SYSFX.newAttack(rate,x1,y1,x2,y2,wid,r,g,b,a)
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ins(fx,{
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update=FXupdate.attack,
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draw=FXdraw.attack,
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t=0,
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rate=rate,
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x1=x1,y1=y1,-- Start pos
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x2=x2,y2=y2,-- End pos
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wid=wid,-- Line width
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r=r,g=g,b=b,a=a,
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})
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end
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function SYSFX.newTap(rate,x,y)
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local T=
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{
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update=FXupdate.tap,
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draw=FXdraw.tap,
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t=0,
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rate=rate,
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x=x,y=y,
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}
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ins(fx,T)
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end
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function SYSFX.newRipple(rate,x,y,r)
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ins(fx,{
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update=FXupdate.ripple,
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draw=FXdraw.ripple,
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t=0,
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rate=rate,
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x=x,y=y,r=r,
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})
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end
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function SYSFX.newRectRipple(rate,x,y,w,h)
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ins(fx,{
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update=FXupdate.rectRipple,
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draw=FXdraw.rectRipple,
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t=0,
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rate=rate,
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x=x,y=y,w=w,h=h,
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})
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end
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function SYSFX.newShade(rate,x,y,w,h,r,g,b)
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ins(fx,{
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update=FXupdate.shade,
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draw=FXdraw.shade,
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t=0,
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rate=rate,
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x=x,y=y,w=w,h=h,
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r=r or 1,g=g or 1,b=b or 1,
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})
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end
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function SYSFX.newCell(rate,image,size,x,y,vx,vy,ax,ay)
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ins(fx,{
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update=FXupdate.cell,
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draw=FXdraw.cell,
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t=0,
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rate=rate*(.9+rnd()*.2),
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image=image,size=size,
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cx=image:getWidth()*.5,cy=image:getHeight()*.5,
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x=x,y=y,
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vx=vx,vy=vy,
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ax=ax,ay=ay,
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})
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end
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function SYSFX.newLine(rate,x1,y1,x2,y2,r,g,b,a)
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ins(fx,{
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update=FXupdate.line,
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draw=FXdraw.line,
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t=0,
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rate=rate,
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x1=x1 or 0,y1=y1 or 0,
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x2=x2 or x1 or 1280,y2=y2 or y1 or 720,
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r=r or 1,g=g or 1,b=b or 1,a=a or 1,
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})
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end
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return SYSFX
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