154 lines
3.6 KiB
Lua
154 lines
3.6 KiB
Lua
local gc=love.graphics
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local getColor,setColor=gc.getColor,gc.setColor
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local int,rnd=math.floor,math.random
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local ins,rem=table.insert,table.remove
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local draw=gc.draw
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local texts={}
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local textFX={}
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function textFX.appear(t)
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draw(
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t.text,t.x,t.y,
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nil,
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nil,nil,
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t.text:getWidth()*.5,t.text:getHeight()*.5
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)
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end
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function textFX.sudden(t)
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setColor(1,1,1,1-t.c)
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draw(
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t.text,t.x,t.y,
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nil,
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nil,nil,
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t.text:getWidth()*.5,t.text:getHeight()*.5
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)
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end
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function textFX.fly(t)
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draw(
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t.text,t.x+(t.c-.5)^3*300,t.y,
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nil,
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nil,nil,
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t.text:getWidth()*.5,t.text:getHeight()*.5
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)
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end
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function textFX.stretch(t)
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draw(
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t.text,t.x,t.y,
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nil,
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t.c<.3 and(.3-t.c)*1.6+1 or 1,1,
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t.text:getWidth()*.5,t.text:getHeight()*.5
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)
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end
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function textFX.drive(t)
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draw(
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t.text,t.x,t.y,
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nil,
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nil,nil,
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t.text:getWidth()*.5,t.text:getHeight()*.5,
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t.c<.3 and(.3-t.c)*2 or 0,0
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)
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end
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function textFX.spin(t)
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draw(
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t.text,t.x,t.y,
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t.c<.3 and(.3-t.c)^2*4 or t.c<.8 and 0 or(t.c-.8)^2*-4,
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nil,nil,
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t.text:getWidth()*.5,t.text:getHeight()*.5
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)
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end
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function textFX.flicker(t)
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local _,_,_,T=getColor()
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setColor(1,1,1,T*(rnd()+.5))
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draw(
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t.text,t.x,t.y,
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nil,
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nil,nil,
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t.text:getWidth()*.5,t.text:getHeight()*.5
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)
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end
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function textFX.zoomout(t)
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draw(
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t.text,t.x,t.y,
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nil,
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t.c^.5*.1+1,nil,
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t.text:getWidth()*.5,t.text:getHeight()*.5
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)
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end
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function textFX.beat(t)
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local k=t.c<.3 and 1.3-t.c^2/.3 or 1
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draw(
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t.text,t.x,t.y,
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nil,
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k,k,
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t.text:getWidth()*.5,t.text:getHeight()*.5
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)
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end
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function textFX.score(t)
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local _,_,_,T=getColor()
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setColor(1,1,1,T*.5)
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draw(
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t.text,t.x,t.y-0-t.c^.2*50,
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nil,
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nil,nil,
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t.text:getWidth()*.5,t.text:getHeight()*.5
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)
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end
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local TEXT={}
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function TEXT.clear()
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texts={}
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end
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function TEXT.show(text,x,y,font,style,spd,stop)
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ins(texts,{
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c=0, --Timer
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text=gc.newText(FONT.get(int(font/5)*5 or 40),text), --String
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x=x or 0, --X
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y=y or 0, --Y
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spd=(spd or 1), --Timing speed(1=last 1 sec)
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stop=stop, --Stop time(sustained text)
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draw=assert(textFX[style or'appear'],"no text type:"..style),--Draw method
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})
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end
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function TEXT.getText(text,x,y,font,style,spd,stop)--Another version of TEXT.show(), but only return text object, need manual management
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return{
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c=0,
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text=gc.newText(FONT.get(int(font/5)*5 or 40),text),
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x=x or 0,
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y=y or 0,
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spd=(spd or 1),
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stop=stop,
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draw=textFX[style or'appear']or error("unavailable type:"..style),
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}
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end
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function TEXT.update(dt,list)
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if not list then
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list=texts
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end
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for i=#list,1,-1 do
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local t=list[i]
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t.c=t.c+t.spd*dt
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if t.stop then
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if t.c>t.stop then
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t.c=t.stop
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end
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end
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if t.c>1 then
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rem(list,i)
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end
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end
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end
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function TEXT.draw(list)
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if not list then
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list=texts
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end
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for i=1,#list do
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local t=list[i]
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local p=t.c
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setColor(1,1,1,p<.2 and p*5 or p<.8 and 1 or 5-p*5)
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t:draw()
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end
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end
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return TEXT
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