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  1. --Ported from javascript
  2.  
  3. local particles = {}
  4.  
  5. local numberOfSprites = 5
  6. local spawnCooldown = 0
  7.  
  8. local gfx = {}
  9. for i=1, numberOfSprites do
  10.     gfx[i] = Graphics.loadImage(i .. ".png")
  11. end
  12.  
  13. local function sin(d)
  14.     return math.sin(d*0.017453292519943)
  15. end
  16.  
  17. function onDraw()
  18.     --Red overlay:
  19.     Graphics.glDraw{vertexCoords={0, 0, 0, 600, 800, 0, 800, 600}, color={1, 0, 0, 0.133}, primitive=Graphics.GL_TRIANGLE_STRIP, priority = 1}
  20.  
  21.     if spawnCooldown <= 0 then
  22.         spawnCooldown = math.random(3)
  23.        
  24.         spawnParticle(math.random()*832 - 16, 600) --Up to 16px off either end of screen
  25.     end
  26.  
  27.     Text.print(mem(0x00B250E2, FIELD_WORD),0,0) --Line to check if paused
  28.     if true then
  29.         for i,part in ipairs(particles) do
  30.             if part ~= -1 then
  31.                 part.x = part.baseX + sin(part.timer*5)*40        --Wavy effect
  32.                 part.y = (part.y + 100) * (1 + 1/part.yV) - 100   --Converging effect
  33.                 part.timer = part.timer + 0.65
  34.                
  35.                 if part.y < -32 then
  36.                     particles[i] = -1
  37.                 end
  38.        
  39.                 Graphics.glDraw{vertexCoords={part.x, part.y, part.x + 6, part.y, part.x + 6, part.y + 6, part.x, part.y + 6}, texture=gfx[part.sprite], textureCoords={0, 0, 1, 0, 1, 1, 0, 1}, color={1,1,1,0.8}, primitive=Graphics.GL_TRIANGLE_FAN, priority = -98}
  40.                 --Graphics.drawImage(gfx[part.sprite], part.x, part.y)
  41.             end
  42.         end
  43.     end
  44.    
  45.     spawnCooldown = spawnCooldown - 1
  46. end
  47.  
  48. function spawnParticle(x, y)
  49.     local obj = {x=x, y=y}
  50.     obj.sprite = math.random(numberOfSprites)
  51.    
  52.     obj.xV = 0
  53.     obj.yV = math.random(-110, -70)
  54.     obj.baseX = x
  55.     obj.timer = 0
  56.    
  57.     table.insert(particles, obj)
  58. end
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