This is a quick and dirty adaptation of as2 script from http://www.har95.com, a weblog written by Antonio Calviño Esquer.
All credits belong to him but if you want to play and clean it :
main.lua :
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 | --[[------------------------- ALL CREDITS GOES TO : ------------------------------- http://char95.com/post/waterSurface2D/ Copyright (c) 2010 char95. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ------------------------------------------------------------------------------]]-- nNodes = 160 kf = 0.850 kp = 0.500 kr = 0.985 ho = 400 wo = 340 dxNode = 0 dx = 0 dy = 0 x = {} y = {} y0 = {} x0 = {} vy = {} vx = {} mousexo = 0 mouseyo = 0 mousex = 0 mousey = 0 line = {} onScreenTouch = function(event) if event.phase == "began" then mousex = event.x mousey = event.y if event.y > 400 then Runtime:addEventListener( "enterFrame", action ) elseif event.y < 400 then Runtime:removeEventListener( "enterFrame", action ) end elseif event.phase == "ended" then Runtime:removeEventListener( "enterFrame", action ) end end loop = function() dy = mousey- mouseyo dx = mousex - mousexo nodeTransfer() mousexo = mousex mouseyo = mousey end init = function() NodeWidth = 480/nNodes background = display.newRect(0, 0, 480, 800) background:setFillColor(243, 226, 183) circle = display.newCircle(240,400,120 ) circle:setFillColor(197, 61, 49) myText = display.newText("TOUCH THE WATER !", 170, 150, native.systemFontBold, 12) myText:setTextColor(158, 46, 35) myText.size = 36 for n = 0, nNodes do x[n] = dxNode + NodeWidth*n y[n] = 400 x0[n] = x[n] y0[n] = y[n] vx[n] = 0 vy[n] = 0 end Runtime:addEventListener( "enterFrame", loop ) Runtime:addEventListener( "touch", onScreenTouch ) end action = function() closeNode = math.floor(mousex/NodeWidth) yStrong = math.ceil(math.abs(mousey)/20) yNoise = math.abs(mousey / 8) + 3 for n=0,nNodes do yRandNoise = math.random(-5,5 ) nodeDist = math.abs(closeNode - n) theta = math.max((yStrong - nodeDist) / yStrong, 0) * math.pi - math.pi/2 yRange = (math.sin(theta) + 1)/20 dv = kf * mousey * yRange + yRandNoise vy[n] = vy[n] + dv*.05 vx[n]= 0 end end nodeTransfer = function() for n=0,nNodes do if (n==0) then dvx = x[n + 1] - x[n] dvy = y[n + 1] - y[n] elseif (n == nNodes) then dvx = x[n - 1] - x[n] dvy = y[n - 1] - y[n] else dvx = x[n + 1] + x[n - 1] - 2 * x[n] dvy = y[n + 1] + y[n - 1] - 2 * y[n] end dvy = dvy*kp dvx = dvx*kp vx[n] = (vx[n] + dvx) * kr vy[n] = (vy[n] + dvy) * kr end nodeMove() end nodeMove = function() for n=0,nNodes do y[n] = y[n] + vy[n] vy[n] = vy[n] + (y0[n] - y[n]) / 100 if n ~= 0 and n ~= nNodes then x[n] = x[n] + vx[n] vx[n] = vx[n] + (x0[n] - x[n]) / 100 else vx[n] = 0 end end nodeDraw() end nodeDraw = function() for n=0,nNodes do if line[n] then line[n]:removeSelf() end end for n=0,nNodes do line[n] = display.newLine(x[n], y[n], x[n], 800) line[n]:setColor( 180, 201, 192, 230 ) line[n].width = NodeWidth end end init() |
Very impressive!