Code: Select all

```
function gadget:GetInfo()
return {
name = "lava test",
desc = "lava that rise",
author = "knorke + some edit by zwzsg",
date = "Feb 2011, 2011",
license = "weeeeeee iam on horse",
layer = 0,
enabled = true
}
end
if (gadgetHandler:IsSyncedCode()) then
function gadget:GameFrame(frame)
local LavaLevel
-- Calculate Lava Level
MapYmin,MapYmax=Spring.GetGroundExtremes()
LavaLevel = MapYmax-(MapYmax-MapYmin)*math.abs((frame/1800)%2-1)
-- Damage units in lava
if frame%10==9 then
for i,u in pairs(Spring.GetAllUnits()) do
x,y,z = Spring.GetUnitPosition(u)
if (y and y < LavaLevel+10) then
Spring.AddUnitDamage (u, 25)
Spring.SpawnCEG("BURN", x, y, z, 0,1,0)
end
end
end
-- Random FX in lava
local x,z=math.random(0,Game.mapSizeX),math.random(0,Game.mapSizeZ)
if Spring.GetGroundHeight(x,z)< LavaLevel then
Spring.SpawnCEG("BURN", x, LavaLevel, z, 0,1,0)
end
-- Pass to unsynced
_G.LavaLevel = LavaLevel
end
else --- UNSYNCED:
local DrawWorldTimer = nil
function DrawQuadVertices(x1,z1,x2,z2,y,TextureSize)
-- Where y the the lava plane position
-- Where TextureSize is the size of texture pattern, in elmos
gl.TexCoord(0,0)
gl.Vertex(x1,y,z1)
gl.TexCoord((x2-x1)/TextureSize,0)
gl.Vertex(x2,y,z1)
gl.TexCoord((x2-x1)/TextureSize,(z2-z1)/TextureSize)
gl.Vertex(x2,y,z2)
gl.TexCoord(0,(z2-z1)/TextureSize)
gl.Vertex(x1,y,z2)
end
function DrawLavaSquare(LavaLevel)
DrawWorldTimer=DrawWorldTimer or Spring.GetTimer()
local cm1=(math.abs(((Spring.DiffTimers(Spring.GetTimer(),DrawWorldTimer)/0.78)%2)-1)^2)*0.5
local cm2=(math.abs(((Spring.DiffTimers(Spring.GetTimer(),DrawWorldTimer)/1.13)%2)-1)^2)*0.5
local cm3=math.abs(((Spring.DiffTimers(Spring.GetTimer(),DrawWorldTimer)/2.87)%2)-1)
gl.PushAttrib(GL.ALL_ATTRIB_BITS)
gl.DepthTest(true)
gl.DepthMask(true)
gl.Texture(":a:LuaRules/Gadgets/lava.png")-- Texture file
gl.Color(1-cm1,1-cm1-cm2,0.5,1)
gl.BeginEnd(GL.QUADS,DrawQuadVertices,0,0,Game.mapSizeX,Game.mapSizeZ,LavaLevel,64)
gl.Texture(false)
gl.DepthMask(false)
gl.DepthTest(false)
gl.Color(1,1,1,1)
gl.PopAttrib()
end
function gadget:DrawWorld()
if (SYNCED.LavaLevel) then
DrawLavaSquare(SYNCED.LavaLevel)
end
end
end--end unsync
```