40 lines
1.0 KiB
Lua
40 lines
1.0 KiB
Lua
local width = 7
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local height = 7
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local distance = 5
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function getHeadsetMatrix()
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local fx, fy, fz, fangle, fax, fay, faz = lovr.headset.getPose("head")
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return lovr.math.newMat4(lovr.math.vec3(fx, fy, fz), lovr.math.vec3(1, 1, 1), lovr.math.quat(fangle, fax, fay, faz))
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end
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function drawGrid(pass, matrix)
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for i=-0.5,0.5,0.05 do
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local startVect = matrix*lovr.math.newVec3(width*-1, height*i, -distance)
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local endVect = matrix*lovr.math.newVec3(width*1, height*i, -distance)
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pass:line(startVect, endVect)
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end
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for i=-0.5,0.5,0.05 do
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local startVect = matrix*lovr.math.newVec3(width*i, height*-1, -distance)
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local endVect = matrix*lovr.math.newVec3(width*i, height*1, -distance)
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pass:line(startVect, endVect)
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end
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end
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function lovr.draw(pass)
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if headMatrix == nil then
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headMatrix = getHeadsetMatrix()
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end
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if headMatrix ~= nil then
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pass:setColor(0, 1, 0)
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drawGrid(pass, headMatrix)
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local center = headMatrix * lovr.math.newVec3(0.0, 0.0, -distance)
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pass:circle(center, 0.05, 0, 0, 0, 1, 'fill')
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end
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end
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