65 lines
1.4 KiB
Lua
65 lines
1.4 KiB
Lua
local node = Node:extend('nodes.at', {
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})
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-- local papa = love.graphics.newImage("papa.png")
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local h = 25.0
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local v = {
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{-h, -h, -h},
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{ h, -h, -h},
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{ h, h, -h},
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{-h, h, -h},
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{-h, -h, h},
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{ h, -h, h},
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{ h, h, h},
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{-h, h, h}
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}
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local c = {
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{0, 1, 31},
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{1, 2, 31},
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{2, 3, 31},
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{3, 0, 31},
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{0, 4, 34},
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{1, 5, 34},
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{2, 6, 34},
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{3, 7, 34},
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{4, 5, 32},
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{5, 6,32},
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{6, 7,32},
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{7, 4,32}
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}
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local E = 100 * math.tan(2*math.pi/3)
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function to2d(p) return p[1] * E / (p[3]+E), p[2] * E / (p[3]+E) end
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function node:render()
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love.graphics.setColor( 0, 0, 0 )
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love.graphics.rectangle("fill", 0, 0, love.graphics.getWidth(), love.graphics.getHeight())
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love.graphics.setColor( 1.0, 1.0, 1.0 )
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local w = love.graphics.getWidth() / 2
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local h = love.graphics.getHeight() / 2
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local scl = 6
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for _, p in ipairs(c) do
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x1, y1 = to2d(v[p[1]+1])
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x2, y2 = to2d(v[p[2]+1])
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love.graphics.line(x1 * scl + w, y1 * scl + h, x2 * scl + w, y2 * scl + h)
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end
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end
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function node:update(dt)
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for _, vec in ipairs(v) do
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angle = -dt/3
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nv0 = math.cos(angle) * vec[1] + math.sin(angle) * vec[3]
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nv2 = -math.sin(angle) * vec[1] + math.cos(angle) * vec[3]
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vec[1] = nv0
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vec[3] = nv2
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angle = dt
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nv1 = math.cos(angle) * vec[2] - math.sin(angle) * vec[3]
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nv2 = math.sin(angle) * vec[2] + math.cos(angle) * vec[3]
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vec[2] = nv1
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vec[3] = nv2
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end
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end
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return node
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