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forest.lua
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forest.lua
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local forest = {}
forest.scale = 2
forest.active = false
function forest:init()
local points = {}
local data = lovr.filesystem.read('assets/stardome.obj')
for x, y, z in data:gmatch('(-?%d*%.%d+) (-?%d*%.%d+) (-?%d*%.%d+)') do
table.insert(points, { x, y, z })
end
self.domemesh = lovr.graphics.newMesh({{ 'lovrPosition', 'float', 3 }}, points, 'points', 'static')
self.treetexture = lovr.graphics.newTexture('assets/forest.png')
self.treematerial = lovr.graphics.newMaterial(self.treetexture, 0, 0, 0, 1)
self.ambience = lovr.audio.newSource('assets/forest.ogg', 'stream')
self.ambience:setLooping(true)
self.ambiencevolume = 0
self.ambience:setVolume(self.ambiencevolume)
self.treefade = 0
self.conclude = false
self.concluded = false
self.moonopacity = 0
end
function forest:update(dt)
if not self.active then return end
-- placeholder for transitioning the trees in
for i, hand in ipairs(lovr.headset.getHands()) do
if (hand == 'hand/right') then
if (lovr.headset.isDown(hand, 'trigger')) then
self.conclude = true
end
end
end
if self.conclude then
self.ambience:play()
self.moonopacity = math.min(self.moonopacity + dt * .1, 1)
self.ambiencevolume = math.min(self.ambiencevolume + dt * .3, 5)
if self.moonopacity > .25 then
self.moon = true
end
end
if self.moon then
if not self.concluded then
self.concluded = true
end
self.treefade = math.min(self.treefade + dt * .5, 1)
end
self.ambience:setVolume(self.ambiencevolume)
end
function forest:draw()
if not self.active then return end
local a = vec3(0, 0, 0)
local b = vec3(3 / 255, 3 / 255, 10 / 255)
local c = a:lerp(b, self.treefade)
lovr.graphics.setBackgroundColor(c:unpack())
self.domemesh:draw(0, 0, 0, self.scale)
lovr.graphics.setColor(1.0, 1.0, 1.0, self.moonopacity)
lovr.graphics.circle('fill', 5, 25, -18, 1, math.pi / 3, 1, 0, 0)
lovr.graphics.setColor(1.0, 1.0, 1.0, 1.0)
lovr.graphics.setWinding('clockwise')
lovr.graphics.setBlendMode('alpha')
lovr.graphics.sphere(self.treematerial, 0, 15, 0, 15)
lovr.graphics.setBlendMode()
lovr.graphics.setWinding('counterclockwise')
end
function forest:start()
self.active = true
end
return forest