/traderous : revision 20

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Planet = Tile:extend {

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image = 'data/planet1.png',

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potentialGoods = {

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{name = 'Bobble-Headed Dolls',

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low = 50, med = 100, high = 150,

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chance = 0.5},

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{name = 'Alliance Foodstuffs',

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low = 100, med = 250, high = 400,

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chance = 0.8},

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{name = 'Antique Weapons',

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low = 5000, med = 6000, high = 8000,

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chance = 0.1}

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},

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goods = {},

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onNew = function (self)

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self.indicator = Tile:new{ image = 'data/planet1ind.png' }

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the.indicators:add(self.indicator)

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while not self.name do

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local name = PlanetNames[math.random(#PlanetNames)]

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local inUse = false

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for _, planet in ipairs(the.planets.sprites) do

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if name == planet.name then inUse = true end

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end

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if not inUse then

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self.name = name

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end

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end

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while #self.goods == 0 do

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for _, good in ipairs(self.potentialGoods) do

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if math.random() < good.chance then

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local tier = math.random(4) -- betw 1 and 4

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if tier == 1 then

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table.insert(self.goods, {good.name, good.low})

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elseif tier ==2 then

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table.insert(self.goods, {good.name, good.high})

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else

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-- double chance for med (3 or 4)

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table.insert(self.goods, {good.name, good.med})

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end

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end

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end

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end

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self.label = Text:new {

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text = self.name,

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x = self.x,

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y = self.y - 32,

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width = self.width,

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align = 'center',

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font = 20

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}

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the.planetLabels:add(self.label)

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self.keyLabel = Text:new {

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text = 'Press L to land',

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x = self.x,

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y = self.y + self.height + 12,

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width = self.width,

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align = 'center',

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font = 20

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}

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the.planetLabels:add(self.keyLabel)

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end,

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onUpdate = function (self)

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local hw = self.width / 2

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local pvec = vector.new(the.player.x - (self.x + hw),

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the.player.y - (self.y + hw))

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if pvec:len2() < hw ^ 2 then

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self.label.visible = true

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self.keyLabel.visible = true

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if the.keys:justPressed('l') then

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the.player.velocity = {x=0, y=0}

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the.player.acceleration = {x=0, y=0}

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-- save player data

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the.storage.data.player = {x = the.player.x,

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y = the.player.y,

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money = the.player.money,

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goods = the.player.goods,

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cargoSpace = the.player.cargoSpace

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}

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the.storage:save()

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tradeView = TradeView:new{ planet = self }

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tradeView:activate()

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end

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else

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self.label.visible = false

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self.keyLabel.visible = false

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end

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end,

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onEndFrame = function (self)

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local indx, indy

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local pvec = vector.new(

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self.x - the.player.x + self.width / 2,

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self.y - the.player.y + self.height / 2 )

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-- TODO: is there a better way to specify the

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-- screen rectangle?

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if self:intersects(the.player.x - the.app.width / 2,

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the.player.y - the.app.height / 2,

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the.app.width,

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the.app.height) then

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-- planet is on the screen

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self.indicator.visible = false

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else

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self.indicator.visible = true

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if math.abs(pvec.x) / math.abs(pvec.y) > the.app.width / the.app.height then

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indx = (the.app.width / 2 - 10) * util.signOf(pvec.x) + 8

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indy = (the.app.width / 2 - 10) * pvec.y / math.abs(pvec.x)

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else

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indy = (the.app.height / 2 - 10) * util.signOf(pvec.y) + 8

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indx = (the.app.height / 2 - 10) * pvec.x / math.abs(pvec.y)

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end

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self.indicator.x = the.player.x + indx

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self.indicator.y = the.player.y + indy

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end

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end,

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onCollide = function (self, other)

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if other:instanceOf(Bullet) then

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the.bullets:remove(other)

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other:die()

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end

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end

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}

b'\\ No newline at end of file'