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- Committer: Josh C
- Date: 2013-06-15 23:38:45 UTC
- Revision ID: josh@9ix.org-20130615233845-7jk8myzua5e842vz
money
- files removed:
- data/shield.png
- files modified:
- bullet.lua
added
removed
enemy.lua
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local accelLimit = 150
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local velLimit = 200
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local accelLimit = 300 * 2 -- same as the player, yes?
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local velLimit = 600 -- same as player
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Enemy = Tile:extend {
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image = 'data/enemy.png',
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maxVelocity = {x=velLimit,y=velLimit},
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minVelocity = {x=-velLimit, y=-velLimit},
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lastFired = 0,
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onNew = function (self)
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self.thrust = Tile:new{image = 'data/thrust.png'}
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--the.app.view:add(self.thrust)
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end,
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onStartFrame = function (self)
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local pvec = vector.new(the.player.x - self.x,
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the.player.y - self.y)
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local pAngle = math.atan2(pvec.y, pvec.x)
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local aDiff = self.rotation - pAngle
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while aDiff < (-math.pi) do
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--print(aDiff .. ' < -π')
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aDiff = aDiff + 2 * math.pi
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end
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while aDiff > math.pi do
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--print(aDiff .. ' > π')
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aDiff = aDiff - 2 * math.pi
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end
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if math.abs(aDiff) > 0.1 then
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-- rotation really shouldn't be negative. I
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-- don't understand why that is. :\
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self.velocity.rotation = -2 * util.signOf(aDiff)
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else
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--print('not rotating')
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self.velocity.rotation = 0
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end
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local pdist2 = pvec:len2()
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if pdist2 > 400^2 then -- ... if player dist > 64?
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self.acceleration = vector.new(300, 0)
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self.acceleration:rotate_inplace(self.rotation)
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self.thrust.visible = true
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else
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self.acceleration = {x=0, y=0}
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self.thrust.visible = false
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end
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if math.abs(aDiff) < 0.5 * math.pi and
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pdist2 < 400^2 and
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love.timer.getTime() - self.lastFired > 0.25 then
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--print('pew')
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b = Bullet:new{
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x = self.x + self.width / 2,
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y = self.y + self.height / 2,
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rotation = self.rotation
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}
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self.lastFired = love.timer.getTime()
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end
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end,
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onUpdate = function(self)
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self.thrust.x = self.x - self.width
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self.thrust.y = self.y
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self.thrust.rotation = self.rotation
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end,
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-- find where player is relative to us
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local dx = the.player.x - self.x
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local dy = the.player.y - self.y
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local ax, ay = dx, dy
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if math.abs(dx) > math.abs(accelLimit) then
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ax = accelLimit * util.signOf(dx)
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ay = accelLimit * math.abs(dx) / dy
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elseif math.abs(dy) > math.abs(accelLimit) then
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ay = accelLimit * util.signOf(dy)
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ax = accelLimit * math.abs(dy) / dx
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end
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self.acceleration.x = ax
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self.acceleration.y = ay
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self.rotation = math.atan2(self.velocity.y, self.velocity.x)
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end
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}
b'\\ No newline at end of file'
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