/traderous

To get this branch, use:
bzr branch http://9ix.org/bzr/traderous

« back to all changes in this revision

Viewing changes to enemy.lua

  • Committer: Josh C
  • Date: 2013-05-05 17:28:53 UTC
  • Revision ID: josh@9ix.org-20130505172853-j6jm7k7ng0tgkyo0
pew pew!

Show diffs side-by-side

added added

removed removed

Lines of Context:
1
 
local accelLimit = 150
2
 
local velLimit = 200
 
1
local accelLimit = 300 * 2 -- same as the player, yes?
 
2
local velLimit = 600 -- same as player
3
3
Enemy = Tile:extend {
4
4
   image = 'data/enemy.png',
5
5
   maxVelocity = {x=velLimit,y=velLimit},
6
6
   minVelocity = {x=-velLimit, y=-velLimit},
7
 
   lastFired = 0,
8
 
   onNew = function (self)
9
 
              self.thrust = Tile:new{image = 'data/thrust.png'}
10
 
              --the.app.view:add(self.thrust)
11
 
           end,
12
 
   onStartFrame = function (self)
13
 
 
14
 
                     local pvec = vector.new(the.player.x - self.x,
15
 
                                             the.player.y - self.y)
16
 
 
17
 
                     self.rotation = math.atan2(pvec.y, pvec.x)
18
 
 
19
 
                     local pdist2 = pvec:len2()
20
 
 
21
 
                     if pdist2 > 400^2 then -- ... if player dist > 64?
22
 
                        self.acceleration = vector.new(300, 0)
23
 
                        self.acceleration:rotate_inplace(self.rotation)
24
 
                        self.thrust.visible = true
25
 
                     else
26
 
                        self.acceleration = {x=0, y=0}
27
 
                        self.thrust.visible = false
28
 
                     end
29
 
 
30
 
                     if pdist2 < 400^2 and
31
 
                       love.timer.getTime() - self.lastFired > 0.25 then
32
 
                       --print('pew')
33
 
                         b = Bullet:new{
34
 
                            x = self.x + self.width / 2,
35
 
                            y = self.y + self.height / 2,
36
 
                            rotation = self.rotation
37
 
                         }
38
 
                         self.lastFired = love.timer.getTime()
39
 
                     end
40
 
 
41
 
                  end,
42
7
   onUpdate = function(self)
43
 
                 self.thrust.x = self.x - self.width
44
 
                 self.thrust.y = self.y
45
 
                 self.thrust.rotation = self.rotation
46
 
              end,
47
 
 
 
8
                 -- find where player is relative to us
 
9
                 local dx = the.player.x - self.x
 
10
                 local dy = the.player.y - self.y
 
11
 
 
12
                 local ax, ay = dx, dy
 
13
                 if math.abs(dx) > math.abs(accelLimit) then
 
14
                    ax = accelLimit * util.signOf(dx)
 
15
                    ay = accelLimit * math.abs(dx) / dy
 
16
                 elseif math.abs(dy) > math.abs(accelLimit) then
 
17
                    ay = accelLimit * util.signOf(dy)
 
18
                    ax = accelLimit * math.abs(dy) / dx
 
19
                 end
 
20
 
 
21
                 self.acceleration.x = ax
 
22
                 self.acceleration.y = ay
 
23
 
 
24
                 self.rotation = math.atan2(self.velocity.y, self.velocity.x)
 
25
              end
48
26
}
 
 
b'\\ No newline at end of file'