To get this branch, use:
bzr branch
http://9ix.org/bzr/traderous
« back to all changes in this revision
Viewing changes to enemy.lua
- browse files at revision 44
- compare with another revision
- download diff
- download tarball
- view history from revision 44
- Committer: Josh C
- Date: 2013-06-08 01:10:00 UTC
- Revision ID: josh@9ix.org-20130608011000-18c5io3gp1gzwebk
toggle fullscreen with f11 or alt-enter
added
removed
enemy.lua
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
18
local pAngle = math.atan2(pvec.y, pvec.x)
19
local aDiff = self.rotation - pAngle
20
21
while aDiff < (-math.pi) do
22
--print(aDiff .. ' < -π')
23
aDiff = aDiff + 2 * math.pi
24
end
25
while aDiff > math.pi do
26
--print(aDiff .. ' > π')
27
aDiff = aDiff - 2 * math.pi
28
end
29
30
if math.abs(aDiff) > 0.1 then
31
-- rotation really shouldn't be negative. I
32
-- don't understand why that is. :\
33
self.velocity.rotation = -2 * util.signOf(aDiff)
34
else
35
--print('not rotating')
36
self.velocity.rotation = 0
37
end
38
39
local pdist2 = pvec:len2()
40
41
if pdist2 > 400^2 then -- ... if player dist > 64?
42
self.acceleration = vector.new(300, 0)
43
self.acceleration:rotate_inplace(self.rotation)
44
self.thrust.visible = true
45
else
46
self.acceleration = {x=0, y=0}
47
self.thrust.visible = false
48
end
49
50
if math.abs(aDiff) < 0.5 * math.pi and
51
pdist2 < 400^2 and
52
love.timer.getTime() - self.lastFired > 0.25 then
53
--print('pew')
54
b = Bullet:new{
55
x = self.x + self.width / 2,
56
y = self.y + self.height / 2,
57
rotation = self.rotation
58
}
59
self.lastFired = love.timer.getTime()
60
end
61
62
end,
63
7
onUpdate = function(self)
64
self.thrust.x = self.x - self.width
65
self.thrust.y = self.y
66
self.thrust.rotation = self.rotation
67
end,
68
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
69
26
}
b'\\ No newline at end of file'
Loggerhead is a web-based interface for Breezy
Version: 2.0.1