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 16
- compare with another revision
- download diff
- download tarball
- view history from revision 16
- Committer: Josh C
- Date: 2013-05-09 01:12:28 UTC
- Revision ID: josh@9ix.org-20130509011228-7rp3uenr6lmpfwt8
change control scheme
- files removed:
- boom.lua
- files modified:
- Info.plist
added
removed
enemy.lua
1
local accelLimit = 150
2
local velLimit = 300
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
state = 'patrolling',
9
onNew = function (self)
10
self.thrust = Tile:new{image = 'data/thrust.png'}
11
--the.app.view:add(self.thrust)
12
self.shield = Shield:new{ship = self}
13
14
self:chooseTarget()
15
end,
16
onStartFrame = function (self)
17
18
local tvec = vector.new(self.target.x - self.x,
19
self.target.y - self.y)
20
21
22
local tAngle = math.atan2(tvec.y, tvec.x)
23
local aDiff = self.rotation - tAngle
24
25
while aDiff < (-math.pi) do
26
--print(aDiff .. ' < -π')
27
aDiff = aDiff + 2 * math.pi
28
end
29
while aDiff > math.pi do
30
--print(aDiff .. ' > π')
31
aDiff = aDiff - 2 * math.pi
32
end
33
34
if math.abs(aDiff) > 0.1 then
35
-- rotation really shouldn't be negative. I
36
-- don't understand why that is. :\
37
self.velocity.rotation = -2 * util.signOf(aDiff)
38
else
39
--print('not rotating')
40
self.velocity.rotation = 0
41
end
42
43
if self.state == 'combat' and not the.player.active then
44
self.state = 'patrolling'
45
end
46
47
local pdist2 = vector.new(the.player.x - self.x,
48
the.player.y - self.y):len2()
49
50
if pdist2 < (the.app.width / 2)^2 then
51
-- if player is roughly on enemy's screen
52
if self.state == 'patrolling' and the.player.active and not the.player.onPlanet then
53
self.state = 'combat'
54
self.target = the.player
55
end
56
elseif pdist2 > (3 * the.app.width)^2 then
57
if self.state == 'combat' then
58
self.state = 'patrolling'
59
self:chooseTarget()
60
end
61
end
62
63
local tdist2 = tvec:len2()
64
65
if tdist2 > 400^2 then
66
self.acceleration = vector.new(300, 0)
67
self.acceleration:rotate_inplace(self.rotation)
68
self.thrust.visible = true
69
else
70
self.acceleration = {x=0, y=0}
71
self.thrust.visible = false
72
end
73
74
if tdist2 < 400^2 then
75
if self.state == 'patrolling' then
76
self:chooseTarget()
77
elseif self.state == 'combat' then
78
if math.abs(aDiff) < 0.5 * math.pi and
79
love.timer.getTime() - self.lastFired > 0.25 then
80
--print('pew')
81
b = Bullet:new{
82
x = self.x + self.width / 2,
83
y = self.y + self.height / 2,
84
rotation = self.rotation,
85
source = self
86
}
87
self.lastFired = love.timer.getTime()
88
end
89
end
90
end
91
92
end,
93
7
onUpdate = function(self)
94
self.thrust.x = self.x - self.width
95
self.thrust.y = self.y
96
self.thrust.rotation = self.rotation
97
end,
98
onCollide = function (self, other)
99
if other:instanceOf(Bullet) and other.source ~= self then
100
if self.shield.strength == 0 then
101
-- die
102
the.app.view:add( Boom:new {
103
x = self.x,
104
y = self.y,
105
velocity = { rotation = 5 }
106
})
107
108
self:die()
109
self.thrust:die()
110
self.shield:die()
111
the.enemies:remove(self)
112
the.app.view:remove(self.thrust)
113
the.app.view:remove(self.shield)
114
115
-- and add a new enemy somewhere else...
116
local e = Enemy:new{x = math.random(the.bg.width),
117
y = math.random(the.bg.height)}
118
the.enemies:add(e)
119
the.view:add(e.thrust)
120
the.view:add(e.shield)
121
else
122
self.shield:onHit()
123
end
124
125
other:die()
126
the.bullets:remove(other)
127
end
128
end,
129
chooseTarget = function (self)
130
self.target = {
131
x = math.random(the.bg.width),
132
y = math.random(the.bg.height)
133
}
134
end
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
135
26
}
b'\\ No newline at end of file'
Loggerhead is a web-based interface for Breezy
Version: 2.0.1