4
image = 'data/enemy.png',
5
maxVelocity = {x=velLimit,y=velLimit},
6
minVelocity = {x=-velLimit, y=-velLimit},
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}
16
onStartFrame = function (self)
18
local tvec = vector.new(self.target.x - self.x,
19
self.target.y - self.y)
22
local tAngle = math.atan2(tvec.y, tvec.x)
23
local aDiff = self.rotation - tAngle
25
while aDiff < (-math.pi) do
26
--print(aDiff .. ' < -π')
27
aDiff = aDiff + 2 * math.pi
29
while aDiff > math.pi do
30
--print(aDiff .. ' > π')
31
aDiff = aDiff - 2 * math.pi
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)
39
--print('not rotating')
40
self.velocity.rotation = 0
43
if self.state == 'combat' and not the.player.active then
44
self.state = 'patrolling'
47
local pdist2 = vector.new(the.player.x - self.x,
48
the.player.y - self.y):len2()
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 then
54
self.target = the.player
56
elseif pdist2 > (2 * the.app.width)^2 then
57
if self.state == 'combat' then
58
self.state = 'patrolling'
63
local tdist2 = tvec:len2()
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
70
self.acceleration = {x=0, y=0}
71
self.thrust.visible = false
74
if tdist2 < 400^2 then
75
if self.state == 'patrolling' then
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
82
x = self.x + self.width / 2,
83
y = self.y + self.height / 2,
84
rotation = self.rotation,
87
self.lastFired = love.timer.getTime()
93
onUpdate = function(self)
94
self.thrust.x = self.x - self.width
95
self.thrust.y = self.y
96
self.thrust.rotation = self.rotation
98
onCollide = function (self, other)
99
if other:instanceOf(Bullet) and other.source ~= self then
100
if self.shield.strength == 0 then
102
the.app.view:add( Boom:new {
105
velocity = { rotation = 5 }
111
the.enemies:remove(self)
112
the.app.view:remove(self.thrust)
113
the.app.view:remove(self.shield)
119
the.bullets:remove(other)
122
chooseTarget = function (self)
124
x = math.random(the.bg.width),
125
y = math.random(the.bg.height)
b'\\ No newline at end of file'
added
removed
enemy.lua
