bzr branch
/bzr/traderous
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65
by Josh C
enemy is back |
1 |
-- player = 300 accel, 400 velLimit
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2 |
local accelLimit = 150 |
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75
by Josh C
bigger space, slower movement, maintain enemy density |
3 |
local velLimit = 300 |
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7
by Josh C
enemy |
4 |
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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65
by Josh C
enemy is back |
8 |
lastFired = 0, |
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71
by Josh C
enemy "patrol path" (pick random destination) |
9 |
state = 'patrolling', |
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65
by Josh C
enemy is back |
10 |
onNew = function (self) |
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self.thrust = Tile:new{image = 'data/thrust.png'} |
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66
by Josh C
enemy thrust |
12 |
--the.app.view:add(self.thrust)
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69
by Josh C
enemy shields and death |
13 |
self.shield = Shield:new{ship = self} |
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71
by Josh C
enemy "patrol path" (pick random destination) |
14 |
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self:chooseTarget() |
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65
by Josh C
enemy is back |
16 |
end, |
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onStartFrame = function (self) |
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||
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72
by Josh C
add enemy state switch |
19 |
local tvec = vector.new(self.target.x - self.x, |
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71
by Josh C
enemy "patrol path" (pick random destination) |
20 |
self.target.y - self.y) |
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65
by Josh C
enemy is back |
21 |
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67
by Josh C
rotate enemy ship slower |
22 |
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72
by Josh C
add enemy state switch |
23 |
local tAngle = math.atan2(tvec.y, tvec.x) |
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local aDiff = self.rotation - tAngle |
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67
by Josh C
rotate enemy ship slower |
25 |
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26 |
while aDiff < (-math.pi) do |
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27 |
--print(aDiff .. ' < -π')
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28 |
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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36 |
-- rotation really shouldn't be negative. I
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37 |
-- 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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65
by Josh C
enemy is back |
43 |
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72
by Josh C
add enemy state switch |
44 |
if self.state == 'combat' and not the.player.active then |
45 |
self.state = 'patrolling' |
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end
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47 |
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local pdist2 = vector.new(the.player.x - self.x, |
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the.player.y - self.y):len2() |
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50 |
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51 |
if pdist2 < (the.app.width / 2)^2 then |
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52 |
-- if player is roughly on enemy's screen
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89
by Josh C
"safe" zone on planets - no new enemies will track you if you're there. |
53 |
if self.state == 'patrolling' and the.player.active and not the.player.onPlanet then |
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72
by Josh C
add enemy state switch |
54 |
self.state = 'combat' |
55 |
self.target = the.player |
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end
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75
by Josh C
bigger space, slower movement, maintain enemy density |
57 |
elseif pdist2 > (3 * the.app.width)^2 then |
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72
by Josh C
add enemy state switch |
58 |
if self.state == 'combat' then |
59 |
self.state = 'patrolling' |
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self:chooseTarget() |
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end
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end
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63 |
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local tdist2 = tvec:len2() |
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||
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if tdist2 > 400^2 then |
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65
by Josh C
enemy is back |
67 |
self.acceleration = vector.new(300, 0) |
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self.acceleration:rotate_inplace(self.rotation) |
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69 |
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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||
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72
by Josh C
add enemy state switch |
75 |
if tdist2 < 400^2 then |
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71
by Josh C
enemy "patrol path" (pick random destination) |
76 |
if self.state == 'patrolling' then |
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self:chooseTarget() |
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elseif self.state == 'combat' then |
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if math.abs(aDiff) < 0.5 * math.pi 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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source = self |
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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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65
by Josh C
enemy is back |
91 |
end
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end, |
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7
by Josh C
enemy |
94 |
onUpdate = function(self) |
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65
by Josh C
enemy is back |
95 |
self.thrust.x = self.x - self.width |
96 |
self.thrust.y = self.y |
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self.thrust.rotation = self.rotation |
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end, |
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69
by Josh C
enemy shields and death |
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onCollide = function (self, other) |
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if other:instanceOf(Bullet) and other.source ~= self then |
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if self.shield.strength == 0 then |
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-- die
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the.app.view:add( Boom:new { |
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x = self.x, |
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y = self.y, |
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velocity = { rotation = 5 } |
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})
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108 |
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self:die() |
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self.thrust:die() |
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self.shield:die() |
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the.enemies:remove(self) |
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the.app.view:remove(self.thrust) |
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114 |
the.app.view:remove(self.shield) |
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80
by Josh C
respawn enemies |
115 |
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94
by Josh C
track kills |
116 |
if other.source == the.player then |
117 |
the.player.kills = the.player.kills + 1 |
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end
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119 |
||
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80
by Josh C
respawn enemies |
120 |
-- and add a new enemy somewhere else...
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121 |
local e = Enemy:new{x = math.random(the.bg.width), |
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122 |
y = math.random(the.bg.height)} |
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the.enemies:add(e) |
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the.view:add(e.thrust) |
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125 |
the.view:add(e.shield) |
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69
by Josh C
enemy shields and death |
126 |
else
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127 |
self.shield:onHit() |
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128 |
end
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129 |
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130 |
other:die() |
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131 |
the.bullets:remove(other) |
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132 |
end
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71
by Josh C
enemy "patrol path" (pick random destination) |
133 |
end, |
134 |
chooseTarget = function (self) |
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135 |
self.target = { |
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136 |
x = math.random(the.bg.width), |
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y = math.random(the.bg.height) |
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}
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end
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7
by Josh C
enemy |
140 |
}
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