31
shortestVector = function(from, to)
33
if from.x < the.app.width / 2 or
34
from.x > the.bg.width - the.app.width / 2 or
35
from.y < the.app.height / 2 or
36
from.y > the.bg.height - the.app.height / 2 then
37
error('"from" coordinate out of bounds: X='..from.x..' Y='..from.y)
40
if to.x < the.app.width / 2 or
41
to.x > the.bg.width - the.app.width / 2 or
42
to.y < the.app.height / 2 or
43
to.y > the.bg.height - the.app.height / 2 then
44
error('"to" coordinate out of bounds: X='..to.x..' Y='..to.y)
48
-- normalize grid to account for mirror zones
49
local fx = from.x - the.app.width / 2
50
local fy = from.y - the.app.height / 2
51
local tx = to.x - the.app.width / 2
52
local ty = to.y - the.app.height / 2
57
if math.abs(tx - fx) < math.abs(tx - fx - (the.bg.width - the.app.width)) then
58
-- straight path is shorter
61
short.x = tx - fx - (the.bg.width - the.app.width)
65
if math.abs(ty - fy) < math.abs(ty - fy - (the.bg.height - the.app.height)) then
66
-- straight path is shorter
69
short.y = ty - fy - (the.bg.height - the.app.height)
72
return vector.new(short.x, short.y)
33
76
GameView = View:extend {
63
106
self:add(the.enemies)
66
local e = Enemy:new{x = math.random(the.bg.width),
67
y = math.random(the.bg.height)}
68
--local e = Enemy:new{x=the.bg.width / 2, y=the.bg.height / 2}
70
self:add(e.thrust) -- why doesn't this work in Enemy.new?
108
local e = Enemy:new{x=400, y=300}
109
--local e = Enemy:new{x=the.bg.width / 2, y=the.bg.height / 2}
111
self:add(e.thrust) -- why doesn't this work in Enemy.new?
74
114
self:add(the.bullets)
75
115
self:add(the.indicators)
76
116
self:add(the.interface)
78
for _ = 1, math.random(3, 6) do
118
for _ = 1, math.random(6) do
79
119
local planet = Planet:new{
80
120
x = math.random(the.app.width / 2,
81
121
the.bg.width - the.app.width / 2),
89
129
the.cursor = Cursor:new()
90
130
self:add(the.cursor)
93
y = the.app.height / 2,
94
width = the.app.width,
100
the.interface:add(the.over)
103
the.instructions = Text:new{
104
y = the.app.height / 2 + 32,
105
width = the.app.width,
108
text = "Press Enter to start a new game\nPress Q to quit",
111
the.interface:add(the.instructions)
113
132
love.mouse.setGrab(true)
114
133
love.mouse.setVisible(false)
115
134
love.mouse.setPosition(the.app.width / 2, the.app.height / 2)