blob: 01f882d745727a77ca13e1f9158a1971982374a8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
(local state (require :lib.state))
(local cell (require :lib.cell))
(local cells (require :lib.cells))
(local fv (require :fennel.view))
(fn lerp* [a b c d x]
(+ c (* (/ (- x a) (- b a)) (- d c))))
(fn vec-sub [a b]
{:x (- a.x b.x)
:y (- a.y b.y)})
(fn vec-lerp* [a b c d x]
{:x (lerp* a.x b.x c.x d.x x.x)
:y (lerp* a.y b.y c.y d.y x.y)})
(fn new-grid [w h f]
(var t {})
(for [x 0 (- w 1)]
(tset t x {})
(for [y 0 (- h 1)]
(tset (. t x) y (f x y))))
t)
(fn update [self]
(set self.ship.x (+ self.ship.x 0.02))
(set self.ship.y (+ self.ship.y 0.005))
(set self.radius (lerp* 0 1 self.radius self.target-radius 0.3))
(when (= self.tick 0)
(for [x 0 (- self.width 1)]
(for [y 0 (- self.height 1)]
(fn get [v]
(. self.grid
(% (+ v.x x) self.width)
(% (+ v.y y) self.height)))
(if (. self.grid x y)
;; check if alive
(tset self.grid-alt x y (cell.update (. self.grid x y)
get))
;; check for neighbors and then use one at random
(do
(var neighbors [])
(for [x -1 1]
(for [y -1 1]
(table.insert neighbors (get {: x : y}))))
(if (. neighbors 1)
(tset self.grid-alt x y
(cell.birth (. neighbors (math.random (length neighbors))) get))
(tset self.grid-alt x y nil))))))
(set (self.grid self.grid-alt) (values self.grid-alt self.grid)))
;; TODO
(set self.tick (% (+ self.tick 1) self.rate)))
(fn id [x] x)
(fn draw [self]
(local (width height) (love.graphics.getDimensions))
;; (love.graphics.scale width height)
(let [camera-size (math.min width height)
radius-x (* self.radius (/ width camera-size))
radius-y (* self.radius (/ height camera-size))
clipped-x (math.min radius-x self.max-radius)
clipped-y (math.min radius-y self.max-radius)
display-a {:x (* width (- 1 (/ clipped-x radius-x)) 0.5)
:y (* height (- 1 (/ clipped-y radius-y)) 0.5)}
display-b {:x (- width display-a.x) :y (- height display-a.y)}
display-size (vec-sub display-b display-a)
camera-a {:x (- self.ship.x clipped-x)
:y (- self.ship.y clipped-y)}
camera-b {:x (+ self.ship.x clipped-x)
:y (+ self.ship.y clipped-y)}
cell-box (vec-lerp* {:x 0 :y 0}
{:x (* 2 clipped-x)
:y (* 2 clipped-y)}
;; TODO: this is wrong
{:x 0 :y 0}
display-size
{:x 1 :y 1})]
(love.graphics.setScissor (- display-a.x 1) (- display-a.y 1)
(- display-b.x display-a.x -2)
(- display-b.y display-a.y -2))
(love.graphics.setColor 0.2 0.2 0.2)
(love.graphics.setLineWidth 4)
(love.graphics.rectangle :line
display-a.x display-a.y
(- display-b.x display-a.x)
(- display-b.y display-a.y))
(love.graphics.setScissor display-a.x display-a.y
(- display-b.x display-a.x)
(- display-b.y display-a.y))
(love.graphics.clear)
(for [x (math.floor camera-a.x) (math.floor camera-b.x)]
(for [y (math.floor camera-a.y) (math.floor camera-b.y)]
(let [vec {:x (% x self.width) :y (% y self.height)}
render-a (vec-lerp* camera-a camera-b display-a display-b
{: x : y})
render-b (vec-lerp* camera-a camera-b display-a display-b
{:x (+ x 1) :y (+ y 1)})
the (. self.grid vec.x vec.y)
color (and the (cell.color the))]
(when color
(love.graphics.setColor (unpack color))
(love.graphics.rectangle :fill
(id render-a.x)
(id render-a.y)
(id cell-box.x)
(id cell-box.y))))))
;; draw other stuff
))
;; (love.graphics.setLineWidth 0.1)
;; (love.graphics.line 0 0 0.3 0.3)
;; (love.graphics.polygon :line 0.3 0.3 0.6 0.3 0.4 0.6)
;; (love.graphics.line 0.4 0.8 0.4 0.8)
;; (love.graphics.print :Gaming))
(fn keypressed [self key scancode repeat]
(when (= key "=")
(set self.target-radius
(math.max
self.min-radius
(math.min
self.max-radius
(- self.target-radius 4)))))
(when (= key "-")
(set self.target-radius
(math.max
self.min-radius
(math.min
self.max-radius
(+ self.target-radius 4))))))
(fn init [self]
(local width 64)
(local height 64)
(setmetatable
{:width width
:height height
:ship {:x 31 :y 31}
:radius 32
:target-radius 32
:max-radius (/ (math.min height width) 2)
:min-radius 16
:tick 0
:rate 6
:grid (new-grid width height #(if (= (math.random 6) 1)
(if (< $1 52)
(cell.init cells.life)
(cell.init cells.brain))
nil))
:grid-alt (new-grid width height #nil)
}
self))
{state.draw draw state.init init state.update update state.keypressed keypressed}
|
