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1 | !752 |
2 | |
3 | !include #1000522 // image helper functions |
4 | |
5 | static RGBImage targetImg; |
6 | |
7 | static class Runner {
|
8 | S strategy; |
9 | S bestScript; |
10 | double score; |
11 | long tries; |
12 | } |
13 | |
14 | static ImageSurface imageSurface; |
15 | |
16 | static L<S> strategies = litlist( |
17 | "random;", |
18 | "random; vary;" |
19 | ); |
20 | |
21 | static S metaStrategy = "race strategies to 100%"; |
22 | |
23 | static double score, targetScore; |
24 | static new L<Runner> runners; |
25 | static boolean warned; |
26 | static long startTime; |
27 | |
28 | p {
|
29 | targetImg = new RGBImage(200, 200, Color.blue); |
30 | |
31 | startTime = now(); |
32 | new Matches m; |
33 | if (jmatch("race strategies to *%", metaStrategy, m)) {
|
34 | targetScore = parseDouble(m.get(0)); |
35 | makeRunners(); |
36 | while (score < targetScore) {
|
37 | // TODO: fair time sharing? |
38 | for (Runner r : runners) |
39 | step(r); |
40 | } |
41 | } else |
42 | fail("Unknown meta strategy: " + metaStrategy);
|
43 | } |
44 | |
45 | static void step(Runner r) {
|
46 | for (L<S> s : statements(r.strategy)) {
|
47 | if (jmatch("random;", s)) {
|
48 | S scriptSchema = "fill(<color1>);"; |
49 | tryScript(r, makeScript(scriptSchema)); |
50 | } else if (jmatch("vary;", s)) {
|
51 | if (r.bestScript != null) {
|
52 | S variation = varyScript(r.bestScript); |
53 | if (variation != null && neq(r.bestScript, variation)) |
54 | tryScript(r, variation); |
55 | } |
56 | } else if (!warned) {
|
57 | print("Unknown strategy statement: " + join(s));
|
58 | warned = true; |
59 | } |
60 | } |
61 | } |
62 | |
63 | static S varyScript(S script) {
|
64 | L<S> tok = javaTok(script); |
65 | for (int i = 1; i < l(tok); i += 2) |
66 | if (isQuoted(tok.get(i))) {
|
67 | S s = unquote(tok.get(i)); |
68 | tok.set(i, quote(varyColor(s))); |
69 | } |
70 | ret join(tok); |
71 | } |
72 | |
73 | static S varyColor(S color) {
|
74 | ret varyColor(new RGB(color)).toString(); |
75 | } |
76 | |
77 | static void tryScript(Runner r, S script) {
|
78 | ++r.tries; |
79 | //print ("Script: " + script);
|
80 | RGBImage img = new RGBImage(200, 200, Color.white); |
81 | render(img, script); |
82 | double newScore = diffToPercent(diff(img, targetImg)); |
83 | if (newScore > r.score) {
|
84 | r.score = newScore; |
85 | r.bestScript = script; |
86 | if (newScore > score) {
|
87 | score = newScore; // global score |
88 | imageSurface = showImage(img, imageSurface); |
89 | print("Try " + r.tries + " of runner " + (runners.indexOf(r)+1) + " after " + (now()-startTime+999)/1000 + "s. New best score: " + score + ", script: " + script);
|
90 | } |
91 | } |
92 | } |
93 | |
94 | // assumes diff is between 0.0 (full score) and 1.0 (least score) |
95 | static double diffToPercent(double diff) {
|
96 | ret 100*(1-diff); |
97 | } |
98 | |
99 | static S makeScript(S schema) {
|
100 | L<S> tok = javaTok(schema); |
101 | int i = findCodeTokens(tok, "<", "color1", ">"); |
102 | if (i >= 0) {
|
103 | clearAllTokens(tok, i, i+5); |
104 | tok.set(i, quote(randomColor().toString())); |
105 | tok = javaTok(tok); |
106 | } |
107 | ret join(tok); |
108 | } |
109 | |
110 | static void render(RGBImage img, S script) {
|
111 | L<S> tok = javaTok(script); |
112 | new Matches m; |
113 | for (L<S> s : statements(tok)) {
|
114 | if (jmatch("fill(*);", s, m)) {
|
115 | fill(img, m.unq(0)); |
116 | } else |
117 | fail("unknown statement: " + join(s));
|
118 | } |
119 | } |
120 | |
121 | static void makeRunners() {
|
122 | for (S s : strategies) {
|
123 | new Runner r; |
124 | r.strategy = s; |
125 | runners.add(r); |
126 | } |
127 | } |
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| Snippet ID: | #1001883 |
| Snippet name: | Image rendering from random scripts v3, with metastrategy, developing |
| Eternal ID of this version: | #1001883/1 |
| Text MD5: | 2994611ac5632de4999d3406dd5fbabb |
| Transpilation MD5: | bb84ba2202b954f6eebe7da8219d37b4 |
| Author: | stefan |
| Category: | javax |
| Type: | JavaX source code |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2015-12-01 22:14:04 |
| Source code size: | 3160 bytes / 127 lines |
| Pitched / IR pitched: | No / Yes |
| Views / Downloads: | 590 / 598 |
| Referenced in: | [show references] |