|
|
还没有账号?赶快去注册吧!
您需要 登录 才可以下载或查看,没有账号?立即注册
×
3 i1 E5 p/ I1 C1 f3 g这些天想了想怎么给LCD做丝滑的动画,稍微想了想,便有了下面这些代码。# O1 ^4 C% E% ^4 s3 f7 D: y
- importPackage (java.lang);
; q, u5 V2 V2 C. u. ^9 u8 b. t - importPackage (java.awt);
4 `7 f& P7 Z V) g$ ~& ~6 n1 n
4 n& I# J# W9 q$ W1 m- include(Resources.id("mtrsteamloco:library/code/face.js"));
8 M' B, w$ I. e7 j- n8 m - $ U% q# _8 @, k$ `" ` Z
- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);! y6 C. T$ \" _8 ~& A- H/ X
- , z# ]0 d# p4 c$ Y: r
- function getW(str, font) {4 {7 k3 L- H) X5 m4 M- H% r0 D
- let frc = Resources.getFontRenderContext();
& l, J" l: i m; ]9 T! p - bounds = font.getStringBounds(str, frc);
' X7 U% J# }6 x! x - return Math.ceil(bounds.getWidth());
4 P6 U8 L3 d8 L' Q* ]3 N( I - }
# {6 \" z5 Z2 c. J' p0 b
0 S2 ~4 g' I& o0 B- da = (g) => {//底图绘制
) T+ z7 j- `9 h- ~6 }1 ]; | - g.setColor(Color.BLACK);8 @/ Y) d4 J7 A6 j9 k- ~
- g.fillRect(0, 0, 400, 400);$ h( [; ^3 p* `: W
- }7 i1 U4 y/ f) b" {4 N
- 1 q7 q" e( {1 ]; g2 o D
- db = (g) => {//上层绘制
P1 g) M3 w8 n& x - g.setColor(Color.WHITE);5 O% Q1 A5 Q; z
- g.fillRect(0, 0, 400, 400);
' d0 ]) t1 [. L - g.setColor(Color.RED);
- C7 r8 s4 f# N& o/ p0 U - g.setFont(font0);
& w6 u* \6 w4 c @* `: \ - let str = "晴纱是男娘";' j9 Y, o! [/ L- ^ r7 g& k3 r# x
- let ww = 400;1 W# i' p. l% q' u0 A1 B( T' S% i
- let w = getW(str, font0);
0 @% L9 ^' u( z - g.drawString(str, ww / 2 - w / 2, 200); F% ?, _* h* Q- J( L0 x0 d8 }( L
- }& w; ~6 f& p v W2 R
- 7 \9 X# c* q" `( D" |# o! n
- const mat = new Matrices();
. B7 J) ~5 V* \4 ? - mat.translate(0, 0.5, 0);8 I) D8 r. s+ l% [, `
- ' F! R1 m3 O w. s# w
- function create(ctx, state, entity) {
: Q, e0 N! S* h+ t) Q0 ` - let info = {
7 H# t3 G+ q1 B4 c- B - ctx: ctx," T h0 c# ^- C: P. V
- isTrain: false,: j# D, R. _- H* c( Y; ~/ E6 f% S
- matrices: [mat],
6 {% o, l! R0 q, y6 d' R - texture: [400, 400],
% @. t( b( n! z% y - model: {
* W' O: }8 n8 D" h" y3 q# X. W - renderType: "light",+ v& j7 N) T o( Y7 l
- size: [1, 1],
: J% |2 v/ U% ] - uvSize: [1, 1]
# d9 q0 G S+ i4 U" O - }. ^; n; x! a2 H& E9 y4 j( e! x% S
- }6 k, P- T$ e b
- let f = new Face(info);& D$ d2 F; e0 C$ S5 x! j
- state.f = f;
( d4 g, A& r' c" U
" `6 D4 x9 Z0 C3 a E5 ?- let t = f.texture;
0 S- i. M3 V7 \# n - let g = t.graphics; J& q; {9 A7 Y D* r
- state.running = true;3 ], Q; x6 I3 t- V
- let fps = 24;
[$ e! E- ~# v+ o! W8 [; W - da(g);//绘制底图
8 v9 y# h6 a& G7 U - t.upload();8 X; `1 F9 u8 G# T6 f* Q, I
- let k = 0;
: @( I# S! @4 B( }; b - let ti = Date.now();5 Y6 l# ~# p- X! u! e& y, d4 j
- let rt = 0;& _1 _# c- \' R0 q$ \! ?
- smooth = (k, v) => {// 平滑变化
4 n. N v( H, c4 l+ A - if (v > k) return k;
. A1 ^0 Z/ l! I% K$ c. Q - if (k < 0) return 0;
( b; z' D( ]4 j) X2 U. p - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;
/ ?# w& W0 |$ R9 c! K - }& i0 N' C1 p" n9 z$ `9 @
- run = () => {// 新线程
" t; \& |3 K! n! q& l2 _# Q - let id = Thread.currentThread().getId();. c" b3 r1 t1 n6 }
- print("Thread start:" + id);( c- d, O. `4 o: S( T" G
- while (state.running) { H2 c; i3 [6 H: i# O) Z: d
- try {/ M4 H' P g1 R: f K7 x R* G
- k += (Date.now() - ti) / 1000 * 0.2;6 w* d/ @ o7 E
- ti = Date.now();' X; D3 C6 V5 Y8 \1 ?. w$ o
- if (k > 1.5) {
* x- Y E2 [6 k - k = 0;
; U7 U2 g, d- K - }+ V) n: t* i# u9 J0 t; b
- setComp(g, 1);( `$ O2 B8 r+ H7 Y; K, f Y, I
- da(g);
1 \1 Q, z1 ]( K9 W5 _* B. G9 `# z - let kk = smooth(1, k);//平滑切换透明度
& ~$ L1 ]8 h4 s1 n1 t7 b+ R. G- Y - setComp(g, kk);9 k/ ~2 N( G( I" X4 B) b }8 s$ ^" M
- db(g);0 ~/ Z: n2 n9 S0 P; ^7 g1 ?
- t.upload();0 n: w/ m# f* E3 ?
- ctx.setDebugInfo("rt" ,Date.now() - ti);
, h+ u% R9 V- r7 d - ctx.setDebugInfo("k", k);) {( o( z+ W5 h# G
- ctx.setDebugInfo("sm", kk);
& T4 H/ d) I% ?# a# V - rt = Date.now() - ti;" ?0 k" M2 V3 S- k
- Thread.sleep(ck(rt - 1000 / fps));
5 b; e; L( R2 x' o! [ - ctx.setDebugInfo("error", 0): s# |) h6 T0 u3 i. D, [
- } catch (e) {2 o) |+ |. [, d5 V5 u
- ctx.setDebugInfo("error", e);
& r$ _0 ]- H; c2 K9 n - }
2 P6 w0 V2 ~. |9 Y+ B! U+ l W - }+ K$ A" Y7 t1 A2 Y* _4 r# \) M
- print("Thread end:" + id);
4 o E, u" P, L' p! P3 E - }' {7 u+ q. T2 s; ^& v- E% I
- let th = new Thread(run, "qiehuan");
! z2 A2 c9 ^0 M: X, H - th.start();* ?& f! }7 q) ~0 w; J
- }
7 {! X- ^5 G+ K: j* \8 S - - l! q8 e2 k' l/ U$ y# p2 M
- function render(ctx, state, entity) {
7 r+ p7 f- p# p4 y/ h, d* {; I* p7 r - state.f.tick();
9 r) e9 f+ D- s! f4 { U7 Q, U" J - }
+ r# a% h, o) Y9 n+ {3 f - t9 A* p, Q3 I0 F
- function dispose(ctx, state, entity) {( q) Z7 ]: P2 s1 j2 m
- print("Dispose");
- n7 c: K' S; x& Q& M( [5 s - state.running = false;3 r, c9 t, y: \
- state.f.close();: b) Z1 s) n6 I
- }
% U( w- u6 H s: j( w7 a - 8 v6 ?, s& B! C5 B8 d/ a
- function setComp(g, value) {
3 ^- e" J+ V0 \/ {: s% X, b - g.setComposite(AlphaComposite.SrcOver.derive(value));
4 f9 N( f4 V$ l - }
复制代码 : t, ~( r2 g6 `+ t! M
写了这么久的js,我便渐渐发觉使用 render 来写更新内容有局限性,比如说会拉高延迟.....等等(但可能也没什么影响?)。在这里我用新建 Thread (线程) 然后在新的 Thread 里来处理图片更新逻辑,实现丝滑切换。
5 h5 f7 d% V8 G" N6 g9 f( p& }0 S# L& I4 B1 z1 B1 _
& X4 ]& G! `5 X* f顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)
8 i7 ?/ I$ ?* [5 P |
|