|
|
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
×
( E0 T5 B9 d* M. T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。) e, o5 H, |) C+ J% N/ k3 I
- importPackage (java.lang);+ O0 G F: \% x7 E5 E( x& m
- importPackage (java.awt);& E1 x% H! J4 s6 y0 ?
8 }9 r% A1 ^0 e! D: P7 y' J( e- include(Resources.id("mtrsteamloco:library/code/face.js"));
9 T: k. j3 {- m8 N
( C5 o& M# t: G H( C: t# U- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);
1 _. T5 |0 W& I- _9 F
, m* @- J# z! i- function getW(str, font) {
7 S; ~' f# ^' M: ^! g' J - let frc = Resources.getFontRenderContext();
* i+ v( W, I3 g% ^: \& w/ z/ g - bounds = font.getStringBounds(str, frc);
; E8 K; p- }- m0 W8 \8 y1 W% D - return Math.ceil(bounds.getWidth());
' p \- j/ O, Z# H* H; _+ B p - }% g+ _ Y, T2 ^5 P" ?, v
- + K2 b3 K, q& I; j+ Y# t
- da = (g) => {//底图绘制& l; A: f* z8 A3 h3 w( J* T* M
- g.setColor(Color.BLACK);
$ \; @& J3 `. w% L& G - g.fillRect(0, 0, 400, 400);- ?& Q+ h% X9 A& I! T* U
- }
5 Z$ n; m1 [ ?1 u - : A8 l8 \. c& T( a
- db = (g) => {//上层绘制' U3 Y! j# L7 w' G* _+ D* i* @
- g.setColor(Color.WHITE);+ Q6 X) @2 n) K" h) o% B' J
- g.fillRect(0, 0, 400, 400);
! W4 g) L3 {& f) }5 n1 y8 B - g.setColor(Color.RED);$ G1 ?) A# R) c, L9 h( s/ B
- g.setFont(font0);3 j6 S! ^$ Y+ l9 \7 m& _1 o; w. B
- let str = "晴纱是男娘";) Y2 ^, C5 p: E( R
- let ww = 400;
3 ]; R9 L9 W V+ F0 N - let w = getW(str, font0);8 U- I( ]4 R* b9 c
- g.drawString(str, ww / 2 - w / 2, 200);
2 C K8 j, R3 ?- Y8 B4 _6 G9 l0 ~ F - }
* \) K6 w9 l' I, \. c - A: g7 g+ U4 B4 _, i
- const mat = new Matrices();7 r' u4 g6 R. _0 ^5 o: @
- mat.translate(0, 0.5, 0);5 ~: ?* a4 k( p2 M4 t% W
- 7 S" a+ x- f. F3 J
- function create(ctx, state, entity) {6 y% @3 N i+ V3 W
- let info = {
1 i" T4 J4 C& p8 p" y- ]) J - ctx: ctx,
8 o2 G/ C6 h$ @; m6 X - isTrain: false,
* m1 M; z9 t6 w0 S) }: G; [% R1 a1 B - matrices: [mat],
8 q: }: F" W# J1 A - texture: [400, 400],
3 X% v( ^3 J0 b8 q4 S& t - model: {. Q8 L8 t8 `8 T
- renderType: "light",
. q) t; P4 b# C - size: [1, 1],# z) }; g' [ H, F" R0 @: D. y+ j
- uvSize: [1, 1]
- F/ s' V" K) b, g! ] - }
. q, F' l7 n3 u& u9 R6 @ - }
# N0 V4 z e, k/ h, j' n - let f = new Face(info);, @+ |* o! M5 T! K4 l" P, X
- state.f = f;
8 J* j8 X8 u2 L" g8 K' |
% r7 _- _% `! j6 c3 v7 g1 X- let t = f.texture;) H, C$ P4 i. Y4 v7 b
- let g = t.graphics;) L8 N& m) F e v( R( J
- state.running = true;
2 [; ^+ v Y! S" a( x: b$ R2 d - let fps = 24;
4 z* J W+ o1 U6 d, X6 l! d - da(g);//绘制底图
- t5 h! X, S. G, l - t.upload();
3 K3 `1 I0 T6 G6 s9 A3 ^ - let k = 0;
) W; g6 I* ~1 @1 H* W; `% `- A - let ti = Date.now();
5 k1 V! o6 g+ v, a - let rt = 0;4 T/ C( M f. `! w5 E# `$ d
- smooth = (k, v) => {// 平滑变化" P$ g/ i$ D$ ^8 x4 I
- if (v > k) return k;- y: m5 w0 b5 b. `" _$ N
- if (k < 0) return 0;
8 c/ P( n7 d3 d. H1 c - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;
/ e m% m2 j& c: H3 K, h$ j% w: E - }
2 v( I! O9 M5 F5 D! D# y - run = () => {// 新线程, z* K* A) |* F8 F9 n; m* K X
- let id = Thread.currentThread().getId();8 Z3 P0 T+ }3 M! q* K. o, p
- print("Thread start:" + id);' {& d4 [3 S# u* t4 F* [' O$ J
- while (state.running) {9 h7 O; O$ l7 V5 i
- try {
9 Y- M3 i# P/ d. S& J - k += (Date.now() - ti) / 1000 * 0.2;
& S6 ~/ P5 ~; Q - ti = Date.now();6 _$ O& ^, m6 C% P1 b i$ l
- if (k > 1.5) {
: ^8 n8 g1 [( x7 @0 U. ]# L* ` - k = 0;
9 i% j/ i8 E/ i; J0 B - }
1 m3 v3 k5 ]3 z2 m0 t2 q" u9 J- U5 f4 | - setComp(g, 1);" _) B! p, b- b/ Y5 D
- da(g);
3 K% n. }/ N. ^3 l - let kk = smooth(1, k);//平滑切换透明度) I& ~: T6 ^( m" R5 W5 z+ z
- setComp(g, kk);, S! @3 Z% ]. P V1 H$ }: c# x) M
- db(g);
$ B5 E, f8 ] w - t.upload();$ e9 t9 m# A. Z# R3 B6 ?( g1 S
- ctx.setDebugInfo("rt" ,Date.now() - ti);
' V$ x! `. b* ]4 A" q! E& F' g - ctx.setDebugInfo("k", k);. l- G) B+ L$ P* Z9 z. \" }
- ctx.setDebugInfo("sm", kk);
7 W) k; G/ W3 [3 ] - rt = Date.now() - ti;. l9 d# I' p- b4 x+ c, i# ]' J$ e
- Thread.sleep(ck(rt - 1000 / fps));5 L: i& \3 f$ a/ q6 c
- ctx.setDebugInfo("error", 0)6 i% \- L% g, u* R+ y& Q
- } catch (e) {
# c9 {: {* ~2 g+ C1 a. X7 u1 n) r' k2 q - ctx.setDebugInfo("error", e);* g; w# o% \; b7 u {
- }
4 U8 Q6 \" a2 M) y; g; G% W - }! m- O( K$ k% d
- print("Thread end:" + id); @5 ~4 t6 W) ]0 R/ _, F
- }
0 M: v$ R3 r: @& L# e - let th = new Thread(run, "qiehuan");3 g' J- l" F/ b# K" u8 ~1 b0 T
- th.start();
% ^( { h$ |3 g8 P; x! ~+ w3 T* }7 s - }+ P5 G& D! d7 d/ v) ~( ]
- ' z/ R/ o5 Z2 }' `
- function render(ctx, state, entity) {
" P; ?0 M* m* O2 D- v# Q5 _ - state.f.tick();
! Q) W9 X5 h( B: H0 L/ l - }
9 w* d) _. k1 s" o1 I) @7 K6 g
- M7 T) y/ ^' D+ Y. j1 S- function dispose(ctx, state, entity) { _' K6 G; F3 J! z% z3 B+ Q6 w
- print("Dispose");+ k) A) T; v% P) ^& A" m8 q
- state.running = false;
0 V7 T0 E) g9 q, L* m1 \ - state.f.close();
# K9 L) p. u' s# Y, L* |! k - }$ o$ e3 ~+ a7 L7 f6 c) b
0 t: m$ h0 C# x& n$ z: q5 g- V. }6 o- function setComp(g, value) {
% @" Y- `6 f7 l: t2 |, U - g.setComposite(AlphaComposite.SrcOver.derive(value));
8 e. {8 N- G A" D - }
复制代码 4 h7 K0 @, J2 R% Y, i# _6 z
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。
: R/ S) a! \: H. j1 B( @& {2 ?# L! w0 l7 h9 p* u7 g" f" E& `
- S' B; m& u+ f, y+ h+ M, W
顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)) A( w$ m5 W8 y* V$ T1 C
|
|