|
|
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
×
) J+ ^6 S5 w0 o; Z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。+ z* \ p/ H1 W( ?- E# U! u
- importPackage (java.lang); v( I8 r9 O+ h4 d% Q
- importPackage (java.awt);6 B7 M3 D* }* h. D3 ^
- 3 H; l; o( y. X7 m, w) v+ \6 l! W% S
- include(Resources.id("mtrsteamloco:library/code/face.js"));
5 F1 B, Q7 C. K6 v: B
/ \4 W/ O( z2 [0 f; ~- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);% N: m1 y7 [7 a+ q1 u' i5 Q
9 v4 p# R7 ]: t: x# }2 k- function getW(str, font) {
% O+ F H. d0 ~+ h/ B - let frc = Resources.getFontRenderContext();
: T: @( H; t( ], F. a. }& R - bounds = font.getStringBounds(str, frc);2 }1 a$ T5 N; d( v6 r% n6 a7 a
- return Math.ceil(bounds.getWidth());& f2 ]- X$ K F1 r, I; {
- }
. l/ ]0 X0 b; m& B - ! ~7 _% i( v8 J0 _* [ e( y( s
- da = (g) => {//底图绘制
2 B7 I) j, i2 k& a - g.setColor(Color.BLACK);
$ X5 S3 [: c0 X% N - g.fillRect(0, 0, 400, 400);
$ Y. o9 @% I4 L4 f: g - }
7 H. V8 V7 h5 U# Z2 W% } - ; h6 [% A# }' I# f
- db = (g) => {//上层绘制
8 V) H. f2 Z) R. z6 g$ h- w - g.setColor(Color.WHITE);. l2 W8 k: N$ ? v, T
- g.fillRect(0, 0, 400, 400);
i" y8 F- M, \5 H - g.setColor(Color.RED);
# ]6 Z: u; X' X5 a) f - g.setFont(font0);
7 m8 R+ |1 W8 V3 C' e2 L/ O( I& ^ - let str = "晴纱是男娘";
) s, R, h. H5 |0 N - let ww = 400;; D5 D5 m6 P+ w& C* V9 ^( k; E
- let w = getW(str, font0);
- R6 {8 v" |: w+ Z$ z7 O1 u - g.drawString(str, ww / 2 - w / 2, 200);8 |! B) H1 L/ e9 c1 r
- }1 T4 J- Z% `# P" k$ E [2 m
- 5 f: p! i) r( s$ O) M/ S8 t6 Z8 x" c
- const mat = new Matrices();& ]' t% J( b2 T6 B q! r
- mat.translate(0, 0.5, 0);
( ?$ _6 s8 }! ?" |7 @ - * I0 A9 {' y3 b
- function create(ctx, state, entity) {2 C1 @* g) u0 R4 i0 |
- let info = {6 s4 M1 b$ ~# q$ I; s
- ctx: ctx,
; `3 E J& q, E - isTrain: false,7 w5 _2 @* X3 I6 ?) M$ s
- matrices: [mat],
7 p1 V' J: Q4 u6 y - texture: [400, 400],
) y0 K4 |) T6 L - model: {$ S$ ?# O4 p( S! z. S: L8 R
- renderType: "light",
$ R" G' o# A8 B8 L! V - size: [1, 1],
1 I# _; f2 U9 T4 `1 q - uvSize: [1, 1]/ E# G! o7 k0 D& R& V
- }2 R, i6 m" d" P* C$ ?/ M
- }
5 s) t4 P/ R! v( [ - let f = new Face(info);
4 b9 f/ U# g8 p# f: c/ \1 H* y - state.f = f;6 w b9 A0 T) m, M7 Y( E
- 5 \$ t' ?/ S8 \3 q& d0 n
- let t = f.texture;
; q A1 Y2 P) E o - let g = t.graphics;
3 H/ e: _4 Q; O- } - state.running = true;
# }3 h$ F0 y z) r: Q2 j; \ - let fps = 24;. L& x) P2 M a6 a6 G7 E
- da(g);//绘制底图* l5 T4 z$ M- q! f7 S( w- h
- t.upload();
4 \! Y4 A& F! k' ~ - let k = 0;2 h( g9 a5 g4 Q
- let ti = Date.now();
8 m7 u* H* V/ C" h, f( ^, c - let rt = 0;
: u; Z9 z/ }9 o* ~7 g - smooth = (k, v) => {// 平滑变化3 m/ {& k; T& b" F6 R+ e
- if (v > k) return k;1 |$ d2 \3 ~& K8 i( N
- if (k < 0) return 0;- d5 g: x1 ]2 s" w
- return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;1 l4 g' n# X5 k' S/ x+ d7 n
- }
, j8 j! k) V6 Y9 W: t F8 S - run = () => {// 新线程5 i0 n+ l% P, V8 Y
- let id = Thread.currentThread().getId();" g$ q/ n& j. L, c( m
- print("Thread start:" + id);
: c4 g4 O# U1 V - while (state.running) {( x+ s& X$ f1 x& J0 e% k
- try {+ Y& a& b/ @+ s( r
- k += (Date.now() - ti) / 1000 * 0.2;
5 ^4 T; t8 W- d2 v l5 n+ Q - ti = Date.now();
4 E7 |7 T. y, r& [2 x - if (k > 1.5) {+ U i4 ~' f( T9 O2 G! w3 a
- k = 0;, M' U7 A' n4 |" g
- }
- V7 S6 {( c- ^- ^3 g' y - setComp(g, 1);) n+ {5 [% R% \ o4 q9 F
- da(g);
% ?2 k5 u( d( A* ?2 Q, Z - let kk = smooth(1, k);//平滑切换透明度
; r- w2 D2 }, ?: D) K - setComp(g, kk);8 T! d" k2 n0 p
- db(g);1 n. m7 c; P u1 d2 X: n
- t.upload();8 z+ S+ N* e8 q. Q. N) J
- ctx.setDebugInfo("rt" ,Date.now() - ti);
0 \7 Q! ^, l- L7 ? - ctx.setDebugInfo("k", k);7 j/ G3 N9 f& T3 P; R q+ z# V
- ctx.setDebugInfo("sm", kk);
# y, S- }/ ~* ?- [& o; _9 X - rt = Date.now() - ti;
' l; @( {" T, K5 Z - Thread.sleep(ck(rt - 1000 / fps));
3 X8 s2 d ]3 ], _/ a - ctx.setDebugInfo("error", 0)$ h; K: G$ X, B+ l3 B" `, L1 I6 o% w
- } catch (e) {4 y' d6 L' \- x. q! C# k; @
- ctx.setDebugInfo("error", e);
- p, j) X$ r9 s/ q1 I( o7 f - }' S: L; b" O- `9 b: C2 ?
- }
7 l$ v) o' m% [: d- E2 f, r - print("Thread end:" + id);
0 L( o2 [ ?* H; M% L: o# R - }
# o4 @$ j. `- s: `7 T" p9 c - let th = new Thread(run, "qiehuan");
$ Y" A- C/ f8 g( M1 `9 i1 a - th.start();1 U6 Q% U2 M; n. p! v, ]3 V
- }/ T7 x1 h4 Q ^$ [# e
- / S& n; B( A1 |5 E% o
- function render(ctx, state, entity) {
& F; \7 M/ j- E% J r - state.f.tick();" A( P4 e9 U1 |4 X
- }4 Q# v" v2 r& u
- 9 t4 o3 L9 R: a$ Z; p
- function dispose(ctx, state, entity) {
2 R9 k$ D+ z7 A f# x7 K9 Q - print("Dispose");
9 ]& [5 {$ M: |0 T" J6 M& V - state.running = false;( F/ i+ o2 p( ^( m$ }2 [
- state.f.close();. L2 C/ A6 a( f$ F4 y ?
- }
7 J: t* I8 K* I7 D8 y' g# Q! b. f; p - : g) \2 m7 o. @ x
- function setComp(g, value) {" Y7 U# ~. U# [1 l$ l) N( Z+ `
- g.setComposite(AlphaComposite.SrcOver.derive(value));' t& E! T8 }1 v' I* e
- }
复制代码
1 s$ R( h; U0 E# B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。
# @: c+ R4 |' d9 [3 h" o
! p$ f- X, P( E% @* ]/ i1 o% p) {+ f1 c( `7 m, K8 P
顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)
9 O" l, c) C X# v% { |
|