|
|
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
×
8 A W9 S4 ~2 c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。
5 O5 V6 i7 p C$ J; K8 h: S- importPackage (java.lang);& a1 x$ e6 s |4 u
- importPackage (java.awt); Z- K5 x8 m1 _2 o3 `% e5 y
- ' r i N: [) T% q; D
- include(Resources.id("mtrsteamloco:library/code/face.js")); ]7 H/ }# H7 k
$ R! a' G2 u9 D8 F5 s! _' N- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);& a! E( `# y: W) Y$ _
# D8 S$ ?# i* \5 w- function getW(str, font) {! q; q6 n" l$ Y3 Y; A( B* m- Z, A
- let frc = Resources.getFontRenderContext();5 a6 w j; I' t7 B/ N3 C A, k
- bounds = font.getStringBounds(str, frc);
% ~1 n" n/ s7 V A2 p) R - return Math.ceil(bounds.getWidth());5 Z; v6 c4 S; t$ N; S/ ~
- }* i1 P9 M1 s9 G1 d R$ w
- x4 @ {) m* W: F- I
- da = (g) => {//底图绘制
4 j5 _3 o; x3 V) m I( P( q - g.setColor(Color.BLACK);) C7 W* D' e, e
- g.fillRect(0, 0, 400, 400);
+ w9 F! R% a: ]) I - }! s7 D% R% p" ^1 @6 n0 j
- * f5 X* W* P. G% i0 l+ J, D" g
- db = (g) => {//上层绘制
7 a" C( y8 h0 H1 M. |+ ^ - g.setColor(Color.WHITE);# |8 G+ G" K% c' @
- g.fillRect(0, 0, 400, 400); l% U( v7 L- D7 ~, [
- g.setColor(Color.RED);9 k3 A/ h/ z! U9 E' U7 v8 _, l( Q% H- p
- g.setFont(font0);9 x0 k2 I4 k/ X( i' x
- let str = "晴纱是男娘";
8 g0 e0 h5 z3 j1 @6 n - let ww = 400;
' r2 \& c* T6 |; G4 @7 q - let w = getW(str, font0);5 J7 I K" t+ H% ]1 @' O
- g.drawString(str, ww / 2 - w / 2, 200);
# z9 R' T- g7 F) F$ X8 C; B - }4 e2 i/ T9 x0 x) e
- / _7 q6 k2 Z0 w7 T: n" G
- const mat = new Matrices();
% L) {, S" m/ {/ n - mat.translate(0, 0.5, 0);
: t7 J! q8 K8 W2 d: u
% }$ h, m. C3 v" a7 }' i4 P8 {- function create(ctx, state, entity) {
5 m; M& d- G# ?! Y$ D. T6 ], f5 b" s - let info = {
1 `; c' \! q, J8 S; z1 v6 Y4 k - ctx: ctx,; v% N( q+ I) k% u
- isTrain: false,
; d+ T& K3 _0 ^7 I" ` - matrices: [mat],* a, q& }* a0 r1 R. |
- texture: [400, 400], U* e" i M& J2 ?8 ?. E4 C! Q
- model: {
2 k! D' F u. K3 f/ C- X - renderType: "light",( L$ z _$ |' I
- size: [1, 1],
4 n) h* E& F( G* o2 } - uvSize: [1, 1]
2 L( \7 F2 s' [" o. }/ p - }7 P' M# g7 i! A
- }7 J' g3 h9 U/ J/ U8 e8 ^
- let f = new Face(info);" E0 D+ U9 ^7 a* j9 W/ w
- state.f = f;
w. a1 U8 k' d {/ L; |. ^
6 q& ~. ]% s' N& X1 d- let t = f.texture;
9 I( k# O. i* v - let g = t.graphics;
) J- }4 E' s b$ o - state.running = true;0 L x( {0 D% _1 [7 o6 u; H
- let fps = 24;
2 L& {) E- A* P' d; ~6 z5 J - da(g);//绘制底图
/ W! F- x1 ^/ @: ] - t.upload();% k, W4 a7 E, B3 I* O1 r2 D
- let k = 0;9 V( o, ]9 L6 `' Z( a
- let ti = Date.now();( o: w: x7 U$ x) f+ Z2 ~7 Q
- let rt = 0;
4 M; e, }; L6 n7 a! j - smooth = (k, v) => {// 平滑变化; ]4 R% e! l' g/ u2 `8 w, y
- if (v > k) return k;) S* _7 E2 X* y' A3 n3 d- x; V
- if (k < 0) return 0;* r/ }, ^. ?; D, b
- return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;
. X5 W+ a3 n3 S6 Y - }
" k5 }0 Q# }6 A8 {6 K9 d' N - run = () => {// 新线程
! \ r# k. f- N, p# n p4 ~ - let id = Thread.currentThread().getId();
6 A6 w7 B3 j' J2 q3 ~6 n - print("Thread start:" + id);
9 e; ^3 u V4 F - while (state.running) {
7 D" a5 W, b# g& w2 S( ] - try {
/ `2 e9 \. m3 ?. ?# e6 j - k += (Date.now() - ti) / 1000 * 0.2;0 h# g6 R' |1 n8 a
- ti = Date.now();1 n; F3 n H1 p& n( |! E
- if (k > 1.5) {
$ f* x. f2 L2 C" `# M - k = 0;! F- J6 }/ m! n+ ~* ?' J; _" M7 Z
- } b, i; I6 H2 w
- setComp(g, 1);$ v5 Q' F. B. p" X+ T# \- }# T5 E
- da(g);
5 R; _2 z4 R/ M, c2 G. o4 J - let kk = smooth(1, k);//平滑切换透明度
z5 D6 A! [0 ~! Y& w7 e - setComp(g, kk);
$ Z1 j7 {3 R) G- ~" k8 j" V - db(g);
# Y1 G# c* F5 [8 A: I - t.upload();
0 _6 f( Q/ Y5 F9 |2 q - ctx.setDebugInfo("rt" ,Date.now() - ti);* t3 n1 s4 W8 z$ l! U
- ctx.setDebugInfo("k", k);
; u5 Z" d% Y4 f* R ~ - ctx.setDebugInfo("sm", kk);$ W: x' b M& D9 L9 q) U p) S
- rt = Date.now() - ti;8 m; F/ e8 N$ K7 M, O" ?! K( M
- Thread.sleep(ck(rt - 1000 / fps));
9 ]6 S! p, A( |, y* M9 e - ctx.setDebugInfo("error", 0)
* m6 ~0 y7 E7 q( ]- |) D - } catch (e) {
% S0 p; z2 v% b+ F/ P% D2 l2 b - ctx.setDebugInfo("error", e);
) f2 Z+ Z- D `; ? - }& M2 ]; Q0 x: c2 K' K. k
- }
; U) q' P* l2 M9 L! v8 {3 U - print("Thread end:" + id);/ x+ W& i* F8 L2 A! b* X4 s
- }
2 }' h# _6 R8 t, i+ I - let th = new Thread(run, "qiehuan");
- j: K9 w) q/ p V; \3 G: r8 j - th.start();
, D, O D' [4 r, r; K+ O - }
5 G8 ~ C. f/ l5 X5 p% l0 @6 [6 x# |9 F
: u" \# _' a- D0 o) R- function render(ctx, state, entity) { l3 g5 I4 y1 [. R* j
- state.f.tick();
8 U/ _ e. O0 z9 v5 ?/ b. B. q/ w3 F - }/ p# _* r! I; ~! F% j
' y3 U: }4 D, B/ k$ d) I- function dispose(ctx, state, entity) {( K/ ^6 A* D" U0 J
- print("Dispose");
) R9 b, T# q# F* D6 A6 H - state.running = false;
' H% N$ l5 J8 G0 _2 p* g - state.f.close();
2 s! I3 q8 f5 \ - }6 y6 L9 [7 Z* `4 G; \' X5 r7 n1 r
- ) S4 L0 w1 V- i- k* B" J" ~ ]
- function setComp(g, value) {% G. M. u3 ?8 i$ E
- g.setComposite(AlphaComposite.SrcOver.derive(value));2 u0 S$ H. t' j. z- d% n+ Z
- }
复制代码
1 a a/ T8 i) v0 {$ j' y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。
0 Z* q; V6 w1 _- G J. H$ R: Z: t& q% V
3 k" r4 B: i7 K9 n8 t顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)
4 P, j# I7 j) } D |
|