|
|
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
×
6 T" F% [! U/ f$ Y( S. c$ N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 b. ?1 `0 J+ G8 q y! g" b
- importPackage (java.lang);
. T# Q2 x8 q6 |3 i4 { - importPackage (java.awt);) I9 i6 J7 q m3 O
2 J1 H ]5 v5 z, h+ c+ z6 H+ d" a# W- include(Resources.id("mtrsteamloco:library/code/face.js"));9 E7 R; j0 g. b% E. ~
) F5 {# `( e7 B- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);: z# ?0 n9 U9 `7 _
' m1 ?0 l! j9 l- a( |- function getW(str, font) {
0 J. h) K2 i7 B& i - let frc = Resources.getFontRenderContext();
# a4 ?2 S7 ?/ T: L$ E5 { - bounds = font.getStringBounds(str, frc);
p% N$ f' t! \0 c/ |6 J. ], g - return Math.ceil(bounds.getWidth());' D; h, `5 K/ D# B
- }' U1 w0 l7 A7 o3 p
& `3 p9 d& A L/ H! v$ v- da = (g) => {//底图绘制* x2 {: H) ^$ N1 p% o
- g.setColor(Color.BLACK);1 }& _3 s; B& X$ q
- g.fillRect(0, 0, 400, 400);
, ^6 F# Y& |+ _ e! d - }/ W7 s' e$ q$ c( j. U7 w7 E/ V
$ }0 i. U: t U* m; e/ s2 [- db = (g) => {//上层绘制
7 a, j7 L5 f! l+ v0 ^9 a - g.setColor(Color.WHITE);$ A$ n2 ]: p4 e7 [% e: |: X/ F+ o
- g.fillRect(0, 0, 400, 400);/ S, @0 s; u" _# Z3 _% U
- g.setColor(Color.RED);
M- b) \) i8 g* g- k - g.setFont(font0);
9 b3 q- }4 e* D$ O5 h2 S - let str = "晴纱是男娘";$ \2 [: `. |8 j8 |# N# O
- let ww = 400;# P% y. f# K. Y
- let w = getW(str, font0);- |1 _, S# |' \8 s
- g.drawString(str, ww / 2 - w / 2, 200);
2 E2 B, z. H: x4 A - }0 V2 m$ l8 g, k1 c
, `$ n2 y2 d. j7 Y- const mat = new Matrices();
9 C6 e. \5 ^' P - mat.translate(0, 0.5, 0);
- G1 L6 }3 i' r
4 o( ]' p. V8 H9 J- function create(ctx, state, entity) {2 ?! s" [8 J& n1 Z' _/ I
- let info = {: W- Y" v7 f$ L+ ]+ w: k5 }
- ctx: ctx," T' k; K) X7 {/ _
- isTrain: false,) s8 N. t M, ^1 @* V
- matrices: [mat],
& e. t; c7 [9 n: q: [. e - texture: [400, 400],& ]& w0 D. W$ A3 L- M5 V
- model: {4 h$ `+ b0 d6 o+ A! L# c D
- renderType: "light",
; J& i# a- B- z - size: [1, 1],/ U0 g# C3 ], j/ f/ t) z
- uvSize: [1, 1]7 E( H1 ^; @" F' K, \; T
- }
P: h1 w; E4 R - }
4 r+ d1 r9 K1 A" {3 r1 w' ^+ C - let f = new Face(info);6 H. G- S) K4 |0 G/ K# H4 ^
- state.f = f;* }. }. G2 u2 o
2 U* d" y8 g+ t0 i8 ?- let t = f.texture;7 y2 f4 P- u7 I0 k) F
- let g = t.graphics;
5 i2 k- q: E3 h+ K7 B% m7 l - state.running = true;
5 j4 [$ S! X. H7 h# E- x+ g - let fps = 24;
8 Q! ~" ~9 w& P$ l - da(g);//绘制底图
' Z9 J" h. I, s8 q6 q% }6 W - t.upload();. Q2 D4 V6 T8 u7 w7 f' o& O
- let k = 0;2 g' H5 o" t9 X3 {; ?/ j6 q' }* @7 f
- let ti = Date.now();3 l) M9 m2 r5 p, T% d
- let rt = 0;+ O' D' l+ U D
- smooth = (k, v) => {// 平滑变化
" { q9 u' u1 U - if (v > k) return k;2 N5 m( x7 R- S% G% R
- if (k < 0) return 0;
5 X. R; @. U' K5 {$ [& S- f; \ - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;: f! w6 R4 I3 ]( c0 k* S
- }8 n+ b* C' D% H% R
- run = () => {// 新线程: t; U. B6 z9 G, v% I7 y
- let id = Thread.currentThread().getId();
$ X0 F, Y& J8 C. s - print("Thread start:" + id);0 Q2 x% F$ @" F- W/ H
- while (state.running) {" C( @2 \6 f D! {$ l+ v- s
- try {
% y' A, M; |+ y - k += (Date.now() - ti) / 1000 * 0.2;. ~% [. Z+ N W) P) F K* u/ @
- ti = Date.now();
& O9 ?3 T8 X# Y& \* {5 P8 n/ p3 D - if (k > 1.5) {
0 L3 A! j0 l4 C - k = 0;. X9 q* F0 Y7 G6 f7 i# _# c
- }+ a3 ?1 h1 J3 X3 Y* m
- setComp(g, 1);8 f' J0 K+ [, w- F2 _" Q9 A
- da(g);2 {# h( y ]6 ^9 n6 E
- let kk = smooth(1, k);//平滑切换透明度5 P. f+ p Q! i* E
- setComp(g, kk);
0 e9 \8 C# }& \5 `. K! k - db(g);% V9 ~3 I# U7 f m3 H/ q4 A
- t.upload();! x1 ^$ g5 O1 t E4 p
- ctx.setDebugInfo("rt" ,Date.now() - ti);$ g: p& w4 N: G5 {
- ctx.setDebugInfo("k", k);
& Q, ~7 a/ z2 o# s; v3 `$ K - ctx.setDebugInfo("sm", kk);$ E8 ~. d4 z$ ]+ F- }: i# L& l4 f
- rt = Date.now() - ti;
$ N+ t! j4 d$ u4 k7 I - Thread.sleep(ck(rt - 1000 / fps));
/ W6 K; n& D% W) A - ctx.setDebugInfo("error", 0)
; `) e9 M$ F( ~ - } catch (e) {2 F2 M) h9 G( A) }, g- W
- ctx.setDebugInfo("error", e);
1 j5 P6 O! n u7 v/ A - }% e" W* p2 h7 ~8 W
- }
. \/ T9 _# b) o+ @# [ W - print("Thread end:" + id);3 }; z8 G% e. h: V1 N# a! B
- }
9 H6 Z" ?" m% n, f8 l: V - let th = new Thread(run, "qiehuan");- x" H+ i) n0 z/ P# t
- th.start();
3 }" v& @' [$ {; d* u - }
1 V) s% f; C3 B- C/ m9 ?- q P, _5 P - 8 Q( @3 {! ?/ [, F9 w! a; }5 }
- function render(ctx, state, entity) {
1 S# y! n4 z: W, j j - state.f.tick();
1 [+ Y. c& ~/ R. ?5 v4 T- t2 U - }
( Y, M+ n0 D6 z% D, A - 1 k8 U \4 A* b: e$ A2 r# {
- function dispose(ctx, state, entity) {2 }2 {' m$ M( ~1 ~* }9 ~5 U
- print("Dispose");; O+ T! y3 g, |2 w# x" V4 m
- state.running = false;
5 Y. v+ P7 }3 a0 V' c7 V - state.f.close();% l4 G! g8 r! L) j5 M' q1 z
- }
" x" K% Z9 ?) I& B: b" w4 H - ; l) ^/ @+ m7 I8 `( @. x$ Q
- function setComp(g, value) {
2 S2 o) m4 G* V" T8 ? - g.setComposite(AlphaComposite.SrcOver.derive(value));$ x" r) J. A2 @3 ^+ O
- }
复制代码
! u$ b8 Q, R/ |/ @9 Z5 ?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。( {" j9 C6 F% d+ w& F8 L6 }
7 V9 g- T7 c" x% M1 d2 L# }
% V! X6 M8 ^; x/ d0 c# D- n- I顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)
$ a2 a2 t& A2 ~4 d# v |
|