|
|
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 n2 G2 H" k" w- \# Y% }% e2 `: Q
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。& c Y% D x3 h- O% v7 J0 R
- importPackage (java.lang);$ Z2 i! I* d3 Z( B5 m/ x% I) C2 r
- importPackage (java.awt);1 s8 @# [$ A- i& f( _) E0 Y- [- w
- - ~! f& Q3 _( o1 N6 E! `. r3 {. Q- w
- include(Resources.id("mtrsteamloco:library/code/face.js"));, f0 j2 z& r: |1 J) e
- $ R# c8 ^' P$ P9 O
- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);; a4 X$ w( M; Z! d; L, z! z( ^' V' g
- ) b& K: Y5 i* T$ @4 z9 u' A
- function getW(str, font) {& N4 N, O- z0 g X
- let frc = Resources.getFontRenderContext();. `9 {9 G) M4 P( K- U
- bounds = font.getStringBounds(str, frc);' N$ ~) e, {7 o/ N
- return Math.ceil(bounds.getWidth());
$ e' Z8 D' r6 D: [) N$ i - }% J0 t4 X$ C$ ~4 R% t( O8 ]
6 P* b7 S' H1 S1 {; F9 Q, d- da = (g) => {//底图绘制! H$ U/ w! v$ _! D+ s
- g.setColor(Color.BLACK);
3 F* B8 E: n5 d( Y' U& l - g.fillRect(0, 0, 400, 400);
9 }0 D5 R. ]1 ` - }
: d6 l; ^) u2 `% Z! Y - 1 G+ B2 W0 B$ O6 b3 e1 N% C2 }0 j4 y
- db = (g) => {//上层绘制
( F) e9 O* R0 f0 z4 j - g.setColor(Color.WHITE);
1 S% W2 I5 N* D- [9 }+ M - g.fillRect(0, 0, 400, 400);. S# G, M2 j" L$ s5 f5 s
- g.setColor(Color.RED);
! ^9 w5 o8 ]) t1 R - g.setFont(font0);' l9 z f: Q! o, @7 m
- let str = "晴纱是男娘";4 O- U- E8 ?% ^% }; c% q6 k* ?
- let ww = 400;
4 N+ A% C& \! m ]) c8 s$ J - let w = getW(str, font0);; S- [' H# v" n, o% ]6 o3 W0 o
- g.drawString(str, ww / 2 - w / 2, 200);
, Y+ \8 T- T. D4 k - }
% Y# H2 F. n# A* D( p
2 ~7 P6 ?& \! k( o0 u9 B- const mat = new Matrices();
/ n% ^& N& e0 v, E H' G2 G - mat.translate(0, 0.5, 0);
& F5 e! U2 C* O+ C+ u' S
/ e* l, m1 F* U1 u8 G- function create(ctx, state, entity) {/ i" D& B" S6 ^8 G+ g
- let info = {
$ k5 R: G; X, K+ u- }0 M8 T - ctx: ctx,$ m2 i3 J/ R$ v3 u4 N. @+ i
- isTrain: false,
; t* i/ a, F* e+ s( [1 H0 J( y! s - matrices: [mat],7 ]/ P8 r; x; g f" ^8 C
- texture: [400, 400],
& P0 @8 H. C0 a- z) Z# S- p: I# r0 J - model: {
7 i9 c1 L* r$ [% K/ f7 ~ k - renderType: "light",# i0 v- E7 }) T6 w# o+ C
- size: [1, 1],
( h3 J5 k) e, t% g6 B - uvSize: [1, 1]
8 g3 a- ]2 u2 r5 J, W. g% a, F! Z V - }# x% e! w) E2 |1 p3 i9 Y6 B* a
- }+ R5 f f* z9 z; [2 \+ @1 ^% k
- let f = new Face(info);$ ? m8 O1 p( h9 [9 |6 w9 h, D
- state.f = f;
8 @% t: ~" c& r/ z8 v' e9 b5 B - 7 a2 F& r( \* q% K: F) `
- let t = f.texture;9 f, S4 z" A6 Y/ z1 ~( V
- let g = t.graphics;
' l8 J4 B x) k) X - state.running = true;
; J: A6 ^9 x, n8 E - let fps = 24;0 d: B6 Q, P) `. T: L
- da(g);//绘制底图" ?: c$ v( {1 v2 Z1 a/ G
- t.upload();2 f c$ {# ^$ e" F6 s4 ]5 r1 N
- let k = 0;
$ N, |, U- z8 s - let ti = Date.now();( }! M1 ~" O+ R8 g2 }
- let rt = 0;
& G1 j1 q) O9 O4 U" |. J* ^ - smooth = (k, v) => {// 平滑变化4 W3 m/ {2 U' f8 H/ w4 h% C. U% K
- if (v > k) return k;
y5 ~) j6 D2 c) T - if (k < 0) return 0;
; C, N. q) W1 {5 j - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;- U1 l( @- P9 D7 t: @1 i3 _
- }
' n& s j+ |$ f6 ` X* n - run = () => {// 新线程; U& R/ t, V2 z! c6 l
- let id = Thread.currentThread().getId();
. @0 p# f6 d" P5 h e; Y - print("Thread start:" + id);
; D% s0 [7 b- c3 z: F& q- r3 p - while (state.running) {
7 U/ Z, s4 ?5 q4 C9 X5 M - try {3 Y/ e3 R3 e! ^# v3 O
- k += (Date.now() - ti) / 1000 * 0.2;( P% s2 d! f/ I+ D( C" T4 J7 n
- ti = Date.now();
7 C. j! p, g# P' a" G) j2 u6 | - if (k > 1.5) {
: X3 R6 H; T1 C! p0 p5 \2 n G - k = 0;
/ L; l$ a- J0 G; S! w - }- Q6 K4 o& m+ r1 c% `4 ?' t
- setComp(g, 1);3 ~, Q+ [1 |$ G# ~% _
- da(g);
- h! }6 c! h, z. y3 f0 m2 d - let kk = smooth(1, k);//平滑切换透明度# r! z. G/ S8 C* M% S$ n& R# f
- setComp(g, kk);# @/ S) G$ W" y
- db(g);# o' j0 C" E, W7 e, k) T" Z. F; Z
- t.upload();! A5 S( }/ U h# v+ w E8 u) `, Y
- ctx.setDebugInfo("rt" ,Date.now() - ti);1 b% u8 R' A2 M
- ctx.setDebugInfo("k", k);4 L5 Z% d% P! |/ `- d+ E+ y5 a
- ctx.setDebugInfo("sm", kk);
" k% t- N9 U$ H- b! a - rt = Date.now() - ti;% k' j# A! X/ |$ b
- Thread.sleep(ck(rt - 1000 / fps));# H* e; v7 C. b
- ctx.setDebugInfo("error", 0)/ n- \% m- ?- f& N% d3 Y
- } catch (e) {- ?) `0 e6 |- G. `# ]# k6 d1 s
- ctx.setDebugInfo("error", e);6 A% l$ H* Y+ x+ i d( \
- }- n+ r& |- Q, c* i& W% M3 O
- }
; U: ^ f* h1 h5 B - print("Thread end:" + id);
4 u9 K4 m8 Q. x! x. ?% R. o0 m - }( ^4 k" t& r1 L% S2 p
- let th = new Thread(run, "qiehuan");' t1 V4 ~4 S( s: |. \
- th.start();5 p4 q; b! A) R
- }
9 q. o; S5 f8 W! z; o; ]
" J) G9 R1 v7 _0 ]. p- function render(ctx, state, entity) {
/ f- R" }( k6 f7 s3 m* N - state.f.tick();
+ e: D4 v# I! N/ k7 o7 m( r6 i# [3 u - }
; o/ Q1 R) b& @0 m+ l% P9 n - $ P, @# m( e( _* G3 ^( u0 }5 c
- function dispose(ctx, state, entity) {8 A3 w( X- R9 H Z$ W
- print("Dispose");
: H' j, U. ^* ^; n - state.running = false;% [% x* J0 p3 p# f% U, Z
- state.f.close();
; o! \( ~+ ]+ X( R0 N( c: ~ - }
# b" m; l, ^# |9 U2 j) P
9 `. {1 _% ^6 I% S* Y, Y- function setComp(g, value) {7 h- P; O# x7 c3 K1 _& I
- g.setComposite(AlphaComposite.SrcOver.derive(value));, J/ S7 f) x' F4 j
- }
复制代码
2 m* \3 N& W1 ^* L/ U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。
( m) ^2 G. U, S0 N8 T3 s! [# b% k' A& S9 g8 o' w
* t; v% A' a9 t; O# @, [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 g, O- ?# x: w
|
|