|
|
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
×
5 u2 r. m% {% ?5 g( k3 p& H- [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。; Q% l6 f& z p
- importPackage (java.lang);3 F" d; F! s/ f. ^ P4 J2 ~
- importPackage (java.awt);. F; q5 z8 I$ Y6 L) Q6 A6 y
- " f' Y* X- _- z( d: S
- include(Resources.id("mtrsteamloco:library/code/face.js"));/ u9 v S G) v& i; W3 C
6 I9 r2 g- Z E% `5 |- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);
- Q* G, Z" }9 P- x& N1 V
9 ]) n; v9 [0 p$ i/ S1 ^- function getW(str, font) {. j) K0 z1 `2 W# c; y
- let frc = Resources.getFontRenderContext();
8 r( o+ w# {0 W - bounds = font.getStringBounds(str, frc);
. a6 F, ^+ v4 ~) e) A - return Math.ceil(bounds.getWidth());
6 c: H, k1 |+ i% ~# s$ j4 W - }
, h/ C( Y& x( q6 l; c$ R% R2 x - 9 z+ b' k( l# w
- da = (g) => {//底图绘制$ ~+ V2 w+ b* l* r* V: {
- g.setColor(Color.BLACK);
2 I7 o9 O6 ?4 V+ _ - g.fillRect(0, 0, 400, 400);
* A$ y }! ?. ?" T - }( S. m2 z5 x3 C6 h2 ~, v
; H! h* q1 `: m8 ?0 m1 E- ]3 G- db = (g) => {//上层绘制: N4 N7 l% S+ \, h3 Q; S
- g.setColor(Color.WHITE);. d1 |# F# g( C) O
- g.fillRect(0, 0, 400, 400); q1 z& b* e/ h) e+ O
- g.setColor(Color.RED);! `7 q; O, p4 x3 d; _- ^
- g.setFont(font0);
# ?% @( D2 F& i8 S' X) U6 m - let str = "晴纱是男娘";
- w4 r6 t' c6 Z - let ww = 400;
; z. _% |4 u, g/ q( P& K - let w = getW(str, font0);1 ~2 j# r) I; W: |2 W7 A0 b: t" {/ Q
- g.drawString(str, ww / 2 - w / 2, 200);' }3 } y( z; k Q
- }) R! a$ w7 v7 H( K X4 i
- ) m( M& Q8 {4 [; y4 u
- const mat = new Matrices();
: i& T0 ^8 t4 E3 R% |. _* u - mat.translate(0, 0.5, 0);
' K' L! y( b7 J4 W0 S
; x8 y5 F# |4 l- function create(ctx, state, entity) {
/ w5 D& f- T# B$ R( f! m4 j+ c - let info = {1 V+ m+ w+ |3 ?' z. i* O
- ctx: ctx,! ^% j j7 ^* S& M. O' o
- isTrain: false,2 U( J- X" S3 d
- matrices: [mat],
) H# T' B' S6 K$ d8 g5 n) \ - texture: [400, 400],) f' v: r8 O% Y H& f) x8 X
- model: {
3 F6 [4 g. z1 a* I - renderType: "light",
# E2 i/ H, J7 B8 j - size: [1, 1],( q. e" V2 S+ c! g% n/ }/ i" r+ e
- uvSize: [1, 1]5 b, }# Q2 z; k7 z9 T
- }
$ `/ v5 {$ k$ x% k1 ]7 H, { - }/ w4 ^0 D9 |1 t3 e; d! x
- let f = new Face(info);3 w; R9 U1 ~$ D& ^2 m
- state.f = f;
% i1 m! Z3 O* P# V% Z5 H
" @5 V9 u3 Z2 p4 v. l1 L- let t = f.texture;
. U: d8 p, q" @7 _3 [% j; j - let g = t.graphics;. O! p) k P' ?
- state.running = true;& f- k. J+ A% e# l7 o/ n! u
- let fps = 24;9 y- D1 X& u8 m
- da(g);//绘制底图! W9 L" v: i, D$ k
- t.upload();+ ], E7 u$ T& ? u
- let k = 0;
! t4 `8 ~& ?3 C3 l, b# s7 g1 q8 y9 _1 g - let ti = Date.now();& Q' t, S! F' y9 m0 I9 _( p& E" k
- let rt = 0;1 V) l8 Y$ R& `5 ?# e: g+ @
- smooth = (k, v) => {// 平滑变化
# y7 b/ t: q: |1 O/ d; p - if (v > k) return k;
/ K9 k1 f3 Q: @0 T5 F& d. S - if (k < 0) return 0;! W" v7 v4 c& x0 x1 d- u {
- return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;+ S; y% I/ s% N
- }2 S- }7 P9 [. S5 O) j2 c7 Z
- run = () => {// 新线程
/ q/ F# t: N' k! V% \2 f! V - let id = Thread.currentThread().getId();
. s0 m' }5 D: M$ C6 X. i7 [ - print("Thread start:" + id);+ L U5 O9 V2 f% X R( y5 u7 n$ }
- while (state.running) {4 v3 J3 W9 c6 u, V
- try {
& j2 e: b5 v# H - k += (Date.now() - ti) / 1000 * 0.2;
3 @: y: g( H7 `) O9 [* k$ |# ?7 B9 ^ - ti = Date.now();0 i9 h6 ?, j5 B! }) n# i
- if (k > 1.5) {( o) O# T5 M3 Q& k( g$ B
- k = 0;' E8 A r" H1 H3 G
- }
) S- s M: l/ w - setComp(g, 1);
& q( v5 _3 d+ F& ]. s6 c- r, Y - da(g);
& y/ t D7 [) s% s8 v - let kk = smooth(1, k);//平滑切换透明度! x7 A) u2 r# F6 H) G
- setComp(g, kk);8 ~) C& j2 G, v: L
- db(g);; d2 n n3 D% q" k
- t.upload();
2 t2 k0 p$ c2 s - ctx.setDebugInfo("rt" ,Date.now() - ti);) o2 V4 j, q- h
- ctx.setDebugInfo("k", k);
9 I% |, Z% M8 B - ctx.setDebugInfo("sm", kk);4 I' s4 q Z* e& a4 S! R
- rt = Date.now() - ti;
' B L0 O* h2 r5 I3 a( I, S - Thread.sleep(ck(rt - 1000 / fps));8 Z. i- O8 C0 \; z- w$ U8 d/ v4 F# O
- ctx.setDebugInfo("error", 0), e, }% g" z, Z3 _+ B0 L
- } catch (e) {
7 I- s' s9 ?# q0 J/ X* W* @+ D - ctx.setDebugInfo("error", e);/ D& M7 }; V& z: y' r, c/ r. a% P0 [; O
- }
& m- t; b' u8 @ - }# ]$ g' ?# R9 R& @; p: B" ?. O
- print("Thread end:" + id);' N! ~( {( P8 E" R- x1 i; O9 R3 i1 K
- }2 t0 U) Z/ I+ O
- let th = new Thread(run, "qiehuan");
7 M/ s# X8 e% t2 Y) [& m' ^ - th.start();
6 J7 e- T, y, G9 H1 M, a7 w - }8 m1 l1 A' O3 ?# c( s7 B8 I
+ I }5 q3 {, y5 q1 c- function render(ctx, state, entity) {) t- @! N/ x; K/ H4 q
- state.f.tick();
1 I0 i2 E0 d' z# d: m* U - }
8 ]- [4 D% u6 v, t) X4 k - ) e4 r6 J6 ~/ g9 Y: [
- function dispose(ctx, state, entity) {+ t/ q7 L" @5 Q5 g2 E) P) N. ~2 _
- print("Dispose");
1 l( g" c. D# F' \& j, o' @% d - state.running = false;/ r/ g0 [' r4 @* Y' X `
- state.f.close();
1 g7 ]8 E% @4 W6 M; s2 v - }
V4 k/ d @# Z; \6 F
8 ~4 b/ \/ p! o' Q4 ?- function setComp(g, value) {* A: J5 U" h9 D: A4 Q+ J3 @$ v9 l
- g.setComposite(AlphaComposite.SrcOver.derive(value));
* N: N3 \; @* s9 C% N% F - }
复制代码 1 ~; l, R1 C: I1 Q3 l8 ~4 Y, J
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。4 K9 o/ p5 @/ m$ b1 x6 o
# e+ H: |* v0 S: n7 e$ B0 l2 K
; ~! K8 K0 q% V/ F4 A+ Q5 d4 L1 J6 _
顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下), U) ?( k1 H9 X9 V
|
|