|
|
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
×
B' b2 ^, l4 z% Y% Y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。" q6 X6 s% a1 ^, V9 y% z
- importPackage (java.lang);- R/ F9 H0 f7 o0 d$ Z/ f
- importPackage (java.awt);
! V% G4 I& L2 _' d4 v8 K - + u, j/ p9 Q) m4 p0 d7 {
- include(Resources.id("mtrsteamloco:library/code/face.js"));
5 w( R# F' Q; W9 R! B( B: \ - 1 s/ b/ \9 b" H3 H
- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);1 o. O6 x" Y* y
9 r0 R2 L; G* U* x- function getW(str, font) {
2 A7 E) R0 _* D( D - let frc = Resources.getFontRenderContext();# ~" z0 h& `. Z( ~6 g8 T
- bounds = font.getStringBounds(str, frc);
/ }" b+ O+ i, S8 _% X7 U- h( w - return Math.ceil(bounds.getWidth());9 L; y7 c7 L' j+ N0 c
- }
6 z' N) r' l& ?9 d- O( m
3 t3 e1 `+ N0 G. a' z6 m' E# m- da = (g) => {//底图绘制* `0 _8 W# D* p* _$ ~
- g.setColor(Color.BLACK);" p; V5 b, Y- i; ]2 W c' z
- g.fillRect(0, 0, 400, 400);
4 N7 ?7 N" U: u: [ u4 ~ - }$ S# _4 E2 }1 o3 f E) @
' t: G9 ^( I/ _+ G5 H- db = (g) => {//上层绘制
& T. u/ h3 H2 w - g.setColor(Color.WHITE);
0 e/ _4 K n! Y# c$ G - g.fillRect(0, 0, 400, 400);8 L! ^5 q1 c* \8 o
- g.setColor(Color.RED);! c/ u3 l3 p7 e1 _4 J
- g.setFont(font0);
( q$ l( }# J3 P7 R" ]0 d ?4 ]5 c - let str = "晴纱是男娘";
4 d$ Y% t" ~- e3 ]" ~ - let ww = 400;" L! V8 h1 ] Y' F2 ?* k0 P; M
- let w = getW(str, font0);
) D1 ~2 p3 Y% V( v) G; z% s+ W - g.drawString(str, ww / 2 - w / 2, 200);. d( _" r$ P9 A$ g$ T) O; M# Z+ w
- }7 ]9 t0 P) Z* ?( T0 ~6 \
- ! q% Y9 \( L8 f
- const mat = new Matrices();
- J6 y1 i' @& S/ R$ o3 X( z - mat.translate(0, 0.5, 0);- {& j# w, G: H0 W( L. u( T, }
' I4 K$ m9 _! z m9 b, \- function create(ctx, state, entity) {
" X4 R% a1 y+ o% h% O - let info = {8 Q; A6 l! Z P* P6 p# @* P+ z
- ctx: ctx,
9 [+ t4 c/ o* ?7 @ - isTrain: false,) I% [- C% `, d3 V, w6 {5 T( `
- matrices: [mat],
9 t/ v7 r7 m# g9 u! M" G - texture: [400, 400],5 C1 g2 ~# p! ?1 F
- model: {
, Z$ c% F' ^# N4 w" V0 A - renderType: "light",+ a. ]$ F: O" l1 \& z9 f
- size: [1, 1],
4 B; i9 k. W' R7 b5 i - uvSize: [1, 1]# R8 |- f1 }3 z) X% [: n
- }
( x8 Z! i1 ~1 a' V( b6 \1 E& ]! r7 y - }1 o, V9 @1 I1 F `
- let f = new Face(info);& J- c1 H/ b- v S, W
- state.f = f;* D, e N- E/ V' m7 P. U) V3 \
- ! m# I- x3 ^0 [" B: @
- let t = f.texture;
1 Q" o2 a$ r. C# D# \; y* S* ?9 Q - let g = t.graphics;
& R+ L6 z# b0 g+ w4 M - state.running = true;! Q! c, t! Y* p. d
- let fps = 24;
2 ~5 F8 M# q+ h, O - da(g);//绘制底图/ g+ b, K* I* _' g. k( i6 ]
- t.upload();
7 b, N2 i9 |: w4 A7 Q V - let k = 0;
- O1 z9 f3 W M1 F2 ^+ p( Y! c - let ti = Date.now();0 |, R) l* d( k2 k/ Q' r' d, }/ j4 _' D
- let rt = 0;% L" q' t) c0 d4 X7 V/ O$ m
- smooth = (k, v) => {// 平滑变化
) G9 N4 w, q J) I% I$ c3 z4 z - if (v > k) return k;
0 S! H; y' y! H8 m: k9 w - if (k < 0) return 0;
, H- {" [1 w/ s5 e+ E3 q$ @ - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;
; k+ X7 ?& n- A8 g8 I3 [2 _ - }
) P+ r1 s# {6 G! U - run = () => {// 新线程. l6 q) A1 e8 [
- let id = Thread.currentThread().getId();3 X; ^$ t1 v& q/ q! w
- print("Thread start:" + id);
6 w0 }3 f- _* ]+ b! i3 ~ B: s4 T - while (state.running) {
7 g- {; x1 H. B; _8 z! W2 s - try {5 i( u# l% F( w. `0 Z" y& A* D
- k += (Date.now() - ti) / 1000 * 0.2;
) R! P4 W( T9 ^: q4 N" O! ?0 z - ti = Date.now();
k; ^( ]* _8 s. P/ y6 x% m - if (k > 1.5) {
) R1 F3 h" P* b: P - k = 0; T6 \ g) ~/ L& ]
- } F9 c8 x& I/ V
- setComp(g, 1);
3 O. y) a" b1 s. S3 @; p8 F# M6 r - da(g);) |, M8 y, w1 N/ {# b# q
- let kk = smooth(1, k);//平滑切换透明度) v4 C; L; o" S- N+ e0 d/ Y P
- setComp(g, kk);
" }) g4 c, o7 V5 ? }" v4 C - db(g);- U% a& O) ~( A' j
- t.upload();/ o. |, X, E8 `; a: y0 d
- ctx.setDebugInfo("rt" ,Date.now() - ti);
$ d% A& U) Y% d: Y - ctx.setDebugInfo("k", k);0 @& m7 T! e) N; B
- ctx.setDebugInfo("sm", kk);
, R& C& V* F# k - rt = Date.now() - ti;' V* Y8 o# a- r
- Thread.sleep(ck(rt - 1000 / fps));& [/ H+ x& S2 Q( C
- ctx.setDebugInfo("error", 0)- m3 U: V8 J' d4 i, m8 R* a! H
- } catch (e) {
- K) ~9 ~" a ~1 R7 ?" W - ctx.setDebugInfo("error", e);
% ]. b9 L4 _! q. o3 s1 Q& X' _ - }
+ |, h, W' m' x2 I* }5 e4 F - }; S: T1 q5 D2 b* T
- print("Thread end:" + id);
: \8 g8 ?7 Q) m4 B* ]( l" r/ T - }! X/ }; x' o1 H8 X
- let th = new Thread(run, "qiehuan");
4 E* Y; x" g% w! ~/ R1 R/ |0 K - th.start();$ j% q8 G+ U [' a
- }2 I/ O7 r9 `0 k- i# @% \% o
- 9 t3 V- u& x s, B
- function render(ctx, state, entity) {$ L) d5 q. `+ y2 V$ t( _
- state.f.tick();* ]1 v& f/ c {! g8 h6 H3 |
- }
# y9 [& k! U9 f
5 ]" t( y7 w$ z V w. A' W- function dispose(ctx, state, entity) {4 x+ J$ R. c! J+ w I4 e
- print("Dispose");
1 L* v4 X$ @# n- T: ?/ I - state.running = false;
( R8 X: |% f6 c) o% B - state.f.close();
$ N. {( X2 f7 N2 n1 I - }
8 r+ G3 B: ^. A4 \, K5 _# w* ^, F `
% W; M: A2 b: F4 s* {0 u- function setComp(g, value) {1 O% }; W- S9 Z; m4 G3 @& S e- P
- g.setComposite(AlphaComposite.SrcOver.derive(value));
% y# q' Q& U+ C7 S) c - }
复制代码
1 e& I9 f1 A0 ^- ?8 Y. X. D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 W6 n2 C& |& g7 J! [
" e' f6 {" |* C6 K1 Y( Y
& `/ y2 Q9 S# n5 ^顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)
1 c3 w; k4 k/ ?, l; J& ? |
|