|
|
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
×
9 H1 R/ F3 |4 r5 ^0 ]6 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。8 {- D1 H Z5 J! r$ ]; n
- importPackage (java.lang);
8 \5 r; o5 J! r$ ?+ }8 v6 o0 n - importPackage (java.awt);9 b2 H2 J& O. y' C4 h1 W G! h# r0 }
$ ?4 Q# B+ U4 y' p8 X" r- include(Resources.id("mtrsteamloco:library/code/face.js"));5 i; s% j6 L7 K: }# A+ u: p/ C& {( E
9 |2 N! {& c, L' h7 k! L8 ?- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);9 N9 x/ z" w9 w
- % r: r! C, d! F" N; m
- function getW(str, font) {
6 `& J. [, Z) q2 }. p L- R; @3 }2 Z - let frc = Resources.getFontRenderContext();8 E) W0 h# ^+ a
- bounds = font.getStringBounds(str, frc);
' }3 J8 Z$ U6 J: R0 `6 Z) ] - return Math.ceil(bounds.getWidth());4 j! m# }( G$ r& z
- }
9 E) v; g: ?: N8 f/ x4 G
, [' m8 Z& f5 L1 S9 H: O- da = (g) => {//底图绘制
4 ~6 i4 t4 E) L8 f9 S - g.setColor(Color.BLACK); E8 f) b7 X: \" S' z% C. V
- g.fillRect(0, 0, 400, 400);# i5 J1 R/ U* d, e& `5 w7 E2 |
- }
1 q& Q1 S7 t! D1 J& u
2 z, q# V5 T; @$ B& M9 }( Y1 x. @- db = (g) => {//上层绘制
: r4 n+ a3 T5 {$ o$ c! J* x1 k( d - g.setColor(Color.WHITE);
1 s) f$ h0 i, `" [ b - g.fillRect(0, 0, 400, 400);
+ n1 M9 g4 [% h) o* z" ?9 u - g.setColor(Color.RED);5 u3 ^$ A% j% P: T2 r$ P' T ]" @
- g.setFont(font0);
( j) x' ?+ X! \4 o - let str = "晴纱是男娘";
9 D/ R! w h3 H0 l- L- F - let ww = 400;) l z ~+ W6 k$ a; F
- let w = getW(str, font0);
3 O3 z7 ^, S( {/ q+ [ - g.drawString(str, ww / 2 - w / 2, 200);
6 J: f# _" K( E K# I, Y - }1 v8 C% }$ _: B" i% L' Z
2 u: C2 z+ y! z4 A- const mat = new Matrices();3 U! P6 U, A2 I$ i2 G5 E' N
- mat.translate(0, 0.5, 0);$ c6 ~& T7 j! Q3 J+ Q+ o
! I5 m; k& j, F P# p& B- function create(ctx, state, entity) {! p7 c6 G$ Y) y8 |; w9 i
- let info = {
9 a9 l! A, M% E; X3 f' X - ctx: ctx,+ G/ C- d) E+ z6 [: P$ F" m/ r
- isTrain: false,
& v. e& U5 S h# h - matrices: [mat],
u! B( O: I- @" M( y+ g& ^ - texture: [400, 400],! [$ x, V+ M/ ^% o4 y9 K8 b
- model: {
9 _6 Q1 u; ^: S$ g+ w7 N; R9 m* A - renderType: "light",
3 t4 P6 p% k0 C5 s - size: [1, 1],( S/ r9 I+ x5 F/ R9 ^7 V) s) f# o
- uvSize: [1, 1]3 ?+ P1 e+ }: i- U
- }6 z5 `4 ]/ [1 g( T5 j4 t
- }2 d, Y& r& }. P) b
- let f = new Face(info);( C% P4 u" o, T: a
- state.f = f;
5 D. l8 p6 Q3 |# C: {
, `) n2 w6 x( W$ C- let t = f.texture;
5 X& j& z4 c5 K5 v1 G - let g = t.graphics;
* L, Q A* W! T: K7 m5 n/ [2 C0 ^ - state.running = true;
) T+ F& u* g g' |( \ - let fps = 24;
* a* |6 J0 O2 D# ]' P+ d& Z" T0 n - da(g);//绘制底图9 A4 P( W2 b0 `) G
- t.upload();
2 _8 X0 d( k3 @( j6 ] - let k = 0;
5 \1 A" [2 T! z# ^. Y1 E - let ti = Date.now();
; M- m1 m8 p" r0 v4 U7 q - let rt = 0;0 t' R; z( M: O4 t
- smooth = (k, v) => {// 平滑变化& @9 N5 l; f) L
- if (v > k) return k;- m! W/ G2 p, n0 `, a1 y
- if (k < 0) return 0;: }2 P, t) m! `4 ^3 X6 ?1 Q
- return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;! Z R" x( Y* z- }- @
- }8 N8 X9 L4 Y3 x4 Q v" s f
- run = () => {// 新线程! i% U% l. V' u! `& D
- let id = Thread.currentThread().getId();
, Y" I. K! |# c - print("Thread start:" + id);/ ^) @9 G/ V' p7 q
- while (state.running) {
8 F( K) \8 H$ H - try {
( i a2 c2 e: B* F& C - k += (Date.now() - ti) / 1000 * 0.2;
8 a* p3 T3 Q5 d+ ~! f# j5 z - ti = Date.now();
! }, j) c. C; v" z: y( ` - if (k > 1.5) {
( k0 \+ z' c8 e5 {# Z$ z - k = 0;
2 W0 b# x4 o$ p ^. i - }
) T. v( ?+ q- ]/ u" H" x - setComp(g, 1);# O- O. Q7 f* C
- da(g);) T4 ^2 Q7 e/ T& l3 t- t" _+ @
- let kk = smooth(1, k);//平滑切换透明度
6 z; d' W" l7 y4 q' h$ c - setComp(g, kk);
4 y* c3 _. ?4 a2 J+ I3 g2 d: j/ u - db(g);; \1 j; ]' c' d/ q- L
- t.upload();4 H0 ]1 K1 M$ p8 r8 i
- ctx.setDebugInfo("rt" ,Date.now() - ti);
- `7 V n5 b6 o: l; j' O7 L+ h& Z* q - ctx.setDebugInfo("k", k);
3 ?) g5 [$ v' E0 l - ctx.setDebugInfo("sm", kk);
! ^) [2 }; S' _; i; Z- X - rt = Date.now() - ti;, t" B% I0 V, ~$ s: E' n9 o
- Thread.sleep(ck(rt - 1000 / fps));
) l( H1 p1 n, W8 L' W1 l7 n- z - ctx.setDebugInfo("error", 0): L8 K3 {1 t. Y& P' [6 d- ~4 L2 ^
- } catch (e) {
( O9 v! `/ c s% c; g' ^ - ctx.setDebugInfo("error", e);
% W( k- \6 K9 @& l) b - }
+ p$ \3 L6 q9 Q: B - }
: `3 k8 d9 m! Y1 s! n% q - print("Thread end:" + id);
+ p5 y& d* D) k: S- j - }5 C2 y' m$ y7 r0 q/ ]. F: p
- let th = new Thread(run, "qiehuan");
+ {. R9 @2 g" N# I8 F0 l: V* { - th.start();2 s+ \9 K! t5 f/ X# A6 d
- }: l3 |. J2 z% I5 e l
- " ?0 }7 S5 X7 o; R5 V+ Y1 Q
- function render(ctx, state, entity) {
1 _. X% U2 k2 Q# m# R$ H q! K' o) f - state.f.tick();" o( ?: k( L) D2 P$ M7 x; [$ e5 Y
- }
, j8 u. q; _. m d' o - : k! s/ h% B. Z# {/ T
- function dispose(ctx, state, entity) {
5 }, ^, n% u e y* J! Y3 z- T - print("Dispose");, X4 }6 @5 r: @: Y# y
- state.running = false;
: N) F; w8 e9 C& K - state.f.close();1 e/ h$ ]3 T" \! P/ u# Q* V
- }: U& {, _# J& Q# t" S
7 h" {% |) Z! }1 x4 U5 w% w5 o) s) U- function setComp(g, value) {
8 Y1 f X' O& h" a& R$ Q - g.setComposite(AlphaComposite.SrcOver.derive(value));
9 G, q5 x& b$ P* F6 m - }
复制代码 4 L* c- y( Z' j' c
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。; |9 G! e5 w4 b# e. m2 Q5 c' }/ r
1 [3 R9 g3 T0 K! l0 W x. R
+ Q8 D4 `# C/ k
顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)
' z$ P9 S$ q: z- Y |
|