|
|
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
×
0 i6 g% v( H7 ^8 w t/ L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。/ x. G- x+ J7 q2 W$ P3 o; T6 L, t
- importPackage (java.lang);4 N' e9 l& \1 m
- importPackage (java.awt);
4 [. H0 G4 y' ~% @1 b - & [( h" B$ p$ u) M' p3 W
- include(Resources.id("mtrsteamloco:library/code/face.js"));; V, v% D. I3 H/ {* E" Z1 S
+ r; c$ Y" S& r2 J: G" F1 g3 T- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);
. s' r* e# q+ n# ]3 \ - ; Z5 w7 S2 z1 b4 D0 P0 r
- function getW(str, font) {
( |* \. T# `. x6 T: P - let frc = Resources.getFontRenderContext();
) s& I3 F p7 ` - bounds = font.getStringBounds(str, frc);
; {" b: ?* r$ D9 M# o - return Math.ceil(bounds.getWidth());5 E* E; }9 P2 B( M. l) _5 \- R0 U
- }
+ C* X5 h) W, N5 ~7 [- z5 Z5 ^# q - - Y% Y! ?" o: j: X
- da = (g) => {//底图绘制
; |# c8 d& H8 z2 T, Y6 N( ~ S - g.setColor(Color.BLACK);0 C: f7 y8 z5 D& f& ? h
- g.fillRect(0, 0, 400, 400);
( H) P1 j/ |! v9 m# ~" y9 ? - }
8 g( Y6 g" J( Q! H
- [# D6 n* Q4 a- db = (g) => {//上层绘制
, r* Z; a2 f6 G; ]- h* D6 p5 O - g.setColor(Color.WHITE);
; F' m: s' @! O, E0 M$ Y ^ - g.fillRect(0, 0, 400, 400);9 H. T3 g2 S% R
- g.setColor(Color.RED);
6 ^) ?6 ]$ o& Y9 O# g- Y4 d& C - g.setFont(font0);
. O/ ?* Y0 e4 \- J' c8 @0 ] - let str = "晴纱是男娘";0 d. a u% Z0 f1 y2 }) P) G
- let ww = 400;
8 |% {- }0 g; w; F; a" w$ V/ l - let w = getW(str, font0);. N6 q& h5 V, H4 X, j5 v
- g.drawString(str, ww / 2 - w / 2, 200);
5 E8 t7 g3 \ H$ S$ A8 R4 N - }2 S8 ~3 \3 g$ W7 i# h% I; Q
- $ }& [0 d- f4 ~! D+ m7 u
- const mat = new Matrices();, b$ W" F- b j) p( V3 c
- mat.translate(0, 0.5, 0);
: `* l" m2 j8 a! E" s- A - ; C- O$ @& _4 k }* q( v
- function create(ctx, state, entity) {5 p5 t, F6 w2 y6 h# ~; [
- let info = {; I4 U0 j, c2 c7 w: d' u
- ctx: ctx,
4 s s+ l4 n C/ W9 Y$ ?) E. A - isTrain: false,
8 Q3 m0 `) _" U! H6 F - matrices: [mat],
) [/ n% u& m6 Z% d4 U P" d( v - texture: [400, 400],- f/ f2 N- U9 V3 L
- model: {
f$ }9 d& k. r. x3 E7 G - renderType: "light",( r+ j- e8 j' Q
- size: [1, 1],
( J7 g1 q9 _, k - uvSize: [1, 1]
1 B+ p9 O) A5 }4 o/ j6 _& [, q - }+ f& }5 M2 N {1 ?2 ~7 k5 c- X
- }% N! E0 D. @7 U3 h6 `# c& u
- let f = new Face(info);
4 Y* L0 V$ K) u7 C, c/ S' A - state.f = f;
v. j" S* H6 P k
0 S1 [1 f! a- X! e; v- let t = f.texture;
, C4 q4 A* X3 ~" P1 x - let g = t.graphics;
* A) L; M) Q8 E5 ^/ W$ V6 y - state.running = true;+ m# p* @4 a/ f5 M
- let fps = 24;
5 g) k3 f+ O ?4 j+ R/ y - da(g);//绘制底图
- x- _4 d/ F. v - t.upload();
: w. }7 x2 u5 A: L: u; T - let k = 0;- v- G8 D# r: q4 l
- let ti = Date.now();& B$ z! n# i5 G0 A# t
- let rt = 0;) ^( L" G8 R9 W! ~
- smooth = (k, v) => {// 平滑变化
( ~ J7 \0 S' h1 A& i( Q - if (v > k) return k;, j. ~2 e: F6 |+ D
- if (k < 0) return 0;
2 I( d& q$ Z/ l. \1 ? - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;7 c+ G1 q0 k' q6 g: {0 o: Y
- }
6 h! K$ ~4 @1 E7 s - run = () => {// 新线程
S- w/ F' [2 p. Y) W - let id = Thread.currentThread().getId();
) Z) c L$ a6 Q }% _0 F. @: b - print("Thread start:" + id);
, b3 o1 T. I. U6 ]& T5 G - while (state.running) {
4 t, D) |' J" O" o7 G0 Z7 K - try {
: g( V3 A" K E7 W0 c - k += (Date.now() - ti) / 1000 * 0.2;
0 O& o5 @; \5 c% C - ti = Date.now();3 F6 Q+ c; `" t) R2 u; L! U
- if (k > 1.5) {
: ~1 [4 H- d2 f( g4 a - k = 0;; G/ e1 K' p: Z9 }. ~
- }4 q- A2 N# G2 a$ q7 \' p
- setComp(g, 1);4 G5 L! H! @% ~
- da(g);
' D* t* _4 u4 B! T" a0 ^' e a - let kk = smooth(1, k);//平滑切换透明度. N; V/ ~9 ?! o ]8 i
- setComp(g, kk);
; Q3 N! P; ?( R7 z9 ]0 x - db(g);. W/ a3 o: O q) Z" n
- t.upload();
! g- s: _! p; G - ctx.setDebugInfo("rt" ,Date.now() - ti);! p- M+ n# S7 A: W, A
- ctx.setDebugInfo("k", k);
. Y3 A8 ?: b, I' h - ctx.setDebugInfo("sm", kk);
. F( W" I0 O3 Z - rt = Date.now() - ti;$ c7 h! v7 [0 p: j5 T G( T+ K
- Thread.sleep(ck(rt - 1000 / fps));
+ L5 k% p, }2 r5 `- G' A F4 Y0 l - ctx.setDebugInfo("error", 0)
9 B7 f( d" J2 Q. D$ W - } catch (e) {
7 e& t7 o8 |) Q; ^: c/ N6 V - ctx.setDebugInfo("error", e);' f% M9 w0 f- L0 @3 t B/ ?
- }' o; B; q0 _, Y1 w4 \$ V
- }) Y! d/ i2 k3 s# o# g m
- print("Thread end:" + id);
! f0 a& ^5 Y* f4 B# [ - }
+ r/ F% Z" D5 N% u& w - let th = new Thread(run, "qiehuan");
" i! h! I" r) R4 a8 I K8 N. V& D - th.start();
. O4 ^6 X% X( \* W5 B- G( | - }
) D: Z; x* \- s' _0 x
; C z: A4 f$ O0 V! @- function render(ctx, state, entity) {
w$ V3 ~9 q; C% f. n: T. P - state.f.tick();' N# Q% c4 J( w4 G
- }1 ^9 _- g4 w% T! i0 G
- ) f1 ~4 N' j+ F' d) u
- function dispose(ctx, state, entity) {* W& e# B2 C8 g9 J7 d5 R1 G
- print("Dispose");
0 O: h1 Y+ F, |3 w - state.running = false;
% V3 r# i: \+ n& y - state.f.close();) W1 t2 n. P8 ]1 h. I! R
- }
p! v6 ?; I9 t9 c - 1 g" \/ s7 G- p4 D9 ^9 d0 X0 y
- function setComp(g, value) { u( i7 H) y9 M- [' A$ x8 v
- g.setComposite(AlphaComposite.SrcOver.derive(value));0 Y! _2 Q% ~' ?5 t4 [7 H4 u9 E' A4 y
- }
复制代码 * m0 L3 l. k( [' X. s
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 U% J. s# ~: G( {: n+ q1 ?# w8 ?4 ] z, ~
p/ Q6 b4 ^" n- L8 |" f+ Z顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)3 Z" g- M* B% u% o- U
|
|