|
|
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
×
+ t* G4 b9 O3 w f/ W# F: \$ ~9 x+ o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。9 Y1 `$ n2 w3 M) ~% Z7 g. b
- importPackage (java.lang);8 a9 L5 Y+ ~1 q! \2 I
- importPackage (java.awt);
1 I, N9 p3 p! g6 [" M) ^ - & h3 z8 H& ^' p+ y
- include(Resources.id("mtrsteamloco:library/code/face.js"));5 I/ |) }4 g. o5 X6 y: o
- * L2 ~/ _/ j% |4 i# L2 b
- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);5 W1 d3 T7 a3 J9 V# S
- & X+ n" K$ G- I Z' E& ~' _5 x9 T8 j
- function getW(str, font) {1 l* n) i1 N$ h+ P9 J
- let frc = Resources.getFontRenderContext();
) M# p; P4 o& @8 ?" [! r - bounds = font.getStringBounds(str, frc);" X6 c, f% ?/ I) y& G
- return Math.ceil(bounds.getWidth());3 L+ I3 d+ m6 ], J6 D# E8 L) D
- }. r) F* M; q! A6 ~/ Z
- ; p; V' n7 y5 ~, p9 j% q, @
- da = (g) => {//底图绘制
9 L* U) r' J( M9 g9 p/ M - g.setColor(Color.BLACK);
1 p z2 [5 R/ T - g.fillRect(0, 0, 400, 400);+ c, `: N" P5 \7 k' H% K
- }* s3 d& I* l( t6 W" G' L8 w
- + y( W! h+ ~: T7 m {8 D0 `
- db = (g) => {//上层绘制; T& y5 `$ u6 D2 C8 h
- g.setColor(Color.WHITE);: S" m. P: s( X
- g.fillRect(0, 0, 400, 400);. @2 f) V; y, A0 P
- g.setColor(Color.RED);
4 ^% s: W/ Q. C, L! r- Z - g.setFont(font0);; o" ]2 P2 N0 h, H% U |0 w" I
- let str = "晴纱是男娘";9 c" V) g$ c1 s1 O. m/ U6 f
- let ww = 400;
* a/ d0 N/ Y! t; @1 ` - let w = getW(str, font0);. Y% V4 F6 Q: X/ i4 D# h
- g.drawString(str, ww / 2 - w / 2, 200);. i& `' A+ F X# S
- }) H/ {7 V, c# I3 j+ \0 d+ ?
1 u. N2 P5 q' {$ E# G0 G7 } v- const mat = new Matrices();& ?/ I6 S: u# j% b. W m1 Z7 h, | y
- mat.translate(0, 0.5, 0);
0 e2 G8 m6 ^. `4 S
" D, {. U+ F1 ~4 K- function create(ctx, state, entity) {
" z8 g! K; J3 r4 s9 E8 ? U - let info = {
8 ]8 s1 R- l$ C' e9 m - ctx: ctx,0 z% b$ A6 T ]/ B9 n4 ?: t
- isTrain: false,4 w% Z# D N- e7 f
- matrices: [mat],8 e- A2 ]+ W) ~* o; _& D
- texture: [400, 400],
0 y7 k& O d2 y5 y - model: {9 m/ N1 A' U6 c2 N
- renderType: "light",
7 K7 @- ]" _2 W3 k - size: [1, 1],
, N9 _( o8 k3 P( r, B# n; ^, A - uvSize: [1, 1]
7 y3 d# S9 o5 \3 b - }" {5 ~; k+ ~$ a3 F
- }
# Y# j8 X' t4 H; }" W - let f = new Face(info);9 x( \" r, B# l. n9 _ R4 W1 I1 [
- state.f = f;
: \% P' Y! i0 { - " |8 {% h; v) s; t
- let t = f.texture;
' ~# ]$ _' B* C$ R0 z - let g = t.graphics;
9 U! S. m5 L- ^4 U+ {: }- Y - state.running = true;
% z. ]1 ?3 j% ~3 c- I$ p - let fps = 24;0 b) ^. {2 w' @
- da(g);//绘制底图# i1 c7 m' i( F' b
- t.upload();* G+ K6 i; k# b) j
- let k = 0;. O8 F7 x1 Y2 F0 Q& [* I- S$ }
- let ti = Date.now();
2 V4 s* O# i. A# I. k4 ~ - let rt = 0;0 u- M! s9 W! c1 j7 P2 M) f
- smooth = (k, v) => {// 平滑变化
U7 C# S+ t* E5 a( `& S - if (v > k) return k;
' u T* R9 e M W% Q, n4 u - if (k < 0) return 0;
6 O6 _" }" @. r/ y7 X8 x7 V8 | - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;) q, _4 C6 \, i. r' R' o% s, ^' n
- }
6 _( w' O O. \" Z- u0 y - run = () => {// 新线程
6 F" @% A2 ?" f, n i+ ]/ f - let id = Thread.currentThread().getId();
+ _$ p7 `* [4 S; s6 [* [/ J F5 K# V - print("Thread start:" + id);
1 s D2 S. D# K x; x$ U6 Q - while (state.running) {3 B5 ~" A$ L. [+ X- e2 G
- try {' t2 J! X9 w+ y
- k += (Date.now() - ti) / 1000 * 0.2;
8 P1 Y9 u" L V# T1 r7 u& S - ti = Date.now();7 I8 x0 D% e6 L2 g8 n9 P; W2 P
- if (k > 1.5) {
. Y& ?2 K) [0 R6 v' P6 m - k = 0;
- d0 \( _- O: D# M - }
& j4 q8 n( y/ O' a) ^) \3 E) i - setComp(g, 1);* H: s% |+ v+ Y
- da(g);
( c; J6 |+ `& a \7 P* d0 N. U& A - let kk = smooth(1, k);//平滑切换透明度, o$ J S9 |2 L% E# `8 f/ h4 T& @5 Q
- setComp(g, kk);
' @3 w `# A0 U. N" R2 r7 J2 m - db(g);& g. ?+ |0 t8 x
- t.upload();# H2 S' B+ ?0 ?1 u0 V0 Y7 ?$ U5 x* O
- ctx.setDebugInfo("rt" ,Date.now() - ti);
7 X& m0 c6 s9 g) v- k - ctx.setDebugInfo("k", k);: g( X( W: I4 M
- ctx.setDebugInfo("sm", kk);
! A0 @! Y; u7 ~: F$ t - rt = Date.now() - ti;# V: T' E9 a( t5 ^ I. M
- Thread.sleep(ck(rt - 1000 / fps));9 \2 Q J( {; [& g/ e8 ]8 j
- ctx.setDebugInfo("error", 0)
# E8 ?' K! G* L1 H( ^ - } catch (e) {
/ N( ?2 \! R% o - ctx.setDebugInfo("error", e);
, D# G$ Q$ Z( }. V, Q - }7 G/ ]$ D5 C" ~" _( W2 D' X0 D
- }- ?$ k* q' i }
- print("Thread end:" + id);
6 r* S4 e0 t& U( w, x - }. c* F+ _) H, G) b* |3 }4 B
- let th = new Thread(run, "qiehuan");
. }! F1 b3 v" V8 v8 t1 J" r0 h: h - th.start();( S2 J, c, ^1 |; E7 m% M
- }
" s/ c; M6 U) j: J9 k - * U0 U6 w( P8 b- h( P3 H% q5 U
- function render(ctx, state, entity) {
* N: X" ?+ r% }" x' m5 S8 d$ m - state.f.tick();$ `5 ?, E( e% L! e! X% o
- }4 |, G1 L% N9 @+ {4 b
- 9 \7 c/ d1 M3 F F
- function dispose(ctx, state, entity) {
& [) G( B# a) p% V+ v6 V# r) v; Q% | - print("Dispose");& I9 D$ r f l+ E2 V3 e7 l
- state.running = false;
; l z: V: I4 R* s7 M- K: }4 M" C1 L - state.f.close();
0 O. H& i$ O1 C; a" r - }
& H6 v4 U- _* v& Q& f9 i
) P# T& n6 y" t) S- function setComp(g, value) { O0 ^1 F" d( t2 E
- g.setComposite(AlphaComposite.SrcOver.derive(value));% q/ t1 y5 K/ P+ y9 t" l. w6 C
- }
复制代码
: M: @1 d% e/ H, _* L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。% S/ j; e' J% G5 k' P5 y
, p+ X6 Z* C$ J# G# o
* k& S. K! }, ~1 @顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)
. I: U4 w+ n) J |
|