Bring the flappy-bird example up to date
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@ -12,6 +12,6 @@
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</div>
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</div>
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<script src="index.js"></script>
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<script>Syndicate.bootModule(Main.__SYNDICATE__bootProc);</script>
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<script>Main.main();</script>
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</body>
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</html>
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@ -1,9 +1,9 @@
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/// SPDX-License-Identifier: GPL-3.0-or-later
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/// SPDX-FileCopyrightText: Copyright © 2016-2021 Tony Garnock-Jones <tonyg@leastfixedpoint.com>
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import { $QuitDataspace, Double, Facet, Inbound, Outbound, floatValue } from '@syndicate-lang/core';
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activate import { WindowEvent, template, Anchor } from '@syndicate-lang/html';
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activate import { PeriodicTick } from '@syndicate-lang/timer';
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import { Record, Dataspace, Double, floatValue, Ref, stringify } from '@syndicate-lang/core';
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import { boot as bootHtml, WindowEvent, template, Anchor } from '@syndicate-lang/html';
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import { boot as bootTimer, PeriodicTick } from '@syndicate-lang/timer';
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assertion type Position(x, y);
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assertion type GameOver();
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@ -20,127 +20,168 @@ const PILLAR_GAP = 158;
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const FIELD_HEIGHT = 561;
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const PILLAR_HEAD_HEIGHT = 40;
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boot {
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spawn named 'game-factory' {
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on start spawnGame(thisFacet);
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during GameOver() => {
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on stop spawnGame(thisFacet);
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on message WindowEvent('+keypress', $_e) => send message Reset();
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on message WindowEvent('+click', $_e) => send message Reset();
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export function main() {
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Dataspace.boot(mainDs => {
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bootHtml(mainDs);
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bootTimer(mainDs);
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spawn named 'game-factory' {
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spawnGame(mainDs);
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at mainDs {
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during GameOver() => {
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on stop spawnGame(mainDs);
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on message WindowEvent('+keypress', $_e) => send message Reset();
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on message WindowEvent('+click', $_e) => send message Reset();
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}
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}
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}
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}
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});
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}
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function spawnGame<T>(thisFacet: Facet<T>) {
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spawn dataspace named 'GameInstance' {
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spawn named 'game-instance-control' {
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during GameOver() => assert Outbound(GameOver());
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on message Inbound(Reset()) => send message $QuitDataspace;
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function spawnGame(mainDs: Ref) {
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spawn named 'GameInstance' {
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const gameDs = create new Dataspace();
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at gameDs {
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during GameOver() => at mainDs {
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assert GameOver();
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}
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}
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at mainDs {
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stop on message Reset();
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}
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spawn named 'score' {
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spawn linked named 'score' {
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let ui = new Anchor();
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field score: number = 0;
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assert Score(this.score);
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on start react {
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assert Outbound(ui.html('#board-area',
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template`<h1 class="score">${this.score}</h1>`));
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stop on asserted GameOver() => react {
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assert Outbound(ui.html('#board-area',
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template`<h1 class="score">${this.score}<br/>GAME OVER</h1>`));
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}
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at gameDs {
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assert Score(score.value);
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on message IncreaseScore() => score.value++;
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}
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on message IncreaseScore() => this.score++;
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react {
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at mainDs {
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assert ui.html('#board-area', template`<h1 class="score">${score.value}</h1>`);
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}
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at gameDs {
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stop on asserted GameOver() => react {
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at mainDs {
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assert ui.html(
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'#board-area',
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template`<h1 class="score">${score.value}<br/>GAME OVER</h1>`);
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}
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}
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}
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}
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}
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spawn named 'flappy' {
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spawn linked named 'flappy' {
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let ui = new Anchor();
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field xpos: number = 0;
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field ypos: number = 312;
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field yvel: number = 0;
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assert Position(Double(this.xpos), Double(this.ypos));
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at gameDs {
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assert Position(Double(xpos.value), Double(ypos.value));
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assert Outbound(
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ui.html('#board-area',
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template`<div class="flappy"
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style="${`transform: rotate(${2 * this.yvel}deg);
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top: ${this.ypos}px`}"></div>`));
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on (this.ypos > BOARD_HEIGHT - FLAPPY_HEIGHT) {
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this.ypos = BOARD_HEIGHT - FLAPPY_HEIGHT;
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react {
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assert GameOver();
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on (ypos.value > BOARD_HEIGHT - FLAPPY_HEIGHT) {
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ypos.value = BOARD_HEIGHT - FLAPPY_HEIGHT;
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react {
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assert GameOver();
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}
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}
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}
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on start react {
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stop on asserted GameOver();
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at mainDs {
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assert ui.html(
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'#board-area',
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template`<div class="flappy"
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style="${`transform: rotate(${2 * yvel.value}deg);
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top: ${ypos.value}px`}"></div>`);
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}
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on message Inbound(WindowEvent('+keypress', $_e)) => this.yvel = -10;
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on message Inbound(WindowEvent('+click', $_e)) => this.yvel = -10;
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react {
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at gameDs {
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stop on asserted GameOver();
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}
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const ms_per_tick = 1000.0 / 60;
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on message Inbound(PeriodicTick(Double(ms_per_tick))) => {
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this.xpos += 0.15 * ms_per_tick;
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this.ypos = (this.ypos + this.yvel);
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this.yvel += ms_per_tick * 0.05;
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at mainDs {
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on message WindowEvent('+keypress', $_e) => yvel.value = -10;
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on message WindowEvent('+click', $_e) => yvel.value = -10;
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const ms_per_tick = 1000.0 / 60;
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const ms_per_tick_d = Double(ms_per_tick);
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on message PeriodicTick(ms_per_tick_d) => {
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xpos.value += 0.15 * ms_per_tick;
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ypos.value = (ypos.value + yvel.value);
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yvel.value += ms_per_tick * 0.05;
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}
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}
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}
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}
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spawn named 'border-scroll' {
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spawn linked named 'border-scroll' {
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let ui = new Anchor();
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field pos: number = 0;
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on asserted Position($xpos, _) => this.pos = floatValue(xpos) % 23;
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assert Outbound(ui.html(
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'#board-area',
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template`<div class="scrolling-border" style="${`background-position-x: ${-this.pos}px`}"></div>`,
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0));
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at gameDs {
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on asserted Position($xpos, _) => pos.value = floatValue(xpos) % 23;
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}
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at mainDs {
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assert ui.html(
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'#board-area',
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template`<div class="scrolling-border" style="${`background-position-x: ${-pos.value}px`}"></div>`,
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0);
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}
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}
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spawn named 'pipe-factory' {
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spawn linked named 'pipe-factory' {
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field nextPipe: number = 0;
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on asserted Score(this.nextPipe) => spawnPipe(thisFacet, this.nextPipe++);
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at gameDs {
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on asserted Score(nextPipe.value) => spawnPipe(nextPipe.value++);
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}
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}
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function spawnPipe<T>(thisFacet: Facet<T>, i: number) {
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spawn named ['pipe', i] {
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let ui = new Anchor();
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function spawnPipe(i: number) {
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const xlocation = (i + 1) * 324;
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const xlocation = (i + 1) * 324;
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spawn linked named ['pipe', i] {
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let ui = new Anchor();
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field xpos: number = xlocation;
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const upperHeight =
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Math.random() * (FIELD_HEIGHT - PILLAR_GAP - PILLAR_HEAD_HEIGHT * 6)
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+ PILLAR_HEAD_HEIGHT * 3;
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const lowerHeight = FIELD_HEIGHT - upperHeight - PILLAR_GAP;
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stop on (this.xpos < -(PILLAR_WIDTH + FLAPPY_XPOS));
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stop on (xpos.value < -(PILLAR_WIDTH + FLAPPY_XPOS));
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on start react { stop on (this.xpos <= 0) send message IncreaseScore(); };
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at gameDs {
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react {
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stop on (xpos.value <= 0) send message IncreaseScore();
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}
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field xpos: number = xlocation;
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on asserted Position($xpos, _) => this.xpos = xlocation - floatValue(xpos);
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on asserted Position($flappyXpos, _) =>
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xpos.value = xlocation - floatValue(flappyXpos);
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on asserted Position($xpos, $ypos) => {
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if (touchingPillar(floatValue(xpos), floatValue(ypos))) {
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react {
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assert GameOver();
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on asserted Position($xpos, $ypos) => {
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if (touchingPillar(floatValue(xpos), floatValue(ypos))) {
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react {
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assert GameOver();
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}
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}
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}
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}
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assert Outbound(ui.html(
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'#board-area',
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template`<div class="pillars">
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<div class="pillar pillar-upper"
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style="${`left: ${this.xpos + FLAPPY_XPOS}px; height: ${upperHeight}px;`}"></div>
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<div class="pillar pillar-lower"
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style="${`left: ${this.xpos + FLAPPY_XPOS}px; height: ${lowerHeight}px;`}"></div>
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</div>`));
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at mainDs {
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assert ui.html(
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'#board-area',
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template`<div class="pillars">
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<div class="pillar pillar-upper"
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style="${`left: ${xpos.value + FLAPPY_XPOS}px; height: ${upperHeight}px;`}"></div>
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<div class="pillar pillar-lower"
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style="${`left: ${xpos.value + FLAPPY_XPOS}px; height: ${lowerHeight}px;`}"></div>
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</div>`);
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}
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function touchingPillar(xpos: number, ypos: number): boolean {
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const inHorizontalRange =
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