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ecs: with, select queries

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This commit is contained in:
Steven Hugg 2022-02-03 07:44:47 -06:00
parent dcb11a7080
commit c299bcddae
5 changed files with 103 additions and 76 deletions
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4
src/codemirror/ecs.js
View File

@ -17,10 +17,10 @@
var keywords1, keywords2;
var directives_list = [
'end', 'component', 'system', 'entity', 'scope', 'using',
'end', 'component', 'system', 'entity', 'scope', 'using', 'demo',
'const', 'init', 'locals',
'on', 'do', 'emit', 'limit',
'once', 'foreach', 'source', 'join'
'once', 'foreach', 'with', 'join'
];
var keywords_list = [
'processor',

20
src/common/ecs/compiler.ts
View File

@ -1,7 +1,7 @@
import { mergeLocs, Tokenizer, TokenType } from "../tokenizer";
import { SourceLocated } from "../workertypes";
import { Action, ArrayType, ComponentType, DataField, DataType, DataValue, Dialect_CA65, Entity, EntityArchetype, EntityManager, EntityScope, IntType, Query, RefType, SelectType, SourceFileExport, System } from "./ecs";
import { Action, ArrayType, ComponentType, DataField, DataType, DataValue, Entity, EntityArchetype, EntityManager, EntityScope, IntType, Query, RefType, SelectType, SourceFileExport, System } from "./ecs";
export enum ECSTokenType {
Ellipsis = 'ellipsis',
@ -196,7 +196,6 @@ export class ECSCompiler extends Tokenizer {
parseResource(): System {
let name = this.expectIdent().str;
let query = this.parseQuery();
let tempbytes;
if (this.peekToken().str == 'locals') {
this.consumeToken();
@ -204,7 +203,7 @@ export class ECSCompiler extends Tokenizer {
}
let text = this.parseCode();
let select : SelectType = 'once';
let action : Action = { text, event: name, query, select };
let action : Action = { text, event: name, select };
return { name, tempbytes, actions: [action] };
}
@ -212,10 +211,17 @@ export class ECSCompiler extends Tokenizer {
// TODO: unused events?
let event = this.expectIdent().str;
this.expectToken('do');
let select = this.expectTokens(['once', 'foreach', 'source', 'join']).str as SelectType; // TODO: type check?
let query = this.parseQuery();
let select = this.expectTokens(
['once', 'foreach', 'join', 'with', 'select']).str as SelectType; // TODO: type check?
let query = undefined;
let join = undefined;
if (select == 'join') join = this.parseQuery();
if (select != 'once') {
query = this.parseQuery();
}
if (select == 'join') {
this.expectToken('with');
join = this.parseQuery();
}
let emits;
let limit;
if (this.peekToken().str == 'limit') {
@ -231,7 +237,7 @@ export class ECSCompiler extends Tokenizer {
}
let text = this.parseCode();
let action = { text, event, query, join, select, limit };
return action;
return action as Action;
}
parseQuery() {

144
src/common/ecs/ecs.ts
View File

@ -111,17 +111,31 @@ export interface System extends SourceLocated {
tempbytes?: number;
}
export interface Action extends SourceLocated {
text: string;
export type SelectType = 'once' | 'foreach' | 'join' | 'with' | 'select';
export interface ActionBase extends SourceLocated {
select: SelectType;
event: string;
select: SelectType
query: Query;
join?: Query;
limit?: number;
text: string;
emits?: string[];
}
export type SelectType = 'once' | 'foreach' | 'source' | 'join';
export interface ActionOnce extends ActionBase {
select: 'once'
}
export interface ActionWithQuery extends ActionBase {
select: 'foreach' | 'join' | 'with' | 'select'
query: Query
limit?: number
}
export interface ActionWithJoin extends ActionWithQuery {
select: 'join'
join?: Query
}
export type Action = ActionWithQuery | ActionWithJoin | ActionOnce;
export type DataValue = number | boolean | Uint8Array | Uint16Array;
@ -491,8 +505,10 @@ class ActionEval {
readonly action: Action) {
this.em = scope.em;
this.dialect = scope.em.dialect;
this.qr = new QueryResult(scope, action.query);
this.oldState = scope.state;
let q = (action as ActionWithQuery).query;
if (q) this.qr = new QueryResult(scope, q);
else this.qr = new QueryResult(scope, undefined, [], []);
}
begin() {
let state = this.scope.state = Object.assign({}, this.scope.state);
@ -506,19 +522,21 @@ class ActionEval {
case 'join':
if (state.x || state.y) throw new ECSError('no free index registers for join', this.action);
state.y = this.qr;
if (this.action.join) {
this.jr = new QueryResult(this.scope, this.action.join);
state.x = this.jr;
}
this.jr = new QueryResult(this.scope, (this.action as ActionWithJoin).join);
state.x = this.jr;
break;
case 'source':
if (!state.x) throw new ECSError('expected index register', this.action);
let int = state.x.intersection(this.qr);
// TODO: what if we filter 0 entities?
if (int.entities.length == 0) throw new ECSError('queries do not intersect', this.action);
let indofs = int.entities[0].id - state.x.entities[0].id;
state.xofs += indofs;
state.x = int;
case 'with':
if (state.x) {
let int = state.x.intersection(this.qr);
// TODO: what if we filter 0 entities?
if (int.entities.length == 0) throw new ECSError('queries do not intersect', this.action);
let indofs = int.entities[0].id - state.x.entities[0].id;
state.xofs += indofs;
state.x = int;
} else {
if (this.qr.entities.length != 1)
throw new ECSError(`query outside of loop must match exactly one entity`, this.action);
}
break;
}
}
@ -532,43 +550,46 @@ class ActionEval {
let action = this.action;
let sys = this.sys;
let code = action.text;
let label = `${sys.name}__${action.event}`; // TODO: better label that won't conflict (seq?)
// TODO: detect cycles
// TODO: "source"?
// TODO: what if only 1 item?
let label = `${sys.name}__${action.event}__${this.em.seq++}`; // TODO: better label that won't conflict (seq?)
let props: { [name: string]: string } = {};
if (action.select == 'foreach') {
code = this.wrapCodeInLoop(code, action, this.qr.entities);
}
if (action.select == 'join' && this.jr) {
let jentities = this.jr.entities;
if (jentities.length == 0)
throw new ECSError(`join query for ${label} doesn't match any entities`, action.join); // TODO
let joinfield = this.getJoinField(action, this.qr.atypes, this.jr.atypes);
if (action.select != 'once') {
// TODO: detect cycles
// TODO: "source"?
// TODO: what if only 1 item?
// TODO: should be able to access fields via Y reg
code = this.wrapCodeInLoop(code, action, this.qr.entities, joinfield);
props['%joinfield'] = this.dialect.fieldsymbol(joinfield.c, joinfield.f, 0); //TODO?
this.qr = this.jr; // TODO?
if (action.select == 'foreach') {
code = this.wrapCodeInLoop(code, action, this.qr.entities);
}
if (action.select == 'join' && this.jr) {
let jentities = this.jr.entities;
if (jentities.length == 0)
throw new ECSError(`join query doesn't match any entities`, action); // TODO
let joinfield = this.getJoinField(action, this.qr.atypes, this.jr.atypes);
// TODO: what if only 1 item?
// TODO: should be able to access fields via Y reg
code = this.wrapCodeInLoop(code, action, this.qr.entities, joinfield);
props['%joinfield'] = this.dialect.fieldsymbol(joinfield.c, joinfield.f, 0); //TODO?
this.qr = this.jr; // TODO?
}
let entities = this.qr.entities;
props['%efullcount'] = entities.length.toString();
if (action.limit) {
entities = entities.slice(0, action.limit);
}
if (entities.length == 0)
throw new ECSError(`query doesn't match any entities`, action.query); // TODO
// filter entities from loop?
if (action.select == 'with' && entities.length > 1) {
// TODO: what if not needed
code = this.wrapCodeInFilter(code);
}
// define properties
props['%elo'] = entities[0].id.toString();
props['%ehi'] = entities[entities.length - 1].id.toString();
props['%ecount'] = entities.length.toString();
props['%xofs'] = this.scope.state.xofs.toString();
props['%yofs'] = this.scope.state.yofs.toString();
this.qr.entities = entities;
}
if (action.select == 'source') {
// TODO: what if not needed
code = this.wrapCodeInFilter(code);
}
let entities = this.qr.entities;
props['%efullcount'] = entities.length.toString();
if (action.limit) {
entities = entities.slice(0, action.limit);
}
if (entities.length == 0)
throw new ECSError(`query for ${label} doesn't match any entities`, action.query); // TODO
// define properties
props['%elo'] = entities[0].id.toString();
props['%ehi'] = entities[entities.length - 1].id.toString();
props['%ecount'] = entities.length.toString();
props['%xofs'] = this.scope.state.xofs.toString();
props['%yofs'] = this.scope.state.yofs.toString();
this.qr.entities = entities;
// replace @labels
code = code.replace(label_re, (s: string, a: string) => `${label}__${a}`);
// replace {{...}} tags
@ -664,16 +685,14 @@ class ActionEval {
// TODO: don't mix const and init data
let range = this.scope.bss.getFieldRange(component, fieldName) || this.scope.rodata.getFieldRange(component, fieldName);
if (!range) throw new ECSError(`couldn't find field for ${component.name}:${fieldName}, maybe no entities?`); // TODO
let eidofs = range.elo - qr.entities[0].id; // TODO
// TODO: dialect
let ident = this.dialect.fieldsymbol(component, field, bitofs);
if (qualified) {
return this.dialect.absolute(ident);
} else if (action.select == 'once') {
if (qr.entities.length != 1)
throw new ECSError(`can't choose multiple entities for ${fieldName} with select=once`, action);
} else if (qr.entities.length == 1) {
return this.dialect.absolute(ident);
} else {
let eidofs = range.elo - qr.entities[0].id; // TODO
// TODO: eidofs?
let ir;
if (this.scope.state.x?.intersection(this.qr)) {
@ -697,8 +716,8 @@ class ActionEval {
getJoinField(action: Action, atypes: ArchetypeMatch[], jtypes: ArchetypeMatch[]): ComponentFieldPair {
let refs = Array.from(this.scope.iterateArchetypeFields(atypes, (c, f) => f.dtype == 'ref'));
// TODO: better error message
if (refs.length == 0) throw new ECSError(`cannot find join fields`, action.query);
if (refs.length > 1) throw new ECSError(`cannot join multiple fields`, action.query);
if (refs.length == 0) throw new ECSError(`cannot find join fields`, action);
if (refs.length > 1) throw new ECSError(`cannot join multiple fields`, action);
// TODO: check to make sure join works
return refs[0]; // TODO
/* TODO
@ -1043,6 +1062,8 @@ export class EntityManager {
symbols: { [name: string]: 'init' | 'const' } = {};
event2systems: { [event: string]: System[] } = {};
name2cfpairs: { [cfname: string]: ComponentFieldPair[] } = {};
mainPath: string = '';
seq = 1;
constructor(public readonly dialect: Dialect_CA65) {
}
@ -1140,8 +1161,7 @@ export class EntityManager {
exportToFile(file: SourceFileExport) {
file.text(this.dialect.HEADER); // TODO
for (let scope of Object.values(this.topScopes)) {
// TODO: demos
if (!scope.isDemo) {
if (!scope.isDemo || scope.filePath == this.mainPath) {
scope.dump(file);
}
}

10
src/test/testecs.ts
View File

@ -210,18 +210,18 @@ function testECS() {
tempbytes: 12,
actions: [
{
text: TEMPLATE4_S1, event: 'preframe', select: 'once', query: {
text: TEMPLATE4_S1, event: 'preframe', select: 'with', query: {
include: [c_kernel]
}
},
{
// TODO: should include kernel for numlines
text: TEMPLATE4_S2, event: 'preframe', select: 'once', query: {
text: TEMPLATE4_S2, event: 'preframe', select: 'with', query: {
include: [c_sprite, c_hasbitmap, c_hascolormap, c_ypos],
},
},
{
text: TEMPLATE4_K, event: 'kernel', select: 'once', query: {
text: TEMPLATE4_K, event: 'kernel', select: 'with', query: {
include: [c_kernel]
}
},
@ -242,14 +242,14 @@ function testECS() {
em.defineSystem({
name: 'frameloop',
actions: [
{ text: TEMPLATE1, event: 'start', select: 'once', query: { include: [c_kernel] },
{ text: TEMPLATE1, event: 'start', select: 'with', query: { include: [c_kernel] },
emits: ['preframe', 'kernel', 'postframe'] }
]
})
em.defineSystem({
name: 'SetHorizPos',
actions: [
{ text: SETHORIZPOS, event: 'SetHorizPos', select: 'once', query: { include: [c_xpos] } },
{ text: SETHORIZPOS, event: 'SetHorizPos', select: 'with', query: { include: [c_xpos] } },
]
});

1
src/worker/tools/ecs.ts
View File

@ -11,6 +11,7 @@ export function assembleECS(step: BuildStep): BuildStepResult {
return getWorkFileAsString(path);
}
gatherFiles(step, { mainFilePath: "main.ecs" });
if (step.mainfile) em.mainPath = step.path;
var destpath = step.prefix + '.ca65';
if (staleFiles(step, [destpath])) {
let code = getWorkFileAsString(step.path);