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ecs: can use {{cmd args...}} format
This commit is contained in:
Steven Hugg
parent
4e5beb6c74
commit
7759cc52f1
@ -38,6 +38,13 @@ join thru a reference? load both x and y
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code fragments can be parameterized like macros
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if two fragments are identical, do a JSR
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(do we have to look for labels?)
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should events have parameters? e.g. addscore X Y Z
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how are Z80 arrays working?
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https://forums.nesdev.org/viewtopic.php?f=20&t=14691
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https://www.cpcwiki.eu/forum/programming/trying-not-to-use-ix/msg133416/#msg133416
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how to select two between two entities with once? like scoreboard
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maybe stack-based interpreter?
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*/
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@ -383,12 +390,16 @@ function getPackedFieldSize(f: DataType, constValue?: DataValue): number {
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class ActionEval {
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em;
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dialect;
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atypes;
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entities;
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constructor(
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readonly scope: EntityScope,
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readonly sys: System,
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readonly action: Action) {
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this.em = scope.em;
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this.dialect = scope.em.dialect;
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this.atypes = this.em.archetypesMatching(action.query);
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this.entities = this.scope.entitiesMatching(this.atypes);
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}
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codeToString(): string {
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const tag_re = /\{\{(.+?)\}\}/g;
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@ -397,78 +408,79 @@ class ActionEval {
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let action = this.action;
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let sys = this.sys;
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let code = action.text;
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let label = `${sys.name}__${action.event}`; // TODO: better label that won't conflict (seq?)
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let atypes = this.em.archetypesMatching(action.query);
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let entities = this.scope.entitiesMatching(atypes);
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// TODO: detect cycles
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// TODO: "source"?
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// TODO: what if only 1 item?
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let props: { [name: string]: string } = {};
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if (action.select == 'foreach') {
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code = this.wrapCodeInLoop(code, action, entities);
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code = this.wrapCodeInLoop(code, action, this.entities);
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}
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if (action.select == 'join' && action.join) {
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let jtypes = this.em.archetypesMatching(action.join);
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let jentities = this.scope.entitiesMatching(jtypes);
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if (jentities.length == 0)
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throw new ECSError(`join query for ${label} doesn't match any entities`, action.join); // TODO
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let joinfield = this.getJoinField(action, atypes, jtypes);
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let joinfield = this.getJoinField(action, this.atypes, jtypes);
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// TODO: what if only 1 item?
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// TODO: should be able to access fields via Y reg
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code = this.wrapCodeInLoop(code, action, entities, joinfield);
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atypes = jtypes;
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entities = jentities;
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code = this.wrapCodeInLoop(code, action, this.entities, joinfield);
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this.atypes = jtypes;
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this.entities = jentities;
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props['%joinfield'] = this.dialect.fieldsymbol(joinfield.c, joinfield.f, 0);
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}
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props['%efullcount'] = entities.length.toString();
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props['%efullcount'] = this.entities.length.toString();
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if (action.limit) {
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entities = entities.slice(0, action.limit);
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this.entities = this.entities.slice(0, action.limit);
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}
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if (entities.length == 0)
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if (this.entities.length == 0)
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throw new ECSError(`query for ${label} doesn't match any entities`, action.query); // TODO
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// define properties
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props['%elo'] = entities[0].id.toString();
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props['%ehi'] = entities[entities.length - 1].id.toString();
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props['%ecount'] = entities.length.toString();
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props['%elo'] = this.entities[0].id.toString();
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props['%ehi'] = this.entities[this.entities.length - 1].id.toString();
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props['%ecount'] = this.entities.length.toString();
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// replace @labels
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code = code.replace(label_re, (s: string, a: string) => `${label}__${a}`);
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// replace {{...}} tags
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code = code.replace(tag_re, (entire, group: string) => {
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let toks = group.split(/\s+/);
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if (toks.length == 0) throw new ECSError(`empty command`, action);
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let cmd = group.charAt(0);
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let rest = group.substring(1);
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switch (cmd) {
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case '!': // emit event
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return this.scope.generateCodeForEvent(rest);
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case '.': // auto label
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case '@': // auto label
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return `${label}_${rest}`;
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case '$': // temp byte (TODO: check to make sure not overflowing)
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let tempinc = parseInt(rest);
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if (isNaN(tempinc)) throw new ECSError(`bad temporary offset`, action);
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if (!sys.tempbytes) throw new ECSError(`this system has no locals`, action);
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if (tempinc < 0 || tempinc >= sys.tempbytes) throw new ECSError(`this system only has ${sys.tempbytes} locals`, action);
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return `TEMP+${this.scope.tempOffset}+${tempinc}`;
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case '=':
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// TODO?
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case '<': // low byte
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return this.generateCodeForField(sys, action, atypes, entities, rest, 0);
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case '>': // high byte
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return this.generateCodeForField(sys, action, atypes, entities, rest, 8);
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case '(': // higher byte (TODO)
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return this.generateCodeForField(sys, action, atypes, entities, rest, 16);
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case ')': // higher byte (TODO)
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return this.generateCodeForField(sys, action, atypes, entities, rest, 24);
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case '^': // resource reference
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return this.scope.includeResource(rest);
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case '!': return this.__emit([rest]);
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case '$': return this.__local([rest]);
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case '^': return this.__use([rest]);
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case '<': return this.__byte([rest, '0']);
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case '>': return this.__byte([rest, '8']);
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default:
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let value = props[group];
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let value = props[toks[0]];
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if (value) return value;
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else throw new ECSError(`unrecognized command {{${group}}} in ${entire}`);
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let fn = (this as any)['__' + toks[0]];
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if (fn) return fn.bind(this)(toks.slice(1));
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throw new ECSError(`unrecognized command {{${toks[0]}}}`, action);
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}
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});
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return code;
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}
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__byte(args: string[]) {
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let fieldName = args[0];
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let bitofs = parseInt(args[1] || '0');
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return this.generateCodeForField(this.sys, this.action, this.atypes, this.entities, fieldName, bitofs);
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}
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__use(args: string[]) {
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return this.scope.includeResource(args[0]);
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}
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__emit(args: string[]) {
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return this.scope.generateCodeForEvent(args[0]);
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}
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__local(args: string[]) {
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let tempinc = parseInt(args[0]);
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if (isNaN(tempinc)) throw new ECSError(`bad temporary offset`, this.action);
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if (!this.sys.tempbytes) throw new ECSError(`this system has no locals`, this.action);
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if (tempinc < 0 || tempinc >= this.sys.tempbytes) throw new ECSError(`this system only has ${this.sys.tempbytes} locals`, this.action);
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return `TEMP+${this.scope.tempOffset}+${tempinc}`;
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}
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wrapCodeInLoop(code: string, action: Action, ents: Entity[], joinfield?: ComponentFieldPair): string {
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// TODO: check ents
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// TODO: check segment bounds
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@ -523,7 +535,7 @@ class ActionEval {
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return this.dialect.absolute(ident);
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} else if (action.select == 'once') {
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if (entities.length != 1)
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throw new ECSError(`can't choose multiple entities for ${fieldName} with select=once`);
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throw new ECSError(`can't choose multiple entities for ${fieldName} with select=once`, action);
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return this.dialect.absolute(ident);
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} else {
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// TODO: right direction?
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@ -5,7 +5,7 @@ import { Dialect_CA65, EntityManager, SourceFileExport } from "../common/ecs/ecs
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const TEMPLATE1 = `
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@NextFrame:
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FRAME_START
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{{!preframe}}
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{{emit preframe}}
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KERNEL_START
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{{!kernel}}
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KERNEL_END
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@ -24,7 +24,7 @@ const TEMPLATE4_S1 = `
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lda #192 ; TODO: numlines
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sec
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sbc ypos_ypos_b0+ent
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sta {{$5}}+ofs
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sta {{local 5}}+ofs
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ldy hasbitmap_bitmap_b0+ent
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lda bitmap_bitmapdata_b0,y
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@ -59,9 +59,9 @@ const TEMPLATE4_S2 = `
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// https://atariage.com/forums/topic/129683-advice-on-a-masking-kernel/
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// https://atariage.com/forums/topic/128147-having-trouble-with-2-free-floating-player-graphics/?tab=comments#comment-1547059
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const TEMPLATE4_K = `
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lda {{<bgcolor}}
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lda {{byte bgcolor}}
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sta COLUBK
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ldy {{<lines}}
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ldy {{byte lines}}
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@LVScan:
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lda {{$4}} ; height
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dcp {{$5}}
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@ -91,10 +91,10 @@ const TEMPLATE4_K = `
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`;
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const SET_XPOS = `
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lda {{<xpos}}
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ldy {{<plyrindex}}
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lda {{byte xpos}}
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ldy {{byte plyrindex}}
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sta HMCLR
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jsr {{^SetHorizPos}}
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jsr {{use SetHorizPos}}
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`
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const SETHORIZPOS = `
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