mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2024-12-25 15:30:03 +00:00
ecs 1st compile
This commit is contained in:
Steven Hugg
parent
3f87b5dbb8
commit
b00d43d1ea
@ -15,6 +15,10 @@
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// to change scope, fire event w/ scope name
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// - how to handle bank-switching?
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function mksymbol(c: ComponentType, fieldName: string) {
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return c.name + '_' + fieldName;
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}
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export interface Entity {
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id: number;
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etype: EntityArchetype;
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@ -46,9 +50,9 @@ export interface Query {
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export interface System {
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name: string;
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actions: CodeFragment[];
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query: Query;
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tempbytes?: number;
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actions: CodeFragment[];
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emits?: string[];
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live?: EntityArchetype[] | null;
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}
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@ -101,6 +105,11 @@ interface ConstByte {
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bitofs: number;
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}
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interface ArchetypeMatch {
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etype: EntityArchetype;
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cmatch: ComponentType[];
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}
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class SourceFileExport {
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lines : string[] = [];
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@ -108,10 +117,13 @@ class SourceFileExport {
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this.lines.push(';' + text);
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}
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segment(seg: string, segtype: 'rodata' | 'bss') {
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if (segtype == 'bss')
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if (segtype == 'bss') {
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this.lines.push(` seg.u ${seg}`);
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else
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this.lines.push(` org $80`); // TODO
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} else {
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this.lines.push(` seg ${seg}`);
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this.lines.push(` org $f000`); // TODO
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}
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}
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label(sym: string) {
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this.lines.push(`${sym}:`);
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@ -123,9 +135,13 @@ class SourceFileExport {
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if (b < 0 || b > 255) throw new Error(`out of range byte ${b}`);
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this.lines.push(` .byte ${b}`)
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} else {
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this.lines.push(` .byte (${b.symbol} >> ${b.bitofs}) & 0xff`)
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this.lines.push(` .byte (${b.symbol} >> ${b.bitofs})`)
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}
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}
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text(s: string) {
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for (let l of s.split('\n'))
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this.lines.push(l);
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}
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toString() {
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return this.lines.join('\n');
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}
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@ -137,8 +153,13 @@ class Segment {
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fieldranges: {[cfname: string]: FieldArray} = {};
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size: number = 0;
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initdata: (number | ConstByte | undefined)[] = [];
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codefrags : string[] = [];
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addCodeFragment(code: string) {
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this.codefrags.push(code);
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}
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allocateBytes(name: string, bytes: number) {
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if (this.symbols[name]) return this.symbols[name]; // TODO: check size
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let ofs = this.size;
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this.symbols[name] = ofs;
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if (!this.ofs2sym.has(ofs))
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@ -155,6 +176,9 @@ class Segment {
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}
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}
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dump(file: SourceFileExport) {
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for (let code of this.codefrags) {
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file.text(code);
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}
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for (let i=0; i<this.size; i++) {
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let syms = this.ofs2sym.get(i);
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if (syms) {
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@ -163,6 +187,10 @@ class Segment {
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file.byte(this.initdata[i]);
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}
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}
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// TODO: move cfname functions in here too
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getFieldRange(component: ComponentType, fieldName: string) {
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return this.fieldranges[mksymbol(component, fieldName)];
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}
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}
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function getFieldBits(f: IntType) {
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@ -184,12 +212,12 @@ function getPackedFieldSize(f: DataType, constValue?: DataValue): number {
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}
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const ASM_ITERATE_EACH = `
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ldx #%{elo}
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.loop:
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%{action}
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ldx #0
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%{.loop}:
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%{code}
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inx
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cpx #%{ehi}+1
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bne .loop
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cpx #%{ecount}
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bne %{.loop}
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`;
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export class EntityScope {
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@ -199,6 +227,9 @@ export class EntityScope {
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rodata = new Segment();
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code = new Segment();
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componentsInScope = new Set();
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tempOffset = 0;
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maxTempBytes = 0;
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subroutines = new Set<string>();
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constructor(
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public readonly em: EntityManager,
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@ -223,23 +254,17 @@ export class EntityScope {
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let e = this.entities[i];
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for (let c of e.etype.components) {
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for (let f of c.fields) {
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yield {i, e, c, f, v:e.consts[c.name + '.' + f.name]};
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yield {i, e, c, f, v:e.consts[mksymbol(c, f.name)]};
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}
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}
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}
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}
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analyzeEntities() {
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this.buildSegments();
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this.allocateSegment(this.bss, false);
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this.allocateSegment(this.rodata, true);
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this.allocateROData(this.rodata);
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}
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buildSegments() {
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let iter = this.iterateFields();
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for (var o=iter.next(); o.value; o=iter.next()) {
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let {i,e,c,f,v} = o.value;
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let segment = v === undefined ? this.bss : this.rodata;
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let cfname = c.name + '.' + f.name;
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let cfname = mksymbol(c, f.name);
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let array = segment.fieldranges[cfname];
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if (!array) {
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array = segment.fieldranges[cfname] = {component:c, field:f, elo:i, ehi:i};
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@ -254,11 +279,11 @@ export class EntityScope {
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fields.sort((a,b) => (a.ehi - a.elo + 1) * getPackedFieldSize(a.field));
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let f;
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while (f = fields.pop()) {
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let name = f.component.name + "_" + f.field.name;
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let name = mksymbol(f.component, f.field.name);
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// TODO: doesn't work for packed arrays too well
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let bits = getPackedFieldSize(f.field);
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// variable size? make it a pointer
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if (bits == 0) bits = 16;
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if (bits == 0) bits = 16; // TODO?
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let rangelen = (f.ehi - f.elo + 1);
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let bytesperelem = Math.ceil(bits/8) * rangelen;
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// TODO: packing bits
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@ -277,13 +302,20 @@ export class EntityScope {
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let iter = this.iterateFields();
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for (var o=iter.next(); o.value; o=iter.next()) {
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let {i,e,c,f,v} = o.value;
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let cfname = c.name + '.' + f.name;
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let cfname = mksymbol(c, f.name);
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let fieldrange = segment.fieldranges[cfname];
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if (v !== undefined) {
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// is it a byte array?
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if (v instanceof Uint8Array) {
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let sym = c.name + '_' + f.name;
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segment.allocateInitData(sym, v);
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let datasym = `${c.name}_${f.name}_e${e.id}`;
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let ptrlosym = `${c.name}_${f.name}_b0`;
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let ptrhisym = `${c.name}_${f.name}_b8`;
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let entcount = fieldrange.ehi - fieldrange.elo + 1;
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segment.allocateInitData(datasym, v);
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let loofs = segment.allocateBytes(ptrlosym, entcount);
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let hiofs = segment.allocateBytes(ptrhisym, entcount);
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segment.initdata[loofs + e.id - fieldrange.elo] = {symbol:datasym, bitofs:0};
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segment.initdata[hiofs + e.id - fieldrange.elo] = {symbol:datasym, bitofs:8};
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} else if (fieldrange.ehi > fieldrange.elo) {
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// more than one element, add an array
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// TODO
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@ -295,71 +327,124 @@ export class EntityScope {
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//console.log(segment.initdata)
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}
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setConstValue(e: Entity, component: ComponentType, fieldName: string, value: DataValue) {
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e.consts[component.name + '.' + fieldName] = value;
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}
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dump(file: SourceFileExport) {
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file.segment(`${this.name}_CODE`, 'rodata');
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this.rodata.dump(file);
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file.segment(`${this.name}_DATA`, 'bss');
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this.bss.dump(file);
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}
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generateCode() {
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let code = this.generateCodeForEvent('init');
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console.log(code);
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// TODO: check to make sure component exists
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e.consts[mksymbol(component, fieldName)] = value;
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}
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generateCodeForEvent(event: string): string {
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// find systems that respond to event
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// and have entities in this scope
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let systems = this.getSystems([event]);
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if (systems.length == 0) {
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console.log(`no system responds to ${event}`); // TODO: warning
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console.log(`; warning: no system responds to ${event}`); // TODO: warning
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}
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let s = '';
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//s += `\n; event ${event}\n`;
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let emitcode : {[event: string] : string} = {};
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for (let sys of systems) {
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if (sys.tempbytes) this.allocateTempBytes(sys.tempbytes);
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if (sys.emits) {
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for (let emit of sys.emits) {
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if (emitcode[emit]) {
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console.log(`already emitted for ${sys.name}:${event}`);
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}
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//console.log('>', emit);
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// TODO: cycles
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emitcode[emit] = this.generateCodeForEvent(emit);
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//console.log('<', emit, emitcode[emit].length);
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}
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}
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if (sys.tempbytes) this.allocateTempBytes(-sys.tempbytes);
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for (let action of sys.actions) {
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let code = action.text;
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if (action.event == event) {
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// TODO: find loops
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if (action.iterate == 'each') {
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let ents = this.entitiesMatching(sys.query);
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console.log(sys.name, action.event, ents);
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//frag = this.iterateCode(frag);
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}
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// TODO: better parser of ${}
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for (let [k,v] of Object.entries(emitcode)) {
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let frag = v;
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code = code.replace(`%{${k}}`, frag);
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}
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// anything not replaced?
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let unused = /\%\{.+?\}/.exec(code);
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if (unused) {
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//throw new Error(`${sys.name}:${action.event} did not replace ${unused[0]}`);
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}
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// TODO: check that this happens once?
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s += `\n; action ${sys.name}:${action.event}\n`;
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let code = this.replaceCode(action.text, sys, action);
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s += `\n; <action ${sys.name}:${event}>\n`;
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s += code;
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s += `\n; </action ${sys.name}:${event}>\n`;
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// TODO: check that this happens once?
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}
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}
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}
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}
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return s;
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}
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entitiesMatching(q: Query) {
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allocateTempBytes(n: number) {
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this.tempOffset += n;
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this.maxTempBytes = Math.max(this.tempOffset, this.maxTempBytes);
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}
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replaceCode(code: string, sys: System, action: CodeFragment): string {
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const re = /\%\{(.+?)\}/g;
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let label = sys.name + '_' + action.event;
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let atypes = this.em.archetypesMatching(sys.query);
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let entities = this.entitiesMatching(atypes);
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// TODO: find loops
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if (action.iterate == 'each') {
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code = this.wrapCodeInLoop(code, sys, action, entities);
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//console.log(sys.name, action.event, ents);
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//frag = this.iterateCode(frag);
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}
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return code.replace(re, (entire, group: string) => {
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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.generateCodeForEvent(rest);
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case '.': // auto label
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return `.${label}_${rest}`;
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case '$': // temp byte
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return `TEMP+${this.tempOffset}+${rest}`;
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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 '^': // reference
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return this.includeSubroutine(rest);
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default:
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//throw new Error(`unrecognized command ${cmd} in ${entire}`);
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console.log(`unrecognized command ${cmd} in ${entire}`);
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return entire;
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}
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});
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}
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includeSubroutine(symbol: string): string {
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this.subroutines.add(symbol);
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return symbol;
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}
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wrapCodeInLoop(code: string, sys: System, action: CodeFragment, ents: Entity[]): string {
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// TODO: check ents
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// TODO: check segment bounds
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let s = ASM_ITERATE_EACH;
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s = s.replace('%{elo}', ents[0].id.toString());
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s = s.replace('%{ehi}', ents[ents.length-1].id.toString());
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s = s.replace('%{ecount}', ents.length.toString());
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s = s.replace('%{code}', code);
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return s;
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}
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generateCodeForField(sys: System, action: CodeFragment,
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atypes: ArchetypeMatch[], entities: Entity[],
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fieldName: string, bitofs: number): string {
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// find archetypes
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let component = this.em.componentWithFieldName(atypes, fieldName);
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if (!component) {
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throw new Error(`cannot find component with field "${fieldName}" in ${sys.name}:${action.event}`);
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}
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// see if all entities have the same constant value
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let constValues = new Set();
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for (let e of entities) {
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let constVal = e.consts[fieldName];
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if (constVal) constValues.add(constVal);
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}
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// TODO: offset > 0?
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//let range = this.bss.getFieldRange(component, fieldName);
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return `${component.name}_${fieldName}_b${bitofs},x`
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}
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entitiesMatching(atypes: ArchetypeMatch[]) {
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let result = [];
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let atypes = this.em.archetypesMatching(q);
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for (let e of this.entities) {
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for (let a of atypes) {
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if (e.etype == a.etype)
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// TODO: what about subclasses?
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if (e.etype == a.etype) {
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result.push(e);
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break;
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}
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}
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}
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return result;
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@ -390,6 +475,31 @@ export class EntityScope {
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hasComponent(ctype: ComponentType) {
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return this.componentsInScope.has(ctype.name);
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}
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analyzeEntities() {
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this.buildSegments();
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this.allocateSegment(this.bss, false);
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this.allocateSegment(this.rodata, true);
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this.allocateROData(this.rodata);
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}
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generateCode() {
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this.tempOffset = this.maxTempBytes = 0;
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let init = this.generateCodeForEvent('init');
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this.code.addCodeFragment(init);
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for (let sub of Array.from(this.subroutines.values())) {
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let code = this.generateCodeForEvent(sub);
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this.code.addCodeFragment(code);
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}
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}
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dump(file: SourceFileExport) {
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file.text(HEADER); // TODO
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file.segment(`${this.name}_DATA`, 'bss');
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if (this.maxTempBytes) this.bss.allocateBytes('TEMP', this.maxTempBytes);
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this.bss.dump(file);
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file.segment(`${this.name}_CODE`, 'rodata');
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this.rodata.dump(file);
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this.code.dump(file);
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file.text(FOOTER); // TODO
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}
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}
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export class EntityManager {
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@ -426,7 +536,7 @@ export class EntityManager {
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return list;
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}
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archetypesMatching(q: Query) {
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let result : {etype: EntityArchetype, cmatch: ComponentType[]}[] = [];
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let result : ArchetypeMatch[] = [];
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this.archtypes.forEach(etype => {
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let cmatch = this.componentsMatching(q, etype);
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if (cmatch.length > 0) {
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@ -435,107 +545,176 @@ export class EntityManager {
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});
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return result;
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}
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emitCode(root: System) {
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componentWithFieldName(atypes: ArchetypeMatch[], fieldName: string) {
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// TODO???
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for (let at of atypes) {
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for (let c of at.cmatch) {
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for (let f of c.fields) {
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if (f.name == fieldName)
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return c;
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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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const HEADER = `
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processor 6502
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include "vcs.h"
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include "macro.h"
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include "xmacro.h"
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`
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const FOOTER = `
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org $fffc
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.word Start ; reset vector
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.word Start ; BRK vector
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`
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const TEMPLATE_INIT = `
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Start:
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CLEAN_START
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%{start}
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%{!start}
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`
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const TEMPLATE1 = `
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.NextFrame:
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lsr SWCHB ; test Game Reset switch
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bcc Start ; reset?
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VERTICAL_SYNC
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TIMER_SETUP 37
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%{preframe}
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VERTICAL_SYNC
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sta CXCLR ; clear collision register
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IFCONST PAL
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TIMER_SETUP 44
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ELSE
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TIMER_SETUP 36
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ENDIF
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%{!preframe}
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TIMER_WAIT
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TIMER_SETUP 192
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%{kernel}
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TIMER_WAIT
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TIMER_SETUP 29
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%{postframe}
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lda #0
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sta VBLANK
|
||||
IFNCONST PAL
|
||||
TIMER_SETUP 194
|
||||
ENDIF
|
||||
|
||||
%{!kernel}
|
||||
|
||||
IFNCONST PAL
|
||||
TIMER_WAIT
|
||||
ENDIF
|
||||
lda #2
|
||||
sta VBLANK
|
||||
IFCONST PAL
|
||||
TIMER_SETUP 36
|
||||
ELSE
|
||||
TIMER_SETUP 28
|
||||
ENDIF
|
||||
|
||||
%{!postframe}
|
||||
|
||||
TIMER_WAIT
|
||||
lsr SWCHB ; test Game Reset switch
|
||||
bcs .NoStart ; reset?
|
||||
jmp Start
|
||||
.NoStart:
|
||||
jmp .NextFrame
|
||||
`;
|
||||
|
||||
// TODO: two sticks?
|
||||
const TEMPLATE2 = `
|
||||
#ifdef EVENT_joyup
|
||||
lda #%00100000 ;Up?
|
||||
;#ifdef EVENT_joyleft
|
||||
lda #%01000000 ;Left?
|
||||
bit SWCHA
|
||||
bne SkipMoveUp
|
||||
%{joyup}
|
||||
.SkipMoveUp
|
||||
#endif
|
||||
bne %{.SkipMoveLeft}
|
||||
%{!joyleft}
|
||||
%{.SkipMoveLeft}
|
||||
;#endif
|
||||
`;
|
||||
|
||||
const TEMPLATE3 = `
|
||||
lda %{ypos},x
|
||||
const TEMPLATE3_L = `
|
||||
lda %{<xpos}
|
||||
sec
|
||||
sbc #1
|
||||
bcc .noclip
|
||||
sta %{ypos},x
|
||||
.noclip
|
||||
bcc %{.noclip}
|
||||
sta %{<xpos}
|
||||
%{.noclip}
|
||||
`;
|
||||
|
||||
const TEMPLATE3_R = `
|
||||
lda %{<xpos}
|
||||
clc
|
||||
adc #1
|
||||
cmp #160
|
||||
bcc %{.noclip}
|
||||
sta %{<xpos}
|
||||
%{.noclip}
|
||||
`;
|
||||
|
||||
const TEMPLATE4_S = `
|
||||
lda %{@sprite.bitmap+0} ; bitmap address
|
||||
sta temp+0 ; temp space
|
||||
lda %{@sprite.bitmap+1} ; bitmap address
|
||||
sta temp+1 ; temp space
|
||||
txa ; TODO
|
||||
asl
|
||||
tya
|
||||
lda %{<bitmap} ; bitmap address
|
||||
tay
|
||||
lda bitmap_bitmapdata_b0,y
|
||||
sta %{$0},y
|
||||
lda bitmap_bitmapdata_b8,y
|
||||
sta %{$1},y
|
||||
lda colormap_colormapdata_b0,y
|
||||
sta %{$2},y
|
||||
lda colormap_colormapdata_b0,y
|
||||
sta %{$3},y
|
||||
lda sprite_height_b0,y
|
||||
sta %{$4},y
|
||||
lda ypos_ypos_b0,y
|
||||
sta %{$5},y
|
||||
`
|
||||
|
||||
const TEMPLATE4_K = `
|
||||
ldx %{kernel.numlines} ; lines in kernel
|
||||
ldx #192 ; lines in kernel
|
||||
LVScan
|
||||
txa ; X -> A
|
||||
sec ; set carry for subtract
|
||||
sbc YPos ; local coordinate
|
||||
cmp %{sprite.height} ; in sprite?
|
||||
sbc %{$5} ; local coordinate
|
||||
cmp %{$4} ; in sprite? (height)
|
||||
bcc InSprite ; yes, skip over next
|
||||
lda #0 ; not in sprite, load 0
|
||||
InSprite
|
||||
tay ; local coord -> Y
|
||||
lda (temp+0),y ; lookup color
|
||||
lda (%{$0}),y ; lookup color
|
||||
sta WSYNC ; sync w/ scanline
|
||||
sta GRP0 ; store bitmap
|
||||
lda (temp+2),y ; lookup color
|
||||
lda (%{$2}),y ; lookup color
|
||||
sta COLUP0 ; store color
|
||||
dex ; decrement X
|
||||
bne LVScan ; repeat until 192 lines
|
||||
`;
|
||||
|
||||
const SET_XPOS = `
|
||||
lda %{sprite.xpos}
|
||||
ldx %(sprite.plyrindex}
|
||||
jsr SetHorizPos
|
||||
lda %{<xpos}
|
||||
ldy %{<plyrindex}
|
||||
jsr %{^SetHorizPos}
|
||||
`
|
||||
|
||||
const SETHORIZPOS = `
|
||||
SetHorizPos: subroutine
|
||||
sta WSYNC ; start a new line
|
||||
SLEEP 3
|
||||
sec ; set carry flag
|
||||
SetHorizPosLoop:
|
||||
sbc #15 ; subtract 15
|
||||
bcs SetHorizPosLoop ; branch until negative
|
||||
SetHorizPosAfter:
|
||||
ASSERT_SAME_PAGE SetHorizPosLoop, SetHorizPosAfter
|
||||
eor #7 ; calculate fine offset
|
||||
asl
|
||||
asl
|
||||
asl
|
||||
asl
|
||||
sta RESP0,x ; fix coarse position
|
||||
sta HMP0,x ; set fine offset
|
||||
sta WSYNC
|
||||
Return: ; for SLEEP macro, etc.
|
||||
rts ; return to caller
|
||||
; SetHorizPos routine
|
||||
; A = X coordinate
|
||||
; Y = player number (0 or 1)
|
||||
SetHorizPos
|
||||
sta WSYNC ; start a new line
|
||||
sec ; set carry flag
|
||||
DivideLoop
|
||||
sbc #15 ; subtract 15
|
||||
bcs DivideLoop ; branch until negative
|
||||
eor #7 ; calculate fine offset
|
||||
asl
|
||||
asl
|
||||
asl
|
||||
asl
|
||||
sta RESP0,y ; fix coarse position
|
||||
sta HMP0,y ; set fine offset
|
||||
rts ; return to caller
|
||||
`
|
||||
|
||||
function test() {
|
||||
@ -559,10 +738,10 @@ function test() {
|
||||
{name:'colormap', dtype:'ref', query:{include:['colormap']}},
|
||||
]})
|
||||
let c_bitmap = em.defineComponent({name:'bitmap', fields:[
|
||||
{name:'data', dtype:'array', elem:{ dtype:'int', lo:0, hi:255 }}
|
||||
{name:'bitmapdata', dtype:'array', elem:{ dtype:'int', lo:0, hi:255 }}
|
||||
]})
|
||||
let c_colormap = em.defineComponent({name:'colormap', fields:[
|
||||
{name:'data', dtype:'array', elem:{ dtype:'int', lo:0, hi:255 }}
|
||||
{name:'colormapdata', dtype:'array', elem:{ dtype:'int', lo:0, hi:255 }}
|
||||
]})
|
||||
let c_xpos = em.defineComponent({name:'xpos', fields:[
|
||||
{name:'xpos', dtype:'int', lo:0, hi:255}
|
||||
@ -580,19 +759,20 @@ function test() {
|
||||
|
||||
// TODO: where is kernel numlines?
|
||||
// temp between preframe + frame?
|
||||
// TODO: check names for identifierness
|
||||
em.defineSystem({
|
||||
name:'kernel-simple',
|
||||
tempbytes:4,
|
||||
name:'kernel_simple',
|
||||
tempbytes:8,
|
||||
query:{
|
||||
include:['sprite','bitmap','colormap','ypos'],
|
||||
include:['sprite','hasbitmap','hascolormap','ypos'],
|
||||
},
|
||||
actions:[
|
||||
{ text:TEMPLATE4_S, event:'preframe', iterate:'once' },
|
||||
{ text:TEMPLATE4_S, event:'preframe', iterate:'each' },
|
||||
{ text:TEMPLATE4_K, event:'kernel', iterate:'once' },
|
||||
]
|
||||
})
|
||||
em.defineSystem({
|
||||
name:'set-xpos',
|
||||
name:'set_xpos',
|
||||
query:{
|
||||
include:['sprite','xpos']
|
||||
},
|
||||
@ -637,12 +817,20 @@ function test() {
|
||||
]
|
||||
});
|
||||
em.defineSystem({
|
||||
name:'simple-move',
|
||||
name:'simple_move',
|
||||
query:{
|
||||
include:['player','xpos','ypos']
|
||||
include:['player','xpos']
|
||||
},
|
||||
actions:[
|
||||
{ text:TEMPLATE3, event:'joyup', iterate:'each' }
|
||||
{ text:TEMPLATE3_L, event:'joyleft', iterate:'once' }, // TODO: event source?
|
||||
{ text:TEMPLATE3_R, event:'joyright', iterate:'once' }, // TODO: event source?
|
||||
]
|
||||
});
|
||||
em.defineSystem({
|
||||
name:'SetHorizPos',
|
||||
query:{ include:[] },
|
||||
actions:[
|
||||
{ text:SETHORIZPOS, event:'SetHorizPos', iterate:'once' }, // TODO: event source?
|
||||
]
|
||||
});
|
||||
|
||||
@ -653,10 +841,10 @@ function test() {
|
||||
|
||||
let e_bitmap0 = root.newEntity({components:[c_bitmap]});
|
||||
// TODO: store array sizes?
|
||||
root.setConstValue(e_bitmap0, c_bitmap, 'data', new Uint8Array([1,2,3,4,5]));
|
||||
root.setConstValue(e_bitmap0, c_bitmap, 'bitmapdata', new Uint8Array([0,2,4,6,8,15,0]));
|
||||
|
||||
let e_colormap0 = root.newEntity({components:[c_colormap]});
|
||||
root.setConstValue(e_colormap0, c_colormap, 'data', new Uint8Array([1,2,3,4,5]));
|
||||
root.setConstValue(e_colormap0, c_colormap, 'colormapdata', new Uint8Array([0,3,6,9,12,14,0]));
|
||||
|
||||
let ea_playerSprite = {components:[c_sprite,c_hasbitmap,c_hascolormap,c_xpos,c_ypos,c_player]};
|
||||
let e_player0 = root.newEntity(ea_playerSprite);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user