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ecs: const values

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This commit is contained in:
Steven Hugg 2022-01-27 13:48:45 -06:00
parent 47461b5a28
commit c022c16dc2
1 changed files with 15 additions and 4 deletions
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19
src/common/ecs/ecs.ts
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@ -481,8 +481,17 @@ export class EntityScope {
// see if all entities have the same constant value
let constValues = new Set();
for (let e of entities) {
let constVal = e.consts[fieldName];
if (constVal) constValues.add(constVal);
let constVal = e.consts[mksymbol(component, fieldName)];
constValues.add(constVal); // constVal === undefined is allowed
}
// is it a constant?
if (constValues.size == 1) {
let value = constValues.values().next().value;
if (value !== undefined) {
if (bitofs == 0) return `#<${value}`;
if (bitofs == 8) return `#>${value}`;
// TODO: bitofs?
}
}
// TODO: offset > 0?
//let range = this.bss.getFieldRange(component, fieldName);
@ -711,7 +720,7 @@ const TEMPLATE3_D = `
const TEMPLATE4_S = `
.macro %{@KernelSetup} ent,ofs
lda #192
lda #192 ; TODO: numlines
sec
sbc ypos_ypos_b0+ent
sta %{$5}+ofs
@ -748,7 +757,8 @@ const TEMPLATE4_S = `
// https://atariage.com/forums/topic/129683-advice-on-a-masking-kernel/
// https://atariage.com/forums/topic/128147-having-trouble-with-2-free-floating-player-graphics/?tab=comments#comment-1547059
const TEMPLATE4_K = `
ldy #192 ; lines in kernel
lda %{<bgcolor}
ldy %{<lines}
@LVScan:
lda %{$4} ; height
dcp %{$5}
@ -978,6 +988,7 @@ function test() {
let scene = em.newScope("Scene", root);
let e_ekernel = root.newEntity({ components: [c_kernel] });
root.setConstValue(e_ekernel, c_kernel, 'lines', 192);
root.setConstValue(e_ekernel, c_kernel, 'bgcolor', 0x92);
let e_bitmap0 = root.newEntity({ components: [c_bitmap] });
// TODO: store array sizes?