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https://github.com/sehugg/8bitworkshop.git
synced 2024-06-01 05:41:31 +00:00
prevent backspace key from leaving browser page
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parent
e45806e8cf
commit
818386a5d2
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@ -3,7 +3,10 @@
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.segment "INIT"
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.segment "INIT"
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.segment "ONCE"
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.segment "ONCE"
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; don't use $800-$1fff :(
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.segment "STARTUP"
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.segment "STARTUP"
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jmp Start
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; use $4000- :)
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.segment "CODE"
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.segment "CODE"
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.define EQU =
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.define EQU =
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@ -146,7 +149,7 @@ PERFECT_AIM EQU $1
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;==============================
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;==============================
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; back up part of the zero page
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; back up part of the zero page
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;==============================
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;==============================
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Start:
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lda #>zero_page_save
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lda #>zero_page_save
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sta BASH
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sta BASH
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lda #<zero_page_save
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lda #<zero_page_save
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@ -3029,7 +3032,7 @@ check_paddles:
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LDY #0 ;INIT COUNTER
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LDY #0 ;INIT COUNTER
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NOP ;COMPENSATE FOR 1ST COUNT
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NOP ;COMPENSATE FOR 1ST COUNT
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NOP
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NOP
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PREAD2: LDA PADDL0,X ;COUNT EVERY 11 µSEC.
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PREAD2: LDA PADDL0,X ;COUNT EVERY 11 uSEC.
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BPL RTS2D ;BRANCH WHEN TIMED OUT
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BPL RTS2D ;BRANCH WHEN TIMED OUT
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INY ;INCREMENT COUNTER
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INY ;INCREMENT COUNTER
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BNE PREAD2 ;CONTINUE COUNTING
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BNE PREAD2 ;CONTINUE COUNTING
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@ -53,6 +53,9 @@ export enum KeyFlags {
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export function _setKeyboardEvents(canvas:HTMLElement, callback:KeyboardCallback) {
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export function _setKeyboardEvents(canvas:HTMLElement, callback:KeyboardCallback) {
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canvas.onkeydown = (e) => {
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canvas.onkeydown = (e) => {
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callback(e.which, 0, KeyFlags.KeyDown|_metakeyflags(e));
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callback(e.which, 0, KeyFlags.KeyDown|_metakeyflags(e));
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if (e.which == 8 || e.which == 9 || e.which == 27) { // eat backspace, tab, escape keys
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e.preventDefault();
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}
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};
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};
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canvas.onkeyup = (e) => {
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canvas.onkeyup = (e) => {
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callback(e.which, 0, KeyFlags.KeyUp|_metakeyflags(e));
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callback(e.which, 0, KeyFlags.KeyUp|_metakeyflags(e));
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@ -243,7 +243,9 @@ export class AppleII extends BasicScanlineMachine {
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} else if (flags & KeyFlags.KeyDown) {
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} else if (flags & KeyFlags.KeyDown) {
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code = 0;
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code = 0;
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switch (key) {
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switch (key) {
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case 8: code=8; break; // left
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case 13: code=13; break; // return
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case 13: code=13; break; // return
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case 27: code=27; break; // escape
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case 37: code=8; break; // left
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case 37: code=8; break; // left
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case 39: code=21; break; // right
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case 39: code=21; break; // right
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case 38: code=11; break; // up
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case 38: code=11; break; // up
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