Trevor Merritt
67ca71ccb7
BUGFIX: Corrects runaway after drawing in my first schip rom scroll down, left, right all test with test rom assembler now assembles to the expected output it seems fixes incorrect loading of schip font to memory replaces schip font from new chatgpt feedback
58 lines
1.5 KiB
Rust
58 lines
1.5 KiB
Rust
use serde::{Deserialize, Serialize};
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use crate::constants::CHIP8_KEYBOARD;
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#[derive(Clone, Copy, Default, Serialize, Deserialize, Debug)]
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pub struct Keypad {
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keys: [bool; 0x10],
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}
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impl Keypad {
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pub fn format_as_string(&self) -> String {
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let mut return_value = String::new();
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// draw a 4x4 grid showing the keys with * filling the cells that are depressed
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for row in CHIP8_KEYBOARD.iter() {
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for (index, key) in row.iter().enumerate() {
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let is_lit = if self.keys[*key as usize] {
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"*".to_string()
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} else {
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char::from_digit(*key as u32, 16).unwrap_or(' ').to_string()
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};
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if index == 3 {
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return_value += format!("|{}|\n", is_lit).as_str();
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} else {
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return_value += format!("|{}", is_lit).as_str();
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}
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}
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}
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return_value
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}
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}
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impl Keypad {
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pub fn push_key(&mut self, key_index: u8) {
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self.keys[key_index as usize] = true;
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}
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pub fn release_key(&mut self, key_index: u8) {
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self.keys[key_index as usize] = false;
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}
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pub fn key_state(&self, key_index: u8) -> bool {
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self.keys[key_index as usize]
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}
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pub fn new() -> Keypad {
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Keypad::default()
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}
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pub fn pressed(&self, key: u8) -> bool {
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self.key_state(key)
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}
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pub fn released(&self, key: u8) -> bool {
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!self.key_state(key)
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}
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}
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