Trevor Merritt
e5c2319803
updates display of ben eater pc doesnt blow up when creating a rom chip anymore doesnt blow up when creating a pc anymore
79 lines
2.3 KiB
Rust
79 lines
2.3 KiB
Rust
use macroquad::prelude::*;
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use crate::parts::address_bus::AddressBus;
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use crate::parts::data_bus::DataBus;
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pub struct DisplayMatrix {
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width: f32,
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height: f32,
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text_buffer: String,
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data_bus: DataBus,
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rs: bool,
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rw: bool,
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cursor_position: u8
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}
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impl DisplayMatrix {
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pub fn new(width: f32, height: f32) -> DisplayMatrix {
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DisplayMatrix {
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width,
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height,
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text_buffer: String::from(""),
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data_bus: DataBus::new(),
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rs: false,
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rw: false,
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cursor_position: 0x00
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}
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}
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/// Tick
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///
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/// Checks the data bus and sees what the setup is.
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///
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/// 0 0 0 0 0 0 0 1 -> Clear Display
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/// 0 0 0 0 0 0 1 - -> Return Home
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/// 0 0 0 0 0 0 A B -> Sets cursor move direction and shift
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/// A -> 0 = Insert, 1 = Delete
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/// B -> Scroll bool
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/// 0 0 0 0 1 D C B -> Sets display mode
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/// D -> Display On/Off
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/// C -> Cursor On/Off
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/// B -> Blink
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pub fn tick(&mut self) {
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// parse whats on the data bus.
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}
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pub fn set_busses(&mut self, address_bus: &mut AddressBus, data_bus: &mut DataBus) {
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}
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pub fn push_letter(&mut self, letter_to_push: char) {
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self.cursor_position += 1;
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self.text_buffer.push(letter_to_push)
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}
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pub fn clear_display(&mut self) {
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self.cursor_position = 0;
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self.text_buffer.clear()
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}
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pub fn render(&self, x_offset: f32, y_offset: f32) {
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DisplayMatrix::draw_square(x_offset,
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y_offset,
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x_offset + self.width ,
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y_offset + self.height,
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BLACK);
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let mut tmp = self.text_buffer.clone();
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tmp.push('#');
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draw_text(&*tmp, x_offset + 5.0, y_offset + 20.0, 20.0, BLACK);
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}
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fn draw_square(x1: f32, y1: f32, x2: f32, y2: f32, color: Color) {
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// println!("Square from {x1:2.0}x{y1:2.0} to {x2:2.0}x{y2:2.0} with {:?}", color);
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draw_line(x1, y1, x2, y1, 1.0, color);
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draw_line(x1, y1, x1, y2, 1.0, color);
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draw_line(x1, y2, x2, y2, 1.0, color);
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draw_line(x2, y1, x2, y2, 1.0, color);
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}
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} |