added console

examples/test.rs

@@ -8,6 +8,7 @@ struct World {
     img: Rc<Image>,
     font: Rc<Tileset>,
     pos: Vec2<i32>,
+    map: HexMap,
 }
 
 fn main() {
@@ -22,11 +23,16 @@ impl Game for World {
             img: Image::load_data(include_bytes!("assets/test.gif")),
             font: Tileset::load_data(include_bytes!("assets/ega-8x14.gif"), Vec2 { x: 16, y: 16 }),
             pos: Vec2::zero(),
+            map: HexMap::new(
+                Vec2 { x: 27, y: 13 },
+                Tileset::load_data(include_bytes!("assets/hex2.gif"), Vec2 { x: 1, y: 1 }),
+            ),
         }
     }
 
     fn update(&mut self, window_state: &mut WindowState) {
         self.pos = window_state.mouse_pos();
+        window_state.log(format!("{}x{}", self.pos.x, self.pos.y).as_str());
     }
 
     fn on_event(&mut self, window_state: &mut WindowState, event: Event) {
@@ -40,7 +46,8 @@ impl Game for World {
 
     fn draw(&self, target: &mut Image) {
         target.clear();
-        target.draw_image(Vec2 { x: 200, y: 100 }, &self.img);
+        target.draw_hexmap(Vec2 { x: 0, y: 0 }, &self.map);
+        /*target.draw_image(Vec2 { x: 200, y: 100 }, &self.img);
         target.draw_image(self.pos, self.font.get(68));
 
         target.draw_line(
@@ -51,5 +58,7 @@ impl Game for World {
             self.pos,
             10,
         );
+
+         */
     }
 }

src/console.rs

@@ -0,0 +1,65 @@
+use crate::{Image, Rect, Tileset, Vec2};
+use std::collections::VecDeque;
+
+pub(crate) struct Console {
+    lines: VecDeque<String>,
+    max_lines: usize,
+    max_line_length: usize,
+}
+
+impl Console {
+    pub(crate) fn new(max_lines: i32, max_line_length: i32) -> Self {
+        Self {
+            lines: VecDeque::new(),
+            max_lines: max_lines as usize,
+            max_line_length: max_line_length as usize,
+        }
+    }
+
+    pub(crate) fn add(&mut self, str: &str) {
+        if str.len() > self.max_line_length {
+            let (first, rest) = str.split_at(self.max_line_length);
+            self.add(first);
+            self.add(rest);
+        } else {
+            self.lines.push_back(str.into());
+            while self.lines.len() > self.max_lines {
+                self.lines.pop_front();
+            }
+        }
+    }
+
+    pub(crate) fn draw_to_image(&self, target: &mut Image, pos: Vec2<i32>, font: &Tileset) {
+        let height = self.max_lines as i32 * font.tile_size().y;
+        let width = self.max_line_length as i32 * font.tile_size().x;
+        target.fill_rect(
+            Rect {
+                pos,
+                size: Vec2 {
+                    x: width,
+                    y: height,
+                },
+            },
+            254,
+        );
+        let y = height + pos.y;
+        target.draw_line(
+            Vec2 { x: pos.x, y },
+            Vec2 {
+                x: pos.x + width,
+                y,
+            },
+            253,
+        );
+        for (i, str) in self.lines.iter().enumerate() {
+            target.draw_string(
+                pos + Vec2 {
+                    x: 0,
+                    y: i as i32 * font.tile_size().y,
+                },
+                str,
+                font,
+            );
+        }
+    }
+}

src/hexmap.rs

@@ -1,19 +1,20 @@
-use crate::Vec2;
+use crate::{Image, Tileset, Vec2};
+use std::rc::Rc;
 
 //odd-q vertical layout https://www.redblobgames.com/grids/hexagons
 pub struct HexMap {
     size: Vec2<i32>,
     data: Vec<i32>,
-    tile_size: Vec2<i32>,
+    tileset: Rc<Tileset>,
 }
 
 impl HexMap {
     //pub static
-    pub fn new(size: Vec2<i32>, tile_size: Vec2<i32>) -> Self {
+    pub fn new(size: Vec2<i32>, tileset: Rc<Tileset>) -> Self {
         HexMap {
             size,
             data: vec![0; size.size()],
-            tile_size,
+            tileset,
         }
     }
 
@@ -31,6 +32,22 @@ impl HexMap {
         self.size
     }
 
+    //pubcrate
+    pub(crate) fn draw_tile_to_image(
+        &self,
+        target: &mut Image,
+        coord: Vec2<i32>,
+        offset: Vec2<i32>,
+    ) {
+        let x = coord.x * (self.tileset.tile_size().x as f64 * 3.0 / 4.0).ceil() as i32;
+        let y =
+            coord.y * self.tileset.tile_size().y + (coord.x % 2) * (self.tileset.tile_size().y / 2);
+        target.draw_image(
+            Vec2 { x, y } + offset,
+            self.tileset.get(self.data[self.coord_to_idx(coord)]),
+        )
+    }
+
     //priv
     fn coord_to_idx(&self, coord: Vec2<i32>) -> usize {
         (coord.x + coord.y * self.size.x) as usize

src/image.rs

@@ -1,5 +1,5 @@
 use crate::vec2::Vec2;
-use crate::{HexMap, Rect};
+use crate::{HexMap, Rect, Tileset};
 use std::fs;
 use std::fs::File;
 use std::rc::Rc;
@@ -55,9 +55,13 @@ impl Image {
         self.data.as_slice()
     }
 
-    //pub fn draw_hexmap(&mut self, pos: Vec2<i32>, hexmap: &HexMap) {
-    //    for pos in Vec2::zero()..pos {}
-    //}
+    pub fn draw_hexmap(&mut self, pos: Vec2<i32>, hexmap: &HexMap) {
+        for i in hexmap.size().to_rect().iter() {
+            if i.x % 1 == 0 {
+                hexmap.draw_tile_to_image(self, i, pos);
+            }
+        }
+    }
 
     pub fn draw_image(&mut self, pos: Vec2<i32>, image: &Image) {
         self.draw_image_partial(
@@ -110,10 +114,30 @@ impl Image {
         }
     }
 
+    pub fn draw_string(&mut self, pos: Vec2<i32>, str: &str, font: &Tileset) {
+        assert!(str.is_ascii());
+        let array = str.as_bytes();
+        for i in 0..array.len() {
+            self.draw_image(
+                Vec2 {
+                    x: pos.x + font.tile_size().x * i as i32,
+                    y: pos.y,
+                },
+                font.get(array[i] as i32),
+            );
+        }
+    }
+
     pub fn fill(&mut self, color: u8) {
         self.data.fill(color);
     }
 
+    pub fn fill_rect(&mut self, rect: Rect<i32>, color: u8) {
+        for pos in rect.iter() {
+            self.set_pixel(pos, color);
+        }
+    }
+
     pub fn get_pixel(&self, pos: Vec2<i32>) -> u8 {
         self.data[(pos.x + self.size.x * pos.y) as usize]
     }

src/lib.rs

@@ -1,3 +1,4 @@
+mod console;
 mod hexmap;
 mod image;
 mod rect;
@@ -5,6 +6,7 @@ mod tileset;
 mod vec2;
 mod window;
 
+pub use console::*;
 pub use hexmap::*;
 pub use image::*;
 pub use rect::*;

src/rect.rs

@@ -1,4 +1,5 @@
 use crate::vec2::Vec2;
+use crate::Vec2Iter;
 use num::{Num, ToPrimitive};
 
 #[derive(Copy, Clone)]
@@ -19,6 +20,10 @@ impl<T: Num + Copy + ToPrimitive + PartialOrd> Rect<T> {
         self.pos + self.size
     }
 
+    pub fn iter(&self) -> Vec2Iter<T> {
+        self.pos.iter_to(self.size)
+    }
+
     pub fn contains(&self, point: Vec2<T>) -> bool {
         let p2 = self.pos2();
         point.x >= self.pos.x && point.y >= self.pos.y && point.x < p2.x && point.y < p2.y

src/tileset.rs

@@ -20,7 +20,7 @@ impl Tileset {
             x: img.size().x / tile_count.x,
             y: img.size().y / tile_count.y,
         };
-        for tile in Vec2::zero().iter_to(tile_count) {
+        for tile in tile_count.to_rect().iter() {
             let mut image = Image::new(size);
             image.draw_image_partial(
                 Vec2::zero(),

src/window.rs

@@ -1,11 +1,14 @@
+use crate::console::Console;
 use crate::image::Image;
 use crate::vec2::Vec2;
+use crate::Tileset;
 use rand::Rng;
 use std::cmp::{max, min};
 use std::num::NonZeroU32;
 use std::time::{Duration, Instant};
 use winit::dpi::LogicalSize;
-use winit::event::VirtualKeyCode::Escape;
+use winit::event::ElementState::Pressed;
+use winit::event::VirtualKeyCode::{Escape, F12};
 use winit::event::{
     ElementState, Event as WinitEvent, MouseButton as WinitMouseButton, WindowEvent,
 };
@@ -37,13 +40,21 @@ pub trait Game {
 pub struct WindowState {
     palette: [u32; 256],
     mouse_pos: Vec2<i32>,
+    console: Console,
 }
 
 impl WindowState {
-    fn new() -> Self {
+    pub fn log(&mut self, msg: &str) {
+        self.console.add(msg);
+    }
+}
+
+impl WindowState {
+    fn new(console_size: Vec2<i32>) -> Self {
         WindowState {
             palette: [0u32; 256],
             mouse_pos: Vec2::zero(),
+            console: Console::new(console_size.y, console_size.x),
         }
     }
     pub fn set_palette(&mut self, index: u8, r: u8, g: u8, b: u8) {
@@ -84,8 +95,15 @@ pub fn run<T: Game + 'static>(width: i32, height: i32) {
         x: width,
         y: height,
     });
-    let mut window_state = WindowState::new();
+    let internal_font = Tileset::load_data(include_bytes!("ega-8x14.gif"), Vec2 { x: 16, y: 16 });
+    let mut window_state = WindowState::new(Vec2 {
+        x: width / internal_font.tile_size().x,
+        y: height / internal_font.tile_size().y / 3,
+    });
     let mut game = T::new(&mut window_state);
+    window_state.console.add("Initialising Skunk2d");
+
+    let mut display_console = true;
 
     let mut frames_since_last_second = 0;
     let mut last_second = Instant::now();
@@ -129,6 +147,9 @@ pub fn run<T: Game + 'static>(width: i32, height: i32) {
                             if k == Escape {
                                 *control_flow = ControlFlow::Exit;
                             }
+                            if k == F12 && input.state == Pressed {
+                                display_console = !display_console;
+                            }
                         };
                     }
                     WindowEvent::ModifiersChanged(_) => {}
@@ -181,6 +202,13 @@ pub fn run<T: Game + 'static>(width: i32, height: i32) {
                 if Instant::now() - last_frame >= target_frame_duration {
                     game.update(&mut window_state);
                     game.draw(&mut screen);
+                    if display_console {
+                        window_state.console.draw_to_image(
+                            &mut screen,
+                            Vec2::zero(),
+                            &internal_font,
+                        );
+                    }
 
                     let size = window.inner_size();
                     surface