SilverEmber 4 years ago
parent
commit
2b02d29acb
  1. 181
      src/main.rs

181
src/main.rs

@ -1,6 +1,6 @@
use ggez::input::mouse::{self, MouseButton};
use ggez::event::{self, EventHandler}; use ggez::event::{self, EventHandler};
use ggez::graphics::{self, Color, DrawMode, Mesh, MeshBuilder}; use ggez::graphics::{self, Color, DrawMode, Mesh, MeshBuilder};
use ggez::input::mouse::{self, MouseButton};
use ggez::{Context, ContextBuilder, GameResult}; use ggez::{Context, ContextBuilder, GameResult};
use std::env; use std::env;
@ -16,16 +16,35 @@ struct Apr {
board: Vec<Vec<u8>>, board: Vec<Vec<u8>>,
grid: Mesh, grid: Mesh,
should_update_grid: bool, should_update_grid: bool,
// Your state here...
__test_state: usize,
//These would go in a dedicated Actor struct in the real game. actors: Vec<Actor>,
__test_pawn_image: graphics::Image, behaviours: Vec<Behaviour>,
__test_pawn_x: f32, }
__test_pawn_y: f32,
__test_pawn_held: bool, struct Behaviour {
__test_pawn_h_x: f32, moves: Vec<(u8, u8)>, //this is a placeholder
__test_pawn_h_y: f32, }
enum ActorPosn {
Board {
x: u8,
y: u8,
},
Floating {
x: f32,
y: f32,
held_x: f32,
held_y: f32,
},
}
use crate::ActorPosn::{Board, Floating};
struct Actor {
image: graphics::Image,
posn: ActorPosn,
behaviour: u8, //index into the behaviours array
} }
struct Piece { struct Piece {
@ -63,7 +82,7 @@ fn make_grid(ctx: &mut Context, r: i32, c: i32, board: &[Vec<u8>]) -> GameResult
6 => Color::BLUE, 6 => Color::BLUE,
7 => Color::MAGENTA, 7 => Color::MAGENTA,
_ => Color::BLACK, _ => Color::BLACK,
} },
)?; )?;
} }
} }
@ -81,6 +100,27 @@ fn make_board(r: i32, c: i32) -> Vec<Vec<u8>> {
init init
} }
fn closest_square_coords(x: f32, y: f32, col: i32, row: i32) -> (u8, u8) {
//First, normalise to within the grid.
let mut x = x;
x = x.max(START_X);
x = x.min(START_X + (BOARD_SQUARE_SIZE * col as f32) - 1.0);
let mut y = y;
y = y.max(START_Y);
y = y.min(START_Y + (BOARD_SQUARE_SIZE * row as f32) - 1.0);
//Then, remove the start x and y
x -= START_X;
y -= START_Y;
//Then, snap to board coords.
let x = (x / BOARD_SQUARE_SIZE) as u8;
let y = (y / BOARD_SQUARE_SIZE) as u8;
(x, y)
}
impl Apr { impl Apr {
pub fn new(_ctx: &mut Context, r: i32, c: i32) -> GameResult<Apr> { pub fn new(_ctx: &mut Context, r: i32, c: i32) -> GameResult<Apr> {
// Load/create resources such as images here. // Load/create resources such as images here.
@ -91,14 +131,15 @@ impl Apr {
grid: make_grid(_ctx, r, c, board.as_slice())?, grid: make_grid(_ctx, r, c, board.as_slice())?,
board, board,
should_update_grid: false, should_update_grid: false,
__test_state: 0,
actors: vec![Actor {
__test_pawn_image: graphics::Image::new(_ctx, "/pawn.png")?, image: graphics::Image::new(_ctx, "/pawn.png")?,
__test_pawn_x: 20.0, posn: Board { x: 0, y: 0 },
__test_pawn_y: 20.0, behaviour: 0,
__test_pawn_held: false, }],
__test_pawn_h_x: 0.0, behaviours: vec![Behaviour {
__test_pawn_h_y: 0.0 moves: vec![(0, 1)],
}], //the pawn can go ONE forwards
}) })
} }
@ -107,58 +148,49 @@ impl Apr {
self.should_update_grid = true; self.should_update_grid = true;
Ok(()) Ok(())
} }
fn closest_square_coords(&self, x: f32, y: f32) -> (f32, f32) {
//First, normalise to within the grid.
let mut x = x;
x = x.max(START_X);
x = x.min(START_X + (BOARD_SQUARE_SIZE * self.col as f32) - 1.0);
let mut y = y;
y = y.max(START_Y);
y = y.min(START_Y + (BOARD_SQUARE_SIZE * self.row as f32) - 1.0);
//Then, snap to top left.
x = (x / BOARD_SQUARE_SIZE).trunc() * BOARD_SQUARE_SIZE;
y = (y / BOARD_SQUARE_SIZE).trunc() * BOARD_SQUARE_SIZE;
(x, y)
} }
}
impl EventHandler for Apr { impl EventHandler for Apr {
fn update(&mut self, ctx: &mut Context) -> GameResult<()> { fn update(&mut self, ctx: &mut Context) -> GameResult<()> {
for _x in 0..self.col {
let c = self.__test_state % self.col as usize;
let r = (self.__test_state / self.row as usize) % self.row as usize;
self.set_colour(r, c, (self.board[r][c] + 1) % 8)?;
self.__test_state += 1;
}
let posn = mouse::position(ctx); let posn = mouse::position(ctx);
if self.__test_pawn_held { for actor in self.actors.iter_mut() {
if !mouse::button_pressed(ctx, MouseButton::Left) { // no long clicking and dragging match actor.posn {
let (x, y) = self.closest_square_coords(posn.x, posn.y); Floating {
self.__test_pawn_x = x; x: _,
self.__test_pawn_y = y; y: _,
self.__test_pawn_held = false; held_x,
held_y,
} => {
if !mouse::button_pressed(ctx, MouseButton::Left) {
// no long clicking and dragging
let (x, y) = closest_square_coords(posn.x, posn.y, self.col, self.row);
actor.posn = Board { x, y };
} else { } else {
self.__test_pawn_x = posn.x + self.__test_pawn_h_x; actor.posn = Floating {
self.__test_pawn_y = posn.y + self.__test_pawn_h_y; x: posn.x + held_x,
y: posn.y + held_y,
held_x,
held_y,
};
}
}
Board { x, y } => {
if mouse::button_pressed(ctx, MouseButton::Left) {
let (posx, posy) =
closest_square_coords(posn.x, posn.y, self.col, self.row);
if posx == x && posy == y {
let x = START_X + BOARD_SQUARE_SIZE * (x as f32);
let y = START_Y + BOARD_SQUARE_SIZE * (y as f32);
actor.posn = Floating {
x,
y,
held_x: x - posn.x,
held_y: y - posn.y,
};
}
}
} }
} else if mouse::button_pressed(ctx, MouseButton::Left) {
let posx = posn.x;
let posy = posn.y;
if posx >= self.__test_pawn_x && posx <= self.__test_pawn_x + BOARD_SQUARE_SIZE && posy >= self.__test_pawn_y && posy <= self.__test_pawn_y + BOARD_SQUARE_SIZE {
self.__test_pawn_h_x = self.__test_pawn_x - posx;
self.__test_pawn_h_y = self.__test_pawn_y - posy;
self.__test_pawn_held = true;
} }
} else {
self.set_colour(((self.__test_pawn_y - START_Y) / BOARD_SQUARE_SIZE) as usize, ((self.__test_pawn_x - START_X) / BOARD_SQUARE_SIZE) as usize, 3)?;
} }
Ok(()) Ok(())
} }
@ -171,7 +203,24 @@ impl EventHandler for Apr {
self.should_update_grid = false; self.should_update_grid = false;
} }
graphics::draw(ctx, &self.grid, drawparams)?; graphics::draw(ctx, &self.grid, drawparams)?;
graphics::draw(ctx, &self.__test_pawn_image, drawparams.dest([self.__test_pawn_x, self.__test_pawn_y]))?; for actor in &self.actors {
match actor.posn {
Floating {
x,
y,
held_x: _,
held_y: _,
} => graphics::draw(ctx, &actor.image, drawparams.dest([x, y]))?,
Board { x, y } => graphics::draw(
ctx,
&actor.image,
drawparams.dest([
START_X + BOARD_SQUARE_SIZE * (x as f32),
START_Y + BOARD_SQUARE_SIZE * (y as f32),
]),
)?,
}
}
// Draw code here... // Draw code here...
graphics::present(ctx) graphics::present(ctx)
} }
@ -188,9 +237,7 @@ fn main() -> GameResult<()> {
} }
// Make a Context. // Make a Context.
let (mut ctx, event_loop) = cb let (mut ctx, event_loop) = cb.build().expect("aieee, could not create ggez context!");
.build()
.expect("aieee, could not create ggez context!");
// Create an instance of your event handler. // Create an instance of your event handler.
// Usually, you should provide it with the Context object to // Usually, you should provide it with the Context object to

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