ggez 0.4.0

Rust library to create a Good Game Easily
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140

//! Example that just prints out all the input events.

extern crate ggez;

use ggez::*;
use ggez::event::*;
use ggez::graphics::{DrawMode, Point2};
use std::env;
use std::path;

struct MainState {
    pos_x: i32,
    pos_y: i32,
    mouse_down: bool,
}

impl MainState {
    fn new() -> MainState {
        MainState {
            pos_x: 100,
            pos_y: 100,
            mouse_down: false,
        }
    }
}

impl event::EventHandler for MainState {
    fn update(&mut self, _ctx: &mut Context) -> GameResult<()> {
        Ok(())
    }

    fn draw(&mut self, ctx: &mut Context) -> GameResult<()> {
        graphics::clear(ctx);
        graphics::circle(ctx,
                         DrawMode::Fill,
                         Point2::new(self.pos_x as f32, self.pos_y as f32),
                         100.0,
                         1.0)?;
        graphics::present(ctx);
        Ok(())
    }

    fn mouse_button_down_event(&mut self,
                               _ctx: &mut Context,
                               button: MouseButton,
                               x: i32,
                               y: i32) {
        self.mouse_down = true;
        println!("Mouse button pressed: {:?}, x: {}, y: {}", button, x, y);
    }

    fn mouse_button_up_event(&mut self, _ctx: &mut Context, button: MouseButton, x: i32, y: i32) {
        self.mouse_down = false;
        println!("Mouse button released: {:?}, x: {}, y: {}", button, x, y);
    }

    fn mouse_motion_event(&mut self,
                          _ctx: &mut Context,
                          _state: MouseState,
                          x: i32,
                          y: i32,
                          xrel: i32,
                          yrel: i32) {
        if self.mouse_down {
            self.pos_x = x;
            self.pos_y = y;
        }
        println!("Mouse motion, x: {}, y: {}, relative x: {}, relative y: {}",
                 x,
                 y,
                 xrel,
                 yrel);
    }

    fn mouse_wheel_event(&mut self, _ctx: &mut Context, x: i32, y: i32) {
        println!("Mousewheel event, x: {}, y: {}", x, y);
    }


    fn key_down_event(&mut self, _ctx: &mut Context, keycode: Keycode, keymod: Mod, repeat: bool) {
        println!("Key pressed: {:?}, modifier {:?}, repeat: {}",
                 keycode,
                 keymod,
                 repeat);
    }
    fn key_up_event(&mut self, _ctx: &mut Context, keycode: Keycode, keymod: Mod, repeat: bool) {
        println!("Key released: {:?}, modifier {:?}, repeat: {}",
                 keycode,
                 keymod,
                 repeat);
    }

    fn controller_button_down_event(&mut self, _ctx: &mut Context, btn: Button, instance_id: i32) {
        println!("Controller button pressed: {:?} Controller_Id: {}",
                 btn,
                 instance_id);
    }

    fn controller_button_up_event(&mut self, _ctx: &mut Context, btn: Button, instance_id: i32) {
        println!("Controller button released: {:?} Controller_Id: {}",
                 btn,
                 instance_id);
    }

    fn controller_axis_event(&mut self,
                             _ctx: &mut Context,
                             axis: Axis,
                             value: i16,
                             instance_id: i32) {
        println!("Axis Event: {:?} Value: {} Controller_Id: {}",
                 axis,
                 value,
                 instance_id);
    }


    fn focus_event(&mut self, _ctx: &mut Context, gained: bool) {
        if gained {
            println!("Focus gained");
        } else {
            println!("Focus lost");
        }
    }
}

pub fn main() {
    let c = conf::Conf::new();
    let ctx = &mut Context::load_from_conf("input_test", "ggez", c).unwrap();

    // We add the CARGO_MANIFEST_DIR/resources do the filesystems paths so
    // we we look in the cargo project for files.
    if let Ok(manifest_dir) = env::var("CARGO_MANIFEST_DIR") {
        let mut path = path::PathBuf::from(manifest_dir);
        path.push("resources");
        ctx.filesystem.mount(&path, true);
    }

    let state = &mut MainState::new();
    event::run(ctx, state).unwrap();
}