-
Notifications
You must be signed in to change notification settings - Fork 2
/
demo.odin
134 lines (112 loc) · 4.21 KB
/
demo.odin
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
// A small test program to exercise most of TIGR's features.
package demo
import "tigr"
import "core:math"
import "core:fmt"
import "core:strings"
playerx, playery := f32(160), f32(200);
playerxs, playerys := f32(0), f32(0);
standing := true;
remaining := f32(0);
backdrop, screen : ^tigr.Tigr;
update :: proc(dt: f32) {
if remaining > 0 {
remaining -= dt;
}
// Read the keyboard and move the player.
if standing && tigr.key_down(screen, i32(tigr.TKey.TK_SPACE)) != 0 do playerys -= 200;
if tigr.key_held(screen, i32(tigr.TKey.TK_LEFT)) == 1 || tigr.key_held(screen, i32('A')) == 1 do playerxs -= 10;
if tigr.key_held(screen, i32(tigr.TKey.TK_RIGHT)) == 1 || tigr.key_held(screen, i32('D')) == 1 do playerxs += 10;
oldx, oldy := playerx, playery;
// Apply simply physics.
playerxs *= math.exp(-10.0 * dt);
playerys *= math.exp(-2.0 * dt);
playerys += dt * 200.0;
playerx += dt * playerxs;
playery += dt * playerys;
// Apply collision.
if playerx < 8 {
playerx = 8;
playerxs = 0;
}
if i32(playerx) > screen.w - 8.0 {
playerx = f32(screen.w - 8.0);
playerxs = 0;
}
// Apply playfield collision and stepping.
dx := (playerx - oldx) / 10.0;
dy := (playery - oldy) / 10.0;
standing = false;
for n in 0..<10 {
p := tigr.get(backdrop, i32(oldx), i32(oldy) - 1);
if p.r == 0 && p.g == 0 && p.b == 0 do oldy -= 1;
if p.r == 0 && p.g == 0 && p.b == 0 && playerys > 0 {
playerys = 0;
dy = 0;
standing = true;
}
oldx += dx;
oldy += dy;
}
playerx, playery = oldx, oldy;
}
main :: proc() {
// Load font.
font_file := tigr.load_image("imgs/font.png");
defer tigr.free(font_file);
tFont := tigr.load_font(font_file, 1252);
// Load our sprite.
squinkle := tigr.load_image("imgs/squinkle.png");
if squinkle == nil do tigr.error(nil, "Cannot load squinkle.png");
defer tigr.free(squinkle);
// Load some UTF-8 text.
greeting := tigr.read_file("greeting.txt", 0);
if greeting == nil do tigr.error(nil, "Cannot load greeting.txt");
// Make a window and an off-screen backdrop.
screen = tigr.window(320, 240, cstring(greeting), tigr.TIGR_2X);
defer tigr.free(screen);
backdrop = tigr.bitmap(screen.w, screen.h);
defer tigr.free(backdrop);
// Fill in the background.
tigr.clear(backdrop, tigr.rgb(80, 180, 255));
tigr.fill(backdrop, 0, 200, 320, 40, tigr.rgb(60, 120, 60));
tigr.fill(backdrop, 0, 200, 320, 3, tigr.rgb(0, 0, 0));
tigr.fill(backdrop, 0, 201, 320, 201, tigr.rgb(255,255,255));
// Enable post fx
tigr.set_post_fx(screen, 1, 1, 1, 2.0);
prevx, prevy, prev := i32(0), i32(0), i32(0);
chars: [4]rune;
for n in 0..<4 do chars[n] = '_';
// Repeat till they close the window.
for tigr.closed(screen) != 1 && tigr.key_down(screen, i32(tigr.TKey.TK_ESCAPE)) != 1 {
// Update the game.
dt := tigr.time();
update(dt);
// Read the mouse and draw lines when pressed.
x, y, b: i32;
tigr.mouse(screen, &x, &y, &b);
if b&1 == 1 {
if prev == 1 do tigr.line(backdrop, prevx, prevy, x ,y, tigr.rgb(0, 0, 0));
prevx, prevy, prev = x, y, 1;
} else {
prev = 0;
}
// Composite the backdrop and sprite onto the screen.
tigr.blit(screen, backdrop, 0, 0, 0, 0, backdrop.w, backdrop.h);
tigr.blit_alpha(screen, squinkle, i32(playerx - f32(squinkle.w/2)), i32(playery-f32(squinkle.h)), 0, 0, squinkle.w, squinkle.h, 1.0);
tigr.print(screen, tFont, 10, 10, tigr.rgba(0xc0,0xd0,0xff,0xc0), cstring(greeting));
tigr.print(screen, tFont, 10, 222, tigr.rgba(0xff,0xff,0xff,0xff), "A D + SPACE");
for {
c := tigr.read_char(screen);
if c == 0 do break;
for n in 1..<4 do chars[n-1] = chars[n];
chars[3] = rune(c);
}
// Print out the character buffer.
fmtChars := strings.clone_to_cstring(fmt.aprint("Chars: %s", chars));
tigr.print(screen, tFont, 160, 222, tigr.rgb(255,255,255), fmtChars);
delete(fmtChars);
// Update the window.
tigr.update(screen);
}
}