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
141
142
143
144
145
146
|
#ifndef app_hpp
#define app_hpp
#define app_memory_size (1024 * 1024 * 32)
#include <new>
#include <stdint.h>
struct Arena;
#define key_xmacro() \
x(key_unknown) \
x(key_A) \
x(key_B) \
x(key_C) \
x(key_D) \
x(key_E) \
x(key_F) \
x(key_G) \
x(key_H) \
x(key_I) \
x(key_J) \
x(key_K) \
x(key_L) \
x(key_M) \
x(key_N) \
x(key_O) \
x(key_P) \
x(key_Q) \
x(key_R) \
x(key_S) \
x(key_T) \
x(key_U) \
x(key_V) \
x(key_W) \
x(key_X) \
x(key_Y) \
x(key_Z) \
x(key_f1) \
x(key_f2) \
x(key_f3) \
x(key_f4) \
x(key_f5) \
x(key_f6) \
x(key_f7) \
x(key_f8) \
x(key_f9) \
x(key_f10) \
x(key_f11) \
x(key_f12) \
x(key_down) \
x(key_left) \
x(key_right) \
x(key_up) \
x(key_escape) \
x(key_return) \
x(key_backspace) \
x(key_tab) \
x(key_delete) \
x(key_home) \
x(key_end) \
x(key_page_up) \
x(key_page_down) \
x(key_insert) \
x(key_shift) \
x(key_control) \
x(key_super) \
x(key_alt) \
x(key_space) \
x(key_period) \
x(key_0) \
x(key_1) \
x(key_2) \
x(key_3) \
x(key_4) \
x(key_5) \
x(key_6) \
x(key_7) \
x(key_8) \
x(key_9) \
enum Key {
#define x(name) name,
key_xmacro()
#undef x
key_count
};
enum Mbtn {
mbtn_left,
mbtn_middle,
mbtn_right,
mbtn_count
};
enum Key_State {
key_state_pressed = 1 << 0,
key_state_just_pressed = 1 << 1,
key_state_just_released = 1 << 2
};
struct App_Internal;
struct App {
Arena* arena;
float dt;
int running, w, h;
int mx, my;
int scrollx, scrolly;
unsigned char key_states[key_count];
unsigned char mbtn_states[mbtn_count];
uint64_t begin_t, end_t;
App_Internal* internal;
template <typename T>
static T* create(const char* name) {
Arena* arena;
T* app = (T*)alloc(sizeof(T), arena);
app = new(app) T();
app->arena = arena;
app->running = 0;
app->init(name);
return app;
}
static void* alloc(int size, Arena*& arena);
void init(const char* name);
void destroy();
void begin();
void end();
Key_State ks(Key k) const;
Key_State ms(Mbtn k) const;
bool kp(Key k) const;
bool kjp(Key k) const;
bool kjr(Key k) const;
bool mp(Mbtn k) const;
bool mjp(Mbtn k) const;
bool mjr(Mbtn k) const;
void get_vk_exts(const char** exts, int& count);
virtual void on_resize() = 0;
};
#endif
|