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SectrPrototype/code/input.odin
Ed_ 43a1c20d73 General refactors to various files 
* Moved all mapped procedure overloads to grime.odin
* Removed extraneous entity_box related procedures
* Major refactor to grime_array its header is now allocated as part of its initialization
*
2024-03-05 10:40:28 -05:00

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// TODO(Ed) : This if its gets larget can be moved to its own package
package sectr
import "base:runtime"
AnalogAxis :: f32
AnalogStick :: struct {
X, Y : f32
}
DigitalBtn :: struct {
half_transitions : i32,
ended_down : b32
}
btn_pressed :: proc( btn : DigitalBtn ) -> b32 {
return btn.ended_down && btn.half_transitions > 0
}
btn_released :: proc ( btn : DigitalBtn ) -> b32 {
return btn.ended_down == false && btn.half_transitions > 0
}
MaxKeyboardKeys :: 256
KeyboardKey :: enum u32 {
null = 0x00,
enter = 0x01,
tab = 0x02,
space = 0x03,
bracket_open = 0x04,
bracket_close = 0x05,
semicolon = 0x06,
apostrophe = 0x07,
comma = 0x08,
period = 0x09,
// 0x0A
// 0x0B
// 0x0C
// 0x0D
// 0x0E
// 0x0F
caps_lock = 0x10,
scroll_lock = 0x11,
num_lock = 0x12,
left_alt = 0x13,
left_shit = 0x14,
left_control = 0x15,
right_alt = 0x16,
right_shift = 0x17,
right_control = 0x18,
// 0x19
// 0x1A
// 0x1B
// 0x1C
// 0x1D
// 0x1C
// 0x1D
escape = 0x1F,
F1 = 0x20,
F2 = 0x21,
F3 = 0x22,
F4 = 0x23,
F5 = 0x24,
F6 = 0x25,
F7 = 0x26,
F8 = 0x27,
F9 = 0x28,
F10 = 0x29,
F11 = 0x2A,
F12 = 0x2B,
print_screen = 0x2C,
pause = 0x2D,
// = 0x2E,
backtick = 0x2F,
nrow_0 = 0x30,
nrow_1 = 0x31,
nrow_2 = 0x32,
nrow_3 = 0x33,
nrow_4 = 0x34,
nrow_5 = 0x35,
nrow_6 = 0x36,
nrow_7 = 0x37,
nrow_8 = 0x38,
nrow_9 = 0x39,
hyphen = 0x3A,
equals = 0x3B,
backspace = 0x3C,
backslash = 0x3D,
slash = 0x3E,
// = 0x3F,
// = 0x40,
A = 0x41,
B = 0x42,
C = 0x43,
D = 0x44,
E = 0x45,
F = 0x46,
G = 0x47,
H = 0x48,
I = 0x49,
J = 0x4A,
K = 0x4B,
L = 0x4C,
M = 0x4D,
N = 0x4E,
O = 0x4F,
P = 0x50,
Q = 0x51,
R = 0x52,
S = 0x53,
T = 0x54,
U = 0x55,
V = 0x56,
W = 0x57,
X = 0x58,
Y = 0x59,
Z = 0x5A,
insert = 0x5B,
delete = 0x5C,
home = 0x5D,
end = 0x5E,
page_up = 0x5F,
page_down = 0x60,
npad_0 = 0x61,
npad_1 = 0x62,
npad_2 = 0x63,
npad_3 = 0x64,
npad_4 = 0x65,
npad_5 = 0x66,
npad_6 = 0x67,
npad_7 = 0x68,
npad_8 = 0x69,
npad_9 = 0x6A,
npad_decimal = 0x6B,
npad_equals = 0x6C,
npad_plus = 0x6D,
npad_minus = 0x6E,
npad_multiply = 0x6F,
npad_divide = 0x70,
npad_enter = 0x71,
count = 0x72
}
KeyboardState :: struct #raw_union {
keys : [MaxKeyboardKeys] DigitalBtn,
using individual : struct {
enter,
tab,
space,
bracket_open,
bracket_close,
semicolon,
apostrophe,
comma,
period : DigitalBtn,
__0x0A_0x0F_Unassigned__ : [ 6 * size_of( DigitalBtn )] u8,
caps_lock,
scroll_lock,
num_lock,
left_alt,
left_shift,
left_control,
right_alt,
right_shift,
right_control : DigitalBtn,
__0x19_0x1D_Unassigned__ : [ 6 * size_of( DigitalBtn )] u8,
escape,
F1,
F2,
F3,
F4,
F5,
F6,
F7,
F8,
F9,
F10,
F11,
F12 : DigitalBtn,
print_screen,
pause : DigitalBtn,
__0x2E_Unassigned__ : [size_of(DigitalBtn)] u8,
backtick,
nrow_0,
nrow_1,
nrow_2,
nrow_3,
nrow_4,
nrow_5,
nrow_6,
nrow_7,
nrow_8,
nrow_9,
hyphen,
equals,
backspace : DigitalBtn,
backslash,
slash : DigitalBtn,
__0x3F_0x40_Unassigned__ : [ 2 * size_of(DigitalBtn)] u8,
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z : DigitalBtn,
insert,
delete,
home,
end,
page_up,
page_down : DigitalBtn,
npad_0,
npad_1,
npad_2,
npad_3,
npad_4,
npad_5,
npad_6,
npad_7,
npad_8,
npad_9,
npad_decimal,
npad_equals,
npad_plus,
npad_minus,
npad_multiply,
npad_divide,
npad_enter : DigitalBtn
}
}
MaxMouseBtns :: 16
MouseBtn :: enum u32 {
Left = 0x0,
Middle = 0x1,
Right = 0x2,
Side = 0x3,
Forward = 0x4,
Back = 0x5,
Extra = 0x6,
count
}
MouseState :: struct {
using _ : struct #raw_union {
btns : [16] DigitalBtn,
using individual : struct {
left, middle, right : DigitalBtn,
side, forward, back, extra : DigitalBtn
}
},
pos, delta : Vec2,
vertical_wheel, horizontal_wheel : AnalogAxis
}
InputState :: struct {
keyboard : KeyboardState,
mouse : MouseState
}
import "core:os"
import c "core:c/libc"
import rl "vendor:raylib"
poll_input :: proc( old, new : ^ InputState )
{
input_process_digital_btn :: proc( old_state, new_state : ^ DigitalBtn, is_down : b32 )
{
new_state.ended_down = is_down
had_transition := old_state.ended_down != new_state.ended_down
if had_transition {
new_state.half_transitions += 1
}
else {
new_state.half_transitions = 0
}
}
// Keyboard
{
check_range :: proc( old, new : ^ InputState, start, end : i32 )
{
for id := start; id < end; id += 1
{
// TODO(Ed) : LOOK OVER THIS...
entry_old := & old.keyboard.keys[id - 1]
entry_new := & new.keyboard.keys[id - 1]
key_id := cast(KeyboardKey) id
is_down := cast(b32) rl.IsKeyDown( to_raylib_key(id) )
input_process_digital_btn( entry_old, entry_new, is_down )
}
}
DeadBound_1 :: 0x0A
DeadBound_2 :: 0x2E
DeadBound_3 :: 0x19
DeadBound_4 :: 0x3F
check_range( old, new, cast(i32) KeyboardKey.enter, DeadBound_1 )
check_range( old, new, cast(i32) KeyboardKey.caps_lock, DeadBound_2 )
check_range( old, new, cast(i32) KeyboardKey.escape, DeadBound_3 )
check_range( old, new, cast(i32) KeyboardKey.backtick, DeadBound_4 )
check_range( old, new, cast(i32) KeyboardKey.A, cast(i32) KeyboardKey.count )
}
// Mouse
{
// Process Buttons
for id : i32 = 0; id < i32(MouseBtn.count); id += 1
{
old_btn := & old.mouse.btns[id]
new_btn := & new.mouse.btns[id]
mouse_id := cast(MouseBtn) id
is_down := cast(b32) rl.IsMouseButtonDown( to_raylib_mouse_btn(id) )
input_process_digital_btn( old_btn, new_btn, is_down )
}
new.mouse.pos = rl.GetMousePosition() - transmute(Vec2) get_state().app_window.extent
new.mouse.delta = rl.GetMouseDelta()
new.mouse.vertical_wheel = rl.GetMouseWheelMove()
}
}
record_input :: proc( replay_file : os.Handle, input : ^ InputState ) {
raw_data := slice_ptr( transmute(^ byte) input, size_of(InputState) )
file_write( replay_file, raw_data )
}
play_input :: proc( replay_file : os.Handle, input : ^ InputState ) {
raw_data := slice_ptr( transmute(^ byte) input, size_of(InputState) )
total_read, result_code := file_read( replay_file, raw_data )
if result_code == os.ERROR_HANDLE_EOF {
file_rewind( replay_file )
load_snapshot( & Memory_App.snapshot[0] )
}
}
to_raylib_key :: proc( key : i32 ) -> rl.KeyboardKey {
@static raylib_key_lookup_table := [?] rl.KeyboardKey {
rl.KeyboardKey.KEY_NULL,
rl.KeyboardKey.ENTER,
rl.KeyboardKey.TAB,
rl.KeyboardKey.SPACE,
rl.KeyboardKey.LEFT_BRACKET,
rl.KeyboardKey.RIGHT_BRACKET,
rl.KeyboardKey.SEMICOLON,
rl.KeyboardKey.APOSTROPHE,
rl.KeyboardKey.COMMA,
rl.KeyboardKey.PERIOD,
cast(rl.KeyboardKey) 0, // 0x0A
cast(rl.KeyboardKey) 0, // 0x0B
cast(rl.KeyboardKey) 0, // 0x0C
cast(rl.KeyboardKey) 0, // 0x0D
cast(rl.KeyboardKey) 0, // 0x0E
cast(rl.KeyboardKey) 0, // 0x0F
rl.KeyboardKey.CAPS_LOCK,
rl.KeyboardKey.SCROLL_LOCK,
rl.KeyboardKey.NUM_LOCK,
rl.KeyboardKey.LEFT_ALT,
rl.KeyboardKey.LEFT_SHIFT,
rl.KeyboardKey.LEFT_CONTROL,
rl.KeyboardKey.RIGHT_ALT,
rl.KeyboardKey.RIGHT_SHIFT,
rl.KeyboardKey.RIGHT_CONTROL,
cast(rl.KeyboardKey) 0, // 0x0F
cast(rl.KeyboardKey) 0, // 0x0F
cast(rl.KeyboardKey) 0, // 0x0F
cast(rl.KeyboardKey) 0, // 0x0F
cast(rl.KeyboardKey) 0, // 0x0F
cast(rl.KeyboardKey) 0, // 0x0F
cast(rl.KeyboardKey) 0, // 0x0F
rl.KeyboardKey.ESCAPE,
rl.KeyboardKey.F1,
rl.KeyboardKey.F2,
rl.KeyboardKey.F3,
rl.KeyboardKey.F4,
rl.KeyboardKey.F5,
rl.KeyboardKey.F7,
rl.KeyboardKey.F8,
rl.KeyboardKey.F9,
rl.KeyboardKey.F10,
rl.KeyboardKey.F11,
rl.KeyboardKey.F12,
rl.KeyboardKey.PRINT_SCREEN,
rl.KeyboardKey.PAUSE,
cast(rl.KeyboardKey) 0, // 0x2E
rl.KeyboardKey.GRAVE,
cast(rl.KeyboardKey) '0',
cast(rl.KeyboardKey) '1',
cast(rl.KeyboardKey) '2',
cast(rl.KeyboardKey) '3',
cast(rl.KeyboardKey) '4',
cast(rl.KeyboardKey) '5',
cast(rl.KeyboardKey) '6',
cast(rl.KeyboardKey) '7',
cast(rl.KeyboardKey) '8',
cast(rl.KeyboardKey) '9',
rl.KeyboardKey.MINUS,
rl.KeyboardKey.EQUAL,
rl.KeyboardKey.BACKSPACE,
rl.KeyboardKey.BACKSLASH,
rl.KeyboardKey.SLASH,
cast(rl.KeyboardKey) 0, // 0x3F
cast(rl.KeyboardKey) 0, // 0x40
rl.KeyboardKey.A,
rl.KeyboardKey.B,
rl.KeyboardKey.C,
rl.KeyboardKey.D,
rl.KeyboardKey.E,
rl.KeyboardKey.F,
rl.KeyboardKey.G,
rl.KeyboardKey.H,
rl.KeyboardKey.I,
rl.KeyboardKey.J,
rl.KeyboardKey.K,
rl.KeyboardKey.L,
rl.KeyboardKey.M,
rl.KeyboardKey.N,
rl.KeyboardKey.O,
rl.KeyboardKey.P,
rl.KeyboardKey.Q,
rl.KeyboardKey.R,
rl.KeyboardKey.S,
rl.KeyboardKey.T,
rl.KeyboardKey.U,
rl.KeyboardKey.V,
rl.KeyboardKey.W,
rl.KeyboardKey.X,
rl.KeyboardKey.Y,
rl.KeyboardKey.Z,
rl.KeyboardKey.INSERT,
rl.KeyboardKey.DELETE,
rl.KeyboardKey.HOME,
rl.KeyboardKey.END,
rl.KeyboardKey.PAGE_UP,
rl.KeyboardKey.PAGE_DOWN,
rl.KeyboardKey.KP_0,
rl.KeyboardKey.KP_1,
rl.KeyboardKey.KP_2,
rl.KeyboardKey.KP_3,
rl.KeyboardKey.KP_4,
rl.KeyboardKey.KP_5,
rl.KeyboardKey.KP_6,
rl.KeyboardKey.KP_7,
rl.KeyboardKey.KP_8,
rl.KeyboardKey.KP_9,
rl.KeyboardKey.KP_DECIMAL,
rl.KeyboardKey.KP_EQUAL,
rl.KeyboardKey.KP_ADD,
rl.KeyboardKey.KP_SUBTRACT,
rl.KeyboardKey.KP_MULTIPLY,
rl.KeyboardKey.KP_DIVIDE,
rl.KeyboardKey.KP_ENTER }
return raylib_key_lookup_table[ key ]
}
to_raylib_mouse_btn :: proc( btn : i32 ) -> rl.MouseButton {
@static raylib_mouse_btn_lookup_table := [?] rl.MouseButton {
rl.MouseButton.LEFT,
rl.MouseButton.MIDDLE,
rl.MouseButton.RIGHT,
rl.MouseButton.SIDE,
rl.MouseButton.FORWARD,
rl.MouseButton.BACK,
rl.MouseButton.EXTRA,
}
return raylib_mouse_btn_lookup_table[ btn ]
}
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