init dump

2024-05-05 17:01:56 +10:00
commit 608cf45822
53 changed files with 19224 additions and 0 deletions
--- a/Sources/JolkEngine/Input.swift
+++ b/Sources/JolkEngine/Input.swift
@ -0,0 +1,155 @@
+import SDL2
+
+
+public class Input
+{
+	private static let _instance = Input()
+
+	public static var instance: Input { _instance }
+
+	//private let _UP: UInt8      = 0
+	//private let _PRESS: UInt8   = 1
+	//private let _DOWN: UInt8    = 2
+	//private let _RELEASE: UInt8 = 3
+
+	private static let _UP: UInt8      = 0b000
+	private static let _DOWN: UInt8    = 0b010
+	private static let _IMPULSE: UInt8 = 0b001
+	private static let _REPEAT: UInt8  = 0b100
+	private static let _PRESS: UInt8   = _DOWN | _IMPULSE
+	private static let _RELEASE: UInt8 = _UP | _IMPULSE
+
+	private var _keys = [UInt8](repeating: _UP, count: Int(SDL_NUM_SCANCODES.rawValue))
+
+	private init() {}
+
+	internal func newTick()
+	{
+		//_keys = _keys.map({ i in (i & 0x1) == 0x1 ? ((i &+ 1) & 0x3) : i })
+		_keys = _keys.map({ $0 & ~Input._IMPULSE })
+		//for i in 0..<Int(SDL_NUM_SCANCODES.rawValue)
+		//{
+		//	_keys[i] &= ~0x1
+		//}
+	}
+
+	internal func pressEvent(scan: SDL_Scancode)
+	{
+		_keys[Int(scan.rawValue)] = Input._PRESS
+	}
+
+	internal func releaseEvent(scan: SDL_Scancode)
+	{
+		_keys[Int(scan.rawValue)] = Input._RELEASE
+	}
+
+	public func keyDown(_ key: Key) -> Bool
+	{
+		//SDL_GetKeyboardState(nil).withMemoryRebound(to: UInt8.self, capacity: Int(SDL_NUM_SCANCODES.rawValue))
+		//{ state in
+		//	state[Int(key.sdlScancode.rawValue)] != 0
+		//}
+		_keys[Int(key.sdlScancode.rawValue)] & Input._DOWN == Input._DOWN
+	}
+
+	public func keyPressed(_ key: Key) -> Bool
+	{
+		_keys[Int(key.sdlScancode.rawValue)] == Input._PRESS
+	}
+
+	public func keyReleased(_ key: Key) -> Bool
+	{
+		_keys[Int(key.sdlKeycode.rawValue)] == Input._RELEASE
+	}
+}
+
+public enum Key
+{
+	case 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
+	case right, left, down, up
+}
+
+extension Key
+{
+	internal var sdlKeycode: SDL_KeyCode
+	{
+		switch self
+		{
+		case .a: SDLK_a
+		case .b: SDLK_a
+		case .c: SDLK_a
+		case .d: SDLK_a
+		case .e: SDLK_a
+		case .f: SDLK_a
+		case .g: SDLK_a
+		case .h: SDLK_a
+		case .i: SDLK_a
+		case .j: SDLK_a
+		case .k: SDLK_a
+		case .l: SDLK_a
+		case .m: SDLK_a
+		case .n: SDLK_a
+		case .o: SDLK_a
+		case .p: SDLK_a
+		case .q: SDLK_a
+		case .r: SDLK_a
+		case .s: SDLK_a
+		case .t: SDLK_a
+		case .u: SDLK_a
+		case .v: SDLK_a
+		case .w: SDLK_a
+		case .x: SDLK_a
+		case .y: SDLK_a
+		case .z: SDLK_a
+		case .left:  SDLK_LEFT
+		case .right: SDLK_RIGHT
+		case .up:    SDLK_UP
+		case .down:  SDLK_DOWN
+		}
+	}
+
+	internal var sdlScancode: SDL_Scancode
+	{
+		switch self
+		{
+		case .a:     SDL_SCANCODE_A
+		case .b:     SDL_SCANCODE_B
+		case .c:     SDL_SCANCODE_C
+		case .d:     SDL_SCANCODE_D
+		case .e:     SDL_SCANCODE_E
+		case .f:     SDL_SCANCODE_F
+		case .g:     SDL_SCANCODE_G
+		case .h:     SDL_SCANCODE_H
+		case .i:     SDL_SCANCODE_I
+		case .j:     SDL_SCANCODE_J
+		case .k:     SDL_SCANCODE_K
+		case .l:     SDL_SCANCODE_L
+		case .m:     SDL_SCANCODE_M
+		case .n:     SDL_SCANCODE_N
+		case .o:     SDL_SCANCODE_O
+		case .p:     SDL_SCANCODE_P
+		case .q:     SDL_SCANCODE_Q
+		case .r:     SDL_SCANCODE_R
+		case .s:     SDL_SCANCODE_S
+		case .t:     SDL_SCANCODE_T
+		case .u:     SDL_SCANCODE_U
+		case .v:     SDL_SCANCODE_V
+		case .w:     SDL_SCANCODE_W
+		case .x:     SDL_SCANCODE_X
+		case .y:     SDL_SCANCODE_Y
+		case .z:     SDL_SCANCODE_Z
+		case .left:  SDL_SCANCODE_LEFT
+		case .right: SDL_SCANCODE_RIGHT
+		case .up:    SDL_SCANCODE_UP
+		case .down:  SDL_SCANCODE_DOWN
+		}
+	}
+}
+
+extension SDL_KeyCode
+{
+	internal init(scancode: SDL_Scancode)
+	{
+		self.init(scancode.rawValue | UInt32(SDLK_SCANCODE_MASK))
+	}
+}