From 5d185aa48016ddb9deca64ad93d6275f393fec30 Mon Sep 17 00:00:00 2001
From: "Valeriano A.R" <valen.alfonso@gmail.com>
Date: Sun, 2 May 2021 05:01:43 +0200
Subject: [PATCH] New method Input_GetKeyDir, to get direction with only the
 keys.

---
 src/Input.c | 37 +++++++++++++++++++++++++++++++++----
 src/Input.h |  8 +++++++-
 2 files changed, 40 insertions(+), 5 deletions(-)

diff --git a/src/Input.c b/src/Input.c
index 499d9a4..2ce4179 100644
--- a/src/Input.c
+++ b/src/Input.c
@@ -113,9 +113,7 @@ void Input_SetPointerDown(int pointerDown) {
 /////////////////////////////
 // Input_GetPointerDown
 //
-int Input_GetPointerDown(){
-	return _pointerDown;
-}
+int Input_GetPointerDown() { return _pointerDown; }
 
 /////////////////////////////
 // Input_GetPointerPosition
@@ -152,7 +150,7 @@ int Input_AnyKey() {
 /////////////////////////////
 // Input_GetDir
 //
-// Reports the direction of the dpad.
+// Reports the direction of the dpad and mouse.
 int Input_GetDir(vec2 dir) {
 	float vlen;
 	Uint8 buttons;
@@ -193,3 +191,34 @@ int Input_GetDir(vec2 dir) {
 		}
 	}
 }
+
+/////////////////////////////
+// Input_GetKeyDir
+//
+// Reports the direction of the dpad.
+int Input_GetKeyDir(vec2 dir) {
+	float vlen;
+
+	// Use the keyboard
+	vec2_set(dir, 0.0f, 0.0f);
+	if (Input_GetKey(InputKey_Up)) {
+		dir[1] -= 1.0f;
+	}
+	if (Input_GetKey(InputKey_Down)) {
+		dir[1] += 1.0f;
+	}
+	if (Input_GetKey(InputKey_Left)) {
+		dir[0] -= 1.0f;
+	}
+	if (Input_GetKey(InputKey_Right)) {
+		dir[0] += 1.0f;
+	}
+	vlen = vec2_dot(dir, dir);
+	if (vlen > 0.0f) {
+		vlen = sqrtf(vlen);
+		vec2_scale(dir, dir, 1.0f / vlen);
+		return (1);
+	} else {
+		return (0);
+	}
+}
diff --git a/src/Input.h b/src/Input.h
index 31d5f55..f6414fa 100644
--- a/src/Input.h
+++ b/src/Input.h
@@ -99,7 +99,13 @@ int Input_AnyKey();
 /////////////////////////////
 // Input_GetDir
 //
-// Reports the direction of the dpad.
+// Reports the direction of the dpad and mouse.
 int Input_GetDir(vec2 dir);
 
+/////////////////////////////
+// Input_GetKeyDir
+//
+// Reports the direction of the dpad.
+int Input_GetKeyDir(vec2 dir);
+
 #endif