Controller and Rumble stuff.

3 files changed, 89 insertions, 0 deletions

diff --git a/src/controller.c b/src/controller.c
new file mode 100644
index 0000000..cacada3
--- /dev/null
+++ b/src/controller.c
@@ -0,0 +1,37 @@
+#include "controller.h"
+
+#include <raylib.h>
+
+b32 is_button_pressed(i32 btn)
+{
+	return IsKeyPressed(btn);
+}
+
+b32 is_button_held(i32 btn)
+{
+	return IsKeyDown(btn);
+}
+
+b32 is_button_released(i32 btn)
+{
+	return IsKeyReleased(btn);
+}
+
+vec2 get_dir_input(void)
+{
+	fx32 cont_x = (fx32)(FIXED_POINT_ONE * GetGamepadAxisMovement(0, 0));
+	fx32 cont_y = (fx32)(FIXED_POINT_ONE * GetGamepadAxisMovement(0, 1));
+	
+	fx32 key_w = is_button_held(KEY_W) ? FIXED_POINT_ONE : 0;
+	fx32 key_s = is_button_held(KEY_S) ? FIXED_POINT_ONE : 0;
+	fx32 key_a = is_button_held(KEY_A) ? FIXED_POINT_ONE : 0;
+	fx32 key_d = is_button_held(KEY_D) ? FIXED_POINT_ONE : 0;
+	
+	// Either Gamepad or Keyboard control, not both!
+	if(key_w != 0 || key_s != 0 || key_a != 0 || key_d != 0){
+		cont_x = key_d - key_a;
+		cont_y = key_s - key_w;
+	}
+	
+	return (vec2){cont_x, cont_y};
+}
diff --git a/src/controller.h b/src/controller.h
index 0d474a7..30c73d1 100644
--- a/src/controller.h
+++ b/src/controller.h
@@ -8,5 +8,7 @@ b32 is_button_released(i32 btn);
 
 vec2 get_dir_input(void);
 
+// This portion is implemented in rumble.c! //
 void set_rumble(f32 duration, f32 strength);
+void poll_rumble(f32 dt);
 void stop_rumble(void);
diff --git a/src/rumble.c b/src/rumble.c
new file mode 100644
index 0000000..2313d68
--- /dev/null
+++ b/src/rumble.c
@@ -0,0 +1,50 @@
+/*
+I made this a separate source file because Raylib has some quirks
+regarding Windows compilation. And I also suppose because it has
+some state of its own.
+*/
+
+#include "controller.h"
+
+// Windows stuff starts //
+typedef struct _XINPUT_VIBRATION {
+    unsigned wLeftMotorSpeed;
+    unsigned wRightMotorSpeed;
+} XINPUT_VIBRATION;
+unsigned int XInputSetState(unsigned int dwUserIndex, XINPUT_VIBRATION *pVibration);
+// Windows stuff ends //
+
+static fx32 timer = 0;
+
+void set_rumble(f32 duration, f32 strength)
+{
+	XINPUT_VIBRATION state = {};
+    state.wLeftMotorSpeed  = (unsigned)(strength * 65535.0f);
+    state.wRightMotorSpeed = (unsigned)(strength * 65535.0f);
+
+    if (XInputSetState(0, &state) == 0){
+        timer = FIXED_POINT_ONE * duration;
+    }
+}
+
+void poll_rumble(f32 dt)
+{
+	if(timer <= 0)
+		return;
+		
+	fx32 delta = FIXED_POINT_ONE * dt;
+	
+	timer -= delta;
+	if(timer <= 0){
+		stop_rumble();
+	}
+}
+
+void stop_rumble(void)
+{
+	timer = 0;
+	
+	XINPUT_VIBRATION state = {};
+    state.wLeftMotorSpeed  = 0;
+    state.wRightMotorSpeed = 0;
+}
\ No newline at end of file