input prog

src/dusksdl2/input/inputsdl2.c

@@ -0,0 +1,59 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "input/input.h"
+
+float_t inputButtonGetValue(const inputbutton_t button) {
+  switch(button.type) {
+    #ifdef DUSK_INPUT_KEYBOARD
+      case INPUT_BUTTON_TYPE_KEYBOARD: {
+        return INPUT.keyboardState[button.scancode] ? 1.0f : 0.0f;
+      }
+    #endif
+
+    #ifdef DUSK_INPUT_POINTER
+      case INPUT_BUTTON_TYPE_POINTER: {
+        switch(button.pointerAxis) {
+          case INPUT_POINTER_AXIS_X:
+            return INPUT.mouseX;
+
+          case INPUT_POINTER_AXIS_Y:
+            return INPUT.mouseY;
+
+          default:
+            assertUnreachable("Unknown pointer axis");
+            return 0.0f;
+        }
+      }
+    #endif
+
+    #ifdef DUSK_INPUT_GAMEPAD
+      case INPUT_BUTTON_TYPE_GAMEPAD: {
+        if(SDL_GameControllerGetButton(INPUT.controller, button.gpButton)) {
+          return 1.0f;
+        }
+        return 0.0f;
+      }
+
+      case INPUT_BUTTON_TYPE_GAMEPAD_AXIS: {
+        float_t value = 0.0f;
+
+        Sint16 axis = SDL_GameControllerGetAxis(INPUT.controller, button.gpAxis.axis);
+        value = (float_t)axis / 32767.0f;
+
+        if(!button.gpAxis.positive) value = -value;
+        if(value >= INPUT.deadzone) return value;
+        return 0.0f;
+      }
+    #endif
+
+    default: {
+      assertUnreachable("Unknown input button type");
+      return 0.0f;
+    }
+  }
+}