Overworld render test.

src/input/input.c

@@ -108,6 +108,13 @@ bool_t inputReleased(const inputaction_t action) {
   return !inputIsDown(action) && inputWasDown(action);
 }
 
+float_t inputAxis(const inputaction_t neg, const inputaction_t pos) {
+  assertTrue(neg < INPUT_ACTION_COUNT, "Negative input action out of bounds");
+  assertTrue(pos < INPUT_ACTION_COUNT, "Positive input action out of bounds");
+
+  return inputGetCurrentValue(pos) - inputGetCurrentValue(neg);
+}
+
 void inputBind(const inputbutton_t button, const char_t *action) {
   assertNotNull(action, "Input action is null");
   assertStrLenMin(action, 1, "Input action is empty");

src/input/input.h

@@ -80,6 +80,16 @@ bool_t inputPressed(const inputaction_t action);
  */
 bool_t inputReleased(const inputaction_t action);
 
+/**
+ * Gets the value of an input axis, defined by two actions (negative and
+ * positive).
+ * 
+ * @param neg The action representing the negative direction of the axis.
+ * @param pos The action representing the positive direction of the axis.
+ * @return The current value of the axis (-1.0f to 1.0f).
+ */
+float_t inputAxis(const inputaction_t neg, const inputaction_t pos);
+
 /**
  * Binds an input button to an action. Will first check if a matching action
  * exists, otherwise it will be treated as a command.
@@ -87,4 +97,4 @@ bool_t inputReleased(const inputaction_t action);
  * @param button The input button to bind.
  * @param action The name of the input action or command to bind the button to.
  */
-void inputBind(const inputbutton_t data, const char_t *action);
+void inputBind(const inputbutton_t data, const char_t *action);