Changed IsKeyPressed('R') to IsKeyPressed(KEY_R) for Physics examples! (#1666)

examples/physics/physics_demo.c

@@ -51,7 +51,7 @@ int main(void)
         //----------------------------------------------------------------------------------
         UpdatePhysics();            // Update physics system
 
-        if (IsKeyPressed('R'))      // Reset physics system
+        if (IsKeyPressed(KEY_R))    // Reset physics system
         {
             ResetPhysics();
             

examples/physics/physics_friction.c

@@ -70,7 +70,7 @@ int main(void)
         //----------------------------------------------------------------------------------
         UpdatePhysics();            // Update physics system
 
-        if (IsKeyPressed('R'))      // Reset physics system
+        if (IsKeyPressed(KEY_R))    // Reset physics system
         {
             // Reset dynamic physics bodies position, velocity and rotation
             bodyA->position = (Vector2){ 35, screenHeight*0.6f };

examples/physics/physics_movement.c

@@ -61,9 +61,9 @@ int main(void)
     {
         // Update
         //----------------------------------------------------------------------------------
-        UpdatePhysics();            // Update physics system
+        UpdatePhysics();              // Update physics system
 
-        if (IsKeyPressed('R'))      // Reset physics input
+        if (IsKeyPressed(KEY_R))      // Reset physics input
         {
             // Reset movement physics body position, velocity and rotation
             body->position = (Vector2){ screenWidth/2, screenHeight/2 };

examples/physics/physics_restitution.c

@@ -59,7 +59,7 @@ int main(void)
         //----------------------------------------------------------------------------------
         UpdatePhysics();            // Update physics system
 
-        if (IsKeyPressed('R'))      // Reset physics input
+        if (IsKeyPressed(KEY_R))    // Reset physics input
         {
             // Reset circles physics bodies position and velocity
             circleA->position = (Vector2){ screenWidth*0.25f, screenHeight/2 };

examples/physics/physics_shatter.c

@@ -46,7 +46,7 @@ int main(void)
         //----------------------------------------------------------------------------------
         UpdatePhysics();            // Update physics system
         
-        if (IsKeyPressed('R'))      // Reset physics input
+        if (IsKeyPressed(KEY_R))    // Reset physics input
         {
             ResetPhysics();