Use buttons.pressed/released for examples

examples/profiler-test/profiler-test.cpp

diff --git a/examples/profiler-test/profiler-test.cpp b/examples/profiler-test/profiler-test.cpp
index 93af4e3..66df80e 100644
--- a/examples/profiler-test/profiler-test.cpp
+++ b/examples/profiler-test/profiler-test.cpp
@@ -83,24 +83,21 @@
 void render(uint32_t time)
 {
 	static Point    ptMiddle(SCREEN_WIDTH/2, SCREEN_HEIGHT/2);
-	static uint32_t lastButtons = 0;
 
 	//static ProfilerProbe *pAwayRenderProbe = g_profiler.AddProbe("AwayFromRender");
 
 
 	//pAwayRenderProbe->StoreElapsedUs(true);
 
-	uint32_t changedButtons = buttons ^ lastButtons;
-
-	bool button_a = buttons & changedButtons & Button::A;
-	bool button_b = buttons & changedButtons & Button::B;
-	bool button_x = buttons & changedButtons & Button::X;
-	bool button_y = buttons & changedButtons & Button::Y;
-	bool button_up = buttons & changedButtons & Button::DPAD_UP;
-	bool button_down = buttons & changedButtons & Button::DPAD_DOWN;
-	bool button_left = buttons & changedButtons & Button::DPAD_LEFT;
-	bool button_right = buttons & changedButtons & Button::DPAD_RIGHT;
-	bool button_home = buttons & changedButtons & Button::HOME;
+	bool button_a = buttons.pressed & Button::A;
+	bool button_b = buttons.pressed & Button::B;
+	bool button_x = buttons.pressed & Button::X;
+	bool button_y = buttons.pressed & Button::Y;
+	bool button_up = buttons.pressed & Button::DPAD_UP;
+	bool button_down = buttons.pressed & Button::DPAD_DOWN;
+	bool button_left = buttons.pressed & Button::DPAD_LEFT;
+	bool button_right = buttons.pressed & Button::DPAD_RIGHT;
+	bool button_home = buttons.pressed & Button::HOME;
 
 	if(button_up && (g_uRows>1))
 	{
@@ -158,8 +155,6 @@
 		g_profiler.log_probes();
 	}
 
-	lastButtons = buttons;
-
 	g_pRenderProbe->start();
 
 	// clear screen

examples/scrolly-tile/scrolly-tile.cpp

diff --git a/examples/scrolly-tile/scrolly-tile.cpp b/examples/scrolly-tile/scrolly-tile.cpp
index 1a08302..4fedac6 100644
--- a/examples/scrolly-tile/scrolly-tile.cpp
+++ b/examples/scrolly-tile/scrolly-tile.cpp
@@ -492,11 +492,6 @@
 }

 

 void update(uint32_t time_ms) {

-    static uint16_t last_buttons = 0;

-    uint16_t changed = buttons ^ last_buttons;

-    uint16_t pressed = changed & buttons;

-    uint16_t released = changed & ~buttons;

-

     int32_t water_dist = player_position.y - (SCREEN_H - water_level);

     if (water_dist < 0) {

         water_dist = 0;

@@ -506,38 +501,36 @@
 #endif

 

     if (game_state == enum_state::menu) {

-        if(pressed & Button::B) {

+        if(buttons.pressed & Button::B) {

             new_game();

         }

-        else if(pressed & Button::DPAD_UP) {

+        else if(buttons.pressed & Button::DPAD_UP) {

             current_random_source = RANDOM_TYPE_PRNG;

             new_level();

         }

-        else if(pressed & Button::DPAD_DOWN) {

+        else if(buttons.pressed & Button::DPAD_DOWN) {

             current_random_source = RANDOM_TYPE_HRNG;

             new_level();

         }

-        else if(pressed & Button::DPAD_RIGHT) {

+        else if(buttons.pressed & Button::DPAD_RIGHT) {

             if(current_random_source == RANDOM_TYPE_PRNG) {

                 current_random_seed++;

                 new_level();

             }

         }

-        else if(pressed & Button::DPAD_LEFT) {

+        else if(buttons.pressed & Button::DPAD_LEFT) {

             if(current_random_source == RANDOM_TYPE_PRNG) {

                 current_random_seed--;

                 new_level();

             }

         }

-        last_buttons = buttons;

         return;

     }

 

     if(game_state == enum_state::dead){

-        if(pressed & Button::B) {

+        if(buttons.pressed & Button::B) {

             game_state = enum_state::menu;

         }

-        last_buttons = buttons;

         return;

     }

 

@@ -583,7 +576,7 @@
         }

 

         if(player_jump_count){

-            if(pressed & Button::A) {

+            if(buttons.pressed & Button::A) {

                 if(player_state == wall_left

                 || player_state == wall_right

                 || player_state == near_wall_left

@@ -668,8 +661,6 @@
         }

         for_each_tile(collide_player_ud, (void *)&tile_offset);

     }

-

-    last_buttons = buttons;

 }

 

 void render_summary() {

examples/text/text.cpp

diff --git a/examples/text/text.cpp b/examples/text/text.cpp
index 7771895..80dfc33 100644
--- a/examples/text/text.cpp
+++ b/examples/text/text.cpp
@@ -3,7 +3,6 @@
 using namespace blit;
 
 bool variable_width = true;
-uint32_t prev_buttons = buttons;
 TextAlign alignment = TextAlign::top_left;
 
 std::string alignment_to_string(TextAlign alignment) {
@@ -77,7 +76,7 @@
 }
 
 void update(uint32_t time) {
-    if ((prev_buttons & Button::A) && !(buttons & Button::A))
+    if (buttons.released & Button::A)
         variable_width = !variable_width;
 
     alignment = TextAlign::top_left;
@@ -95,6 +94,4 @@
 	else if (!(buttons & Button::DPAD_LEFT)) {
 		alignment = (TextAlign)(alignment | TextAlign::center_h);
 	}
-
-    prev_buttons = buttons;
 }

examples/voxel/voxel.cpp

diff --git a/examples/voxel/voxel.cpp b/examples/voxel/voxel.cpp
index 5464c73..ced7c47 100644
--- a/examples/voxel/voxel.cpp
+++ b/examples/voxel/voxel.cpp
@@ -233,7 +233,6 @@
 
 void update(uint32_t time_ms) {
   static uint16_t tick = 0;
-  static uint32_t last_buttons = 0;
   
   tick++;
 
@@ -283,13 +282,11 @@
     }
   }
 
-  if(!(buttons & A) && (last_buttons & A)) {
+  if(buttons.released & A) {
     terrain_index++;
     if(terrain_index > 4) {
       terrain_index = 1;
     }
     load_map();
   }
-
-  last_buttons = buttons;
 }
\ No newline at end of file