commit ef8efbb66c24fc07fbb3e71acfb8f209b6de1f9c
parent 758737b73ce2b9892aa0671ef2fc8ddbeb80d6b5
Author: Connor Thomson <connor@gnufault.org>
Date:   Sun, 18 Oct 2026 20:25:02 -0700

Add N64 joypad support and make the selected menu item pulse yellow

Diffstat:
M
include/ta_button.h
 | 
1
+
M
platforms/n64/n64.c
 | 
38
++++++++++++++++++++++++++++++++++++++
M
src/ta_button.c
 | 
21
++++++++++++++-------

3 files changed, 53 insertions(+), 7 deletions(-)
diff --git a/include/ta_button.h b/include/ta_button.h
@@ -16,6 +16,7 @@ typedef struct {
     ta_size selected;
     ta_size animation_from;
     ta_uint32 animation_frame;
+    ta_uint32 pulse_frame;
     ta_bool animation_active;
     ta_bool up_was_down;
     ta_bool down_was_down;
diff --git a/platforms/n64/n64.c b/platforms/n64/n64.c
@@ -1,5 +1,6 @@
 #include "ta_api.h"
 #include <display.h>
+#include <joypad.h>
 #include <surface.h>
 #include <stdlib.h>
 #include <stdint.h>
@@ -8,8 +9,43 @@
 #define SCREEN_HEIGHT 240
 #define WINDOW_BPP    32
 
+static void update_controller_input(void) {
+    joypad_buttons_t buttons = joypad_get_buttons(JOYPAD_PORT_1);
+
+    if (buttons.d_up) {
+        ta_keyboard_key_down(KEY_UP);
+    } else {
+        ta_keyboard_key_up(KEY_UP);
+    }
+
+    if (buttons.d_down) {
+        ta_keyboard_key_down(KEY_DOWN);
+    } else {
+        ta_keyboard_key_up(KEY_DOWN);
+    }
+
+    if (buttons.d_left) {
+        ta_keyboard_key_down(KEY_LEFT);
+    } else {
+        ta_keyboard_key_up(KEY_LEFT);
+    }
+
+    if (buttons.d_right) {
+        ta_keyboard_key_down(KEY_RIGHT);
+    } else {
+        ta_keyboard_key_up(KEY_RIGHT);
+    }
+
+    if (buttons.a || buttons.start) {
+        ta_keyboard_key_down(KEY_ENTER);
+    } else {
+        ta_keyboard_key_up(KEY_ENTER);
+    }
+}
+
 int main(void) {
     display_init(RESOLUTION_320x240, DEPTH_32_BPP, 2, GAMMA_NONE, FILTERS_RESAMPLE);
+    joypad_init();
 
     ta_fb.width  = SCREEN_WIDTH;
     ta_fb.height = SCREEN_HEIGHT;
@@ -19,6 +55,8 @@ int main(void) {
 
     while (1) {
         surface_t *display = display_get();
+        joypad_poll();
+        update_controller_input();
         ta_main_update();
 
         const ta_uint32 *source = (const ta_uint32 *)ta_fb.buffers[0];
diff --git a/src/ta_button.c b/src/ta_button.c
@@ -7,6 +7,8 @@
 #define TA_BUTTON_SPACING          48
 #define TA_BUTTON_COLOR_IDLE       118
 #define TA_BUTTON_COLOR_SELECTED   255
+#define TA_BUTTON_COLOR_PULSE_BLUE_MIN 96
+#define TA_BUTTON_PULSE_HALF_FRAMES 24
 
 void ta_button_lists_init(ta_button_lists *list) {
     if (list == 0) {
@@ -18,6 +20,7 @@ void ta_button_lists_init(ta_button_lists *list) {
     list->selected         = 0;
     list->animation_from   = 0;
     list->animation_frame  = 0;
+    list->pulse_frame      = 0;
     list->animation_active = ta_false;
     list->up_was_down      = ta_false;
     list->down_was_down    = ta_false;
@@ -52,12 +55,12 @@ ta_bool ta_button_lists_add(ta_button_lists *list, const char *label, ta_button_
 }
 
 ta_bool ta_button_lists_update(ta_button_lists *list) {
-    ta_bool moved = ta_false;
-
     if (list == 0 || list->size == 0) {
         return ta_false;
     }
 
+    list->pulse_frame = (list->pulse_frame + 1) % (TA_BUTTON_PULSE_HALF_FRAMES * 2);
+
     ta_bool up_down       = ta_keyboard_is_down(KEY_UP);
     ta_bool down_down     = ta_keyboard_is_down(KEY_DOWN);
     ta_bool enter_down    = ta_keyboard_is_down(KEY_ENTER);
@@ -95,7 +98,6 @@ ta_bool ta_button_lists_update(ta_button_lists *list) {
         if (list->selected != list->animation_from) {
             list->animation_frame  = 0;
             list->animation_active = ta_true;
-            moved                  = ta_true;
         }
     }
 
@@ -103,7 +105,7 @@ ta_bool ta_button_lists_update(ta_button_lists *list) {
         list->buttons[list->selected].callback();
     }
 
-    return moved;
+    return ta_true;
 }
 
 void ta_button_lists_draw(const ta_button_lists *list) {
@@ -152,10 +154,15 @@ void ta_button_lists_draw(const ta_button_lists *list) {
             selection += progress;
         }
 
-        ta_uint8 color = (ta_uint8)(TA_BUTTON_COLOR_IDLE + (TA_BUTTON_COLOR_SELECTED - TA_BUTTON_COLOR_IDLE) * selection + 0.5);
-        ta_uint32 x    = (ta_uint32)(ta_fb.width - text_width) / 2;
+        ta_uint32 pulse_position = list->pulse_frame;
+        ta_uint32 pulse_distance = pulse_position <= TA_BUTTON_PULSE_HALF_FRAMES ? pulse_position : TA_BUTTON_PULSE_HALF_FRAMES * 2 - pulse_position;
+        ta_uint8 pulse_blue      = (ta_uint8)(TA_BUTTON_COLOR_SELECTED - ((TA_BUTTON_COLOR_SELECTED - TA_BUTTON_COLOR_PULSE_BLUE_MIN) * pulse_distance / TA_BUTTON_PULSE_HALF_FRAMES));
+        ta_uint8 red             = (ta_uint8)(TA_BUTTON_COLOR_IDLE + (TA_BUTTON_COLOR_SELECTED - TA_BUTTON_COLOR_IDLE) * selection + 0.5);
+        ta_uint8 green           = red;
+        ta_uint8 blue            = (ta_uint8)(TA_BUTTON_COLOR_IDLE + (pulse_blue - TA_BUTTON_COLOR_IDLE) * selection + 0.5);
+        ta_uint32 x              = (ta_uint32)(ta_fb.width - text_width) / 2;
 
-        ta_text_draw_outline(list->buttons[i].label, x, (ta_uint32)y, text_width, text_height, color, color, color, 1, 0, 0, 0);
+        ta_text_draw_outline(list->buttons[i].label, x, (ta_uint32)y, text_width, text_height, red, green, blue, 1, 0, 0, 0);
     }
 }