Mercurial > hg > ascension / changeset

--- a/test/snake/snake.c	Sun Jul 13 15:09:04 2025 +0200
+++ b/test/snake/snake.c	Sun Jul 13 17:17:15 2025 +0200
@@ -115,7 +115,41 @@
     asc_ui_add_node(node);
 }
 
-static AscSceneNode *create_spaceship(void) {
+enum MoveDirection {
+    MOVE_UP,
+    MOVE_LEFT,
+    MOVE_DOWN,
+    MOVE_RIGHT
+};
+
+static asc_transform rotations[4];
+static asc_vec2f directions[4];
+
+typedef struct {
+    AscSceneNode *sprite;
+    enum MoveDirection direction;
+} Spaceship;
+
+static void turn_left(Spaceship *spaceship) {
+    spaceship->direction = (spaceship->direction + 1) % 4;
+    asc_node_set_rotation(spaceship->sprite, rotations[spaceship->direction]);
+}
+
+static void turn_right(Spaceship *spaceship) {
+    spaceship->direction = (spaceship->direction + 3) % 4;
+    asc_node_set_rotation(spaceship->sprite, rotations[spaceship->direction]);
+}
+
+static Spaceship *create_spaceship(void) {
+    // TODO: this all belongs somewhere else, this is just quickly hacked into here for testing
+    asc_transform_identity(rotations[MOVE_UP]);
+    asc_transform_roll(rotations[MOVE_LEFT], asc_rad(-90));
+    asc_transform_roll(rotations[MOVE_RIGHT], asc_rad(90));
+    asc_transform_roll(rotations[MOVE_DOWN], asc_rad(180));
+    directions[MOVE_UP] = ASC_VEC2F(0, -1);
+    directions[MOVE_LEFT] = ASC_VEC2F(-1, 0);
+    directions[MOVE_DOWN] = ASC_VEC2F(0, 1);
+    directions[MOVE_RIGHT] = ASC_VEC2F(1, 0);
     AscSceneNode *sprite = asc_sprite(
         .name = "Player",
         .texture = TEXTURE_SHIP,
@@ -127,7 +161,10 @@
         .origin_y = 32,
     );
     asc_scene_add_node(MAIN_SCENE, sprite);
-    return sprite;
+    // TODO: this is never freed at the moment
+    Spaceship *ship = cxZallocDefault(sizeof(Spaceship));
+    ship->sprite = sprite;
+    return ship;
 }
 
 static asc_rect update_viewport_for_window_resize(asc_vec2u window_size) {
@@ -192,7 +229,7 @@
     create_score_counter();
 
     // create spaceship
-    AscSceneNode *spaceship = create_spaceship();
+    Spaceship *spaceship = create_spaceship();
 
     // Main Loop
     do {
@@ -207,8 +244,10 @@
 
         // player rotation
         if (asc_key_pressed(ASC_KEY(LEFT))) {
-            asc_node_roll_deg(spaceship, -90);
-            asc_node_update_transform(spaceship);
+            turn_left(spaceship);
+        }
+        if (asc_key_pressed(ASC_KEY(RIGHT))) {
+            turn_right(spaceship);
         }
 
         // debug-key for clearing the shader registry