1 files changed, 87 insertions, 0 deletions
diff --git a/shared-module/_pew/__init__.c b/shared-module/_pew/__init__.c
new file mode 100644
index 000000000..f3b23c606
--- /dev/null
+++ b/shared-module/_pew/__init__.c
@@ -0,0 +1,87 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Radomir Dopieralski
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdbool.h>
+
+#include "py/mpstate.h"
+#include "__init__.h"
+#include "PewPew.h"
+
+#include "shared-bindings/digitalio/DigitalInOut.h"
+
+
+void pew_tick(void) {
+    static uint8_t col = 0;
+    static uint8_t turn = 0;
+    static uint8_t pressed = 0;
+    static uint8_t last_pressed = 0;
+    digitalio_digitalinout_obj_t *pin;
+
+    pew_obj_t* pew = MP_STATE_VM(pew_singleton);
+    if (!pew) { return; }
+
+    pin = MP_OBJ_TO_PTR(pew->cols[col]);
+    ++col;
+    if (col >= pew->cols_size) {
+        pew->pressed |= last_pressed & pressed;
+        last_pressed = pressed;
+        pressed = 0;
+        col = 0;
+        ++turn;
+        if (turn > 11) {
+            turn = 0;
+        }
+    }
+    if (!common_hal_digitalio_digitalinout_get_value(pew->buttons)) {
+        pressed |= 1 << col;
+    }
+    common_hal_digitalio_digitalinout_set_value(pin, true);
+    for (size_t x = 0; x < pew->rows_size; ++x) {
+        pin = MP_OBJ_TO_PTR(pew->rows[x]);
+        uint8_t color = pew->buffer[col * (pew->rows_size) + x];
+        bool value = false;
+        switch (color & 0x03) {
+            case 3:
+                value = true;
+                break;
+            case 2:
+                if (turn == 2 || turn == 5 || turn == 8 || turn == 11) {
+                        value = true;
+                }
+                break;
+            case 1:
+                if (turn == 0) {
+                    value = true;
+                }
+                break;
+            case 0:
+                break;
+        }
+        common_hal_digitalio_digitalinout_set_value(pin, value);
+    }
+    pin = MP_OBJ_TO_PTR(pew->cols[col]);
+    common_hal_digitalio_digitalinout_set_value(pin, false);
+}