Add a tetris keymap to clueboard that includes a tetris game

keyboards/clueboard/keymaps/tetris/tetris_text.h

@@ -0,0 +1,45 @@
+/* Copyright 2017 Dan Amlund Thomsen
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef TETRIS_TEXT_H
+#define TETRIS_TEXT_H
+
+//// to implement
+void tetris_send_up(void);
+void tetris_send_left(void);
+void tetris_send_down(void);
+void tetris_send_right(void);
+
+void tetris_send_backspace(void);
+void tetris_send_delete(void);
+
+void tetris_send_string(const char *s);
+
+void tetris_send_newline(void);
+
+// return = meaning
+// 0 = no keys pressed
+// 1 = up
+// 2 = left
+// 3 = down
+// 4 = right
+int tetris_get_keypress(void);
+
+//// to call
+void tetris_start(uint8_t seed);
+// returns 0 when game is over
+int tetris_tick(int ms_since_previous_tick);
+
+#endif