Diff: main.cpp

Revision:

0:7f9842ec56b9

diff -r 000000000000 -r 7f9842ec56b9 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun May 01 17:26:59 2011 +0000
@@ -0,0 +1,136 @@
+#include "mbed.h"
+#include "7SegSRDriver.h"
+
+/* mbed Simple 'Roulette' Game
+ * Making use of 7-Segment Display Driver Library (via an 8bit Shift Register)
+ * Copyright (c) 2011 Paul Law
+ *
+ * User chooses a number between 1 and 9 by pressing button A repeatedly
+ * - Selection is shown on second 7seg display
+ * User then presses button B to begin the game
+ * - Number between 1 and 9 is chosen at random
+ * - First display shows 'suspense' animation then shows number
+ * - If the numbers match the 2 displays flash and the blue leds flash
+ * - If the numbers don't match the 1st display flashes only
+ * - Another round of the game starts, ad infinitum
+ * 
+ * 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.
+ */
+
+// Pin outs
+// p17 - Play button +ve
+// p18 - Select button +ve
+// p22 - 1st Display Shift Register - Clock
+// p23 - 1st Display Shift Register - Latch
+// p24 - 1st Display Shift Register - Data
+// p25 - 2nd Display Shift Register - Clock
+// p26 - 2nd Display Shift Register - Latch
+// p27 - 2nd Display Shift Register - Data
+DigitalIn playButton(p17);
+DigitalIn selectButton(p18);
+SSegSRDriver lDisplay(p23,p21,p22, SSegSRDriver_COMN_ANODE);
+SSegSRDriver rDisplay(p27,p25,p26, SSegSRDriver_COMN_ANODE);
+DigitalOut leds[] = { (LED1),(LED2),(LED3),(LED4) };
+
+// Display Roll Definitions (first element in array is number of items, followed by items
+#define ROLL_CWURC  0
+#define ROLL_CCWLC  1
+#define ROLL_CCWLRC 2
+#define ROLL_CWUC   3
+#define ROLL_FIG8   4
+#define ROLL_CWO    5
+unsigned char rollDefs[6][9] = {
+    // A clockwise upper reverse C - abg
+    {3,2,4,128},
+    // An anticlockwise lower C - ged
+    {3,128,32,16},
+    // An anticlockwise lower reverse C - dcg
+    {3,16,8,128},
+    // A clockwise upper C - gfa
+    {3,128,64,2},
+    // A figure of 8 roll - abgedcgf
+    {8,2,4,128,32,16,8,128,64},
+    // A clockwise O roll - abcdef
+    {6,2,4,8,16,32,64}
+};
+
+// Performs a single roll animation on the given display
+void rollDisplay(SSegSRDriver *display, unsigned char rollType, unsigned char repeats) {
+    for (int r=0; r<repeats; r++) {
+        for (int i=1; i<=rollDefs[rollType][0]; i++) {
+            display->write_raw(rollDefs[rollType][i]);
+            wait_ms(75);
+        }
+    }
+    display->clear();
+}
+
+int main() {
+
+    unsigned char guess;
+
+    while (1) {
+
+        lDisplay.clear();
+        rDisplay.clear();
+
+        // New game animation (figure of 8 across two displays)
+        rollDisplay(&rDisplay,ROLL_CWURC,1);
+        rollDisplay(&lDisplay,ROLL_CCWLC,1);
+        rollDisplay(&rDisplay,ROLL_CCWLRC,1);
+        rollDisplay(&lDisplay,ROLL_CWUC,1);
+
+        // User selects guess
+        guess = 1;
+        rDisplay.write(guess);
+        while (!playButton) {
+            if (selectButton) {
+                guess++;
+                if (guess==10) guess=1;
+                rDisplay.write(guess);
+                while (selectButton) {
+                    wait(0.25);
+                }
+            }
+            wait(0.25);
+        }
+
+        // Choose random number and animate 'suspense'
+        int target = (rand() % 9)+1;
+        rollDisplay(&lDisplay,ROLL_CWO,2);
+
+        // Show number and flash (both and leds if win, just target if lost)
+        for (int i=0; i<5; i++) {
+            lDisplay.clear();
+            if (target == guess) {
+                rDisplay.clear();
+                leds[0] = leds[1] = leds[2] = leds[3] = 1;
+            }
+            wait_ms(250);
+            lDisplay.write(target);
+            if (target == guess) {
+                rDisplay.write(guess);
+                leds[0] = leds[1] = leds[2] = leds[3] = 0;
+            }
+            wait_ms(250);
+        }
+
+        // End of this game round
+    }
+}