Tyler Weaver
Hangman game using qp a 16x2 LCD and joystick.
Revision 0:1521c946a57b, committed 2012-02-08
- Comitter:
- tylerjw
- Date:
- Wed Feb 08 22:20:11 2012 +0000
- Child:
- 1:4efaebc256d3
- Commit message:
- Problems with lib/qp, please help!
Player class hasn\t been developed yet.
BSP is still missing some features.
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TextLCD.lib Wed Feb 08 22:20:11 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/simon/code/TextLCD/#44f34c09bd37
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/bsp.cpp Wed Feb 08 22:20:11 2012 +0000
@@ -0,0 +1,137 @@
+#include "qp_port.h"
+#include "hangman.h"
+#include "bsp.h"
+#include "LPC17xx.h"
+#include "mbed.h"
+
+enum ISR_Priorities { // ISR priorities from highest urgency to lowest
+ BUTTON_PRIO,
+ SYSTICK_PRIO,
+};
+
+
+#define LED_PORT LPC_GPIO1
+#define LED1_BIT (1U << 18)
+#define LED2_BIT (1U << 20)
+#define LED3_BIT (1U << 21)
+#define LED4_BIT (1U << 23)
+
+//............................................................................
+extern "C" void SysTick_Handler(void) {
+ QK_ISR_ENTRY(); // inform the QK kernel of entering the ISR
+
+#ifdef Q_SPY
+ uint32_t volatile dummy = SysTick->CTRL; // clear the COUNTFLAG in SysTick
+ l_tickTime += l_tickPeriod; // account for the clock rollover
+#endif
+
+ QF::TICK(&l_SysTick_Handler); // process all armed time events
+
+ QK_ISR_EXIT(); // inform the QK kernel of exiting the ISR
+}
+
+//............................................................................
+void BSP_init(void) {
+ SystemInit(); // initialize the clocking system
+
+ // set LED port to output
+ LED_PORT->FIODIR |= (LED1_BIT | LED2_BIT | LED3_BIT | LED4_BIT);
+
+ // clear the LEDs
+ LED_PORT->FIOCLR = (LED1_BIT | LED2_BIT | LED3_BIT | LED4_BIT);
+
+ QS_OBJ_DICTIONARY(&l_SysTick_Handler);
+}
+
+//............................................................................
+void BSP_lcdScrollIn(char* line1, char* line2) {
+// scroller algorithm
+ lcd.cls();
+ char output1[17];
+ char output2[17];
+ for ( int i = 0; i < 17; i++) {
+ output1[i] = ' ';
+ output2[i] = ' ';
+ }
+ for (int i = 0; i < 17; i++) {
+ for (int col = 0; col < 17; col++) {
+
+ if (col >= i) {
+ output1[col] = ' ';
+ output2[col] = ' ';
+ } else {
+ output1[col] = (line1[col+(16-i)]);
+ output2[col] = (line2[col+(16-i)]);
+ }
+ lcd.locate(col,0);
+ lcd.putc(output1[col]);
+ lcd.locate(col,1);
+ lcd.putc(output2[col]);
+ }
+ wait(0.4);
+ }
+}
+
+//............................................................................
+void BSP_lcdUpdate(char* line1,char* line2) {
+ uint8_t length1 = strlen(line1);
+ uint8_t length2 = strlen(line2);
+ if (length1 > length2)
+ length1 = length2;
+ lcd.cls();
+ if (length1 < 17)
+ for (int col = 0; col < 17 && col < length1; col++) {
+ lcd.locate(col,0);
+ lcd.putc(*(line1+col));
+ lcd.locate(col,1);
+ lcd.putc(*(line2+col));
+ }
+ else
+ for (int col = 0; col < 17; col++) {
+ lcd.locate(col,0);
+ lcd.putc(*(line1+col));
+ lcd.locate(col,1);
+ lcd.putc(*(line2+col));
+ }
+}
+
+//............................................................................
+void QF::onStartup(void) {
+ // set up the SysTick timer to fire at BSP_TICKS_PER_SEC rate
+ SysTick_Config(SystemCoreClock / BSP_TICKS_PER_SEC);
+
+ // set priorities of all interrupts in the system...
+ NVIC_SetPriority(SysTick_IRQn, SYSTICK_PRIO);
+ //NVIC_SetPriority(EINT0_IRQn, GPIOPORTA_PRIO);
+
+ //NVIC_EnableIRQ(EINT0_IRQn);
+}
+//............................................................................
+void QF::onCleanup(void) {
+}
+//............................................................................
+void QK::onIdle(void) {
+
+ QF_INT_LOCK(dummy);
+ LED_PORT->FIOSET = LED4_BIT; // turn the LED4 on
+ __NOP(); // delay a bit to see some light intensity
+ __NOP();
+ __NOP();
+ __NOP();
+ LED_PORT->FIOCLR = LED4_BIT; // turn the LED4 off
+ QF_INT_UNLOCK(dummy);
+
+ __WFI();
+}
+
+//............................................................................
+void Q_onAssert(char const Q_ROM * const Q_ROM_VAR file, int line) {
+ (void)file; // avoid compiler warning
+ (void)line; // avoid compiler warning
+ QF_INT_LOCK(dummy); // make sure that all interrupts are disabled
+ // light up all LEDs
+ LED_PORT->FIOSET = (LED1_BIT | LED2_BIT | LED3_BIT | LED4_BIT);
+
+ for (;;) { // NOTE: replace the loop with reset for final version
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/bsp.h Wed Feb 08 22:20:11 2012 +0000 @@ -0,0 +1,13 @@ +#ifndef bsp_h +#define bsp_h + +#include "TextLCD.h" + +#define BSP_TICKS_PER_SEC 100 // system clock tick rate + +TextLCD lcd(p10, p11, p17, p18, p19, p20); // rs, e, d4-d7 + +void BSP_init(void); +void BSP_lcdScrollIn(char*, char*); // display functions +void BSP_lcdUpdate(char*,char*); +#endif \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hangman.h Wed Feb 08 22:20:11 2012 +0000
@@ -0,0 +1,29 @@
+#ifndef hangman_h
+#define hangman_h
+
+#include "bsp.h"
+
+enum HangmanSignals {
+ START_SIG,
+ PLAY_SIG,
+ SELECT_SIG,
+ WIN_SIG,
+ LOOSE_SIG,
+ FINISHED_SIG,
+ TERMINATE_SIG,
+ MAX_PUB_SIG,
+
+ SCROLL_SIG,
+ MAX_SIG
+};
+
+struct HostEvt : public QEvent {
+ int scroll_pos; // +1 - up, 0 - nochange, -1 - down
+};
+
+enum { MAX_LETTERS = 8 }; // max wrong letters before loosing
+
+extern QActive * const AO_Player; // active object "opaque" pointers
+extern QActive * const AO_Host;
+
+#endif
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/host.cpp Wed Feb 08 22:20:11 2012 +0000
@@ -0,0 +1,185 @@
+#include "qp_port.h"
+#include "hangman.h"
+#include "bsp.h"
+
+class Host : public QActive {
+private:
+ char* word;
+ uint8_t selected_word;
+ uint8_t num_letters;
+ uint8_t incorrect_letters;
+ char* used_letters;
+
+ char letter;
+ char output1[17]; // buffer for display
+ char output2[17];
+
+public:
+ Host();
+
+private:
+ static QState initial(Host *me, QEvent const *e);
+ static QState welcome(Host *me, QEvent const *e);
+ static QState playing(Host *me, QEvent const *e);
+};
+
+#define BANK_SIZE 4
+char* const word_bank[] = { "hangmann", "global", "micro", "sensor" };
+char* const win_msg = " You Win!";
+char* const loose_msg = " You suck!";
+char* const press_play_msg = "Push to continue";
+
+
+// Local objects -------------------------------------------------------------
+static Host l_host; // local Host object
+
+// Public-scope objects ------------------------------------------------------
+QActive * const AO_Host = &l_host; // "opaque" AO pointer
+
+//............................................................................
+Host::Host() : QActive((QStateHandler)&Host::initial) {
+}
+
+//............................................................................
+QState Host::initial(Host *me, QEvent const *e) {
+
+ QS_OBJ_DICTIONARY(&l_host);
+ QS_FUN_DICTIONARY(&QHsm::top);
+ QS_FUN_DICTIONARY(&Host::initial);
+ QS_FUN_DICTIONARY(&Host::playing);
+
+ QS_SIG_DICTIONARY(TERMINATE_SIG, 0); // global signal
+
+ QS_SIG_DICTIONARY(START_SIG, me); // signals for Host
+ QS_SIG_DICTIONARY(SCROLL_SIG, me);
+ QS_SIG_DICTIONARY(SELECT_SIG, me);
+
+ me->subscribe(TERMINATE_SIG);
+
+ // output welcome message
+ BSP_lcdUpdate("Push btn to play mbed hangman!","");
+ wait(2.0); // pause for 2 seconds
+
+ return Q_TRAN(&Host::welcome);
+}
+
+//............................................................................
+QState Host::welcome(Host *me, QEvent const *e) {
+ HostEvt *pe;
+
+ switch (e->sig) {
+ case START_SIG: {
+ uint8_t idx;
+
+ // init the game
+ time_t seconds = time(NULL);
+ me->selected_word = seconds % BANK_SIZE;
+ me->word = word_bank[me->selected_word];
+ me->num_letters = strlen(me->word);
+ me->incorrect_letters = 0;
+ for (int i = 0; i < 17; i++) { // clear output
+ me->output1[i] = ' ';
+ me->output2[i] = ' ';
+ }
+
+ for (idx = 0; idx < me->num_letters; idx++) {
+ me->output1[idx] = '_';
+ }
+ for (; idx < 16; idx++) {
+ me->output1[idx] = ' ';
+ }
+ me->letter = 'a';
+ idx = 16;
+ me->output1[idx] = me->letter;
+ // clear output2
+ for (idx = 0; idx < 17; idx++)
+ me->output2[idx] = ' ';
+
+ BSP_lcdUpdate(me->output1, me->output2); // update display
+
+ // post play to player
+ pe = Q_NEW(HostEvt, PLAY_SIG);
+ pe->scroll_pos = 0; // center
+ QF::PUBLISH(pe, me);
+
+ return Q_TRAN(&Host::playing);
+ }
+ case TERMINATE_SIG: {
+ QF::stop();
+ return Q_HANDLED();
+ }
+ }
+ return Q_SUPER(&QHsm::top);
+}
+
+//............................................................................
+QState Host::playing(Host *me, QEvent const *e) {
+
+ HostEvt *pe;
+
+ switch (e->sig) {
+ case SCROLL_SIG: {
+ if (((HostEvt const *)e)->scroll_pos < 0) { // go down
+ if (me->letter == 'a') // wrap around
+ me->letter = 'z';
+ else
+ me->letter--;
+ } else if (((HostEvt const *)e)->scroll_pos > 0) { // go up
+ if (me->letter == 'z') // wrap around
+ me->letter = 'a';
+ else
+ me->letter++;
+ }
+ me->output1[16] = me->letter;
+ BSP_lcdUpdate(me->output1,me->output2);
+
+ return Q_HANDLED();
+ }
+ case SELECT_SIG: {
+ // test for letter in word
+ char * pch;
+ pch=strchr(me->word,me->letter);
+ if (pch != NULL) { // found in word
+ do {
+ me->word[pch-me->word] = ' ';
+ me->output1[pch-me->word] = me->letter;
+ pch=strchr(pch+1,me->letter);
+ } while (pch!=NULL);
+ // update screen
+ BSP_lcdUpdate(me->output1,me->output2);
+ // test for win
+ if (strpbrk(me->word,"abcdefghijklmnopqrs") == NULL) { // win!
+ BSP_lcdScrollIn(win_msg, press_play_msg); // win msg
+ // post play to player
+ HostEvt *pe = Q_NEW(HostEvt, WIN_SIG);
+ pe->scroll_pos = 0; // center
+ QF::PUBLISH(pe, me);
+
+ // go to welcome state
+ return Q_TRAN(&Host::welcome);
+ }
+ } else {
+ if (++me->incorrect_letters >= MAX_LETTERS) { // loose
+ BSP_lcdScrollIn(loose_msg, press_play_msg); // message
+ // post play to player
+ HostEvt *pe = Q_NEW(HostEvt, WIN_SIG);
+ pe->scroll_pos = 0; // center
+ QF::PUBLISH(pe, me);
+
+ // go to welcome state
+ return Q_TRAN(&Host::welcome);
+ } else {
+ // post to used letters
+ me->output2[me->incorrect_letters-1] = (char)(me->letter - 33); // make uppercase
+ BSP_lcdUpdate(me->output1,me->output2); // update screen
+ }
+ }
+ return Q_HANDLED();
+ }
+ case TERMINATE_SIG: {
+ QF::stop();
+ return Q_HANDLED();
+ }
+ }
+ return Q_SUPER(&QHsm::top);
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Feb 08 22:20:11 2012 +0000
@@ -0,0 +1,12 @@
+#include "mbed.h"
+
+DigitalOut myled(LED1);
+
+int main() {
+ while(1) {
+ myled = 1;
+ wait(0.2);
+ myled = 0;
+ wait(0.2);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Feb 08 22:20:11 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/14f4805c468c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/qp.lib Wed Feb 08 22:20:11 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/QL/code/qp/#934bb9eea80b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/qp_config.h Wed Feb 08 22:20:11 2012 +0000 @@ -0,0 +1,10 @@ +#ifndef qp_config_h +#define qp_config_h + +// enable preemptive QK kernel +#define QK_PREEMPTIVE + +// define maximum number of active objects +#define QF_MAX_ACTIVE + +#endif \ No newline at end of file