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226 lines
8.5 KiB
C
226 lines
8.5 KiB
C
/*****************************************************************************
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* Product: "Fly'n'Shoot" game example
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* Last Updated for Version: 4.5.00
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* Date of the Last Update: May 18, 2012
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*
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* Q u a n t u m L e a P s
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* ---------------------------
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* innovating embedded systems
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*
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* Copyright (C) 2002-2012 Quantum Leaps, LLC. All rights reserved.
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*
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* This program is open source software: you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as published
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* by the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* Alternatively, this program may be distributed and modified under the
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* terms of Quantum Leaps commercial licenses, which expressly supersede
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* the GNU General Public License and are specifically designed for
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* licensees interested in retaining the proprietary status of their code.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Contact information:
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* Quantum Leaps Web sites: http://www.quantum-leaps.com
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* http://www.state-machine.com
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* e-mail: info@quantum-leaps.com
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*****************************************************************************/
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#include "qp_port.h"
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#include "bsp.h"
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#include "game.h"
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Q_DEFINE_THIS_FILE
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/* local objects -----------------------------------------------------------*/
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typedef struct Mine2Tag {
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QHsm super; /* extend the QHsm class */
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uint8_t x;
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uint8_t y;
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uint8_t exp_ctr;
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} Mine2;
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static QState Mine2_initial (Mine2 *me, QEvt const *e);
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static QState Mine2_unused (Mine2 *me, QEvt const *e);
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static QState Mine2_used (Mine2 *me, QEvt const *e);
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static QState Mine2_planted (Mine2 *me, QEvt const *e);
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static QState Mine2_exploding(Mine2 *me, QEvt const *e);
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static Mine2 l_mine2[GAME_MINES_MAX]; /* a pool of type-2 mines */
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/* helper macro to provide the ID of this mine */
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#define MINE_ID(me_) ((me_) - l_mine2)
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/*..........................................................................*/
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QHsm *Mine2_ctor(uint8_t id) {
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Mine2 *me;
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Q_REQUIRE(id < GAME_MINES_MAX);
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me = &l_mine2[id];
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QHsm_ctor(&me->super, (QStateHandler)&Mine2_initial);/*superclass' ctor */
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return (QHsm *)me;
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}
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/*..........................................................................*/
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QState Mine2_initial(Mine2 *me, QEvt const *e) {
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static uint8_t dict_sent;
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(void)e; /* avoid the "unreferenced parameter" warning */
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if (!dict_sent) {
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QS_OBJ_DICTIONARY(&l_mine2[0]); /* obj. dictionaries for Mine2 pool */
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QS_OBJ_DICTIONARY(&l_mine2[1]);
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QS_OBJ_DICTIONARY(&l_mine2[2]);
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QS_OBJ_DICTIONARY(&l_mine2[3]);
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QS_OBJ_DICTIONARY(&l_mine2[4]);
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QS_FUN_DICTIONARY(&Mine2_initial);/*fun. dictionaries for Mine2 HSM */
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QS_FUN_DICTIONARY(&Mine2_unused);
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QS_FUN_DICTIONARY(&Mine2_used);
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QS_FUN_DICTIONARY(&Mine2_planted);
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QS_FUN_DICTIONARY(&Mine2_exploding);
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dict_sent = 1;
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}
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QS_SIG_DICTIONARY(MINE_PLANT_SIG, me); /* local signals */
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QS_SIG_DICTIONARY(MINE_DISABLED_SIG, me);
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QS_SIG_DICTIONARY(MINE_RECYCLE_SIG, me);
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QS_SIG_DICTIONARY(SHIP_IMG_SIG, me);
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QS_SIG_DICTIONARY(MISSILE_IMG_SIG, me);
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return Q_TRAN(&Mine2_unused);
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}
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/*..........................................................................*/
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QState Mine2_unused(Mine2 *me, QEvt const *e) {
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switch (e->sig) {
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case MINE_PLANT_SIG: {
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me->x = ((ObjectPosEvt const *)e)->x;
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me->y = ((ObjectPosEvt const *)e)->y;
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return Q_TRAN(&Mine2_planted);
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}
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}
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return Q_SUPER(&QHsm_top);
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}
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/*..........................................................................*/
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QState Mine2_used(Mine2 *me, QEvt const *e) {
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switch (e->sig) {
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case Q_EXIT_SIG: {
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/* tell the Tunnel that this mine is becoming disabled */
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MineEvt *mev = Q_NEW(MineEvt, MINE_DISABLED_SIG);
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mev->id = MINE_ID(me);
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QACTIVE_POST(AO_Tunnel, (QEvt *)mev, me);
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return Q_HANDLED();
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}
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case MINE_RECYCLE_SIG: {
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return Q_TRAN(&Mine2_unused);
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}
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}
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return Q_SUPER(&QHsm_top);
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}
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/*..........................................................................*/
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QState Mine2_planted(Mine2 *me, QEvt const *e) {
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uint8_t x;
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uint8_t y;
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uint8_t bmp;
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switch (e->sig) {
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case TIME_TICK_SIG: {
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if (me->x >= GAME_SPEED_X) {
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ObjectImageEvt *oie;
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me->x -= GAME_SPEED_X; /* move the mine 1 step */
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/* tell the Tunnel to draw the Mine */
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oie = Q_NEW(ObjectImageEvt, MINE_IMG_SIG);
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oie->x = me->x;
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oie->y = me->y;
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oie->bmp = MINE2_BMP;
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QACTIVE_POST(AO_Tunnel, (QEvt *)oie, me);
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}
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else {
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return Q_TRAN(&Mine2_unused);
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}
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return Q_HANDLED();
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}
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case SHIP_IMG_SIG: {
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x = (uint8_t)((ObjectImageEvt const *)e)->x;
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y = (uint8_t)((ObjectImageEvt const *)e)->y;
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bmp = (uint8_t)((ObjectImageEvt const *)e)->bmp;
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/* test for incoming Ship hitting this mine */
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if (do_bitmaps_overlap(MINE2_BMP, me->x, me->y, bmp, x, y)) {
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static MineEvt const mine2_hit = {
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{ HIT_MINE_SIG, 0 }, /* the QEvt base instance */
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2 /* type of the mine (2 for type-2 mine) */
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};
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QACTIVE_POST(AO_Ship, (QEvt *)&mine2_hit, me);
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/* go straight to 'disabled' and let the Ship do
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* the exploding
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*/
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return Q_TRAN(&Mine2_unused);
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}
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return Q_HANDLED();
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}
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case MISSILE_IMG_SIG: {
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x = (uint8_t)((ObjectImageEvt const *)e)->x;
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y = (uint8_t)((ObjectImageEvt const *)e)->y;
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bmp = (uint8_t)((ObjectImageEvt const *)e)->bmp;
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/* test for incoming Missile hitting this mine */
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/* NOTE: Mine type-2 is nastier than Mine type-1.
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* The type-2 mine can hit the Ship with any of its
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* "tentacles". However, it can be destroyed by the
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* Missile only by hitting its center, defined as
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* a smaller bitmap MINE2_MISSILE_BMP.
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*/
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if (do_bitmaps_overlap(MINE2_MISSILE_BMP,
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me->x, me->y, bmp, x, y))
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{
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static ScoreEvt const mine2_destroyed = {
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{ DESTROYED_MINE_SIG, 0 }, /* the QEvt base instance */
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45 /* score for destroying Mine type-2 */
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};
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QACTIVE_POST(AO_Missile, (QEvt *)&mine2_destroyed, me);
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return Q_TRAN(&Mine2_exploding);
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}
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return Q_HANDLED();
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}
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}
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return Q_SUPER(&Mine2_used);
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}
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/*..........................................................................*/
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QState Mine2_exploding(Mine2 *me, QEvt const *e) {
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switch (e->sig) {
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case Q_ENTRY_SIG: {
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me->exp_ctr = 0;
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return Q_HANDLED();
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}
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case TIME_TICK_SIG: {
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if ((me->x >= GAME_SPEED_X) && (me->exp_ctr < 15)) {
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ObjectImageEvt *oie;
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++me->exp_ctr; /* advance the explosion counter */
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me->x -= GAME_SPEED_X; /* move explosion by 1 step */
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/* tell the Game to render the current stage of Explosion */
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oie = Q_NEW(ObjectImageEvt, EXPLOSION_SIG);
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oie->x = me->x + 1; /* x of explosion */
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oie->y = (int8_t)((int)me->y - 4 + 2); /* y of explosion */
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oie->bmp = EXPLOSION0_BMP + (me->exp_ctr >> 2);
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QACTIVE_POST(AO_Tunnel, (QEvt *)oie, me);
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}
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else {
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return Q_TRAN(&Mine2_unused);
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}
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return Q_HANDLED();
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}
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}
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return Q_SUPER(&Mine2_used);
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}
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