Diff: main.cpp

Revision:

3:cf9fead9c3f4

Child:

4:1ebf8b8842e0

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu May 14 13:12:28 2020 +0000
@@ -0,0 +1,208 @@
+/*
+ELEC2645 Embedded Systems Project
+School of Electronic & Electrical Engineering
+University of Leeds
+Name:Li Ruofan
+Username:el17rl
+Student ID Number:201199450
+Date:12 May 2020
+*/
+#include "mbed.h"
+#include "N5110.h"
+#include "Gamepad.h"
+#include "shot.h"
+#include "Ufo.h"
+#include "Spaceship.h"
+#include "bgm.h"
+
+#define SPACESHIP_WIDTH 5
+#define SPACESHIP_HEIGHT 6
+#define UFO_SIZE 4
+#define UFO_SPEED 1
+#define SPACESHIP_LIFE 2
+
+/////////////// objects ///////////////
+N5110 lcd(PTC9,PTC0,PTC7,PTD2,PTD1,PTC11);
+Joystick joystick(PTB10,PTB11,PTC16);
+InterruptIn start(PTC5);
+InterruptIn buttonX(PTC17);
+InterruptIn buttonY(PTC12);
+InterruptIn buttonA(PTB9);
+InterruptIn buttonB(PTD0);
+BusOut output(PTA1,PTA2,PTC2,PTC3,PTC4,PTD3); //leds
+bgm bgm;
+
+Ufo *Ufo = NULL;
+shot *shot[5] = {NULL,NULL,NULL,NULL,NULL};
+Spaceship *Spaceship = NULL;
+Homepage *Homepage = NULL;
+
+int score[3] = {0,0,0};
+int curScore = 0;
+int fail = 0;
+int count = 0;
+int mode = 0;
+
+///////////// prototypes ///////////////
+void attack();
+void move(int signal);
+void shoot();
+void welcome();
+void over();
+void updateScore();
+void over();
+void init();
+void updateGame();
+
+///////////// functions ////////////////
+int main(){
+        
+        init();
+        
+        while (1) {
+           //welcome to the star war
+           Homepage->welcome(lcd,output,bgm);
+           //choose different function
+           Homepage->Homepage(lcd,buttonA,buttonY,buttonX,buttonB,start,score,3);          
+           Spaceship = new Spaceship();
+           Spaceship->init(37,38,10,10);
+           //choose the mode: easy, normal, defficult
+           mode = Homepage->getMode();
+            while(1){  
+                 //playing...
+                  updateGame();
+                  //failing, check weather playing again
+                  if (fail == 1) {
+                    int tmp = Homepage->again(lcd,curScore,buttonX,buttonY);
+                    if(tmp == 0)
+                        //do not play again
+                        break;
+                    else{
+                            //play again
+                            curScore+=tmp;
+                            fail = 0;
+                            lcd.clear();
+                            Ufo = NULL;
+                        }
+                  }
+                  count++;
+                  //change Ufo's speed
+                  if(count %8 == 0)Ufo->setSpeed(Ufo->getSpeed()+1);
+                  wait(1.0f/3);                   
+            } 
+            over();           
+            while (start == 0){
+            } 
+            lcd.clear();
+
+        }         
+}
+//this function is used to update a game, such as 
+//display the current score, draw Spaceship, shot ect.  
+void updateGame(){
+    Homepage->displayCurScore(lcd,curScore);
+    Direction d = joystick.get_direction();
+    Spaceship->update(d);
+    Spaceship->draw(lcd);
+    shoot();
+    attack();
+    lcd.clear();
+}
+
+// initialies buttons, lcd and joystick
+void init(){
+    buttonX.mode(PullDown);
+    start.mode(PullDown);
+    buttonA.mode(PullDown);
+    buttonY.mode(PullDown);
+    buttonB.mode(PullDown);
+    joystick.init();       
+    lcd.init();
+    Homepage = new Homepage();
+}
+
+//do something about game over,
+//clear data, Bgm, etc.
+void over(){
+    bgm.tone(1500.0,0.5);
+    Homepage->over(lcd,output); 
+    Ufo = NULL;
+    for(int i = 0;i<5;i++)shot[i] = NULL;
+    fail = 0;
+    count = 0;
+    updateScore();
+    curScore = 0;
+}
+
+//update top 3 history scores when game over
+void updateScore(){
+    for(int i = 0;i<3;i++){
+        if(score[i]<curScore){
+            //score[i] = curScore;
+            for(int j = 2;j>i;j--){
+                score[j] = score[j-1];
+            }
+            score[i] = curScore;
+            break;
+        }
+    }
+}
+
+//display the movement of the shot
+//initialize the shot
+//shot moves upwards until the Ufo's blood ran out.
+void shoot() {
+    if (buttonX == 1) {
+        for(int i = 0;i<5;i++){
+            if(shot[i] == NULL){
+                shot[i] = new shot();
+                shot[i]->init(Spaceship->getPos().x+3,35,5,3);
+                break;
+            }
+        }
+    } 
+    for(int i = 0;i<5;i++){
+        if(shot[i]!=NULL){
+            shot[i]->draw(lcd);
+            lcd.refresh();
+            if(shot[i]->getPos().x>=Ufo->getPos().x && shot[i]->getPos().x<=(Ufo->getPos().x+12) && shot[i]->getPos().y<=(Ufo->getPos().y+5)){ //being shot
+                bgm.tone(750.0,0.1);
+                shot[i] = NULL;
+                Ufo->setBlood(1);
+                if(Ufo->getBlood() <= 0){
+                    Ufo = NULL; //destroy 
+                    curScore+=((mode+1)*2);   //get points according to the mode
+                }             
+            }else if(shot[i]->getPos().y<=0){
+                shot[i] = NULL;
+            }else {
+                shot[i]->update();
+            }
+        }
+    }
+}
+
+//display the movement of the Ufo
+//initialize the Ufo
+//Ufo moves downwards until meets the Spaceship
+void attack() { 
+    if(Ufo == NULL){
+        Ufo = new Ufo(mode);
+        Ufo->init(12,5);
+        Ufo->draw(lcd,mode);
+        lcd.refresh();
+    } else {
+        Ufo->update();
+        if(Ufo->getPos().y>=33){
+            fail = 1;
+        }else{
+            Ufo->draw(lcd,mode);
+            lcd.refresh();
+        }
+    }
+}
+
+
+
+
+