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Update main.cpp
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‎src/main.cpp‎

Lines changed: 199 additions & 16 deletions
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#include <appdef.h>
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#include <cstddef>
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#include <cstdio>
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#include <sdk/calc/calc.h>
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#include <sdk/os/debug.h>
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#include <sdk/os/input.h>
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#include <sdk/os/lcd.h>
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#include <stdlib.h>
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APP_NAME("Your Cool App Name")
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APP_AUTHOR("me")
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APP_DESCRIPTION("A very cool app!")
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APP_VERSION("1.0.0")
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#ifndef PC
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APP_NAME("CPpong")
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APP_DESCRIPTION("A simple pong game. Use '<-', '->', '1' and '3' to control, 5 to restart, EXE or Clear to quit.")
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APP_AUTHOR("SnailMath (inspiration by InterChan)")
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APP_VERSION("1.0.0")
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#endif
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int main(int argc, char **argv, char **envp) {
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std::printf("Arguments:\n");
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for (std::size_t i = 0; i < static_cast<std::size_t>(argc); i++)
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std::printf(" - %zu: %s\n", i, argv[i]);
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//variables
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bool running;
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std::printf("Environment:\n");
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for (auto ptr = envp; *ptr != 0; ptr++)
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std::printf("%s\n", *ptr);
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#ifdef PC
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#define calcspeed 1
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#else
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#define calcspeed 3
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#endif
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std::fflush(stdout);
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Debug_WaitKey();
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}
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#define pv 3*calcspeed //player velocity
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//player and ball position and ball velocity
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int bx,by,vx,vy;
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unsigned px[2];
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//player scores
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int score[2];
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int firstmove = 1;
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//ball and player size
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#define pw 100
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#define ph 15
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#define br 10
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//define colors
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#define W 0xffff //white
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#define B 0x0000 //black
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bool waitkey;
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void circle(int x, int y, int r, uint16_t c){
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for (int ix = -r; ix<=r ; ix++)
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for (int iy = -r; iy<=r ; iy++)
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if( ix*ix + iy*iy < r*r) //a circle are all points where x^2+y^2=r^2 is true.
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//setPixel takes care to check if the dot is on the screen.
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setPixel(x+ix,y+iy,c);
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}
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void square(int x, int y, int w, int h, uint16_t c){
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for (int ix = 0; ix<w ; ix++)
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for (int iy = 0; iy<h ; iy++)
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//setPixel takes care to check if the dot is on the screen.
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setPixel(x+ix,y+iy,c);
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}
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void new_round(){
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px[0] = (width-pw)/2;
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px[1] = (width-pw)/2;
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bx = width/2;
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by = height/2;
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vx = 1*calcspeed;
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vy = 2*calcspeed * firstmove;
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firstmove = -firstmove;
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running = true;
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}
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void initialize_game(){
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waitkey = true;
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firstmove = 1;
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score[0]=0;
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score[1]=0;
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new_round();
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}
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//draw a 7-segment display with the segments in n lit up
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void segment(uint8_t n, int x, int y, int w, int h, uint16_t c){
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/*A*/ if(n&0b10000000) square(x, y, w+h, h, c);
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/*B*/ if(n&0b01000000) square(x+w, y, h, w+h, c);
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/*C*/ if(n&0b00100000) square(x+w, y+w, h, w+h, c);
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/*D*/ if(n&0b00010000) square(x, y+2*w, w+h, h, c);
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/*E*/ if(n&0b00001000) square(x, y+w, h, w+h, c);
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/*F*/ if(n&0b00000100) square(x, y, h, w+h, c);
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/*G*/ if(n&0b00000010) square(x, y+w, w+h, h, c);
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}
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//draw a 1 digit number on the screen
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void digit(uint8_t n, int x, int y, int w, int h, uint16_t c){
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switch (n) {
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case 0: segment(0b11111100, x, y, w, h, c); break;
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case 1: segment(0b01100000, x, y, w, h, c); break;
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case 2: segment(0b11011010, x, y, w, h, c); break;
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case 3: segment(0b11110010, x, y, w, h, c); break;
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case 4: segment(0b01100110, x, y, w, h, c); break;
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case 5: segment(0b10110110, x, y, w, h, c); break;
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case 6: segment(0b10111110, x, y, w, h, c); break;
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case 7: segment(0b11100000, x, y, w, h, c); break;
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case 8: segment(0b11111110, x, y, w, h, c); break;
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case 9: segment(0b11110110, x, y, w, h, c); break;
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}
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}
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//draw a 4 digit decimal number on the screen
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void number(uint16_t n, int x, int y, int w, int h, uint16_t c){
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if(n>=1000) digit((n/1000)%10, x , y, w, h, c);
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if(n>= 100) digit((n/100 )%10, x+2*w, y, w, h, c);
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if(n>= 10) digit((n/10 )%10, x+4*w, y, w, h, c);
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digit ((n )%10, x+6*w, y, w, h, c);
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}
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void drawplayfield(){
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//clear the screen
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fillScreen(B);
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//draw th net in the middle
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for (unsigned x=0; x<width; x+=28) square(x,height/2-3,14,6,W);
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//draw the scores
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number(score[0], width-(160), height/2-(3+20+20+5+10), 20, 5, color(128,128,128));
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number(score[1], width-(160), height/2+(3 +10), 20, 5, color(128,128,128));
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//draw player 0
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square(px[0],0,pw,ph,W);
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//draw player 1
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square(px[1],height-ph,pw,ph,W);
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//draw ball
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circle(bx,by,br,W);
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//refresh the screen
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LCD_Refresh();
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}
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#define handleInput() if(input()) break;
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bool input(){
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uint32_t key1, key2; //First create variables
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getKey(&key1, &key2); //then read the keys
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//Use testKey() to test if a specific key is pressed
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if(testKey(key1, key2, KEY_CLEAR)){return true;}
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if(testKey(key1, key2, KEY_EXE )){return true;}
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if(testKey(key1, key2, KEY_LEFT )){if(px[0]>0 )px[0]-=pv;}
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if(testKey(key1, key2, KEY_RIGHT)){if(px[0]<width-pw)px[0]+=pv;}
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if(testKey(key1, key2, KEY_1 )){if(px[1]>0 )px[1]-=pv;}
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if(testKey(key1, key2, KEY_3 )){if(px[1]<width-pw)px[1]+=pv;}
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if(testKey(key1, key2, KEY_5 )){if(waitkey){waitkey=false;new_round();}}else{waitkey=true;}
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return false;
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}
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//calculate collisions (for physics)
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void collide(int p){
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vy = -vy;
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int absvy = vy>0?vy:-vy;
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int b = bx - px[p];
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int r05 = br/2; // 0.5 * radius
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int r10 = br; // 1.0 * radius
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int r15 = r10+r05; // 1.5 * radius
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//avoid ball getting stuck in the corners
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if(bx<2*br)
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vx = 1*calcspeed;
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if(bx>(int)width-(2*br))
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vx = -1*calcspeed;
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//collision with the player
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if(b<-r15){//more than 1.5*r off (waay wrong)
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running=false;
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score[1-p]++;
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//if(p){firstmove=-1;}else{firstmove= 1;}
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}else if(b<r15){//between 0r and 1r off (exactly on the edge)
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vx -= absvy;
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}else if(b<pw-r15){//between 0r and right side of the player
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}else if(b<pw+r15){//between pw and pw+1.5*r
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vx += absvy;
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}else{ //more thab 1.5*r to the right
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running=false;
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score[1-p]++;
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//if(p){firstmove=-1;}else{firstmove= 1;}
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}
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//if(bx<px[p]-br)running=false;
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//if(bx>px[p]+pw+br)running=false;
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}
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//do the physics
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void physics(){
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if(!running)return;
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bx+=vx;
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by+=vy;
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//collide with left/right walls
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if(bx+br>=(int)width || bx-br<0) vx = -vx;
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//the ball won't reach the top or bottom wall.
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//if(by+br>=height || by-br<0) vy = -vy;
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//collide player 0
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if(by-br<ph) collide(0);
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//collide player 1
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if(by+br>=(int)height-ph) collide(1);
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}
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//The acutal main
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int main(){
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initialize_game();
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while(true){ //main loop
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handleInput();
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physics();
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drawplayfield();
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}
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}

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