Hugo Hu / Mbed 2 deprecated BRAVEHEART

A complex 2D-dungeon game on LPC1768 in SWJTU-Leeds Joint School XJEL2645 project. Referenced from the framework contributed by https://os.mbed.com/users/Siriagus/code/SimplePlatformGame/

Dependencies:   mbed N5110 ShiftReg PinDetect

Game.cpp@9:da608ae65df9, 2015-05-03 (annotated)

Committer:
Siriagus
Date:
Sun May 03 11:48:42 2015 +0000
Revision:
9:da608ae65df9
Parent:
8:9ac6a428fa26
Child:
11:adb68da98262
Player movement + bullets added

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Siriagus 7:678873947b29 1 #include "Game.h"
Siriagus 7:678873947b29 2
Siriagus 8:9ac6a428fa26 3 Serial pc(USBTX, USBRX); // TO DELETE - DEBUGGING ONLY
Siriagus 8:9ac6a428fa26 4
Siriagus 8:9ac6a428fa26 5 // BUG: Registrer jo bare btn press, må være en bedre måte, men er trøtt nå
Siriagus 8:9ac6a428fa26 6
Siriagus 8:9ac6a428fa26 7 void Game::init()
Siriagus 8:9ac6a428fa26 8 {
Siriagus 9:da608ae65df9 9 // Player
Siriagus 9:da608ae65df9 10 player.x = player.y = 10;
Siriagus 9:da608ae65df9 11 player.width = player.height = 5;
Siriagus 9:da608ae65df9 12 onGround = false;
Siriagus 8:9ac6a428fa26 13 }
Siriagus 8:9ac6a428fa26 14
Siriagus 8:9ac6a428fa26 15 // Functions
Siriagus 7:678873947b29 16 void Game::update(float dt)
Siriagus 7:678873947b29 17 {
Siriagus 8:9ac6a428fa26 18 // Handle input, should be its own function
Siriagus 8:9ac6a428fa26 19 switch(input->joystick->getDirection())
Siriagus 8:9ac6a428fa26 20 {
Siriagus 8:9ac6a428fa26 21
Siriagus 8:9ac6a428fa26 22 case LEFT:
Siriagus 8:9ac6a428fa26 23 case UP_LEFT:
Siriagus 8:9ac6a428fa26 24 case DOWN_LEFT:
Siriagus 8:9ac6a428fa26 25 player.vx = -2;
Siriagus 9:da608ae65df9 26 player.goingLeft = true;
Siriagus 8:9ac6a428fa26 27 break;
Siriagus 8:9ac6a428fa26 28
Siriagus 8:9ac6a428fa26 29 case RIGHT:
Siriagus 8:9ac6a428fa26 30 case UP_RIGHT:
Siriagus 8:9ac6a428fa26 31 case DOWN_RIGHT:
Siriagus 8:9ac6a428fa26 32 player.vx = 2;
Siriagus 9:da608ae65df9 33 player.goingLeft = false;
Siriagus 8:9ac6a428fa26 34 break;
Siriagus 8:9ac6a428fa26 35
Siriagus 8:9ac6a428fa26 36
Siriagus 8:9ac6a428fa26 37 case UP:
Siriagus 8:9ac6a428fa26 38 //player.vy = -4;
Siriagus 8:9ac6a428fa26 39 break;
Siriagus 8:9ac6a428fa26 40 case DOWN:
Siriagus 8:9ac6a428fa26 41 player.vy += 1;
Siriagus 8:9ac6a428fa26 42 break;
Siriagus 8:9ac6a428fa26 43
Siriagus 8:9ac6a428fa26 44 case CENTER:
Siriagus 8:9ac6a428fa26 45 player.vx = 0;
Siriagus 8:9ac6a428fa26 46 break;
Siriagus 8:9ac6a428fa26 47 }
Siriagus 7:678873947b29 48
Siriagus 8:9ac6a428fa26 49
Siriagus 9:da608ae65df9 50 if (player.y < HEIGHT-10) player.vy += 1; // gravity
Siriagus 9:da608ae65df9 51 else if (player.vy > 0) {player.vy = 0; onGround = true;}
Siriagus 9:da608ae65df9 52
Siriagus 8:9ac6a428fa26 53
Siriagus 9:da608ae65df9 54 if (input->read(Input::ButtonA) && onGround) // && player.onGround)
Siriagus 8:9ac6a428fa26 55 {
Siriagus 8:9ac6a428fa26 56 player.vy = -4;
Siriagus 9:da608ae65df9 57 onGround = false;
Siriagus 8:9ac6a428fa26 58 }
Siriagus 8:9ac6a428fa26 59
Siriagus 8:9ac6a428fa26 60 if (player.vy > 3) player.vy = 3;
Siriagus 8:9ac6a428fa26 61
Siriagus 8:9ac6a428fa26 62 player.x += player.vx;
Siriagus 8:9ac6a428fa26 63 player.y += player.vy;
Siriagus 8:9ac6a428fa26 64
Siriagus 8:9ac6a428fa26 65 // Bullets - TODO: Give the bullets a direction - need to delete them when they go off the screen
Siriagus 9:da608ae65df9 66 if (input->read(Input::ButtonB) && releasedBtnB)
Siriagus 8:9ac6a428fa26 67 {
Siriagus 8:9ac6a428fa26 68 Point* bullet = new Point;
Siriagus 8:9ac6a428fa26 69 bullet->x = player.x-1;
Siriagus 8:9ac6a428fa26 70 bullet->y = player.y + 2;
Siriagus 9:da608ae65df9 71 bullet->vx = (player.goingLeft) ? -4 : 4;
Siriagus 9:da608ae65df9 72 bullet->vy = 0;
Siriagus 8:9ac6a428fa26 73
Siriagus 8:9ac6a428fa26 74 bullets.push_back(bullet);
Siriagus 9:da608ae65df9 75 releasedBtnB = false;
Siriagus 8:9ac6a428fa26 76 }
Siriagus 9:da608ae65df9 77 else if (!input->read(Input::ButtonB))
Siriagus 9:da608ae65df9 78 releasedBtnB = true;
Siriagus 8:9ac6a428fa26 79
Siriagus 8:9ac6a428fa26 80 // Loop through bullets and move them
Siriagus 9:da608ae65df9 81 for (std::vector<Point*>::iterator it = bullets.begin(); it != bullets.end();)
Siriagus 8:9ac6a428fa26 82 {
Siriagus 9:da608ae65df9 83 (*it)->x += (*it)->vx;
Siriagus 9:da608ae65df9 84
Siriagus 9:da608ae65df9 85 // Check if outside
Siriagus 9:da608ae65df9 86 int x = (*it)->x;
Siriagus 9:da608ae65df9 87 if (x < 0 || x > WIDTH)
Siriagus 9:da608ae65df9 88 {
Siriagus 9:da608ae65df9 89 delete (*it);
Siriagus 9:da608ae65df9 90 it = bullets.erase(it); // go to next element
Siriagus 9:da608ae65df9 91 }
Siriagus 9:da608ae65df9 92 else
Siriagus 9:da608ae65df9 93 ++it; // go to next element
Siriagus 8:9ac6a428fa26 94
Siriagus 8:9ac6a428fa26 95 // TODO: Check for collisions
Siriagus 8:9ac6a428fa26 96 // TODO: Go both ways
Siriagus 8:9ac6a428fa26 97 }
Siriagus 7:678873947b29 98 }
Siriagus 7:678873947b29 99
Siriagus 7:678873947b29 100 void Game::render()
Siriagus 7:678873947b29 101 {
Siriagus 8:9ac6a428fa26 102 // Draw player - TODO: Make this a part of sprite class (so they can draw themselves)
Siriagus 8:9ac6a428fa26 103 int x0, x1, y0, y1;
Siriagus 8:9ac6a428fa26 104 x0 = (player.x < 0) ? 0 : player.x; // x0 = max(0,x);
Siriagus 8:9ac6a428fa26 105 y0 = (player.y < 0) ? 0 : player.y; // y0 = max(0,y);
Siriagus 8:9ac6a428fa26 106 x1 = (player.width + player.x > WIDTH) ? WIDTH : player.width + player.x; //x1 = min(WIDTH, width);
Siriagus 8:9ac6a428fa26 107 y1 = (player.height + player.y > HEIGHT) ? HEIGHT : player.height + player.y; //y1 = min(HEIGHT, height);
Siriagus 8:9ac6a428fa26 108
Siriagus 8:9ac6a428fa26 109 for (int i = y0; i < y1; ++i)
Siriagus 8:9ac6a428fa26 110 {
Siriagus 8:9ac6a428fa26 111 for (int j = x0; j < x1; ++j)
Siriagus 8:9ac6a428fa26 112 {
Siriagus 9:da608ae65df9 113 // If player is going right, obtain data from sprite in reverse order => render in reverse
Siriagus 9:da608ae65df9 114 int xIndex = (player.goingLeft) ? (j-x0) : (player.width - 1 - (j-x0));
Siriagus 9:da608ae65df9 115
Siriagus 9:da608ae65df9 116 if (Image::Player[i-y0][xIndex])
Siriagus 8:9ac6a428fa26 117 lcd->setPixel(j,i);
Siriagus 8:9ac6a428fa26 118 }
Siriagus 8:9ac6a428fa26 119 }
Siriagus 8:9ac6a428fa26 120
Siriagus 9:da608ae65df9 121 // Render bullets
Siriagus 8:9ac6a428fa26 122 for (std::vector<Point*>::iterator it = bullets.begin(); it != bullets.end(); ++it)
Siriagus 8:9ac6a428fa26 123 {
Siriagus 8:9ac6a428fa26 124 int x, y;
Siriagus 8:9ac6a428fa26 125 x = (*it)->x;
Siriagus 8:9ac6a428fa26 126 y = (*it)->y;
Siriagus 8:9ac6a428fa26 127
Siriagus 8:9ac6a428fa26 128 if (x >= 0 && x < WIDTH && y >= 0 && y < HEIGHT) // Boundary check
Siriagus 8:9ac6a428fa26 129 lcd->setPixel(x,y);
Siriagus 8:9ac6a428fa26 130 }
Siriagus 7:678873947b29 131 }