core/src/ru/deadsoftware/cavecraft/game/GamePhysics.java

   1 package ru.deadsoftware.cavecraft.game;
   2
   3 import com.badlogic.gdx.Gdx;
   4 import com.badlogic.gdx.math.Rectangle;
   5 import com.badlogic.gdx.math.Vector2;
   6 import ru.deadsoftware.cavecraft.game.objects.Player;
   7
   8 public class GamePhysics {
   9
  10     public static final int PL_SPEED = 2;
  11
  12     private GameProc gameProc;
  13
  14     private Vector2 gravity;
  15
  16     public GamePhysics(GameProc gameProc) {
  17         this.gameProc = gameProc;
  18         gravity = new Vector2(0,2);
  19     }
  20
  21     private boolean checkColl(Rectangle rect) {
  22         int[] bl = new int [6];
  23         bl[0] = gameProc.world.getForeMap(((int)rect.x/16), ((int)rect.y/16));
  24         bl[1] = gameProc.world.getForeMap(((int)(rect.x+rect.width-1)/16), ((int)rect.y/16));
  25         bl[2] = gameProc.world.getForeMap(((int)rect.x/16), ((int)(rect.y+rect.height/2)/16));
  26         bl[3] = gameProc.world.getForeMap(((int)(rect.x+rect.width-1)/16), ((int)(rect.y+rect.height/2)/16));
  27         bl[4] = gameProc.world.getForeMap(((int)rect.x/16), ((int)(rect.y+rect.height-1)/16));
  28         bl[5] = gameProc.world.getForeMap(((int)(rect.x+rect.width-1)/16), ((int)(rect.y+(rect.height-1))/16));
  29         for (int b: bl) if (b>0) {
  30             return true;
  31         }
  32         return false;
  33     }
  34
  35     private void movePlayer(Player pl) {
  36         pl.position.add(pl.moveX);
  37         if (checkColl(pl.getRect())) {
  38             int d = 0;
  39             if (pl.moveX.x<0) d=1; else if (pl.moveX.x>0) d=-1;
  40             while (checkColl(pl.getRect())) pl.position.x+=d;
  41             //pl.moveX.setZero();
  42         }
  43         pl.position.add(pl.moveY);
  44         if (checkColl(pl.getRect())) {
  45             int d = 0;
  46             if (pl.moveY.y<0) d=1; else if (pl.moveY.y>0) d=-1;
  47             while (checkColl(pl.getRect())) pl.position.y+=d;
  48             pl.moveY.setZero();
  49         }
  50         pl.moveY.add(gravity);
  51         switch (pl.dir) {
  52             case 0:
  53                 gameProc.renderer.camTargetPos.x = pl.position.x-gameProc.renderer.camera.viewportWidth+100;
  54                 break;
  55             case 1:
  56                 gameProc.renderer.camTargetPos.x = pl.position.x-100;
  57                 break;
  58         }
  59     }
  60
  61     public void update(float delta) {
  62         movePlayer(gameProc.player);
  63         if (gameProc.renderer.camera.position.x - gameProc.renderer.camTargetPos.x <= 8 &&
  64                 gameProc.renderer.camera.position.x - gameProc.renderer.camTargetPos.x >= -8) {
  65             gameProc.renderer.camera.position.x = gameProc.renderer.camTargetPos.x;
  66         }
  67         if (gameProc.renderer.camera.position.x > gameProc.renderer.camTargetPos.x) {
  68             gameProc.renderer.camera.position.sub(16,0,0);
  69         }
  70         if (gameProc.renderer.camera.position.x < gameProc.renderer.camTargetPos.x) {
  71             gameProc.renderer.camera.position.add(16,0,0);
  72         }
  73         gameProc.renderer.camera.position.y = gameProc.player.position.y+gameProc.player.height/2
  74                 -gameProc.renderer.camera.viewportHeight/2;
  75     }
  76
  77 }