core/src/ch/asynk/tankontank/engine/Tile.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151

package ch.asynk.tankontank.engine;

import java.util.Iterator;
import java.util.ArrayDeque;

import com.badlogic.gdx.utils.Disposable;

import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
import com.badlogic.gdx.math.Vector2;

import ch.asynk.tankontank.engine.gfx.Drawable;
import ch.asynk.tankontank.engine.gfx.StackedImages;

public abstract class Tile implements Drawable, Disposable
{
    private Vector2 center;
    private StackedImages overlays;
    private ArrayDeque<Pawn> stack;

    public abstract int costFrom(Pawn pawn, Orientation side, boolean road);
    public abstract boolean atLeastOneMove(Pawn pawn);
    public abstract boolean road(Orientation side);
    public abstract boolean isOffMap();
    public abstract boolean blockLineOfSightFrom(Tile tile);

    protected Tile()
    {
    }

    public Tile(float x, float y, TextureAtlas atlas)
    {
        this.stack = null;
        this.center = new Vector2(x, y);
        this.overlays = new StackedImages(atlas);
        this.overlays.centerOn(x, y);
    }

    @Override
    public void dispose()
    {
        if(stack != null) stack.clear();
        overlays.dispose();
    }

    public Vector2 getCenter()
    {
        return center;
    }

    public boolean isEmpty()
    {
        if (stack == null) return true;
        return stack.isEmpty();
    }

    public Iterator<Pawn> getIterator()
    {
        return stack.iterator();
    }

    public int push(Pawn pawn)
    {
        if (stack == null) stack = new ArrayDeque<Pawn>();
        stack.push(pawn);
        return stack.size();
    }

    public int remove(Pawn pawn)
    {
        stack.remove(pawn);
        return stack.size();
    }

    public Pawn getTopPawn()
    {
        if (isEmpty()) return null;
        return stack.getFirst();
    }

    public boolean hasUnits()
    {
        if (isEmpty()) return false;
        Iterator<Pawn> itr = getIterator();
        while(itr.hasNext()) {
            if (itr.next().isUnit())
                return true;
        }
        return false;
    }

    public boolean hasTargetsFor(Pawn pawn)
    {
        if (isEmpty()) return false;
        Iterator<Pawn> itr = getIterator();
        while(itr.hasNext()) {
            Pawn target = itr.next();
            if (pawn.canAttack(target)) return true;
        }

        return false;
    }

    public boolean mustBeDrawn()
    {
        if (!isEmpty()) return true;
        return hasOverlayEnabled();
    }

    public boolean disableOverlays()
    {
        overlays.disableAll();
        return !isEmpty();
    }

    public boolean hasOverlayEnabled()
    {
        return overlays.isEnabled();
    }

    public boolean isOverlayEnabled(int i)
    {
        return overlays.isEnabled(i);
    }

    public boolean enableOverlay(int i, boolean enable)
    {
        overlays.enable(i, enable);
        if (enable) return true;
        return mustBeDrawn();
    }

    @Override
    public void draw(Batch batch)
    {
        overlays.draw(batch);
        Pawn pawn = getTopPawn();
        if (pawn != null)
            pawn.draw(batch);
    }

    @Override
    public void drawDebug(ShapeRenderer debugShapes)
    {
        overlays.drawDebug(debugShapes);
        Pawn pawn = getTopPawn();
        if (pawn != null)
            pawn.drawDebug(debugShapes);
    }
}