summaryrefslogtreecommitdiff
path: root/Userland/Libraries/LibCards/CardStack.h
blob: 6fa274a050bd3e22acc35da8f7862b3cb15aa097 (plain)
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
/*
 * Copyright (c) 2020, Till Mayer <till.mayer@web.de>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include "Card.h"
#include <AK/Format.h>
#include <AK/RefCounted.h>
#include <AK/Vector.h>

namespace Cards {

class CardStack final : public RefCounted<CardStack> {
public:
    enum class Type {
        Invalid,
        Stock,
        Normal,
        Waste,
        Play,
        Foundation
    };

    enum class MovementRule {
        Alternating,
        Same,
        Any,
    };

    CardStack();
    CardStack(Gfx::IntPoint position, Type type, RefPtr<CardStack> covered_stack = nullptr);

    bool is_empty() const { return m_stack.is_empty(); }
    Type type() const { return m_type; }
    Vector<NonnullRefPtr<Card>> const& stack() const { return m_stack; }
    size_t count() const { return m_stack.size(); }
    Card const& peek() const { return m_stack.last(); }
    Card& peek() { return m_stack.last(); }
    Gfx::IntRect const& bounding_box() const { return m_bounding_box; }

    bool make_top_card_visible(); // Returns true if the card was flipped.

    ErrorOr<void> push(NonnullRefPtr<Card>);
    NonnullRefPtr<Card> pop();
    ErrorOr<void> take_all(CardStack&);
    void rebound_cards();

    bool is_allowed_to_push(Card const&, size_t stack_size = 1, MovementRule movement_rule = MovementRule::Alternating) const;
    ErrorOr<void> add_all_grabbed_cards(Gfx::IntPoint click_location, Vector<NonnullRefPtr<Card>>& grabbed, MovementRule movement_rule = MovementRule::Alternating);

    bool preview_card(Gfx::IntPoint click_location);
    void clear_card_preview();

    void paint(GUI::Painter&, Gfx::Color background_color);
    void clear();

    void set_highlighted(bool highlighted) { m_highlighted = highlighted; }

private:
    struct StackRules {
        uint8_t shift_x { 0 };
        uint8_t shift_y { 0 };
        uint8_t step { 1 };
        uint8_t shift_y_upside_down { 0 };
    };

    static constexpr StackRules rules_for_type(Type stack_type)
    {
        switch (stack_type) {
        case Type::Foundation:
            return { 2, 1, 4, 1 };
        case Type::Normal:
            return { 0, 20, 1, 3 };
        case Type::Stock:
            return { 2, 1, 8, 1 };
        case Type::Waste:
            return { 0, 0, 1, 0 };
        case Type::Play:
            return { 20, 0, 1, 0 };
        default:
            return {};
        }
    }

    void calculate_bounding_box();

    // An optional stack that this stack is painted on top of.
    // eg, in Solitaire the Play stack is positioned over the Waste stack.
    RefPtr<CardStack> m_covered_stack;

    Vector<NonnullRefPtr<Card>> m_stack;
    Vector<Gfx::IntPoint> m_stack_positions;
    Gfx::IntPoint m_position;
    Gfx::IntRect m_bounding_box;
    Type m_type { Type::Invalid };
    StackRules m_rules;
    Gfx::IntRect m_base;
    bool m_highlighted { false };
};

}

template<>
struct AK::Formatter<Cards::CardStack> : Formatter<FormatString> {
    ErrorOr<void> format(FormatBuilder& builder, Cards::CardStack const& stack)
    {
        StringView type;

        switch (stack.type()) {
        case Cards::CardStack::Type::Stock:
            type = "Stock"sv;
            break;
        case Cards::CardStack::Type::Normal:
            type = "Normal"sv;
            break;
        case Cards::CardStack::Type::Foundation:
            type = "Foundation"sv;
            break;
        case Cards::CardStack::Type::Waste:
            type = "Waste"sv;
            break;
        case Cards::CardStack::Type::Play:
            type = "Play"sv;
            break;
        default:
            VERIFY_NOT_REACHED();
        }

        StringBuilder cards;
        bool first_card = true;

        for (auto const& card : stack.stack()) {
            cards.appendff("{}{}", (first_card ? "" : " "), card);
            first_card = false;
        }

        return Formatter<FormatString>::format(builder, "{:<10} {:>16}: {}"sv, type, stack.bounding_box(), cards.to_deprecated_string());
    }
};