112 lines
3.2 KiB
C++
112 lines
3.2 KiB
C++
#include "D_Pad.h"
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#include "ui/widgets/D_Pad.h"
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#include "../../manager/ResourceManager.h"
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D_Pad::D_Pad(void *appState, const float x, const float y, const float width, std::function<void(Direction)> callback)
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: UIWidget(appState), m_x(x), m_y(y), m_width(width), m_callback(std::move(callback))
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{
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}
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void D_Pad::Render(const uint64_t dt) const
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{
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const auto dPad =
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ResourceManager::Instance().GetTextureByName(GetContext()->MainRenderer(), "d-pad_normal.png");
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auto dst = SDL_FRect(m_x, m_y, m_width, m_width);
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SDL_RenderTexture(GetContext()->MainRenderer(), dPad, nullptr, &dst);
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SDL_DestroyTexture(dPad);
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if (m_isPressed != Direction::NONE)
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{
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const auto overlay =
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ResourceManager::Instance().GetTextureByName(GetContext()->MainRenderer(), "button_pressed_overlay.png");
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switch (m_isPressed)
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{
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case Direction::UP:
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dst = SDL_FRect(m_x + m_width / 3.0f, m_y, m_width / 3.0f, m_width / 3.0f);
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break;
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case Direction::DOWN:
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dst = SDL_FRect(m_x + m_width / 3.0f, m_y + 2 * m_width / 3.0f, m_width / 3.0f, m_width / 3.0f);
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break;
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case Direction::LEFT:
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dst = SDL_FRect(m_x, m_y + m_width / 3.0f, m_width / 3.0f, m_width / 3.0f);
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break;
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case Direction::RIGHT:
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dst = SDL_FRect(m_x + 2 * m_width / 3.0f, m_y + m_width / 3.0f, m_width / 3.0f, m_width / 3.0f);
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break;
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case Direction::NONE:
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break;
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}
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SDL_RenderTexture(GetContext()->MainRenderer(), overlay, nullptr, &dst);
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SDL_DestroyTexture(overlay);
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}
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}
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bool D_Pad::IsHit(const int mouse_x, const int mouse_y) const
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{
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const auto fx = static_cast<float>(mouse_x);
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const auto fy = static_cast<float>(mouse_y);
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return (fx >= m_x && fx <= (m_x + m_width) &&
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fy >= m_y && fy <= (m_y + m_width));
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}
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D_Pad::Direction D_Pad::GetDirectionFromTap(const float local_x, const float local_y) const
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{
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const float segment = m_width / 3.0f;
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int col = -1;
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if (local_x < segment)
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col = 0;
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else if (local_x < 2 * segment)
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col = 1;
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else if (local_x <= m_width)
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col = 2;
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else
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return Direction::NONE;
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int row = -1;
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if (local_y < segment)
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row = 0;
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else if (local_y < 2 * segment)
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row = 1;
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else if (local_y <= m_width)
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row = 2;
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else
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return Direction::NONE;
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if (col == 1 && row == 0)
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return Direction::UP;
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if (col == 1 && row == 2)
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return Direction::DOWN;
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if (col == 0 && row == 1)
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return Direction::LEFT;
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if (col == 2 && row == 1)
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return Direction::RIGHT;
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return Direction::NONE;
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}
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void D_Pad::OnTap(const int mouse_x, const int mouse_y)
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{
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if (m_callback)
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{
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const auto local_x = static_cast<float>(mouse_x) - m_x;
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if (const auto local_y = static_cast<float>(mouse_y) - m_y;
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local_x >= 0 && local_x <= m_width && local_y >= 0 && local_y <= m_width)
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{
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m_isPressed = GetDirectionFromTap(local_x, local_y);
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m_callback(m_isPressed);
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}
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}
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}
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void D_Pad::ReleaseTap(const int mouse_x, const int mouse_y)
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{
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m_isPressed = Direction::NONE;
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} |