Zack Buhman
bf9a862a43
For a lack of a better idea, bind board and piece rotation to X/Y chess::do_move no longer advances the turn--prior to this change, castle moves incorrectly double-negated turn.
88 lines
1.3 KiB
C++
88 lines
1.3 KiB
C++
#pragma once
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#include <cstdint>
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#include "chess/chess.hpp"
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namespace render {
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struct view_transform {
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float piece_rotation;
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float board_rotation;
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};
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template <typename T>
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struct animator {
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T start;
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T end;
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int steps;
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int step;
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constexpr animator(T initial)
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: start(initial), end(initial), steps(0), step(0)
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{ }
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void set_target(T target_value, int target_steps)
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{
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if (target_value != end) {
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start = interpolate();
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end = target_value;
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steps = target_steps;
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step = 0;
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}
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}
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T interpolate()
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{
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if (step == steps)
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return end;
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T value = start + ((end - start) * step) / steps;
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step += 1;
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return value;
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}
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};
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struct button {
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bool a;
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bool b;
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bool x;
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bool y;
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};
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struct cursor {
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float x;
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float y;
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struct button button[2];
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constexpr cursor()
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: x(3.5f), y(3.5f)
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{
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button[0] = {false, false};
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button[1] = {false, false};
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}
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};
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struct cursor_state {
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constexpr static int num_cursors = 2;
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struct cursor cur[num_cursors];
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int port_map[4];
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constexpr cursor_state()
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{
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port_map[0] = 0;
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port_map[1] = 1;
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port_map[2] = -1;
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port_map[3] = -1;
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cur[0] = cursor();
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cur[1] = cursor();
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}
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};
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void render(const view_transform vt,
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const chess::game_state& game_state,
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const cursor_state cursor_state);
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}
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