mirror of https://git.sr.ht/~kikoodx/kble
54 lines
1.5 KiB
Zig
54 lines
1.5 KiB
Zig
// SPDX-License-Identifier: MIT
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// Copyright (c) 2021 KikooDX
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// This file is part of [KBLE](https://sr.ht/~kikoodx/kble), which is
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// MIT licensed. The MIT license requires this copyright notice to be
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// included in all copies and substantial portions of the software.
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//! Mouse (eurk) logic and operations.
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const ray = @cImport({
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@cInclude("raylib.h");
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});
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const std = @import("std");
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const Vec2 = @import("vec2.zig");
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const Rect = @import("rect.zig");
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const scaling = @import("scaling.zig");
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const draw_fn = @import("draw.zig");
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const Self = @This();
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pub const MouseMode = enum {
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wait, // Skip one turn.
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idle,
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sel,
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rect_sel,
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};
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mode: MouseMode, // State.
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pos: Vec2, // Where the cursor is.
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start_pos: Vec2, // Used for rectangle selection.
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/// Create structure with correct default values.
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pub fn init() Self {
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return Self{
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.mode = MouseMode.idle, // state
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.pos = Vec2{ .x = 0, .y = 0 },
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.start_pos = Vec2{ .x = 0, .y = 0 },
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};
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}
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/// Draw cursor or preview rectangle selection depending on mode.
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pub fn draw(self: *Self, scale: scaling.scale_type, offset: Vec2) void {
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switch (self.mode) {
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MouseMode.sel => {
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const x = (self.pos.x - offset.y) * scale;
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const y = (self.pos.y - offset.y) * scale;
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ray.DrawRectangleLines(x, y, scale, scale, ray.SKYBLUE);
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},
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MouseMode.rect_sel => {
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const rect = Rect.init_from_vec2(self.pos, self.start_pos);
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draw_fn.rectangle_selection(scale, offset, rect);
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},
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else => {},
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}
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}
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