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feat: draw a hexagon
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src/main.zig
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src/main.zig
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const rl = @import("raylib");
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const Point = struct { x: i32, y: i32 };
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const HexCell = struct { inner_radius: f32, center: Point };
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fn calculate_hex_corners(center: Point, size: f32, _i: usize) Point {
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const i: f32 = @floatFromInt(_i);
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const angle_deg = 60 * i;
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const angle_rad = std.math.degreesToRadians(angle_deg);
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const x_offset: i32 = @intFromFloat(size * std.math.cos(angle_rad));
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const y_offset: i32 = @intFromFloat(size * std.math.sin(angle_rad));
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return Point{ .x = center.x + x_offset, .y = center.y + y_offset };
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}
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fn draw_hex(hex: HexCell) void {
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var corners: [6]Point = undefined;
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for (0..6) |i| {
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const corner = calculate_hex_corners(hex.center, hex.inner_radius, i);
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corners[i] = corner;
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rl.drawCircle(corner.x, corner.y, 5.0, .black);
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}
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for (0..6) |i| {
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const start = corners[i];
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const end = corners[@mod(i + 1, corners.len)];
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rl.drawLine(start.x, start.y, end.x, end.y, .black);
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}
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}
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pub fn main() anyerror!void {
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// Initialization
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//--------------------------------------------------------------------------------------
···
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// TODO: Update your variables here
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//----------------------------------------------------------------------------------
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const cell = HexCell{ .inner_radius = 50.0, .center = .{
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.x = 100,
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.y = 100,
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} };
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// Draw
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//----------------------------------------------------------------------------------
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rl.beginDrawing();
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rl.clearBackground(.white);
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rl.drawText("Congrats! You created your first window!", 190, 200, 20, .light_gray);
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draw_hex(cell);
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//rl.drawText("Congrats! You created your first window!", 190, 200, 20, .light_gray);
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//----------------------------------------------------------------------------------
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}
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}