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working on drawing multiple hexes
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-7
+52
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src/main.zig
+52
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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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const HexCell = struct { inner_radius: f32, outer_radius: f32, height: f32, width: 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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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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const corner = calculate_hex_corners(hex.center, hex.outer_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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}
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}
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const HexDirections = enum { top_left, top, top_right, bottom_right, bottom, bottom_left };
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fn add_hex(base: HexCell, direction: HexDirections) HexCell {
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const x_offset: i32 = @intFromFloat(3 / 2 * base.outer_radius);
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const y_offset: i32 = @intFromFloat(std.math.sqrt(3) * base.outer_radius);
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const x_sign: i2 = switch (direction) {
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.bottom_right => 1,
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.top_right => 1,
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.top => 0,
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.bottom => 0,
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.bottom_left => -1,
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.top_left => -1,
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};
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const y_sign: i2 = switch (direction) {
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.top => -1,
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.top_left => -1,
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.top_right => -1,
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.bottom => 1,
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.bottom_left => 1,
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.bottom_right => 1,
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};
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return new_hex(base.inner_radius, .{
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.x = base.center.x + x_sign * x_offset,
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.y = base.center.y + y_sign * y_offset,
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});
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}
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fn calculate_outer_radius(inner_radius: f32) f32 {
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return 2.0 * inner_radius / std.math.sqrt(3);
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}
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fn new_hex(inner_radius: f32, center: Point) HexCell {
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const size = calculate_outer_radius(inner_radius);
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return HexCell{ .inner_radius = inner_radius, .outer_radius = size, .height = 2 * inner_radius, .width = 2 * size, .center = center };
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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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//----------------------------------------------------------------------------------
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// TODO: Update your variables here
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//----------------------------------------------------------------------------------
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const cell = new_hex(20.0, .{
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.x = 200,
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.y = 200,
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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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const tl = add_hex(cell, .top_left);
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const br = add_hex(cell, .bottom_right);
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const grid = [_]HexCell{ cell, tl, br };
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// Draw
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//----------------------------------------------------------------------------------
···
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rl.clearBackground(.white);
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draw_hex(cell);
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for (grid) |value| {
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draw_hex(value);
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}
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//rl.drawText("Congrats! You created your first window!", 190, 200, 20, .light_gray);
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//----------------------------------------------------------------------------------