johnbakhmat.dev
this repo has no description
chore: cleanup
+77
-84
+61
src/hex.zig
+61
src/hex.zig
···
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//! By convention, root.zig is the root source file when making a library.
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const std = @import("std");
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const PI: comptime_float = std.math.pi;
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const sqrt_3: comptime_float = std.math.sqrt(3.0);
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pub const Point = struct { x: f32, y: f32 };
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pub const HexCell = struct { inner_radius: f32, outer_radius: f32, height: f32, width: f32, center: Point };
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pub const HexDirections = enum { top_left, top, top_right, bottom_right, bottom, bottom_left };
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fn calculate_outer_radius(inner_radius: f32) f32 {
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return 2.0 * inner_radius / sqrt_3;
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}
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fn calculate_inner_radius(outer_radius: f32) f32 {
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return outer_radius / 2.0 * sqrt_3;
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}
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pub 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 = 60.0 * i;
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const angle_rad = std.math.degreesToRadians(angle_deg);
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const x_offset: f32 = size * std.math.cos(angle_rad);
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const y_offset: f32 = 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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pub fn new_hex(outer_radius: f32, center: Point) HexCell {
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const size = outer_radius;
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const inner = calculate_inner_radius(size);
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return HexCell{ .inner_radius = inner, .outer_radius = size, .height = sqrt_3 * size, .width = 2 * size, .center = center };
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}
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pub fn add_hex(base: HexCell, direction: HexDirections) HexCell {
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const x_sign: f32 = switch (direction) {
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.bottom_right => 1.0,
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.top_right => 1.0,
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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: f32 = switch (direction) {
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.top => -1,
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.top_left => -0.5,
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.top_right => -0.5,
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.bottom_left => 0.5,
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.bottom_right => 0.5,
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.bottom => 1,
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};
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const x_offset: f32 = x_sign * 1.5 * base.outer_radius;
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const y_offset: f32 = y_sign * base.height;
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return new_hex(base.outer_radius, .{
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.x = base.center.x + x_offset,
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.y = base.center.y + y_offset,
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});
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}
+15
-25
src/main.zig
+15
-25
src/main.zig
···
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const std = @import("std");
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const lib = @import("zig_civ");
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const rl = @import("raylib");
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fn draw_hex(hex: lib.HexCell) void {
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//const center_x: i32 = @intFromFloat(@round(hex.center.x));
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//const center_y: i32 = @intFromFloat(@round(hex.center.y));
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//rl.drawCircle(center_x, center_y, hex.outer_radius, .green);
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//rl.drawCircle(center_x, center_y, hex.inner_radius, .red);
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var corners: [6]lib.Point = undefined;
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fn draw_hex(hex: lib.hex.HexCell) void {
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var corners: [6]lib.hex.Point = undefined;
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for (0..6) |i| {
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const corner = lib.calculate_hex_corners(hex.center, hex.outer_radius, i);
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const corner = lib.hex.calculate_hex_corners(hex.center, hex.outer_radius, i);
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corners[i] = corner;
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//const corner_y: i32 = @intFromFloat(@round(corner.y));
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//const corner_x: i32 = @intFromFloat(@round(corner.x));
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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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const end = corners[@mod(i + 1, 6)];
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std.debug.print("sx: {d} sy: {d} ex:{d} ey:{d}\n", .{ start.x, start.y, end.x, end.y });
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···
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//--------------------------------------------------------------------------------------
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const screenWidth = 800;
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const screenHeight = 450;
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const fps = 60;
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rl.initWindow(screenWidth, screenHeight, "raylib-zig [core] example - basic window");
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rl.initWindow(screenWidth, screenHeight, "raylib.hex-zig [core] example - basic window");
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defer rl.closeWindow(); // Close window and OpenGL context
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rl.setTargetFPS(60); // Set our game to run at 60 frames-per-second
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rl.setTargetFPS(fps); // Set our game to run at 60 frames-per-second
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//--------------------------------------------------------------------------------------
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// Main game loop
···
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//----------------------------------------------------------------------------------
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// TODO: Update your variables here
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//----------------------------------------------------------------------------------
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const cell = lib.new_hex(50.0, .{
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const cell = lib.hex.new_hex(50.0, .{
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.x = screenWidth / 2,
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.y = screenHeight / 2,
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});
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std.debug.print("cell : {}", .{cell});
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const tl = lib.add_hex(cell, .top_left);
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const tr = lib.add_hex(cell, .top_right);
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const t = lib.add_hex(cell, .top);
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const br = lib.add_hex(cell, .bottom_right);
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const bl = lib.add_hex(cell, .bottom_left);
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const b = lib.add_hex(cell, .bottom);
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const tl = lib.hex.add_hex(cell, .top_left);
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const tr = lib.hex.add_hex(cell, .top_right);
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const t = lib.hex.add_hex(cell, .top);
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const br = lib.hex.add_hex(cell, .bottom_right);
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const bl = lib.hex.add_hex(cell, .bottom_left);
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const b = lib.hex.add_hex(cell, .bottom);
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const grid = [_]lib.HexCell{ cell, tl, t, tr, br, b, bl };
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const grid = [_]lib.hex.HexCell{ cell, tl, t, tr, br, b, bl };
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// Draw
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//----------------------------------------------------------------------------------
+1
-59
src/root.zig
+1
-59
src/root.zig
···
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//! By convention, root.zig is the root source file when making a library.
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const std = @import("std");
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const Point = struct { x: f32, y: f32 };
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const HexCell = struct { inner_radius: f32, outer_radius: f32, height: f32, width: f32, center: Point };
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const HexDirections = enum { top_left, top, top_right, bottom_right, bottom, bottom_left };
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const PI = std.math.pi;
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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 = 60.0 * i;
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const angle_rad = std.math.degreesToRadians(angle_deg);
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const x_offset: f32 = size * std.math.cos(angle_rad);
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const y_offset: f32 = 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 add_hex(base: HexCell, direction: HexDirections) HexCell {
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const x_sign: f32 = switch (direction) {
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.bottom_right => 1.0,
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.top_right => 1.0,
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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: f32 = switch (direction) {
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.top => -1,
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.top_left => -0.5,
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.top_right => -0.5,
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.bottom_left => 0.5,
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.bottom_right => 0.5,
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.bottom => 1,
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};
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const x_offset: f32 = x_sign * 1.5 * base.outer_radius;
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const y_offset: f32 = y_sign * base.height;
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return new_hex(base.outer_radius, .{
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.x = base.center.x + x_offset,
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.y = base.center.y + 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(3.0);
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}
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fn calculate_inner_radius(outer_radius: f32) f32 {
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return outer_radius / 2.0 * std.math.sqrt(3.0);
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}
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fn new_hex(outer_radius: f32, center: Point) HexCell {
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const size = outer_radius;
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const inner = calculate_inner_radius(size);
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return HexCell{ .inner_radius = inner, .outer_radius = size, .height = std.math.sqrt(3.0) * size, .width = 2 * size, .center = center };
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}
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pub const hex = @import("hex.zig");