feat: use framebuffer size to choose sprite set
Using multiple sizes of sprites will hopefully make porting the game to a wider range of devices easier.dev
parent
15e1670ec3
commit
755518bb5d
192
src/main.zig
192
src/main.zig
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@ -54,9 +54,10 @@ const TileSheet = struct {
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@floatFromInt(this.tile_size[0]),
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@floatFromInt(this.tile_size[1]),
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};
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// add a half to round up
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const size_in_tiles = [2]u32{
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@as(u32, @intCast(this.texture.size[0])) / this.tile_size[0],
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@as(u32, @intCast(this.texture.size[1])) / this.tile_size[1],
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(@as(u32, @intCast(this.texture.size[0])) + (this.tile_size[0] / 2)) / this.tile_size[0],
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(@as(u32, @intCast(this.texture.size[1])) + (this.tile_size[1] / 2)) / this.tile_size[1],
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};
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const pos_in_tiles = [2]u32{
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tile_id % size_in_tiles[0],
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@ -76,14 +77,30 @@ const TileSheet = struct {
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((pos_in_tilesf[1] + 1) * tile_sizef[1]) / texture_sizef[1],
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},
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};
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_ = canvas.printText(.{ 0, 0 }, "uv = {}", .{uv}, .{});
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canvas.rect(pos, options.size orelse tile_sizef, .{
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.texture = this.texture.glTexture,
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.uv = uv,
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});
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}
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};
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// const cards_medium_spritesheet =
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/// A texture with a regular grid of sprites
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const DeckSprites = struct {
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tilesheet: TileSheet,
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/// Return the tile index for a given card,
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mapping: std.AutoHashMapUnmanaged(Card, u32),
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blank: u32,
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back: u32,
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pub fn deinit(this: *@This(), gpa: std.mem.Allocator) void {
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this.tilesheet.deinit();
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this.mapping.deinit(gpa);
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}
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pub fn getTileForCard(this: @This(), card: Card) u32 {
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return this.mapping.get(card) orelse 0;
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}
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};
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pub fn main() !void {
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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@ -118,16 +135,11 @@ pub fn main() !void {
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// Set up input callbacks
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_ = seizer.backend.glfw.c.glfwSetFramebufferSizeCallback(window, &glfw_framebuffer_size_callback);
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var card_tilemap = try TileSheet.init(.{
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.allocator = gpa.allocator(),
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.image_file_contents = @embedFile("./cardsMedium_tilemap.png"),
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.tile_size = .{ 32, 32 },
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.texture_options = .{
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.min_filter = .nearest,
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.mag_filter = .nearest,
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},
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});
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defer card_tilemap.deinit();
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var card_tilemap_medium: ?DeckSprites = null;
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defer if (card_tilemap_medium) |*tilemap| tilemap.deinit(gpa.allocator());
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var card_tilemap_large: ?DeckSprites = null;
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defer if (card_tilemap_large) |*tilemap| tilemap.deinit(gpa.allocator());
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var canvas = try seizer.Canvas.init(gpa.allocator(), .{});
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defer canvas.deinit(gpa.allocator());
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@ -154,19 +166,157 @@ pub fn main() !void {
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@floatFromInt(framebuffer_size[1]),
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},
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});
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card_tilemap.renderTile(&canvas, 1, .{ 10, 10 }, .{});
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// canvas.rect(.{ 10, 10 }, .{ @as(f32, @floatFromInt(card_tilemap.size[0])) / 15.0, @as(f32, @floatFromInt(card_tilemap.size[1])) / 10.0 }, .{
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// .texture = card_tilemap.glTexture,
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// .uv = .{ .min = .{ 0, 0 }, .max = .{ 1.0 / 15.0, 1.0 / 10.0 } },
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// });
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_ = canvas.writeText(.{ 50, 50 }, "Hello, world!", .{});
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_ = canvas.printText(.{ 50, 100 }, "window_size = {}, {}\nframebuffer_size = {}, {}", .{ window_size[0], window_size[1], framebuffer_size[0], framebuffer_size[1] }, .{});
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const render_large = framebuffer_size[1] > 1000;
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if (render_large) {
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if (card_tilemap_large == null) {
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card_tilemap_large = try loadLargeCards(gpa.allocator());
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}
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} else {
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if (card_tilemap_medium == null) {
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card_tilemap_medium = try loadMediumCards(gpa.allocator());
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}
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}
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const deck_sprites = if (framebuffer_size[1] > 1000) card_tilemap_large.? else card_tilemap_medium.?;
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for (0..4) |suit| {
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for (1..14) |rank| {
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const card = Card{ .suit = @enumFromInt(suit), .rank = @intCast(rank) };
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const tile_index = deck_sprites.getTileForCard(card);
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deck_sprites.tilesheet.renderTile(&canvas, @intCast(tile_index), .{
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@floatFromInt(rank * deck_sprites.tilesheet.tile_size[0]),
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@floatFromInt(suit * deck_sprites.tilesheet.tile_size[1]),
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}, .{});
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}
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}
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deck_sprites.tilesheet.renderTile(&canvas, deck_sprites.blank, .{
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@floatFromInt(1 * deck_sprites.tilesheet.tile_size[0]),
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@floatFromInt(5 * deck_sprites.tilesheet.tile_size[1]),
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}, .{});
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deck_sprites.tilesheet.renderTile(&canvas, deck_sprites.back, .{
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@floatFromInt(2 * deck_sprites.tilesheet.tile_size[0]),
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@floatFromInt(5 * deck_sprites.tilesheet.tile_size[1]),
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}, .{});
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canvas.end();
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seizer.backend.glfw.c.glfwSwapBuffers(window);
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}
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}
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fn loadMediumCards(gpa: std.mem.Allocator) !DeckSprites {
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var tilesheet = try TileSheet.init(.{
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.allocator = gpa,
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.image_file_contents = @embedFile("./cardsMedium_tilemap.png"),
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.tile_size = .{ 33, 33 },
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.texture_options = .{
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.min_filter = .nearest,
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.mag_filter = .nearest,
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},
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});
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errdefer tilesheet.deinit();
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var mapping = std.AutoHashMap(Card, u32).init(gpa);
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errdefer mapping.deinit();
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try mapping.ensureTotalCapacity(52);
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const hearts_start_index: u32 = 0;
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for (0..13) |rank| {
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mapping.putAssumeCapacityNoClobber(
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Card{ .suit = .hearts, .rank = @intCast(rank + 1) },
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hearts_start_index + @as(u32, @intCast(rank)),
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);
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}
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const diamonds_start_index: u32 = 15;
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for (0..13) |rank| {
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mapping.putAssumeCapacityNoClobber(
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Card{ .suit = .diamonds, .rank = @intCast(rank + 1) },
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diamonds_start_index + @as(u32, @intCast(rank)),
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);
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}
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const clubs_start_index: u32 = 30;
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for (0..13) |rank| {
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mapping.putAssumeCapacityNoClobber(
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Card{ .suit = .clubs, .rank = @intCast(rank + 1) },
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clubs_start_index + @as(u32, @intCast(rank)),
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);
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}
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const spades_start_index: u32 = 45;
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for (0..13) |rank| {
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mapping.putAssumeCapacityNoClobber(
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Card{ .suit = .spades, .rank = @intCast(rank + 1) },
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spades_start_index + @as(u32, @intCast(rank)),
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);
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}
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return DeckSprites{
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.tilesheet = tilesheet,
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.mapping = mapping.unmanaged,
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.blank = 14,
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.back = 29,
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};
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}
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fn loadLargeCards(gpa: std.mem.Allocator) !DeckSprites {
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var tilesheet = try TileSheet.init(.{
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.allocator = gpa,
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.image_file_contents = @embedFile("./cardsLarge_tilemap.png"),
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.tile_size = .{ 65, 65 },
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.texture_options = .{
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.min_filter = .nearest,
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.mag_filter = .nearest,
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},
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});
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errdefer tilesheet.deinit();
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var mapping = std.AutoHashMap(Card, u32).init(gpa);
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errdefer mapping.deinit();
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try mapping.ensureTotalCapacity(52);
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const hearts_start_index: u32 = 0;
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for (0..13) |rank| {
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mapping.putAssumeCapacityNoClobber(
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Card{ .suit = .hearts, .rank = @intCast(rank + 1) },
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hearts_start_index + @as(u32, @intCast(rank)),
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);
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}
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const diamonds_start_index: u32 = 14;
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for (0..13) |rank| {
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mapping.putAssumeCapacityNoClobber(
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Card{ .suit = .diamonds, .rank = @intCast(rank + 1) },
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diamonds_start_index + @as(u32, @intCast(rank)),
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);
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}
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const clubs_start_index: u32 = 28;
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for (0..13) |rank| {
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mapping.putAssumeCapacityNoClobber(
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Card{ .suit = .clubs, .rank = @intCast(rank + 1) },
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clubs_start_index + @as(u32, @intCast(rank)),
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);
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}
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const spades_start_index: u32 = 42;
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for (0..13) |rank| {
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mapping.putAssumeCapacityNoClobber(
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Card{ .suit = .spades, .rank = @intCast(rank + 1) },
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spades_start_index + @as(u32, @intCast(rank)),
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);
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}
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return DeckSprites{
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.tilesheet = tilesheet,
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.mapping = mapping.unmanaged,
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.blank = 13,
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.back = 27,
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};
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}
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fn glfw_framebuffer_size_callback(window: ?*seizer.backend.glfw.c.GLFWwindow, width: c_int, height: c_int) callconv(.C) void {
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_ = window;
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gl.viewport(
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