116 lines
3.3 KiB
Zig
116 lines
3.3 KiB
Zig
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const SDL = @import("sdl2");
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const std = @import("std");
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const Color = @import("color.zig");
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const Self = @This();
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pub const Type = enum {
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o,
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i,
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l,
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j,
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s,
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z,
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t,
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};
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// Positions relative to a grid
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row: i32,
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col: i32,
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structure: [4][4]bool,
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color: SDL.SDL_Color,
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pub fn init(piece_type: Type) Self {
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return Self{
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.row = 0,
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.col = 0,
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.structure = switch (piece_type) {
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Type.o => .{
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.{ false, false, false, false },
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.{ false, true, true, false },
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.{ false, true, true, false },
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.{ false, false, false, false },
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},
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Type.i => .{
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.{ false, false, false, false },
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.{ true, true, true, true },
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.{ false, false, false, false },
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.{ false, false, false, false },
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},
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Type.l => .{
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.{ false, false, true, false },
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.{ true, true, true, false },
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.{ false, false, false, false },
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.{ false, false, false, false },
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},
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Type.j => .{
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.{ true, false, false, false },
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.{ true, true, true, false },
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.{ false, false, false, false },
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.{ false, false, false, false },
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},
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Type.s => .{
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.{ false, true, true, false },
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.{ true, true, false, false },
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.{ false, false, false, false },
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.{ false, false, false, false },
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},
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Type.z => .{
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.{ true, true, false, false },
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.{ false, true, true, false },
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.{ false, false, false, false },
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.{ false, false, false, false },
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},
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Type.t => .{
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.{ false, true, false, false },
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.{ true, true, true, false },
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.{ false, false, false, false },
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.{ false, false, false, false },
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},
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},
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.color = switch (piece_type) {
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Type.o => Color.yellow,
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Type.i => Color.cyan,
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Type.l => Color.orange,
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Type.j => Color.blue,
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Type.s => Color.green,
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Type.z => Color.red,
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Type.t => Color.purple,
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},
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};
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}
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pub fn render(self: Self, renderer: *SDL.SDL_Renderer, cell_size: i32, pos_x: i32, pos_y: i32) void {
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var rect = SDL.SDL_Rect{
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.x = pos_x,
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.y = pos_y,
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.w = cell_size,
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.h = cell_size,
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};
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for (self.structure) |_, y| {
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for (self.structure[y]) |_, x| {
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// We don't want to paint void cells
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if (self.structure[y][x] == false) {
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continue;
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}
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var r = self.color.r;
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var g = self.color.g;
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var b = self.color.b;
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var a = self.color.a;
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rect.x = pos_x + (@intCast(i32, x) + self.col) * cell_size;
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rect.y = pos_y + (@intCast(i32, y) + self.row) * cell_size;
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_ = SDL.SDL_SetRenderDrawColor(renderer, r, g, b, a);
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_ = SDL.SDL_RenderFillRect(renderer, &rect);
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_ = SDL.SDL_SetRenderDrawColor(renderer, r -| 30, g -| 30, b -| 30, 0xFF);
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_ = SDL.SDL_RenderDrawRect(renderer, &rect);
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}
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}
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}
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