Score rendering

src/Game.zig

@@ -11,6 +11,8 @@ const input = @import("input.zig");
 const Renderer = @import("Game/Renderer.zig");
 const movement = @import("Game/movement.zig");
 
+pub const Score = u64;
+
 const Self = @This();
 
 // Codes to access action list
@@ -36,6 +38,8 @@ held: ?Piece.Type,
 piece: Piece,
 shadow: Piece,
 
+score: Score = 0,
+
 action_list: ActionList = .{
     .right = Action.init(input.game_right, actionRight), // Right
     .left = Action.init(input.game_left, actionLeft), // Left
@@ -70,7 +74,7 @@ pub fn init(renderer: *Renderer.Renderer) Self {
         .timer_left_das = Timer.init(0.2),
         .timer_right_arr = Timer.init(0.05),
         .timer_right_das = Timer.init(0.2),
-        .timer_gravity = Timer.init(0.2),
+        .timer_gravity = Timer.init(0.3),
     };
 
     // Get a piece from the bag
@@ -205,7 +209,7 @@ pub fn tick(self: *Self) State {
         }
     }
 
-    self.grid.clearLines();
+    self.score += self.grid.clearLines();
 
     self.renderer.render(self.*);
 

src/Game/Grid.zig

@@ -30,7 +30,8 @@ pub fn init() Self {
     return self;
 }
 
-pub fn clearLines(self: *Self) void {
+pub fn clearLines(self: *Self) u8 {
+    var ncleared: u8 = 0;
     for (self.cells, 0..) |_, y| {
         for (self.cells[y], 0..) |cell_x, x| {
             if (cell_x.free) {
@@ -42,8 +43,10 @@ pub fn clearLines(self: *Self) void {
                     for (self.cells[1..y], 0..) |_, i| {
                         self.cells[y - i] = self.cells[y - i - 1];
                     }
+                    ncleared += 1;
                 }
             }
         }
     }
+    return ncleared;
 }

src/Game/Renderer.zig

@@ -1,5 +1,4 @@
-const SDL = @import("sdl2");
-
+const std = @import("std");
 const Game = @import("../Game.zig");
 const Bag = @import("Bag.zig");
 const Grid = @import("Grid.zig");
@@ -105,6 +104,7 @@ pub fn render(self: *Self, game: Game) void {
     renderPiece(self, game.shadow);
     renderBag(self, game);
     renderHeld(self, game);
+    renderScore(self, game.score);
 }
 
 pub fn renderPiece(self: *Self, piece: Piece) void {
@@ -130,6 +130,7 @@ pub fn renderGrid(self: *Self, grid: Grid) void {
     const pos_x = self.grid_pos_x;
     const pos_y = self.grid_pos_y;
 
+
     var visible = grid.cells[Grid.buffer..];
     for (visible, 0..) |_, y| {
         for (visible[y], 0..) |_, x| {
@@ -151,3 +152,14 @@ pub fn renderGrid(self: *Self, grid: Grid) void {
         }
     }
 }
+
+pub fn renderScore(self: *Self, score: Game.Score) void {
+
+    const s_size = self.renderer.getOutputSize();
+
+    var buffer: [32]u8 = undefined;
+    var score_string = std.fmt.bufPrintZ(&buffer, "Score: {d:0>16}", .{score}) catch "Score: " ++ "9" ** 16;
+
+    self.renderer.setColor(.{0,0,0,255});
+    self.renderer.drawText(score_string, s_size.width - 400, 50, 20);
+}