0458-Bomb-道具和效果

环境

• Time 2024-03-22
• Zig 0.12.0-dev.3152+90c1a2c41
• WSL-Ubuntu 22.04.3 LTS
• raylib 5.0

前言

说明

参考资料：

1. 《游戏开发：世嘉新人培训教材》
2. 图片素材：https://www.ituring.com.cn/book/1742

目标

实现道具的获取和增加道具功能。

player.zig

增加了道具的数量和长度的变量。

const std = @import("std");
const engine = @import("../engine.zig");
const core = @import("core.zig");const speedUnit = 1000;pub const Player = struct {x: usize,y: usize,bombNumber: usize = 0,maxBombNumber: usize = 1,maxBombLength: usize = 1,type: core.MapType,pub fn genEnemy(x: usize, y: usize) Player {return init(x, y, .enemy);}pub fn genPlayer(x: usize, y: usize) Player {return init(x, y, .player1);}fn init(x: usize, y: usize, t: core.MapType) Player {return Player{.x = x * core.getMapUnit() * speedUnit,.y = y * core.getMapUnit() * speedUnit,.type = t,};}pub fn getCell(self: Player) engine.Vector {const unit = core.getMapUnit();return .{.x = (self.x / speedUnit + (unit / 2)) / unit,.y = (self.y / speedUnit + (unit / 2)) / unit,};}pub fn draw(self: Player) void {const x = self.x / speedUnit;core.drawXY(self.type, x, self.y / speedUnit);}pub fn toCollisionRec(self: Player) engine.Rectangle {return engine.Rectangle{.x = self.x / speedUnit + 5,.y = self.y / speedUnit + 5,.width = core.getMapUnit() - 10,.height = core.getMapUnit() - 7,};}
};

map.zig

增加了获取道具的功能。

    pub fn update(self: *Map) void {const pos = self.player1().getCell();const mapUnit = self.world.indexRef(pos.x, pos.y);if (mapUnit.contains(.item)) {mapUnit.remove(.item);self.player1().maxBombNumber += 1;}if (mapUnit.contains(.power)) {self.player1().maxBombLength += 1;mapUnit.remove(.power);}self.world.update();}

world.zig

重新实现了道具的效果，具有加长的功能。

    fn explosion(self: *World, mapUnit: *core.MapUnit, idx: usize) void {const time = engine.time();mapUnit.remove(.bomb);mapUnit.insertTimedType(.explosion, time);// 左self.explosionLeft(time, idx);// 右self.explosionRight(time, idx);// 上self.explosionUp(time, idx);// 下self.explosionDown(time, idx);}fn explosionLeft(self: *World, time: usize, idx: usize) void {for (1..self.player1().maxBombLength + 1) |i| {const mapUnit = &self.data[idx -| i];if (mapUnit.contains(.wall)) return;if (mapUnit.contains(.brick)) mapUnit.remove(.brick);mapUnit.insertTimedType(.fireX, time);}}fn explosionRight(self: *World, time: usize, idx: usize) void {for (1..self.player1().maxBombLength + 1) |i| {const mapUnit = &self.data[idx + i];if (mapUnit.contains(.wall)) return;if (mapUnit.contains(.brick)) mapUnit.remove(.brick);mapUnit.insertTimedType(.fireX, time);}}fn explosionUp(self: *World, time: usize, idx: usize) void {for (1..self.player1().maxBombLength + 1) |i| {const mapUnit = &self.data[idx -| (self.width * i)];if (mapUnit.contains(.wall)) return;if (mapUnit.contains(.brick)) mapUnit.remove(.brick);mapUnit.insertTimedType(.fireY, time);}}fn explosionDown(self: *World, time: usize, idx: usize) void {for (1..self.player1().maxBombLength + 1) |i| {const mapUnit = &self.data[idx + (self.width * i)];if (mapUnit.contains(.wall)) return;if (mapUnit.contains(.brick)) mapUnit.remove(.brick);mapUnit.insertTimedType(.fireY, time);}}

效果

总结

实现了道具的获取，并且增加玩家获取道具的功能。

附录