Improve input
Louis Pearson
parent
9527e74e89
commit
6fc70c1279
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@ -0,0 +1,66 @@
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const w4 = @import("wasm4.zig");
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const clearMouse = w4.Mouse{ .x = 0, .y = 0, .buttons = .{ .left = false, .right = false, .middle = false } };
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const clear: u8 = 0x00;
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pub var mouseLast: w4.Mouse = clearMouse;
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pub var gamepad1Last: w4.Gamepad = @bitCast(w4.Gamepad, clear);
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pub var gamepad2Last: w4.Gamepad = @bitCast(w4.Gamepad, clear);
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pub var gamepad3Last: w4.Gamepad = @bitCast(w4.Gamepad, clear);
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pub var gamepad4Last: w4.Gamepad = @bitCast(w4.Gamepad, clear);
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pub var mouseJustPressed: w4.Mouse = clearMouse;
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pub var gamepad1JustPressed: w4.Gamepad = @bitCast(w4.Gamepad, clear);
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pub var gamepad2JustPressed: w4.Gamepad = @bitCast(w4.Gamepad, clear);
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pub var gamepad3JustPressed: w4.Gamepad = @bitCast(w4.Gamepad, clear);
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pub var gamepad4JustPressed: w4.Gamepad = @bitCast(w4.Gamepad, clear);
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pub const Gamepad = enum { one, two, three, four };
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pub const Button = enum { up, down, left, right, one, two };
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pub fn btn(gamepad: Gamepad, button: Button) bool {
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const g = switch (gamepad) {
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.one => w4.GAMEPAD1.*,
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.two => w4.GAMEPAD2.*,
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.three => w4.GAMEPAD3.*,
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.four => w4.GAMEPAD4.*,
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};
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return switch (button) {
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.up => g.button_up,
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.down => g.button_down,
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.left => g.button_left,
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.right => g.button_right,
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.one => g.button_1,
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.two => g.button_2,
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};
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}
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pub fn btnp(gamepad: Gamepad, button: Button) bool {
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const g = switch (gamepad) {
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.one => gamepad1JustPressed,
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.two => gamepad2JustPressed,
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.three => gamepad3JustPressed,
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.four => gamepad4JustPressed,
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};
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return switch (button) {
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.up => g.button_up,
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.down => g.button_down,
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.left => g.button_left,
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.right => g.button_right,
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.one => g.button_1,
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.two => g.button_2,
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};
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}
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pub fn update() void {
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mouseJustPressed.buttons = w4.MOUSE.*.buttons.justPressed(mouseLast.buttons);
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gamepad1JustPressed = w4.GAMEPAD1.*.justPressed(gamepad1Last);
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gamepad2JustPressed = w4.GAMEPAD2.*.justPressed(gamepad2Last);
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gamepad3JustPressed = w4.GAMEPAD3.*.justPressed(gamepad3Last);
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gamepad4JustPressed = w4.GAMEPAD4.*.justPressed(gamepad4Last);
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mouseLast = w4.MOUSE.*;
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gamepad1Last = w4.GAMEPAD1.*;
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gamepad2Last = w4.GAMEPAD2.*;
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gamepad3Last = w4.GAMEPAD3.*;
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gamepad4Last = w4.GAMEPAD4.*;
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}
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45
src/main.zig
45
src/main.zig
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@ -2,6 +2,7 @@ const std = @import("std");
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const w4 = @import("wasm4.zig");
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const ecs = @import("ecs.zig");
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const assets = @import("assets");
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const input = @import("input.zig");
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const Vec2 = std.meta.Vector(2, i32);
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const Vec2f = std.meta.Vector(2, f32);
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@ -67,7 +68,7 @@ const Control = struct {
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const Sprite = struct { offset: Vec2f = Vec2f{ 0, 0 }, size: w4.Vec2, index: usize, flags: w4.BlitFlags };
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const StaticAnim = Anim;
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const ControlAnim = struct { anims: []AnimData, state: Anim };
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const Kinematic = struct { col: AABB };
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const Kinematic = struct { col: AABB, onWall: bool = false, onFloor: bool = false, onCeil: bool = false };
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const Wire = struct { end: Vec2f, grabbed: ?enum { begin, end } = null };
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const Gravity = Vec2f;
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const Component = struct {
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@ -122,10 +123,8 @@ export fn start() void {
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}) catch unreachable;
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for (assets.wire) |wire| {
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// w4.trace("begin {}, end {}", .{ wire[0], wire[1] });
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const begin = Vec2f{ @intToFloat(f32, wire[0][0]), @intToFloat(f32, wire[0][1]) };
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const end = Vec2f{ @intToFloat(f32, wire[1][0]), @intToFloat(f32, wire[1][1]) };
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// w4.trace("{}, {}, begin {d:3.0}, end {d:3.0}", .{ wire[0], wire[1], begin, end });
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const w = Wire{ .end = end };
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_ = world.create(.{
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.pos = begin,
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@ -134,7 +133,6 @@ export fn start() void {
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w4.trace("problem", .{});
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unreachable;
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};
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// w4.trace("{}", .{world.components.items(.wire)[e]});
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}
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}
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@ -144,7 +142,7 @@ export fn update() void {
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world.process(1, &.{ .pos, .lastpos }, velocityProcess);
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world.process(1, &.{ .pos, .gravity }, gravityProcess);
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world.process(1, &.{ .pos, .control }, controlProcess);
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world.process(1, &.{ .pos, .control, .gravity, .kinematic }, controlProcess);
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world.process(1, &.{ .pos, .lastpos, .kinematic }, kinematicProcess);
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world.process(1, &.{ .sprite, .staticAnim }, staticAnimProcess);
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world.process(1, &.{ .sprite, .controlAnim, .control }, controlAnimProcess);
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@ -165,8 +163,7 @@ export fn update() void {
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}
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world.process(1, &.{ .pos, .wire }, wireProcess);
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mouseLast = w4.MOUSE.buttons.left;
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button_1_last = w4.GAMEPAD1.button_1;
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input.update();
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}
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fn distance(a: w4.Vec2, b: w4.Vec2) i32 {
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@ -181,7 +178,7 @@ var mouseLast = false;
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fn wireProcess(_: f32, pos: *Pos, wire: *Wire) void {
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const begin = w4.Vec2{ @floatToInt(i32, pos.*[0]), @floatToInt(i32, pos.*[1]) };
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const end = w4.Vec2{ @floatToInt(i32, wire.end[0]), @floatToInt(i32, wire.end[1]) };
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// if (w4.MOUSE.buttons.left and !mouseLast) w4.trace("pos {}, wire {}, begin {}, end {}", .{ pos.*, wire.end, begin, end });
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w4.DRAW_COLORS.* = 0x0001;
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w4.line(begin, end);
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w4.DRAW_COLORS.* = 0x0031;
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@ -234,22 +231,30 @@ fn controlAnimProcess(_: f32, sprite: *Sprite, anim: *ControlAnim, control: *Con
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anim.state.update(&sprite.index);
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}
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var button_1_last = false;
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fn controlProcess(_: f32, pos: *Pos, control: *Control) void {
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fn controlProcess(_: f32, pos: *Pos, control: *Control, gravity: *Gravity, kinematic: *Kinematic) void {
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var delta = Vec2f{ 0, 0 };
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if (w4.GAMEPAD1.button_1 and !button_1_last) delta[1] -= 23;
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if (w4.GAMEPAD1.button_left) delta[0] -= 1;
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if (w4.GAMEPAD1.button_right) delta[0] += 1;
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if (kinematic.onFloor) {
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if (input.btnp(.one, .one)) delta[1] -= 23;
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if (input.btn(.one, .left)) delta[0] -= 1;
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if (input.btn(.one, .right)) delta[0] += 1;
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if (delta[0] != 0 or delta[1] != 0) {
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control.state = .walk;
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var move = delta * @splat(2, @as(f32, 0.2));
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pos.* += move;
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if (delta[0] > 0) control.facing = .right;
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if (delta[0] < 0) control.facing = .left;
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} else {
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control.state = .stand;
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}
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} else if (kinematic.onWall) {
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if (input.btn(.one, .left) and input.btnp(.one, .one)) delta = Vec2f{ -1, -23 };
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if (input.btn(.one, .right) and input.btnp(.one, .one)) delta = Vec2f{ 1, -23 };
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gravity.* = Vec2f{ 0, 0.01 };
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} else {
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if (w4.GAMEPAD1.button_left) delta[0] -= 1;
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if (w4.GAMEPAD1.button_right) delta[0] += 1;
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gravity.* = Vec2f{ 0, 0.25 };
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}
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var move = delta * @splat(2, @as(f32, 0.2));
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pos.* += move;
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}
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/// pos should be in tile coordinates, not world coordinates
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@ -291,13 +296,21 @@ fn kinematicProcess(_: f32, pos: *Pos, lastpos: *LastPos, kinematic: *Kinematic)
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next[0] = pos.*[0];
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var hcol = level_collide(kinematic.col.addv(next));
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if (hcol.len > 0) {
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kinematic.onWall = true;
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next[0] = lastpos.*[0];
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} else {
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kinematic.onWall = false;
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}
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next[1] = pos.*[1];
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var vcol = level_collide(kinematic.col.addv(next));
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if (vcol.len > 0) {
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if (next[1] > lastpos.*[1]) kinematic.onFloor = true;
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if (next[1] < lastpos.*[1]) kinematic.onCeil = true;
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next[1] = lastpos.*[1];
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} else {
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kinematic.onFloor = false;
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kinematic.onCeil = false;
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}
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pos.* = next;
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@ -131,6 +131,16 @@ pub const Gamepad = packed struct {
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if (@sizeOf(@This()) != @sizeOf(u8)) unreachable;
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}
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pub fn diff(this: @This(), other: @This()) @This() {
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return @bitCast(@This(), @bitCast(u8, this) ^ @bitCast(u8, other));
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}
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pub fn justPressed(this: @This(), last: @This()) @This() {
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const thisbits = @bitCast(u8, this);
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const lastbits = @bitCast(u8, last);
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return @bitCast(@This(), (thisbits ^ lastbits) & thisbits);
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}
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pub fn format(value: @This(), comptime _: []const u8, _: @import("std").fmt.FormatOptions, writer: anytype) !void {
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if (value.button_1) try writer.writeAll("1");
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if (value.button_2) try writer.writeAll("2");
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@ -158,6 +168,14 @@ pub const MouseButtons = packed struct {
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right: bool,
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middle: bool,
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_: u5 = 0,
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pub fn diff(this: @This(), other: @This()) @This() {
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return @bitCast(@This(), @bitCast(u8, this) ^ @bitCast(u8, other));
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}
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pub fn justPressed(this: @This(), last: @This()) @This() {
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const thisbits = @bitCast(u8, this);
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const lastbits = @bitCast(u8, last);
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return @bitCast(@This(), (thisbits ^ lastbits) & thisbits);
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}
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comptime {
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if (@sizeOf(@This()) != @sizeOf(u8)) unreachable;
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}
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