coyote-time

game/anims.go

@@ -42,13 +42,13 @@ func init() {
 				{Frame: 6, Duration: 6},
 				{Frame: 7, Duration: 6},
 				{Frame: 8, Duration: 6},
-				{Frame: 9, Duration: 3},
+				{Frame: 9, Duration: 6},
 			},
 		},
 		"aw_run_right": {
 			Frames: []engine.AnimFrame{
 				{Frame: 10, Duration: 3},
-				{Frame: 11, Duration: 3},
+				{Frame: 11, Duration: 5},
 				{Frame: 12, Duration: 3},
 				{Frame: 13, Duration: 3},
 			},
@@ -56,7 +56,7 @@ func init() {
 		"aw_run_left": {
 			Frames: []engine.AnimFrame{
 				{Frame: 14, Duration: 3},
-				{Frame: 15, Duration: 3},
+				{Frame: 15, Duration: 5},
 				{Frame: 16, Duration: 3},
 				{Frame: 17, Duration: 3},
 			},

game/aw.go

@@ -18,6 +18,7 @@ type Awakeman struct {
 
 	vx, vy      float64
 	facingLeft  bool
+	coyoteTimer int
 
 	animIdleLeft, animIdleRight, animRunLeft, animRunRight *engine.Anim
 }
@@ -27,21 +28,24 @@ func (aw *Awakeman) Update() error {
 		bounceDampen = 0.5
 		gravity      = 0.3
 		jumpVelocity = -3.5
-		runVelocity  = 1.5
+		runVelocity  = 1.4
 	)
 
 	// Standing on something?
 	if aw.CollidesAt(aw.Pos.Add(image.Pt(0, 1))) {
 		// Not falling
 		aw.vy = 0
-		if inpututil.IsKeyJustPressed(ebiten.KeySpace) {
-			// Jump?
-			aw.vy = jumpVelocity
-		}
-		// TODO: coyote-time
+		aw.coyoteTimer = 5
 	} else {
 		// Falling
 		aw.vy += gravity
+		if aw.coyoteTimer > 0 {
+			aw.coyoteTimer--
+		}
+	}
+	if aw.coyoteTimer > 0 && inpututil.IsKeyJustPressed(ebiten.KeySpace) {
+		// Jump
+		aw.vy = jumpVelocity
 	}
 	switch {
 	case ebiten.IsKeyPressed(ebiten.KeyLeft) || ebiten.IsKeyPressed(ebiten.KeyA):