Fix mid-air jumping

src/hud/mod.rs

@@ -2,7 +2,6 @@ use wgpu::{CommandEncoder, RenderPipeline, SwapChainTexture};
 
 use crate::{
     render_context::RenderContext,
-    state::PRIMITIVE_STATE,
     vertex::{HudVertex, Vertex},
     world::block::BlockType,
 };
@@ -101,7 +100,15 @@ impl Hud {
                         write_mask: wgpu::ColorWrite::ALL,
                     }],
                 }),
-                primitive: PRIMITIVE_STATE,
+                primitive: wgpu::PrimitiveState {
+                    topology: wgpu::PrimitiveTopology::TriangleList,
+                    strip_index_format: None,
+                    front_face: wgpu::FrontFace::Ccw,
+                    cull_mode: None,
+                    clamp_depth: false,
+                    polygon_mode: wgpu::PolygonMode::Fill,
+                    conservative: false,
+                },
                 depth_stencil: None,
                 multisample: Default::default(),
             })

src/player.rs

@@ -6,6 +6,7 @@ use crate::{aabb::Aabb, render_context::RenderContext, utils, view::View, world:
 
 pub struct Player {
     pub sprinting: bool,
+    pub grounded: bool,
     pub creative: bool,
 
     pub forward_pressed: bool,
@@ -23,13 +24,16 @@ impl Player {
 
         Self {
             sprinting: false,
+            grounded: false,
             creative: false,
-            view,
+
             forward_pressed: false,
             backward_pressed: false,
             left_pressed: false,
             right_pressed: false,
             up_speed: 0.0,
+
+            view,
         }
     }
 
@@ -81,6 +85,9 @@ impl Player {
             }
 
             self.up_speed = 0.0;
+            self.grounded = true;
+        } else {
+            self.grounded = false;
         }
 
         // x component

src/state.rs

@@ -16,16 +16,6 @@ use crate::{
     world::World,
 };
 
-pub const PRIMITIVE_STATE: wgpu::PrimitiveState = wgpu::PrimitiveState {
-    topology: wgpu::PrimitiveTopology::TriangleList,
-    strip_index_format: None,
-    front_face: wgpu::FrontFace::Ccw,
-    cull_mode: None,
-    clamp_depth: false,
-    polygon_mode: wgpu::PolygonMode::Fill,
-    conservative: false,
-};
-
 pub struct State {
     pub window_size: PhysicalSize<u32>,
     pub mouse_grabbed: bool,
@@ -175,11 +165,8 @@ impl State {
                     (false, true) => 0.0,
 
                     // Not creative
-                    (true, false) => {
-                        // TODO Don't allow player to jump in mid-air
-                        0.6
-                    }
-                    (false, false) => self.player.up_speed,
+                    (true, false) if self.player.grounded => 0.6,
+                    _ => self.player.up_speed,
                 };
             }
             VirtualKeyCode::LShift if self.player.creative => {