time-related brightness controlled by light-map

src/App.vue

@@ -11,13 +11,13 @@ import useInput from './util/useInput'
 import usePlayer from './util/usePlayer'
 import useLightMap from './util/useLightMap'
 
-const { updateTime, time, clock } = useTime()
+const { updateTime, time, timeOfDay, clock } = useTime()
 const { player, direction, dx, dy } = usePlayer()
 const { inputX, inputY, running, paused, help, inventory } = useInput()
 const level = createLevel(STAGE_WIDTH + 2, STAGE_HEIGHT + 2)
 
 const lightMapEl = ref<HTMLCanvasElement | undefined>(undefined)
-let lightMap: ReturnType<typeof useLightMap>
+let updateLightMap: ReturnType<typeof useLightMap>
 
 player.inventory.push(
   { name: 'Shovel', type: 'tool', icon: 'shovel', quality: 'bronze', amount: 1 },
@@ -144,7 +144,7 @@ const move = (thisTick: number): void => {
     y.value += dy_ * fallMultiplier
   }
 
-  lightMap.draw(floorX.value, floorY.value, tx.value, ty.value, time.value)
+  updateLightMap()
   lastTick = thisTick
 }
 
@@ -171,14 +171,14 @@ onMounted(() => {
   canvas.width = (BLOCK_SIZE + 2) * STAGE_WIDTH
   const ctx = canvas.getContext('2d')!
 
-  lightMap = useLightMap(ctx)
+  updateLightMap = useLightMap(ctx, floorX, floorY, tx, ty, time, lightBarrier)
   lastTick = performance.now()
   move(lastTick)
 })
 </script>
 
 <template>
-  <div id="field">
+  <div id="field" :class="timeOfDay">
 
     <div id="blocks" :style="{transform: `translate(${tx}px, ${ty}px)`}">
       <template v-for="(row, y) in rows">

src/assets/field.css

@@ -1,3 +1,6 @@
+.block, #player {
+  transition: filter .5s linear;
+}
 .block {
   flex: 0 0 auto;
   width: var(--block-size);
@@ -42,44 +45,15 @@
 .block.cave         { background-color: #000; }
 #field .block:hover { outline: 1px solid white; z-index: 10; }
 
-.block.sun-3 { filter: brightness(1.0); }
-.block.sun-2 { filter: brightness(0.4); }
-.block.sun-1 { filter: brightness(0.2); }
-.block.sun-0 { filter: brightness(0.0); }
-
-.morning0 .block, .morning0 #player {filter: saturate(50%) brightness(0.6) hue-rotate(-10deg); }
-.morning1 .block, .morning1 #player { filter: saturate(100%) brightness(0.8) hue-rotate(-20deg); }
-.morning2 .block, .morning2 #player { filter: saturate(200%) hue-rotate(-30deg); }
-
-.morning0 .block.sun-2 { filter: brightness(0); }
-.morning1 .block.sun-2 { filter: saturate(100%) brightness(0.2) hue-rotate(-20deg); }
-.morning2 .block.sun-2 { filter: saturate(200%) brightness(0.4) hue-rotate(-30deg); }
-
-.morning0 .block.sun-1,
-.morning1 .block.sun-1 { filter: brightness(0); }
-.morning2 .block.sun-1 { filter: saturate(200%) brightness(0.2) hue-rotate(-30deg); }
-
-.evening0 .block, .evening0 #player { filter: brightness(0.8) hue-rotate(-10deg); }
-.evening1 .block, .evening1 #player { filter: brightness(0.6) hue-rotate(-20deg); }
-.evening2 .block, .evening2 #player { filter: brightness(0.4) hue-rotate(-10deg) saturate(50%); }
-
-.evening0 .block.sun-2 { filter: brightness(0.3) hue-rotate(-10deg); }
-.evening1 .block.sun-2 { filter: brightness(0.2) hue-rotate(-20deg); }
-.evening2 .block.sun-2 { filter: brightness(0); }
-
-.evening0 .block.sun-1 { filter: brightness(0.2) hue-rotate(-10deg); }
-.evening1 .block.sun-1, .evening2 .block.sun-1 { filter: brightness(0); }
+.morning0 .block, .morning0 #player {filter: saturate(50%); }
+.morning1 .block, .morning1 #player { filter: saturate(100%); }
+.morning2 .block, .morning2 #player { filter: saturate(120%); }
 
-.night .block, .night #player { filter: brightness(0.3) saturate(30%); }
+.evening0 .block, .evening0 #player { filter: saturate(90%); }
+.evening1 .block, .evening1 #player { filter: saturate(70%); }
+.evening2 .block, .evening2 #player { filter: saturate(50%); }
 
-.block.sun-0,
-.morning0 .block.sun-0,
-.morning1 .block.sun-0,
-.morning2 .block.sun-0,
-.evening0 .block.sun-0,
-.evening1 .block.sun-0,
-.evening2 .block.sun-0,
-.night .block.sun-0 { filter: brightness(0); }
+.night .block, .night #player { filter: saturate(30%); }
 
 #blocks {
   position: absolute;
@@ -98,4 +72,5 @@
   width: calc(100% + var(--block-size) * 2);
   height: calc(100% + var(--block-size) * 2);
   mix-blend-mode: multiply;
+  pointer-events: none;
 }

src/level/def.ts

@@ -13,6 +13,7 @@ export type Block = {
   walkable: boolean,
   climbable?: boolean,
   transparent?: boolean,
+  illuminated?: boolean,
 }
 
 export type BlockType =
@@ -22,7 +23,7 @@ export type BlockType =
   | 'bedrock' | 'cave'
 
 export const blockTypes: Record<BlockType, Block> = {
-  air: { type: 'air', hp: Infinity, walkable: true, transparent: true },
+  air: { type: 'air', hp: Infinity, walkable: true, transparent: true, illuminated: true },
   grass: { type: 'grass', hp: 5, walkable: false },
 
   treeCrown: { type: 'treeCrown', hp: 1, walkable: true, transparent: true },

src/util/useLightMap.ts

@@ -1,6 +1,15 @@
+import type { ComputedRef } from 'vue'
 import { BLOCK_SIZE, STAGE_WIDTH, STAGE_HEIGHT } from '../level/def'
 
-export default function useLightMap(ctx: CanvasRenderingContext2D) {
+export default function useLightMap(
+  ctx: CanvasRenderingContext2D,
+  x: ComputedRef<number>,
+  y: ComputedRef<number>,
+  tx: ComputedRef<number>,
+  ty: ComputedRef<number>,
+  time: ComputedRef<number>,
+  lightBarrier: ComputedRef<number>,
+) {
   const W = ((STAGE_WIDTH + 2) * BLOCK_SIZE)
   const H = ((STAGE_HEIGHT + 2) * BLOCK_SIZE)
 
@@ -8,15 +17,15 @@ export default function useLightMap(ctx: CanvasRenderingContext2D) {
   const playerY = H / 2 - BLOCK_SIZE / 2
   const playerLightSize = BLOCK_SIZE * 1.8
 
-  function drawPlayerLight(tx: number, ty: number) {
+  function drawPlayerLight(sizeMul:number) {
     const playerLight = ctx.createRadialGradient(
-      playerX - tx, playerY - ty, 0,
-      playerX - tx, playerY - ty, playerLightSize
+      playerX - tx.value, playerY - ty.value, 0,
+      playerX - tx.value, playerY - ty.value, playerLightSize * sizeMul
     )
 
     // Add three color stops
-    playerLight.addColorStop(0.0, "#FFCF");
-    playerLight.addColorStop(1, "#FFC0");
+    playerLight.addColorStop(0.0, "#FFFF");
+    playerLight.addColorStop(1, "#FFF0");
 
     // Set the fill style and draw a rectangle
     ctx.fillStyle = playerLight;
@@ -24,21 +33,22 @@ export default function useLightMap(ctx: CanvasRenderingContext2D) {
   }
 
   // TODO: support light barrier
-  function draw(x:number, y:number, tx:number, ty:number, time:number) {
-    if (time > 900 || time < 100) {
+  return function update() {
+    const t = time.value
+
+    if (t > 900 || t < 100) {
       ctx.fillStyle = `hsl(0, 0%, 20%)`
-    } else if (time < 250) {
-      const s = Math.round((time - 100) / 1.5) // 0-100%
-      const l = Math.round((time - 100) / 1.875) + 20 // 20-100%
+    } else if (t < 250) {
+      const s = Math.round((t - 100) / 1.5) // 0-100%
+      const l = Math.round((t - 100) / 1.875) + 20 // 20-100%
       ctx.fillStyle = `hsl(0, ${s}%, ${l}%)`
-    // } else if (t < 700) {
-    //   ctx.fillStyle = `hsl(0, ${}%, ${}%)`
+    } else if (t > 700) {
+      const s = 100 - Math.round((t - 700) / 2.5) // 100-20%
+      ctx.fillStyle = `hsl(245, ${s}%, ${s}%)`
     } else {
       ctx.fillStyle = `hsl(0, 0%, 100%)`
     }
     ctx.fillRect(0, 0, W, H)
-    drawPlayerLight(tx, ty)
+    drawPlayerLight(1)
   }
-
-  return { draw }
 }

src/util/useTime.ts

@@ -2,7 +2,7 @@ import { ref, computed } from 'vue'
 
 export default function useTime() {
   // the day is split in 1000 parts, so we start in the morning
-  const time = ref(250)
+  const time = ref(230)
 
   function updateTime() {
     time.value = (time.value + 0.1) % 1000