From 77b552a310cba013c2d5fa813217b86b9e84f0eb Mon Sep 17 00:00:00 2001
From: robonen <robonenandrew@gmail.com>
Date: Sun, 27 Nov 2022 08:23:17 +0700
Subject: [PATCH] feat(engine): all figures and transformations ready

---
 src/components/board.vue                      | 210 +++++++++++++-----
 src/components/form/range.vue                 |   4 +-
 src/composables/useFigure.ts                  |  20 ++
 .../{states.ts => useTransformations.ts}      |  27 ++-
 src/layouts/default.vue                       |   2 +-
 src/pages/figure.vue                          |  40 +++-
 src/pages/index.vue                           |  28 ++-
 7 files changed, 262 insertions(+), 69 deletions(-)
 create mode 100644 src/composables/useFigure.ts
 rename src/composables/{states.ts => useTransformations.ts} (55%)

diff --git a/src/components/board.vue b/src/components/board.vue
index 6fa0d0a..2b44346 100644
--- a/src/components/board.vue
+++ b/src/components/board.vue
@@ -21,48 +21,117 @@ onMounted(() => {
   const centerX = sizeX / 2;
   const centerY = sizeY / 2;
 
-  const figureSizeH = 200;
-  const figureSizeW = 200;
+  const figureSize = 200;
 
-  const points: Point[] = [
-    [0, 0, figureSizeH, 1],
-    [0, 100, 0, 1],
-    [95.1, 30.9, 0, 1],
-    [58.8, -80.9, 0, 1],
-    [-58.8, -80.9, 0, 1],
-    [-95.1, 30.9, 0, 1],
+  const figureList = {
+    [Figures.CUBE]: {
+      points: [
+        [0, 0, 0, 1],
+        [0, 0, 200, 1],
+        [0, 200, 0, 1],
+        [0, 200, 200, 1],
+        [200, 0, 0, 1],
+        [200, 0, 200, 1],
+        [200, 200, 0, 1],
+        [200, 200, 200, 1],
+      ] as Point[],
+      faces: [
+        [0, 1, 3, 2],
+        [0, 1, 5, 4],
+        [0, 2, 6, 4],
+        [1, 3, 7, 5],
+        [2, 3, 7, 6],
+        [4, 5, 7, 6],
+      ],
+    },
+
+    [Figures.OCTAHEDRON]: {
+      points: [
+        [0, 0, 100, 1],
+        [100, 100, 0, 1],
+        [100, -100, 0, 1],
+        [-100, -100, 0, 1],
+        [-100, 100, 0, 1],
+        [0, 0, -100, 1],
+      ] as Point[],
+      faces: [
+        [0, 1, 2],
+        [0, 2, 3],
+        [0, 3, 4],
+        [0, 4, 1],
+        [5, 1, 2],
+        [5, 2, 3],
+        [5, 3, 4],
+        [5, 4, 1],
+      ],
+    },
+
+    [Figures.TRIHEDRAL_PYRAMID]: {
+      points: [
+        [0, 0, 100, 1],
+        [0, 80, 0, 1],
+        [86.6, -50, 0, 1],
+        [-86.6, -50, 0, 1],
+      ] as Point[],
+      faces: [
+        [0, 1, 2],
+        [0, 2, 3],
+        [0, 3, 1],
+        [1, 2, 3],
+      ],
+    },
+
+    [Figures.SQUARE_PYRAMID]: {
+      points: [
+        [0, 0, figureSize, 1],
+        [100, 100, 0, 1],
+        [100, -100, 0, 1],
+        [-100, -100, 0, 1],
+        [-100, 100, 0, 1],
+      ] as Point[],
+      faces: [
+        [0, 1, 2],
+        [0, 2, 3],
+        [0, 3, 4],
+        [0, 4, 1],
+        [1, 2, 3, 4],
+      ],
+    },
+
+    [Figures.PENTAGONAL_PYRAMID]: {
+      points: [
+        [0, 0, figureSize, 1],
+        [0, 100, 0, 1],
+        [95.1, 30.9, 0, 1],
+        [58.8, -80.9, 0, 1],
+        [-58.8, -80.9, 0, 1],
+        [-95.1, 30.9, 0, 1],
+      ] as Point[],
+      faces: [
+        [0, 1, 2],
+        [0, 2, 3],
+        [0, 3, 4],
+        [0, 4, 5],
+        [0, 5, 1],
+        [1, 2, 3, 4, 5],
+      ],
+    },
+  };
+
+  const identityMatrix: Point[] = [
+    [1, 0, 0, 0],
+    [0, 1, 0, 0],
+    [0, 0, 1, 0],
+    [0, 0, 0, 1],
   ];
 
-  const faces = [
-    [0, 1, 2],
-    [0, 2, 3],
-    [0, 3, 4],
-    [0, 4, 5],
-    [0, 5, 1],
-    [1, 2, 3, 4, 5],
+  const translationMatrix: Point[] = [
+    [1, 0, 0, 0],
+    [0, -1, 0, 0],
+    [0, 0, 1, 0],
+    [centerX, centerY, 0, 1],
   ];
 
-  // Cube
-  // const points: Point[] = [
-  //   [0, 0, 0, 1],
-  //   [0, 0, 100, 1],
-  //   [0, 100, 0, 1],
-  //   [0, 100, 100, 1],
-  //   [100, 0, 0, 1],
-  //   [100, 0, 100, 1],
-  //   [100, 100, 0, 1],
-  //   [100, 100, 100, 1],
-  // ];
-  //
-  // const faces = [
-  //   [0, 1, 3, 2],
-  //   [0, 1, 5, 4],
-  //   [0, 2, 6, 4],
-  //   [1, 3, 7, 5],
-  //   [2, 3, 7, 6],
-  //   [4, 5, 7, 6],
-  // ];
-
   // Rotate around X axis
   const rotateX = (angle: number): Point[] => {
     const rad = (angle * Math.PI) / 180;
@@ -129,13 +198,43 @@ onMounted(() => {
     ];
   };
 
-  const axonometryIsometric = (): Point[] => {
-    return [
+  const projections = {
+    [Projections.NONE]: (): Point[] => identityMatrix,
+
+    [Projections.ISOMETRIC]: (): Point[] => [
       [0.707, -0.408, 0, 0],
       [0, 0.816, 0, 0],
       [-0.707, -0.408, 1, 0],
       [0, 0, 0, 1],
-    ];
+    ],
+
+    [Projections.DIMETRIC]: (): Point[] => [
+      [0.926, 0.134, 0, 0],
+      [0, 0.935, 0, 0],
+      [0.378, -0.327, 0, 0],
+      [0, 0, 0, 1],
+    ],
+
+    [Projections.TRIMETRIC]: (): Point[] => [
+      [0.866, 0.354, 0, 0],
+      [0, 0.707, 0, 0],
+      [0.5, -0.612, 0, 0],
+      [0, 0, 0, 1],
+    ],
+
+    [Projections.ONE_POINT_PERSPECTIVE]: (): Point[] => [
+      [1, 0, 0, 0],
+      [0, 1, 0, 0],
+      [0, 0, 0, 0.001],
+      [0, 0, 0, 1],
+    ],
+
+    [Projections.TWO_POINT_PERSPECTIVE]: (): Point[] => [
+      [1, 0, 0, 0.001],
+      [0, 1, 0, 0.001],
+      [0, 0, 0, 0],
+      [0, 0, 0, 1],
+    ],
   };
 
   // Multiply array of points by matrix
@@ -193,18 +292,27 @@ onMounted(() => {
     }
   };
 
-  useTransformations((translation, rotation, scale) => {
+  const { currentFigure } = useFigure();
+
+  useTransformations((translation, rotation, scale, prj) => {
+    const matrix = mul([
+      figureList[currentFigure.value].points,
+      scaleMatrix(scale[0], scale[1], scale[2]),
+      rotate(rotation[0], rotation[1], rotation[2]),
+      translate(translation[0], translation[1], translation[2]),
+      projections[prj](),
+    ]);
+
+    for (let i = 0; i < matrix.length; i++) {
+      matrix[i][0] = matrix[i][0] / matrix[i][3];
+      matrix[i][1] = matrix[i][1] / matrix[i][3];
+      matrix[i][2] = matrix[i][2] / matrix[i][3];
+      matrix[i][3] = 1;
+    }
+
     drawFigure(
-      mul([
-        points,
-        scaleMatrix(scale[0], scale[1], scale[2]),
-        rotate(rotation[0], rotation[1], rotation[2]),
-        translate(translation[0], translation[1], translation[2]),
-        rotateX(-90),
-        axonometryIsometric(),
-        translate(centerX, centerY + figureSizeH / 2, 0),
-      ]),
-      faces
+      mul([matrix, translationMatrix]),
+      figureList[currentFigure.value].faces
     );
   });
 });
diff --git a/src/components/form/range.vue b/src/components/form/range.vue
index 9fa12dd..f68149e 100644
--- a/src/components/form/range.vue
+++ b/src/components/form/range.vue
@@ -5,12 +5,14 @@ const {
   label,
   min,
   max,
+  currentValue,
   defaultValue,
   step = 0.1,
 } = defineProps<{
   label: string;
   min: number;
   max: number;
+  currentValue: number;
   defaultValue: number;
   step?: number;
 }>();
@@ -19,7 +21,7 @@ const emit = defineEmits<{
   (event: 'change', value: number): void;
 }>();
 
-const value = ref<number>(defaultValue);
+const value = ref<number>(currentValue);
 
 const onChange = (event: Event) => {
   const { target } = event as HTMLElementEvent<HTMLInputElement>;
diff --git a/src/composables/useFigure.ts b/src/composables/useFigure.ts
new file mode 100644
index 0000000..d4ae7c4
--- /dev/null
+++ b/src/composables/useFigure.ts
@@ -0,0 +1,20 @@
+export const enum Figures {
+  CUBE,
+  OCTAHEDRON,
+  TRIHEDRAL_PYRAMID,
+  SQUARE_PYRAMID,
+  PENTAGONAL_PYRAMID,
+}
+
+const currentFigure = ref<Figures>(Figures.PENTAGONAL_PYRAMID);
+
+export const useFigure = () => {
+  const setFigure = (figure: Figures) => {
+    currentFigure.value = figure;
+  };
+
+  return {
+    currentFigure,
+    setFigure,
+  };
+};
diff --git a/src/composables/states.ts b/src/composables/useTransformations.ts
similarity index 55%
rename from src/composables/states.ts
rename to src/composables/useTransformations.ts
index ac45323..d7dd184 100644
--- a/src/composables/states.ts
+++ b/src/composables/useTransformations.ts
@@ -1,10 +1,27 @@
+export const enum Projections {
+  NONE,
+  ISOMETRIC,
+  DIMETRIC,
+  TRIMETRIC,
+  ONE_POINT_PERSPECTIVE,
+  TWO_POINT_PERSPECTIVE,
+}
+
 export type XYZ = [number, number, number];
 
-type fn = ((translation: XYZ, rotation: XYZ, scale: XYZ) => void) | null;
+type fn =
+  | ((
+      translation: XYZ,
+      rotation: XYZ,
+      scale: XYZ,
+      projection: Projections
+    ) => void)
+  | null;
 
 const translation = reactive<XYZ>([0, 0, 0]);
 const rotation = reactive<XYZ>([0, 0, 0]);
 const scale = reactive<XYZ>([1, 1, 1]);
+const projection = ref<Projections>(Projections.NONE);
 
 const setTranslation = (axis: number, value: number) => {
   translation[axis] = value;
@@ -18,17 +35,23 @@ const setScale = (axis: number, value: number) => {
   scale[axis] = value;
 };
 
+const setProjection = (value: Projections) => {
+  projection.value = value;
+};
+
 export const useTransformations = (onUpdate: fn = null) => {
   watchEffect(() => {
-    if (onUpdate) onUpdate(translation, rotation, scale);
+    if (onUpdate) onUpdate(translation, rotation, scale, projection.value);
   });
 
   return {
     translation,
     rotation,
     scale,
+    projection,
     setTranslation,
     setRotation,
     setScale,
+    setProjection,
   };
 };
diff --git a/src/layouts/default.vue b/src/layouts/default.vue
index 7fd3a30..9237b1a 100644
--- a/src/layouts/default.vue
+++ b/src/layouts/default.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-const showMenu = ref<boolean>(false);
+const showMenu = ref<boolean>(true);
 </script>
 
 <template>
diff --git a/src/pages/figure.vue b/src/pages/figure.vue
index f31a824..e76efc3 100644
--- a/src/pages/figure.vue
+++ b/src/pages/figure.vue
@@ -1,17 +1,30 @@
 <script setup lang="ts">
 const axes = ['x', 'y', 'z'];
 const projections = [
-  'Без проекции',
-  'Изометрическая',
-  'Диметрическая',
-  'Триметрическая',
-  'Одноточечная перспективная',
-  'Двухточечная перспективная',
+  { projection: Projections.NONE, title: 'Без проекции' },
+  { projection: Projections.ISOMETRIC, title: 'Изометрическая' },
+  { projection: Projections.DIMETRIC, title: 'Диметрическая' },
+  { projection: Projections.TRIMETRIC, title: 'Триметрическая' },
+  {
+    projection: Projections.ONE_POINT_PERSPECTIVE,
+    title: 'Одноточечная перспектива',
+  },
+  {
+    projection: Projections.TWO_POINT_PERSPECTIVE,
+    title: 'Двухточечная перспектива',
+  },
 ];
 
 const activeProjection = ref<number>(0);
 
 const transformations = useTransformations();
+
+onMounted(() => (activeProjection.value = transformations.projection.value));
+
+const setActiveProjection = (index: number) => {
+  activeProjection.value = index;
+  transformations.setProjection(projections[index].projection);
+};
 </script>
 
 <template>
@@ -20,9 +33,10 @@ const transformations = useTransformations();
       <FormRange
         v-for="(axis, i) in axes"
         :label="`${axis} =`"
-        :min="-100"
-        :max="100"
-        :step="1"
+        :min="-500"
+        :max="500"
+        :step="5"
+        :current-value="transformations.translation[i]"
         :defaultValue="0"
         @change="transformations.setTranslation(i, $event)"
       />
@@ -34,6 +48,7 @@ const transformations = useTransformations();
         :min="0"
         :max="359"
         :step="1"
+        :current-value="transformations.rotation[i]"
         :defaultValue="0"
         @change="transformations.setRotation(i, $event)"
       />
@@ -46,6 +61,7 @@ const transformations = useTransformations();
         :min="0.1"
         :max="5"
         :step="0.1"
+        :current-value="transformations.scale[i]"
         :defaultValue="1"
         @change="transformations.setScale(i, $event)"
       />
@@ -54,10 +70,10 @@ const transformations = useTransformations();
       <GridContainer>
         <GridElement
           v-for="(projection, i) in projections"
-          :key="projection"
+          :key="projection.title"
           :is-active="activeProjection === i"
-          :title="projection"
-          @click="activeProjection = i"
+          :title="projection.title"
+          @click="setActiveProjection(i)"
         />
       </GridContainer>
     </Accordion>
diff --git a/src/pages/index.vue b/src/pages/index.vue
index fed3337..0ba8593 100644
--- a/src/pages/index.vue
+++ b/src/pages/index.vue
@@ -1,10 +1,34 @@
 <script setup lang="ts">
-const figures = ['Тетраэдр', 'Гексаэдр', 'Октаэдр', 'Додекаэдр', 'Икосаэдр'];
+const allFigures = [
+  { figure: Figures.CUBE, title: 'Куб' },
+  { figure: Figures.OCTAHEDRON, title: 'Октаэдр' },
+  { figure: Figures.TRIHEDRAL_PYRAMID, title: 'Трехгранная пирамида' },
+  { figure: Figures.SQUARE_PYRAMID, title: 'Четырехгранная пирамида' },
+  { figure: Figures.PENTAGONAL_PYRAMID, title: 'Пятигранная пирамиида' },
+];
+
+const activeFigure = ref<number>(0);
+
+const figure = useFigure();
+
+onMounted(() => (activeFigure.value = figure.currentFigure.value));
+
+const selectFigure = (index: number) => {
+  activeFigure.value = index;
+  figure.setFigure(allFigures[index].figure);
+  navigateTo('/figure');
+};
 </script>
 
 <template>
   <h1>Выберете фигуру</h1>
   <GridContainer>
-    <GridElement v-for="figure in figures" :key="figure" :title="figure" />
+    <GridElement
+      v-for="(figure, i) in allFigures"
+      :key="figure.title"
+      :title="figure.title"
+      :is-active="activeFigure === i"
+      @click="selectFigure(i)"
+    />
   </GridContainer>
 </template>