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quizEngine
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draw answer buttons with text

This commit is contained in:
Alexander Popov 2021-07-04 21:07:22 +03:00
parent 3f51cd79d9
commit 7400976c52
2 changed files with 38 additions and 40 deletions
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8
app/js/draw.js
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@ -14,3 +14,11 @@ export function clearContext(canvas, config) {
context.fillStyle = graBack;
context.fillRect(0, 0, cW, cH);
}
export function getCenterH(canvasWidth, objectWidth) {
return canvasWidth / 2 - objectWidth / 2;
}
export function getCenterV(canvasHeight, objectHeight) {
return canvasHeight / 2 - objectHeight / 2;
}

70
app/js/index.js
View File

@ -4,7 +4,7 @@ import config from '../config.json'; // game configuration
import gameData from '../gameData.json'; // game data
import { getMousePos, isInside } from './buttons.js';
import { clearContext } from './draw.js';
import { clearContext, getCenterH, getCenterV } from './draw.js';
// Engine variables -------------------------------------
let DEBUG = true;
@ -28,11 +28,29 @@ window.onload = function() {
if (cW >= cH) { orientation = true; }
else { orientation = false; }
area = {
answerButtons: { x: 10, y: cH - 340, w: cW - 20, h: 250 },
}
button = {
info: { x: 10, y: cH - 80, w: 70, h: 70 },
sfx: { x: cW - 80, y: cH - 80, w: 70, h: 70 },
// TODO: change data: to null
answerButtons: [
{ x: getCenterH(cW, cW / 1.5), y: 0, w: cW / 1.5, h: 50, data: "olololosdgsdggs" },
{ x: getCenterH(cW, cW / 1.5), y: 0, w: cW / 1.5, h: 50, data: "null" },
{ x: getCenterH(cW, cW / 1.5), y: 0, w: cW / 1.5, h: 50, data: "null" },
{ x: getCenterH(cW, cW / 1.5), y: 0, w: cW / 1.5, h: 50, data: "null" },
],
}
button.answerButtons.forEach(function callback(value, index, array) {
if (index == 0)
array[index].y = area.answerButtons.y;
else
array[index].y = array[index - 1].y + value.h + 15;
});
canvas.addEventListener('click', function(evt) {
let mousePos = getMousePos(canvas, evt);
@ -62,6 +80,7 @@ function update() {
function draw() {
clearContext(canvas, config); // flush?! canvas
// draw game areas
if (DEBUG) {
context.strokeStyle = "red";
context.lineWidth = 2;
@ -71,7 +90,8 @@ function draw() {
// TODO: draw answer buttons area by landscape
console.log('TODO: draw answer buttons area by landscape');
else
context.strokeRect(10, cH - 390, cW - 20, 300);
context.strokeRect(area.answerButtons.x, area.answerButtons.y,
area.answerButtons.w, area.answerButtons.h);
}
// draw image ------------------------------------------
@ -90,51 +110,21 @@ function draw() {
context.fillText(gameData[0].question, cW / 2, cH - 420);
// draw buttons ------------------------------------------
let graButton = context.createLinearGradient(0, 0, cW / 2, cH / 2);
graButton.addColorStop(0, "#3fff7c");
graButton.addColorStop(1, "#3ffbe0");
context.fillStyle = graButton;
context.fillStyle = "yellow";
function centerW(size) {
return cW / 2 - size / 2;
for (let i = 0; i <= button.answerButtons.length - 1; i++) {
context.fillRect(button.answerButtons[i].x, button.answerButtons[i].y,
button.answerButtons[i].w, button.answerButtons[i].h);
}
function centerH(size) {
return cH / 2 - size / 2;
}
context.fillRect(centerW(cW / 1.5), cH - 380, cW / 1.5, 50);
context.fillRect(centerW(cW / 1.5), cH - 320, cW / 1.5, 50);
context.fillRect(centerW(cW / 1.5), cH - 260, cW / 1.5, 50);
context.fillRect(centerW(cW / 1.5), cH - 200, cW / 1.5, 50);
context.strokeStyle = "navy";
context.lineWidth = 2;
context.strokeRect(centerW(cW / 1.5), cH - 380, cW / 1.5, 50);
context.strokeRect(centerW(cW / 1.5), cH - 320, cW / 1.5, 50);
context.strokeRect(centerW(cW / 1.5), cH - 260, cW / 1.5, 50);
context.strokeRect(centerW(cW / 1.5), cH - 200, cW / 1.5, 50);
context.font = "32px Ubuntu";
context.textAlign = "center";
context.fillStyle = "white";
for (let i = 0; i < 4; i++) {
switch(i) {
case 0:
context.fillText(gameData[0].answer[i], cW / 2, cH - 380 + 35);
break;
case 1:
context.fillText(gameData[0].answer[i], cW / 2, cH - 320 + 35);
break;
case 2:
context.fillText(gameData[0].answer[i], cW / 2, cH - 260 + 35);
break;
case 3:
context.fillText(gameData[0].answer[i], cW / 2, cH - 200 + 35);
break;
}
}
button.answerButtons.forEach(function callback(value) {
//
context.fillText(value.data, cW / 2, value.y + 35);
});
// UI ------------------------------------------