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game: destroy enemies by letter

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He4eT 2025-06-06 20:16:27 +02:00
commit d0206ef337
1 changed files with 26 additions and 16 deletions
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42
game.js
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@ -78,6 +78,7 @@ let player = {
/**
* @typedef {{
* letter: string,
* type: 'zombie',
* dangerZone: number,
* positions: Point[],
@ -173,17 +174,31 @@ function handleMorse() {
player.sprite = btn(BTN_B) ? 65 : 64
if (btnp(BTN_B, 100, 100)) {
if (enemies.length > 0) {
destroyEnemiesByLetter('e')
}
}
function destroyEnemiesByLetter(letter) {
const destructionEffects = [
['laser', [1, 2, 3, 4, 7, 7, 7, 6, 5, 4, 3, 2, 1]],
['nuke', [7, 6, 5, 4, 3, 2]],
['verticalLine', [4, 5, 6, 7, 7, 6, 5, 4]],
['horizontalLine', [4, 5, 6, 7, 7, 6, 5, 4]],
]
enemies
.filter((enemy) => enemy.letter === letter)
.forEach((enemy) => {
const [type, frames] = destructionEffects[rnd(0, 3)]
effects.unshift({
type: 'laser',
type,
frames,
from: player.position,
to: enemies[0].positions[0],
frames: [1, 2, 3, 4, 7, 7, 7, 6, 5, 4, 3, 2, 1],
to: enemy.positions[0],
})
enemies.shift()
trace(enemies.length)
}
}
})
enemies = enemies.filter((enemy) => enemy.letter !== letter)
}
/* Enemies */
@ -199,6 +214,7 @@ function spawn() {
},
],
type: 'zombie',
letter: 'e',
dangerZone: 8,
},
]
@ -206,7 +222,6 @@ function spawn() {
enemies.forEach((enemy) => {
effects.unshift({
type: 'detection',
from: {},
to: enemy.positions[0],
frames: Array(5).fill(4),
})
@ -263,13 +278,12 @@ function drawFX() {
effects
.map((effect) => ({
...effect,
from: arenaToScreen(effect.from),
to: arenaToScreen(effect.to),
from: arenaToScreen(effect.from ?? {}),
to: arenaToScreen(effect.to ?? {}),
}))
.forEach((effect) =>
({
laser: ({ from, to, frames }) => {
/* [1, 2, 3, 4, 7, 7, 7, 6, 5, 4, 3, 2, 1] */
const color = frames.shift()
line(from.x, from.y, to.x, to.y, color)
circ(from.x, from.y, frames.length / 3, color)
@ -277,22 +291,18 @@ function drawFX() {
circb(to.x, to.y, frames.length, color + 3)
},
nuke: ({ to, frames }) => {
/* [6, 5, 4, 3, 2] */
const color = frames.shift()
circ(to.x, to.y, Math.pow(frames.length, 5), color)
},
verticalLine: ({ to, frames }) => {
/* [4, 5, 6, 7, 7, 6, 5, 4] */
const color = frames.shift()
rect(0, to.y - frames.length, SCREEN_W, frames.length * 2, color)
},
horizontalLine: ({ to, frames }) => {
/* [4, 5, 6, 7, 7, 6, 5, 4] */
const color = frames.shift()
rect(to.x - frames.length, 0, frames.length * 2, SCREEN_W, color)
},
detection: ({ to, frames }) => {
/* Array(5).fill(4)] */
const color = frames.shift()
const w = arena.spriteHalfSize
const d = frames.length + 2 * w