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EnemyHandler.js
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EnemyHandler.js
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import { BLOCK_SIZE, LEVEL_HEIGHT, LEVEL_WIDTH } from './constants.js';
import GridHandler from './GridHandler.js';
import PlayerHandler from './PlayerHandler.js';
import BloodHandler from './BloodHandler.js';
import { BLOCK_INTS } from './blocks.js';
export default {
init(game) {
this.startAccel = 0.01;
this.startSpeed = 0.5;
this.fallSpeed = 4.0;
this.startWidth = 36;
this.startHeight = 46;
this.jumpHeight = 12.0;
this.jumpDelay = 12.0;
this.startHp = 8;
this.spawnRate = 0.03;
this.list = [];
this.pool = [];
this.game = game;
this.time = game.time;
this.blood = BloodHandler.create.bind(BloodHandler);
},
enterFrame(game) {
var gridList = GridHandler.list;
var enemy, i, j, startX, startY, endX, endY, newX, newY, collide;
i = this.game.time / this.game.dayLength;
if ((i < 0.25 || i > 0.75) && Math.random() < this.spawnRate) {
this.create();
}
if (i > 0.25 && i < 0.75 && Math.random() < this.spawnRate / 35) {
this.create();
}
for (var k = this.list.length - 1; k >= 0; k--) {
enemy = this.list[k];
if (enemy.hp <= 0) {
this.pool[this.pool.length] = enemy;
this.list.splice(k, 1);
this.blood(enemy.x, enemy.y, 0, 0, 15);
var mod = PlayerHandler.kills % 50 == 0;
if (enemy.lastHit == 'shot') PlayerHandler.kills++;
if (!mod && PlayerHandler.kills % 50 == 0) {
game.newLevel = true;
}
continue;
}
if (enemy.inWater && enemy.y > PlayerHandler.y) {
enemy.willJump = true;
}
if (enemy.canJump < 1 && enemy.willJump) {
enemy.boredLevel++;
enemy.vY = -this.jumpHeight;
enemy.willJump = false;
}
if (enemy.boredLevel > 10) enemy.acknowledgeBored = true;
if (enemy.boredLevel < 0) {
enemy.acknowledgeBored = false;
enemy.boredLevel = 0;
}
if (
PlayerHandler.x < enemy.x ||
(enemy.acknowledgeBored && PlayerHandler.x > enemy.x)
) {
enemy.vX -= enemy.accel;
enemy.lastDir = -1;
if (enemy.vX < -enemy.speed) {
enemy.vX = -enemy.speed;
}
enemy.boredLevel -= 0.01;
} else if (
PlayerHandler.x > enemy.x ||
(enemy.acknowledgeBored && PlayerHandler.x < enemy.x)
) {
enemy.vX += enemy.accel;
enemy.lastDir = 1;
if (enemy.vX > enemy.speed) {
enemy.vX = enemy.speed;
}
enemy.boredLevel -= 0.01;
}
newX = enemy.x + enemy.vX;
startX = Math.max(((newX - enemy.width / 2) / BLOCK_SIZE) | 0, 0);
startY = Math.max(
((enemy.y - enemy.height / 2) / BLOCK_SIZE) | 0,
0
);
endX = Math.min(
((newX + enemy.width / 2 - 1) / BLOCK_SIZE) | 0,
LEVEL_WIDTH - 1
);
endY = Math.min(
((enemy.y + enemy.height / 2) / BLOCK_SIZE) | 0,
LEVEL_HEIGHT - 1
);
for (i = startX; i <= endX; i++) {
for (j = startY; j <= endY; j++) {
if (
gridList[i][j] !== false &&
gridList[i][j] != BLOCK_INTS.cloud &&
gridList[i][j] != BLOCK_INTS.platform
) {
if (this.time % 100 == 0) {
let pen = false;
if (
enemy.level > 8 &&
gridList[i][j] == BLOCK_INTS.wood
) {
gridList[i][j] = false;
pen = true;
}
if (
enemy.level > 5 &&
gridList[i][j] == BLOCK_INTS.dirt
) {
gridList[i][j] = false;
pen = true;
}
if (pen) continue;
}
if (gridList[i][j] == BLOCK_INTS.water) {
enemy.inWater = true;
if (enemy.vX > enemy.speed / 2) {
enemy.vX = enemy.speed / 2;
} else if (enemy.vX < -enemy.speed / 2) {
enemy.vX = -enemy.speed / 2;
}
} else if (gridList[i][j] == BLOCK_INTS.fire) {
this.blood(enemy.x, enemy.y, 0, 0, 2);
enemy.hp--;
} else {
if (newX < i * BLOCK_SIZE) {
newX = i * BLOCK_SIZE - enemy.width / 2;
} else {
newX =
i * BLOCK_SIZE +
BLOCK_SIZE +
enemy.width / 2;
}
enemy.vX = 0;
enemy.willJump = true;
}
}
}
}
enemy.x = newX;
if (enemy.inWater) {
enemy.vY += 0.25;
if (enemy.vY > this.fallSpeed * 0.3) {
enemy.vY = this.fallSpeed * 0.3;
}
newY = enemy.y + enemy.vY * 0.6;
} else {
enemy.vY += 0.4;
if (enemy.vY > this.fallSpeed) {
enemy.vY = this.fallSpeed;
}
newY = enemy.y + enemy.vY;
}
collide = false;
enemy.inWater = false;
startX = Math.max(
((enemy.x - enemy.width / 2) / BLOCK_SIZE) | 0,
0
);
startY = Math.max(((newY - enemy.height / 2) / BLOCK_SIZE) | 0, 0);
endX = Math.min(
((enemy.x + enemy.width / 2 - 1) / BLOCK_SIZE) | 0,
LEVEL_WIDTH - 1
);
endY = Math.min(
((newY + enemy.height / 2) / BLOCK_SIZE) | 0,
LEVEL_HEIGHT - 1
);
enemy.underWater = true;
for (i = startX; i <= endX; i++) {
for (j = startY; j <= endY; j++) {
if (
gridList[i][j] !== false &&
gridList[i][j] != BLOCK_INTS.cloud &&
gridList[i][j] != BLOCK_INTS.platform
) {
if (this.time % 100 == 0) {
let pen = false;
if (
enemy.level > 8 &&
gridList[i][j] == BLOCK_INTS.wood
) {
gridList[i][j] = false;
pen = true;
}
if (
enemy.level > 5 &&
gridList[i][j] == BLOCK_INTS.dirt
) {
gridList[i][j] = false;
pen = true;
}
if (pen) continue;
}
collide = true;
if (gridList[i][j] == BLOCK_INTS.water) {
enemy.inWater = true;
enemy.canJump--;
} else {
if (newY < j * BLOCK_SIZE) {
newY =
j * BLOCK_SIZE - enemy.height / 2 - 0.001;
enemy.canJump--;
} else {
newY =
j * BLOCK_SIZE +
BLOCK_SIZE +
enemy.height / 2;
}
enemy.vY = 0;
}
}
if (
gridList[i][j] == BLOCK_INTS.platform &&
enemy.vY > 0 &&
PlayerHandler.y < enemy.y - 1
) {
if (enemy.y + enemy.height * 0.5 < j * BLOCK_SIZE) {
newY = j * BLOCK_SIZE - enemy.height * 0.5 - 0.001;
collide = true;
enemy.vY = 0;
enemy.canJump--;
}
}
enemy.underWater =
enemy.underWater &&
gridList[i][j] != false &&
gridList[i][j] != BLOCK_INTS.cloud;
}
}
enemy.y = newY;
if (collide == false) {
enemy.canJump = this.jumpDelay;
}
if (
enemy.x - enemy.width / 2 <
PlayerHandler.x + PlayerHandler.width / 2 &&
enemy.x + enemy.width / 2 >
PlayerHandler.x - PlayerHandler.width / 2 &&
enemy.y - enemy.height / 2 <
PlayerHandler.y + PlayerHandler.height / 2 &&
enemy.y + enemy.height / 2 >
PlayerHandler.y - PlayerHandler.height / 2
) {
this.blood(enemy.x, enemy.y, 0, 0, 5);
PlayerHandler.hp--;
PlayerHandler.vX += (PlayerHandler.x - enemy.x) * 0.05;
PlayerHandler.vY += (PlayerHandler.y - enemy.y) * 0.05;
}
if (enemy.underWater) {
enemy.hp -= 0.004 * ((PlayerHandler.kills / 50) | (0 + 1));
if (this.game.time % 100 == 0) enemy.lastHit = 'water';
}
}
},
create() {
var enemy = {};
if (this.pool.length > 0) {
enemy = this.pool.pop();
}
if (
PlayerHandler.x < 500 ||
(Math.random() < 0.5 &&
PlayerHandler.x < LEVEL_WIDTH * BLOCK_SIZE - 800)
) {
enemy.x = PlayerHandler.x + 1024 + Math.random() * 200;
} else {
enemy.x = PlayerHandler.x - 1024 - Math.random() * 200;
}
enemy.y =
GridHandler.heightmap[Math.round(enemy.x / BLOCK_SIZE)] *
BLOCK_SIZE;
enemy.vX = 0;
enemy.vY = 10;
enemy.lastHit = 'shot';
enemy.acknowledgeBored = false;
enemy.boredLevel = 0;
enemy.level = (PlayerHandler.kills / 50) | (0 + 2);
enemy.hp = this.startHp + enemy.level;
enemy.accel = this.startAccel * enemy.level;
enemy.speed = this.startSpeed * enemy.level;
enemy.width = this.startWidth + enemy.level;
enemy.height = this.startHeight + enemy.level;
enemy.canJump = 0;
enemy.inWater = false;
enemy.underWater = true;
this.list[this.list.length] = enemy;
},
};