5c2319cc75
mod: recursion - gives missiles a 30% chance to spawn a larger missile when they explode mod: electric reactive armor - immune to harm from explosions while energy is full (was 80%) mod: ammonium nitrate - explosions are 60% bigger, but they do 300% more damage to you mod: trinitrotoluene - explosions are 50% smaller and do 71% more damage
256 lines
10 KiB
JavaScript
256 lines
10 KiB
JavaScript
//matter.js ***********************************************************
|
|
// module aliases
|
|
const Engine = Matter.Engine,
|
|
World = Matter.World,
|
|
Events = Matter.Events,
|
|
Composites = Matter.Composites,
|
|
Composite = Matter.Composite,
|
|
Constraint = Matter.Constraint,
|
|
Vertices = Matter.Vertices,
|
|
Query = Matter.Query,
|
|
Body = Matter.Body,
|
|
Bodies = Matter.Bodies,
|
|
Vector = Matter.Vector;
|
|
|
|
// create an engine
|
|
const engine = Engine.create();
|
|
engine.world.gravity.scale = 0; //turn off gravity (it's added back in later)
|
|
// engine.velocityIterations = 100
|
|
// engine.positionIterations = 100
|
|
// engine.enableSleeping = true
|
|
|
|
// matter events
|
|
function playerOnGroundCheck(event) {
|
|
//runs on collisions events
|
|
function enter() {
|
|
mech.numTouching++;
|
|
if (!mech.onGround) mech.enterLand();
|
|
}
|
|
const pairs = event.pairs;
|
|
for (let i = 0, j = pairs.length; i != j; ++i) {
|
|
let pair = pairs[i];
|
|
if (pair.bodyA === jumpSensor) {
|
|
mech.standingOn = pair.bodyB; //keeping track to correctly provide recoil on jump
|
|
if (mech.standingOn.alive !== true) enter();
|
|
} else if (pair.bodyB === jumpSensor) {
|
|
mech.standingOn = pair.bodyA; //keeping track to correctly provide recoil on jump
|
|
if (mech.standingOn.alive !== true) enter();
|
|
}
|
|
}
|
|
mech.numTouching = 0;
|
|
}
|
|
|
|
function playerOffGroundCheck(event) {
|
|
//runs on collisions events
|
|
function enter() {
|
|
if (mech.onGround && mech.numTouching === 0) mech.enterAir();
|
|
}
|
|
const pairs = event.pairs;
|
|
for (let i = 0, j = pairs.length; i != j; ++i) {
|
|
if (pairs[i].bodyA === jumpSensor) {
|
|
enter();
|
|
} else if (pairs[i].bodyB === jumpSensor) {
|
|
enter();
|
|
}
|
|
}
|
|
}
|
|
|
|
// function playerHeadCheck(event) {
|
|
// //runs on collisions events
|
|
// if (mech.crouch) {
|
|
// mech.isHeadClear = true;
|
|
// const pairs = event.pairs;
|
|
// for (let i = 0, j = pairs.length; i != j; ++i) {
|
|
// if (pairs[i].bodyA === headSensor) {
|
|
// mech.isHeadClear = false;
|
|
// } else if (pairs[i].bodyB === headSensor) {
|
|
// mech.isHeadClear = false;
|
|
// }
|
|
// }
|
|
// }
|
|
// }
|
|
|
|
function collisionChecks(event) {
|
|
const pairs = event.pairs;
|
|
for (let i = 0, j = pairs.length; i != j; i++) {
|
|
|
|
// //map + bullet collisions
|
|
// if (pairs[i].bodyA.collisionFilter.category === cat.map && pairs[i].bodyB.collisionFilter.category === cat.bullet) {
|
|
// collideBulletStatic(pairs[i].bodyB)
|
|
// } else if (pairs[i].bodyB.collisionFilter.category === cat.map && pairs[i].bodyA.collisionFilter.category === cat.bullet) {
|
|
// collideBulletStatic(pairs[i].bodyA)
|
|
// }
|
|
// //triggers when the bullets hits something static
|
|
// function collideBulletStatic(obj, speedThreshold = 12, massThreshold = 2) {
|
|
// if (obj.onWallHit) obj.onWallHit();
|
|
// }
|
|
|
|
|
|
//body + player collision
|
|
// if (game.isBodyDamage) {
|
|
// if (pairs[i].bodyA === playerBody || pairs[i].bodyA === playerHead) {
|
|
// collidePlayer(pairs[i].bodyB)
|
|
// } else if (pairs[i].bodyB === playerBody || pairs[i].bodyB === playerHead) {
|
|
// collidePlayer(pairs[i].bodyA)
|
|
// }
|
|
// }
|
|
|
|
// function collidePlayer(obj) {
|
|
// //player dmg from hitting a body
|
|
// if (obj.classType === "body" && obj.speed > 10 && mech.immuneCycle < mech.cycle) {
|
|
// const velocityThreshold = 30 //keep this lines up with player.enterLand numbers (130/5 = 26)
|
|
// if (player.position.y > obj.position.y) { //block is above the player look at total momentum difference
|
|
// const velocityDiffMag = Vector.magnitude(Vector.sub(player.velocity, obj.velocity))
|
|
// if (velocityDiffMag > velocityThreshold) hit(velocityDiffMag - velocityThreshold)
|
|
// } else { //block is below player only look at horizontal momentum difference
|
|
// const velocityDiffMagX = Math.abs(obj.velocity.x - player.velocity.x)
|
|
// if (velocityDiffMagX > velocityThreshold) hit(velocityDiffMagX - velocityThreshold)
|
|
// }
|
|
|
|
// function hit(dmg) {
|
|
// mech.immuneCycle = mech.cycle + mod.collisionImmuneCycles; //player is immune to collision damage for 30 cycles
|
|
// dmg = Math.min(Math.max(Math.sqrt(dmg) * obj.mass * 0.01, 0.02), 0.15);
|
|
// mech.damage(dmg);
|
|
// game.drawList.push({ //add dmg to draw queue
|
|
// x: pairs[i].activeContacts[0].vertex.x,
|
|
// y: pairs[i].activeContacts[0].vertex.y,
|
|
// radius: dmg * 500,
|
|
// color: game.mobDmgColor,
|
|
// time: game.drawTime
|
|
// });
|
|
// }
|
|
// }
|
|
// }
|
|
|
|
//mob + (player,bullet,body) collisions
|
|
for (let k = 0; k < mob.length; k++) {
|
|
if (mob[k].alive && mech.alive) {
|
|
if (pairs[i].bodyA === mob[k]) {
|
|
collideMob(pairs[i].bodyB);
|
|
break;
|
|
} else if (pairs[i].bodyB === mob[k]) {
|
|
collideMob(pairs[i].bodyA);
|
|
break;
|
|
}
|
|
|
|
function collideMob(obj) {
|
|
//player + mob collision
|
|
if (
|
|
mech.immuneCycle < mech.cycle &&
|
|
(obj === playerBody || obj === playerHead) &&
|
|
!(mod.isFreezeHarmImmune && (mob[k].isSlowed || mob[k].isStunned))
|
|
) {
|
|
mech.immuneCycle = mech.cycle + mod.collisionImmuneCycles; //player is immune to collision damage for 30 cycles
|
|
mob[k].foundPlayer();
|
|
let dmg = Math.min(Math.max(0.025 * Math.sqrt(mob[k].mass), 0.05), 0.3) * game.dmgScale; //player damage is capped at 0.3*dmgScale of 1.0
|
|
if (mod.isPiezo) {
|
|
mech.energy = mech.maxEnergy;
|
|
dmg *= 0.85
|
|
}
|
|
mech.damage(dmg);
|
|
if (mod.isBayesian) {
|
|
const have = [] //find which mods you have
|
|
for (let i = 0; i < mod.mods.length; i++) {
|
|
if (mod.mods[i].count > 0) have.push(i)
|
|
}
|
|
const choose = have[Math.floor(Math.random() * have.length)]
|
|
game.makeTextLog(`<div class='circle mod'></div> <strong>${mod.mods[choose].name}</strong> ejected by Bayesian statistics`, 300) //message about what mod was lost
|
|
for (let i = 0; i < mod.mods[choose].count; i++) powerUps.spawn(mech.pos.x, mech.pos.y, "mod");
|
|
mod.mods[choose].count = 0;
|
|
mod.mods[choose].remove(); // remove a random mod form the list of mods you have
|
|
game.updateModHUD();
|
|
mech.fieldCDcycle = mech.cycle + 30; //disable field so you can't pick up the ejected mod
|
|
}
|
|
if (mob[k].onHit) mob[k].onHit(k);
|
|
|
|
//extra kick between player and mob //this section would be better with forces but they don't work...
|
|
let angle = Math.atan2(player.position.y - mob[k].position.y, player.position.x - mob[k].position.x);
|
|
Matter.Body.setVelocity(player, {
|
|
x: player.velocity.x + 8 * Math.cos(angle),
|
|
y: player.velocity.y + 8 * Math.sin(angle)
|
|
});
|
|
Matter.Body.setVelocity(mob[k], {
|
|
x: mob[k].velocity.x - 8 * Math.cos(angle),
|
|
y: mob[k].velocity.y - 8 * Math.sin(angle)
|
|
});
|
|
|
|
if (mod.isAnnihilation && !mob[k].shield && !mob[k].isShielded && mech.energy > 0.33) {
|
|
mech.energy -= 0.33
|
|
mech.immuneCycle = 0; //player doesn't go immune to collision damage
|
|
mob[k].death();
|
|
game.drawList.push({
|
|
//add dmg to draw queue
|
|
x: pairs[i].activeContacts[0].vertex.x,
|
|
y: pairs[i].activeContacts[0].vertex.y,
|
|
radius: dmg * 2000,
|
|
color: "rgba(255,0,255,0.2)",
|
|
time: game.drawTime
|
|
});
|
|
} else {
|
|
game.drawList.push({
|
|
//add dmg to draw queue
|
|
x: pairs[i].activeContacts[0].vertex.x,
|
|
y: pairs[i].activeContacts[0].vertex.y,
|
|
radius: dmg * 500,
|
|
color: game.mobDmgColor,
|
|
time: game.drawTime
|
|
});
|
|
}
|
|
return;
|
|
// }
|
|
}
|
|
//mob + bullet collisions
|
|
if (obj.classType === "bullet" && obj.speed > obj.minDmgSpeed) {
|
|
let dmg = b.dmgScale * (obj.dmg + 0.15 * obj.mass * Vector.magnitude(Vector.sub(mob[k].velocity, obj.velocity)))
|
|
if (mod.isCrit && !mob[k].seePlayer.recall && !mob[k].shield) dmg *= 5
|
|
mob[k].foundPlayer();
|
|
mob[k].damage(dmg);
|
|
obj.onDmg(mob[k]); //some bullets do actions when they hits things, like despawn //forces don't seem to work here
|
|
game.drawList.push({ //add dmg to draw queue
|
|
x: pairs[i].activeContacts[0].vertex.x,
|
|
y: pairs[i].activeContacts[0].vertex.y,
|
|
radius: Math.log(2 * dmg + 1.1) * 40,
|
|
color: game.playerDmgColor,
|
|
time: game.drawTime
|
|
});
|
|
return;
|
|
}
|
|
//mob + body collisions
|
|
if (obj.classType === "body" && obj.speed > 6) {
|
|
const v = Vector.magnitude(Vector.sub(mob[k].velocity, obj.velocity));
|
|
if (v > 9) {
|
|
let dmg = 0.05 * b.dmgScale * v * obj.mass * mod.throwChargeRate;
|
|
if (mob[k].isShielded) dmg *= 0.35
|
|
mob[k].damage(dmg, true);
|
|
const stunTime = dmg / Math.sqrt(obj.mass)
|
|
if (stunTime > 0.5) mobs.statusStun(mob[k], 30 + 60 * Math.sqrt(stunTime))
|
|
if (mob[k].distanceToPlayer2() < 1000000) mob[k].foundPlayer();
|
|
game.drawList.push({
|
|
x: pairs[i].activeContacts[0].vertex.x,
|
|
y: pairs[i].activeContacts[0].vertex.y,
|
|
radius: Math.log(2 * dmg + 1.1) * 40,
|
|
color: game.playerDmgColor,
|
|
time: game.drawTime
|
|
});
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//determine if player is on the ground
|
|
Events.on(engine, "collisionStart", function (event) {
|
|
playerOnGroundCheck(event);
|
|
// playerHeadCheck(event);
|
|
collisionChecks(event);
|
|
});
|
|
Events.on(engine, "collisionActive", function (event) {
|
|
playerOnGroundCheck(event);
|
|
// playerHeadCheck(event);
|
|
});
|
|
Events.on(engine, "collisionEnd", function (event) {
|
|
playerOffGroundCheck(event);
|
|
}); |