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custom run difficulty scaling

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This commit is contained in:
landgreen
2020-01-18 07:51:03 -08:00
parent 14dc313517
commit 57126ab42e
8 changed files with 185 additions and 162 deletions
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79
js/engine.js
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@@ -102,7 +102,8 @@ function collisionChecks(event) {
function collidePlayer(obj, speedThreshold = 12, massThreshold = 2) {
if (obj.classType === "body" && obj.speed > speedThreshold && obj.mass > massThreshold) { //dmg from hitting a body
const v = Vector.magnitude(Vector.sub(player.velocity, obj.velocity));
if (v > speedThreshold) {
if (v > speedThreshold && mech.collisionImmune < mech.cycle) {
mech.collisionImmune = mech.cycle + b.modCollisionImmuneCycles; //player is immune to collision damage for 30 cycles
let dmg = Math.sqrt((v - speedThreshold + 0.1) * (obj.mass - massThreshold)) * 0.01;
dmg = Math.min(Math.max(dmg, 0.02), 0.15);
mech.damage(dmg);
@@ -131,47 +132,45 @@ function collisionChecks(event) {
function collideMob(obj) {
//player + mob collision
if (mech.collisionImmune < mech.cycle) {
if (obj === playerBody || obj === playerHead) {
mech.collisionImmune = mech.cycle + b.modCollisionImmuneCycles; //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
mech.damage(dmg);
if (mob[k].onHit) mob[k].onHit(k);
if (b.isModPiezo) mech.fieldMeter = mech.fieldEnergyMax;
if (b.isModAnnihilation && mob[k].dropPowerUp && !mob[k].isShielded) {
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
});
if (mech.collisionImmune < mech.cycle && (obj === playerBody || obj === playerHead)) {
mech.collisionImmune = mech.cycle + b.modCollisionImmuneCycles; //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
mech.damage(dmg);
if (mob[k].onHit) mob[k].onHit(k);
if (b.isModPiezo) mech.fieldMeter = mech.fieldEnergyMax;
if (b.isModAnnihilation && mob[k].dropPowerUp && !mob[k].isShielded) {
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
});
}
//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)
});
return;
}
//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)
});
return;
}
//mob + bullet collisions
if (obj.classType === "bullet" && obj.speed > obj.minDmgSpeed) {