93 lines
3.1 KiB
Plaintext
93 lines
3.1 KiB
Plaintext
// example game callbacks — overrides defaults from load.nut
|
|
// Frame: physics → map/particles.update → clear → map → box → particles → debug → present
|
|
//
|
|
// Soft hot-reload: put one-time setup in eve_init; guard mutable state so
|
|
// re-dofile does not wipe C++ entity refs. Optional eve_reload / eve_asset_reload.
|
|
|
|
persist fx = null
|
|
persist tileLayer = null
|
|
persist world = null
|
|
persist ground = null
|
|
persist boxBody = null
|
|
persist boxW = 48.0
|
|
persist boxH = 48.0
|
|
|
|
eve_init = function() {
|
|
gfx.setBackgroundColor(0.08, 0.09, 0.14, 1.0);
|
|
if (particles == null) particles = eve.Particles();
|
|
if (map == null) map = eve.Map();
|
|
if (physics == null) physics = eve.Physics();
|
|
physics.setMeter(30.0);
|
|
|
|
if (tileLayer == null) {
|
|
tileLayer = map.newLayerFromFile("maps/demo.json");
|
|
if (tileLayer == null) {
|
|
// Fallback: procedural checkerboard without atlas (solid debug colors).
|
|
tileLayer = map.newLayer(10, 7, 32.0, 32.0);
|
|
tileLayer.setOrigin(40.0, 80.0);
|
|
tileLayer.setLayer(0);
|
|
for (local y = 0; y < 7; y += 1) {
|
|
for (local x = 0; x < 10; x += 1) {
|
|
local gid = ((x + y) % 2 == 0) ? 1 : 2;
|
|
if (x == 0 || y == 0 || x == 9 || y == 6) gid = 3;
|
|
tileLayer.setTile(x, y, gid);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (world == null) {
|
|
// Gravity in pixels/s² (+Y is down, matching screen coords).
|
|
world = physics.newWorld(0.0, 980.0, true);
|
|
|
|
ground = world.newBody("static", config.width * 0.5, config.height - 20.0);
|
|
ground.newRectangleFixture(config.width * 1.0, 40.0, 0.0, 0.6, 0.0);
|
|
|
|
boxBody = world.newBody("dynamic", config.width * 0.5, 80.0);
|
|
boxBody.newRectangleFixture(boxW, boxH, 1.0, 0.3, 0.2);
|
|
}
|
|
|
|
if (fx == null) {
|
|
fx = particles.newEmitterFromFile("particles/fire.json");
|
|
if (fx == null) {
|
|
fx = particles.newEmitter(256);
|
|
fx.applyPreset("fire");
|
|
fx.setPosition(config.width * 0.5, config.height * 0.75);
|
|
fx.start();
|
|
} else {
|
|
fx.setPosition(config.width * 0.5, config.height * 0.75);
|
|
}
|
|
}
|
|
};
|
|
|
|
// Called after scripts soft-reload (not after asset-only changes).
|
|
eve_reload <- function() {
|
|
// Example: tweak live state without recreating emitters / layers.
|
|
};
|
|
|
|
// Called when a non-.nut watched file changes (after HotReload.tryReload).
|
|
eve_asset_reload <- function(path) {
|
|
};
|
|
|
|
eve_update = function(dt) {
|
|
if (world) world.update(dt);
|
|
if (map) map.update(dt);
|
|
if (particles) particles.update(dt);
|
|
};
|
|
|
|
eve_render = function() {
|
|
gfx.clear();
|
|
if (map) map.render(gfx);
|
|
if (boxBody) {
|
|
local x = boxBody.getX() - boxW * 0.5;
|
|
local y = boxBody.getY() - boxH * 0.5;
|
|
gfx.drawSolidRect(x, y, boxW, boxH, 1.3, 0.8, 0.4, 1.0);
|
|
}
|
|
if (ground) {
|
|
gfx.drawSolidRect(0.0, config.height - 40.0, config.width * 1.0, 40.0, 0.25, 0.35, 0.3, 1.0);
|
|
}
|
|
if (particles) particles.render(gfx);
|
|
if (config.debug && world)
|
|
world.drawDebug(gfx);
|
|
};
|