sunxfancy
018f3cd525
- Changed the default game directory setting to empty, allowing for running the embedded demo without arguments. - Updated run commands to conditionally change directories based on the GAME variable, improving flexibility for game execution. - Enhanced documentation in the Makefile to clarify the behavior of the GAME variable and its impact on running the game. These changes streamline the game execution process and improve user experience when running different game scenarios.
100 lines
3.3 KiB
Plaintext
100 lines
3.3 KiB
Plaintext
// example game callbacks — overrides defaults from load.nut
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// Frame: physics → map/particles.update → clear → map → box → particles → debug → present
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//
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// Soft hot-reload: put one-time setup in eve_init; guard mutable state so
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// re-dofile does not wipe C++ entity refs. Optional eve_reload / eve_asset_reload.
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if (!("fx" in getroottable()))
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fx <- null;
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if (!("tileLayer" in getroottable()))
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tileLayer <- null;
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if (!("world" in getroottable()))
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world <- null;
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if (!("ground" in getroottable()))
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ground <- null;
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if (!("boxBody" in getroottable()))
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boxBody <- null;
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if (!("boxW" in getroottable()))
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boxW <- 48.0;
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if (!("boxH" in getroottable()))
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boxH <- 48.0;
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eve_init = function() {
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gfx.setBackgroundColor(0.08, 0.09, 0.14, 1.0);
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if (particles == null) particles = eve.Particles();
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if (map == null) map = eve.Map();
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if (physics == null) physics = eve.Physics();
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physics.setMeter(30.0);
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if (tileLayer == null) {
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tileLayer = map.newLayerFromFile("maps/demo.json");
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if (tileLayer == null) {
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// Fallback: procedural checkerboard without atlas (solid debug colors).
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tileLayer = map.newLayer(10, 7, 32.0, 32.0);
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tileLayer.setOrigin(40.0, 80.0);
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tileLayer.setLayer(0);
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for (local y = 0; y < 7; y += 1) {
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for (local x = 0; x < 10; x += 1) {
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local gid = ((x + y) % 2 == 0) ? 1 : 2;
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if (x == 0 || y == 0 || x == 9 || y == 6) gid = 3;
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tileLayer.setTile(x, y, gid);
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}
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}
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}
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}
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if (world == null) {
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// Gravity in pixels/s² (+Y is down, matching screen coords).
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world = physics.newWorld(0.0, 980.0, true);
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ground = world.newBody("static", config.width * 0.5, config.height - 20.0);
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ground.newRectangleFixture(config.width * 1.0, 40.0, 0.0, 0.6, 0.0);
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boxBody = world.newBody("dynamic", config.width * 0.5, 80.0);
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boxBody.newRectangleFixture(boxW, boxH, 1.0, 0.3, 0.2);
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}
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if (fx == null) {
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fx = particles.newEmitterFromFile("particles/fire.json");
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if (fx == null) {
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fx = particles.newEmitter(256);
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fx.applyPreset("fire");
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fx.setPosition(config.width * 0.5, config.height * 0.75);
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fx.start();
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} else {
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fx.setPosition(config.width * 0.5, config.height * 0.75);
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}
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}
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};
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// Called after scripts soft-reload (not after asset-only changes).
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eve_reload <- function() {
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// Example: tweak live state without recreating emitters / layers.
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};
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// Called when a non-.nut watched file changes (after HotReload.tryReload).
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eve_asset_reload <- function(path) {
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};
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eve_update = function(dt) {
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if (world) world.update(dt);
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if (map) map.update(dt);
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if (particles) particles.update(dt);
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};
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eve_render = function() {
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gfx.clear();
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if (map) map.render(gfx);
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if (boxBody) {
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local x = boxBody.getX() - boxW * 0.5;
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local y = boxBody.getY() - boxH * 0.5;
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gfx.drawSolidRect(x, y, boxW, boxH, 1.3, 0.8, 0.4, 1.0);
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}
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if (ground) {
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gfx.drawSolidRect(0.0, config.height - 40.0, config.width * 1.0, 40.0, 0.25, 0.35, 0.3, 1.0);
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}
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if (particles) particles.render(gfx);
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if (config.debug && world)
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world.drawDebug(gfx);
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};
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