445 lines
15 KiB
Plaintext
445 lines
15 KiB
Plaintext
dofile("town_art.nut");
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// ============================================================================
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// EVEngine Building 模块示例 —— 城镇建筑放置沙盒
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//
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// 演示 eve.Building()：
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// 建筑定义 —— JSON：占地、掩码、地形/邻接、代价
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// PlacementWorld —— 地形语义 + 占用格子
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// Ghost —— 吸附预览 + 校验原因（绿/红）
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// 操作 —— 放置 / 旋转 / 拆除 / 重置
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//
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// 按键：1-5 选建筑 R 旋转 左键放置 右键拆除 Space 重置
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// 运行： make run/<platform>-debug GAME=examples/building
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// 或 make building
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// ============================================================================
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persist bld = null
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persist world = null
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persist ghost = null
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persist palette = []
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persist paletteIndex = 0
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persist gold = 0
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persist wood = 0
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persist logLines = []
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persist prevKeys = {}
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persist prevMouse = { left = false, right = false }
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persist uiBuilt = false
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persist mapOriginX = 24.0
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persist mapOriginY = 88.0
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persist cellPx = 28.0
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persist gridW = 24
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persist gridH = 18
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persist sidebarX = 724.0
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persist sidebarWidth = 532.0
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persist hiddenGhostCellX = -999
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persist hiddenGhostCellY = -999
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// 地形语义：1=陆地 2=水域
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TERRAIN_LAND <- 1;
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TERRAIN_WATER <- 2;
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function pushLog(text) {
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logLines.push(text);
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while (logLines.len() > 7)
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logLines.remove(0);
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}
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function keyPressed(name) {
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return key_just_pressed(name);
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}
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// 鼠标按键编号：1 = 左键，2 = 右键（与 engine mouse::isDown 一致）。
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function mousePressed(button) {
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local down = mouse.isDown(button);
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local was = false;
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if (button == 1)
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was = prevMouse.left;
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else if (button == 2)
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was = prevMouse.right;
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if (button == 1)
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prevMouse.left = down;
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else if (button == 2)
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prevMouse.right = down;
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return down && !was;
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}
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function registerBuildings() {
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bld.registerBuildingsFromJson(@"[
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{""id"":""road"",""displayName"":""石板路"",""category"":""infra"",
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""footprintW"":1,""footprintH"":1,""tags"":[""road""],""requireTerrain"":[1],""cost"":{""gold"":2}},
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{""id"":""house.wood"",""displayName"":""石屋"",""category"":""housing"",
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""footprintW"":2,""footprintH"":2,""tags"":[""house"",""housing""],
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""requireTerrain"":[1],""cost"":{""gold"":15,""wood"":20},
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""extra"":{""color"":""warm""}},
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{""id"":""stall"",""displayName"":""摊位"",""category"":""commerce"",
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""footprintW"":1,""footprintH"":1,""tags"":[""shop""],
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""requireTerrain"":[1],""requireAdjacentTag"":""road"",
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""cost"":{""gold"":8,""wood"":6}},
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{""id"":""dock"",""displayName"":""码头"",""category"":""infra"",
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""footprintW"":2,""footprintH"":1,""tags"":[""dock""],
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""requireTerrain"":[2],""rotationMode"":""cardinal"",
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""cost"":{""gold"":25,""wood"":30}},
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{""id"":""barn.l"",""displayName"":""L形仓"",""category"":""storage"",
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""footprintW"":2,""footprintH"":2,""tags"":[""barn""],
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""footprintMask"":[1,1,1,0],""requireTerrain"":[1],
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""cost"":{""gold"":18,""wood"":24}}
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]");
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}
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function paintTerrain() {
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world.fillTerrain(TERRAIN_LAND);
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// 横向河道
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local y = 11;
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for (local x = 0; x < gridW; x += 1)
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world.setTerrain(x, y, TERRAIN_WATER);
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// 南岸小湖
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for (local x = 16; x <= 20; x += 1) {
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for (local yy = 13; yy <= 16; yy += 1)
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world.setTerrain(x, yy, TERRAIN_WATER);
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}
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// 北岸浅湾
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for (local x = 2; x <= 5; x += 1)
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world.setTerrain(x, 10, TERRAIN_WATER);
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}
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function resetTown() {
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if (ghost) ghost.destroy();
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if (world) world.destroy();
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world = bld.newWorld(gridW, gridH, cellPx);
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world.setId("town");
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world.setOrigin(mapOriginX, mapOriginY);
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world.setSnapMode("grid");
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paintTerrain();
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ghost = bld.newGhost();
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palette = ["road", "house.wood", "stall", "dock", "barn.l"];
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paletteIndex = 0;
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ghost.setBuildingId(palette[paletteIndex]);
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ghost.setRotationDeg(0.0);
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// Seed a readable town using the same validated placement path as the player.
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foreach (entry in [["house.wood",3,3],["house.wood",8,3],["barn.l",12,4],
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["road",3,6],["road",4,6],["road",5,6],["road",6,6],
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["road",7,6],["road",8,6],["road",9,6],["road",10,6],
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["stall",6,5],["dock",10,11]]) {
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ghost.setBuildingId(entry[0]);
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ghost.setFromWorld(world,mapOriginX+(entry[1]+0.5)*cellPx,mapOriginY+(entry[2]+0.5)*cellPx);
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ghost.validate(world);
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if (!ghost.isValid() || world.placeGhost(ghost)<=0) throw "Town seed placement failed";
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}
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ghost.setBuildingId(palette[0]);
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gold = 500;
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wood = 400;
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hiddenGhostCellX = -999;
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hiddenGhostCellY = -999;
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logLines = [];
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pushLog("欢迎来到城镇沙盒：先铺路，再摆摊；码头只能建在水上。");
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bld.clearChangeEvents();
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}
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function currentBuildingId() {
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return palette[paletteIndex];
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}
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function selectPalette(index) {
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if (index < 0 || index >= palette.len()) return;
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paletteIndex = index;
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ghost.setBuildingId(palette[paletteIndex]);
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hiddenGhostCellX = -999;
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hiddenGhostCellY = -999;
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pushLog("选择：" + bld.getBuildingDisplayName(palette[paletteIndex]));
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}
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function canAfford(buildingId) {
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local needGold = bld.getBuildingCost(buildingId, "gold");
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local needWood = bld.getBuildingCost(buildingId, "wood");
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if (gold < needGold) return "not_enough_gold";
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if (wood < needWood) return "not_enough_wood";
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return "";
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}
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function payCost(buildingId) {
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gold -= bld.getBuildingCost(buildingId, "gold");
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wood -= bld.getBuildingCost(buildingId, "wood");
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}
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function refundApprox(buildingId) {
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// 拆除返还一半（演示用，非正式经济）
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gold += (bld.getBuildingCost(buildingId, "gold") / 2).tointeger();
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wood += (bld.getBuildingCost(buildingId, "wood") / 2).tointeger();
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}
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function updateGhostFromMouse() {
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local mx = mouse.getX();
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local my = mouse.getY();
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ghost.setFromWorld(world, mx, my);
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ghost.validate(world);
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if (ghost.getCellX() != hiddenGhostCellX || ghost.getCellY() != hiddenGhostCellY) {
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hiddenGhostCellX = -999;
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hiddenGhostCellY = -999;
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}
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}
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function mouseOnMap() {
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local mx = mouse.getX();
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local my = mouse.getY();
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return mx >= mapOriginX && my >= mapOriginY &&
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mx < mapOriginX + gridW * cellPx &&
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my < mapOriginY + gridH * cellPx;
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}
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function tryPlace() {
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updateGhostFromMouse();
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tryPlaceGhost();
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}
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function tryPlaceGhost() {
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local id = currentBuildingId();
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local afford = canAfford(id);
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if (afford != "") {
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pushLog("资源不足：" + afford);
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return;
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}
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if (!ghost.isValid()) {
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pushLog("无法放置：" + ghost.getReason());
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return;
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}
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local inst = world.placeGhost(ghost);
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if (inst <= 0) {
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pushLog("放置失败。");
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return;
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}
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payCost(id);
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// Keep the freshly placed cells visible. Otherwise the now-invalid overlap
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// ghost sits on top of the building until the pointer moves and makes a
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// successful click look as if nothing changed.
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hiddenGhostCellX = ghost.getCellX();
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hiddenGhostCellY = ghost.getCellY();
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pushLog("已建造 " + bld.getBuildingDisplayName(id) + " #" + inst +
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" @(" + ghost.getCellX() + "," + ghost.getCellY() + ")");
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}
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function tryPlaceCell(cx, cy) {
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ghost.setFromWorld(world, mapOriginX + (cx + 0.5) * cellPx,
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mapOriginY + (cy + 0.5) * cellPx);
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ghost.validate(world);
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tryPlaceGhost();
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}
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function tryRemove() {
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local mx = mouse.getX();
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local my = mouse.getY();
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local cx = world.worldToCellX(mx);
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local cy = world.worldToCellY(my);
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local occ = world.getOccupant(cx, cy);
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if (occ <= 0) {
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pushLog("此处没有建筑。");
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return;
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}
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local bid = world.getBuildingId(occ);
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if (world.removeBuilding(occ)) {
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refundApprox(bid);
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pushLog("拆除 " + bld.getBuildingDisplayName(bid) + " #" + occ + "（半价返还）");
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}
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}
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function footprintCells(buildingId, ox, oy, rot, sink) {
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// 与引擎 cardinal 旋转约定一致，便于绘制鬼影（不依赖私有 API）
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local w = bld.getBuildingFootprintW(buildingId);
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local h = bld.getBuildingFootprintH(buildingId);
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local mask = null;
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// barn.l 已知掩码；其它视为实心。旋转后枚举局部格。
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local q = ((rot / 90.0 + 0.5).tointeger()) % 4;
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if (q < 0) q += 4;
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for (local ly = 0; ly < h; ly += 1) {
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for (local lx = 0; lx < w; lx += 1) {
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local solid = true;
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if (buildingId == "barn.l") {
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// mask [1,1,1,0] row-major 2x2
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local idx = ly * w + lx;
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solid = (idx != 3);
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}
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if (!solid) continue;
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local rx = lx;
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local ry = ly;
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if (q == 1) { rx = ly; ry = w - 1 - lx; }
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else if (q == 2) { rx = w - 1 - lx; ry = h - 1 - ly; }
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else if (q == 3) { rx = h - 1 - ly; ry = lx; }
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sink.push([ox + rx, oy + ry]);
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}
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}
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}
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function refreshHud() {
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if (!uiBuilt) return;
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ui.select("hud");
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local name = bld.getBuildingDisplayName(currentBuildingId());
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local costG = bld.getBuildingCost(currentBuildingId(), "gold");
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local costW = bld.getBuildingCost(currentBuildingId(), "wood");
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local ghostInfo = ghost.isValid() ? "可放置" : ("不可：" + ghost.getReason());
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ui.setText("stats",
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"金币 " + gold + " 木材 " + wood +
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" 建筑数 " + world.getBuildingCount() +
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" 当前 [" + (paletteIndex + 1) + "] " + name +
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" 花费 G" + costG + "/W" + costW +
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" 旋转 " + ghost.getRotationDeg().tointeger() + "° " + ghostInfo);
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ui.setText("help",
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"快捷键：1-5 选择 · R 旋转 · 左键建造 · 右键拆除 · T 网格 · Space 重置");
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local logText = "";
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foreach (line in logLines)
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logText += line + "\n";
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ui.setText("log", logText);
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}
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function mountMapCells(remount) {
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ui.beginBuild();
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ui.beginWindow("", "map-input-root");
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for (local y = 0; y < gridH; y += 1) {
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for (local x = 0; x < gridW; x += 1) {
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ui.imageButton("cell-" + x + "-" + y, cellPx, cellPx);
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ui.setItemAbsolute(0.0, 0.0, x * cellPx, y * cellPx);
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}
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}
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ui.end();
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if (remount) ui.remountBuildAs("map-input");
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else ui.mountBuildAs("map-input");
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ui.select("map-input");
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ui.setHostOverlay(true);
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ui.setHostOverlayAlpha(0.0);
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ui.setHostMovable(false);
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ui.setHostResizable(false);
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ui.setHostPos(mapOriginX, mapOriginY, 0.0, 0.0);
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ui.setHostSize(gridW * cellPx, gridH * cellPx);
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for (local y = 0; y < gridH; y += 1)
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for (local x = 0; x < gridW; x += 1)
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ui.setImageTint("cell-" + x + "-" + y, 1.0, 1.0, 1.0, 0.001);
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}
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eve_init = function() {
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print("examples/building: town placement sandbox ready\n");
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gfx.setBackgroundColor(0.055, 0.075, 0.065, 1.0);
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loadTownArt();
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if (bld == null) {
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bld = eve.Building();
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registerBuildings();
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resetTown();
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} else {
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registerBuildings();
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if (world == null || ghost == null)
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resetTown();
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}
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if (!uiBuilt) {
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ui.beginBuild();
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ui.beginWindow("建造面板", "root");
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ui.textWrapped("", sidebarWidth - 44.0, "stats");
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ui.separator("palette-separator");
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ui.text("选择建筑", "palette-title");
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ui.button("1 石板路", "select-road");
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ui.button("2 石屋", "select-house");
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ui.button("3 摊位（需邻路）", "select-stall");
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ui.button("4 码头（仅水域）", "select-dock");
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ui.button("5 L 形仓", "select-barn");
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ui.separator("action-separator");
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ui.beginRow("actions", 10.0);
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ui.button("旋转 90°", "rotate");
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ui.button("重置城镇", "reset");
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ui.end();
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ui.textWrapped("", sidebarWidth - 44.0, "help");
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ui.separator("log-separator");
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ui.text("操作记录", "log-title");
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ui.text("", "log");
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ui.end();
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ui.mountBuildAs("hud");
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ui.select("hud");
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ui.setHostOverlay(false);
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ui.setHostPos(sidebarX, 20.0, 0.0, 0.0);
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ui.setHostSize(sidebarWidth, 756.0);
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mountMapCells(false);
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uiBuilt = true;
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}
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refreshHud();
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};
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eve_reload <- function() {
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loadTownArt();
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registerBuildings();
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mountMapCells(true);
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};
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eve_update = function(dt) {
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if (world == null || ghost == null) return;
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waterTime += dt;
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if (keyPressed("t")) showGrid = !showGrid;
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local clicked = ui.consumeClick();
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while (clicked != "") {
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if (clicked == "hud/select-road") selectPalette(0);
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else if (clicked == "hud/select-house") selectPalette(1);
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else if (clicked == "hud/select-stall") selectPalette(2);
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else if (clicked == "hud/select-dock") selectPalette(3);
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else if (clicked == "hud/select-barn") selectPalette(4);
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else if (clicked == "hud/rotate") {
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ghost.rotateBy(90.0);
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hiddenGhostCellX = -999;
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hiddenGhostCellY = -999;
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pushLog("旋转 → " + ghost.getRotationDeg().tointeger() + "°");
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} else if (clicked == "hud/reset") {
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resetTown();
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} else {
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for (local y = 0; y < gridH; y += 1)
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for (local x = 0; x < gridW; x += 1)
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if (clicked == "map-input/cell-" + x + "-" + y)
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tryPlaceCell(x, y);
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}
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clicked = ui.consumeClick();
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}
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if (keyPressed("1")) selectPalette(0);
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if (keyPressed("2")) selectPalette(1);
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if (keyPressed("3")) selectPalette(2);
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if (keyPressed("4")) selectPalette(3);
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if (keyPressed("5")) selectPalette(4);
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if (keyPressed("r") || keyPressed("R")) {
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ghost.rotateBy(90.0);
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hiddenGhostCellX = -999;
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hiddenGhostCellY = -999;
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pushLog("旋转 → " + ghost.getRotationDeg().tointeger() + "°");
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}
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if (keyPressed("space") || keyPressed("Space")) {
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resetTown();
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refreshHud();
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return;
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}
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updateGhostFromMouse();
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// The map-input host is an overlay for semantic automation and therefore
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// intentionally does not receive native pointer input. Keep the actual
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// player interaction on the mouse path, bounded to the map so sidebar
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// clicks cannot place buildings behind the panel.
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if (mousePressed(1) && mouseOnMap())
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tryPlace();
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if (mousePressed(2) && mouseOnMap())
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tryRemove();
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refreshHud();
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};
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eve_render = function() {
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gfx.clear();
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if (world == null) {
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ui.beginFrameAndRender();
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return;
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}
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drawTown();
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ui.beginFrameAndRender();
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};
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