aboutsummaryrefslogtreecommitdiff
path: root/advtrains/trainhud.lua
blob: 3f7b797723a15dd260282322ce8556f84be0a5b6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
--trainhud.lua: holds all the code for train controlling

advtrains.hud = {}
advtrains.hhud = {}

minetest.register_on_leaveplayer(function(player)
advtrains.hud[player:get_player_name()] = nil
advtrains.hhud[player:get_player_name()] = nil
end)

local mletter={[1]="F", [-1]="R", [0]="N"}

function advtrains.on_control_change(pc, train, flip)
   	local maxspeed = train.max_speed or 10
	if pc.sneak then
		if pc.up then
			train.tarvelocity = maxspeed
		end
		if pc.down then
			train.tarvelocity = 0
		end
		if pc.left then
			train.tarvelocity = 4
		end
		if pc.right then
			train.tarvelocity = 8
		end
		--[[if pc.jump then
			train.brake = true
			--0: released, 1: brake and pressed, 2: released and brake, 3: pressed and brake
			if not train.brake_hold_state or train.brake_hold_state==0 then
				train.brake_hold_state = 1
			elseif train.brake_hold_state==2 then
				train.brake_hold_state = 3
			end
		elseif train.brake_hold_state==1 then
			train.brake_hold_state = 2
		elseif train.brake_hold_state==3 then
			train.brake = false
			train.brake_hold_state = 0
		end]]
		--shift+use:see wagons.lua
	else
		local act=false
		if pc.jump then
			train.ctrl_user = 1
			act=true
		end
		-- If atc command set, only "Jump" key can clear command. To prevent accidental control.
		if train.tarvelocity or train.atc_command then
			return
		end
		if pc.up then
		   train.ctrl_user=4
		   act=true
		end
		if pc.down then
			if train.velocity>0 then
				if pc.jump then
					train.ctrl_user = 0
				else
					train.ctrl_user = 2
				end
				act=true
			else
				advtrains.invert_train(train.id)
				advtrains.atc.train_reset_command(train)
			end
		end
		if pc.left then
			if train.door_open ~= 0 then
				train.door_open = 0
			else
				train.door_open = -1
			end
		end
		if pc.right then
			if train.door_open ~= 0 then
				train.door_open = 0
			else
				train.door_open = 1
			end
		end
		if not act then
			train.ctrl_user = nil
		end
	end
end
function advtrains.update_driver_hud(pname, train, flip, thud, ghud)
	local inside=train.text_inside or ""
	local ft = (thud or advtrains.hud.dtext)(train, flip)
	local ht, gs = (ghud or advtrains.hud.dgraphical)(train, flip)
	advtrains.set_trainhud(pname, inside.."\n"..ft, ht, gs)
end
function advtrains.clear_driver_hud(pname)
	advtrains.set_trainhud(pname, "")
end

function advtrains.set_trainhud(name, text, driver, gs)
	gs = gs or 110
	local hud = advtrains.hud[name]
	local player=minetest.get_player_by_name(name)
	if not player then
	   return
	end
	local driverhud = {
		hud_elem_type = "image",
		name = "ADVTRAINS_DRIVER",
		position = {x=0.5, y=1},
		offset = {x=0,y=-170},
		text = driver or "",
		alignment = {x=0,y=-1},
		scale = {x=1,y=1},}
	if not hud then
		hud = {["driver"]={}}
		advtrains.hud[name] = hud
		hud.id = player:hud_add({
			hud_elem_type = "text",
			name = "ADVTRAINS",
			number = 0xFFFFFF,
			position = {x=0.5, y=1},
			offset = {x=0, y=-190-gs},
			text = text,
			scale = {x=200, y=60},
			alignment = {x=0, y=-1},
		})
		hud.oldText=text
		hud.driver = player:hud_add(driverhud)
	else
		if hud.oldText ~= text then
			player:hud_change(hud.id, "text", text)
			player:hud_change(hud.id, "offset", {x=0, y=-190-gs})
			hud.oldText=text
		end
		if hud.driver then
			player:hud_change(hud.driver, "text", driver or "")
		elseif driver then
			hud.driver = player:hud_add(driverhud)
		end
	end
end

function advtrains.set_help_hud(name, text)
	local hud = advtrains.hhud[name]
	local player=minetest.get_player_by_name(name)
	if not player then
	   return
	end
	if not hud then
		hud = {}
		advtrains.hhud[name] = hud
		hud.id = player:hud_add({
			hud_elem_type = "text",
			name = "ADVTRAINS_HELP",
			number = 0xFFFFFF,
			position = {x=1, y=0.3},
			offset = {x=0, y=0},
			text = text,
			scale = {x=200, y=60},
			alignment = {x=1, y=0},
		})
		hud.oldText=text
		return
	elseif hud.oldText ~= text then
		player:hud_change(hud.id, "text", text)
		hud.oldText=text
	end
end

--train.lever:
--Speed control lever in train, for new train control system.
--[[
Value	Disp	Control	Meaning
0		BB		S+Space	Emergency Brake
1		B		Space	Normal Brake
2		-		S		Roll
3		o		<none>	Stay at speed
4		+		W		Accelerate
]]

function advtrains.hud.dtext(train, flip)
	local st = {}
	if train.debug then st = {train.debug} end

	st[#st+1] = attrans("Train ID: @1", train.id)
	
	if res and res == 0 then
		st[#st+1] = attrans("OVERRUN RED SIGNAL! Examine situation and reverse train to move again.")
	end
	
	if train.atc_command then
			st[#st+1] = string.format("ATC: %s%s", train.atc_delay and advtrains.abs_ceil(train.atc_delay).."s " or "", train.atc_command or "")
	end
	
	return table.concat(st, "\n")
end

function advtrains.hud.sevenseg(digit, x, y, w, h, m)
	local st = {}
	local sformat = string.format
	local f = "%d,%d=(advtrains_hud_bg.png^[resize\\:%dx%d"..(m and "^%s)" or ")")
	local segs = {
		{h, 0, w, h},
		{0, h, h, w},
		{w+h, h, h, w},
		{h, w+h, w, h},
		{0, w+2*h, h, w},
		{w+h, w+2*h, h, w},
		{h, 2*(w+h), w, h}}
	local trans = {
		[0] = {true, true, true, false, true, true, true},
		[1] = {false, false, true, false, false, true, false},
		[2] = {true, false, true, true, true, false, true},
		[3] = {true, false, true, true, false, true, true},
		[4] = {false, true, true, true, false, true, false},
		[5] = {true, true, false, true, false, true, true},
		[6] = {true, true, false, true, true, true, true},
		[7] = {true, false, true, false, false, true, false},
		[8] = {true, true, true, true, true, true, true},
		[9] = {true, true, true, true, false, true, true}}
	local ent = trans[digit or 10]
	if not ent then return end
	for i = 1, 7, 1 do
		if ent[i] then
			local s = segs[i]
			st[#st+1] = sformat(f, x+s[1], y+s[2], s[3], s[4], m)
		end
	end
	return table.concat(st,":")
end

function advtrains.hud.number(number, padding, x, y, w, h, margin, modifier)
	local st = {}
	local number = math.abs(math.floor(number))
	if not padding then
		if number == 0 then
			padding = 0
		else
			padding = math.floor(math.log10(number))
		end
	else
		padding = padding - 1
	end
	for i = padding, 0, -1 do
		st[#st+1] = advtrains.hud.sevenseg(math.floor(number/10^i)%10, x+(padding-i)*(w+2*h+margin), y, w, h, modifier)
	end
	return table.concat(st,":")
end

function advtrains.hud.leverof(train)
	if not train then return nil end
	local tlev=train.lever or 3
	if train.velocity==0 and not train.active_control then tlev=1 end
	if train.hud_lzb_effect_tmr then
		tlev=1
	end
	return tlev
end

function advtrains.hud.lever(lever, x, y, w1, w2, height)
	local sformat = string.format
	local hs = height/5
	local st = {
		sformat("%d,%d=(advtrains_hud_bg.png^[colorize\\:cyan^[resize\\:%dx%d)", x, y, w1, hs),
		sformat("%d,%d=(advtrains_hud_bg.png^[colorize\\:white^[resize\\:%dx%d)", x, y+hs, w1, hs),
		sformat("%d,%d=(advtrains_hud_bg.png^[colorize\\:orange^[resize\\:%dx%d)", x, y+hs*2, w1, hs*2),
		sformat("%d,%d=(advtrains_hud_bg.png^[colorize\\:red^[resize\\:%dx%d)", x, y+hs*4, w1, hs),
		sformat("%d,%d=(advtrains_hud_bg.png^[colorize\\:darkslategray^[resize\\:%dx%d)", x+(w2+w1)/2, y+(hs-w1)/2, w1, hs*4+2*w1),
		sformat("%d,%d=(advtrains_hud_bg.png^[colorize\\:gray^[resize\\:%dx%d)", x+w1, y+(4-lever)*hs, w2, hs),
	}
	return table.concat(st, ":")
end

function advtrains.hud.door(o, x, y, w, h, m)
	local sformat = string.format
	local dw = (w-m*2)/4
	local ww = w-(dw+m)*2
	local wh = h/2-m
	local st = {
		sformat("%d,%d=(advtrains_hud_bg.png^[resize\\:%dx%d^[colorize\\:white)", x+dw+m, y, ww, h),
		sformat("%d,%d=(advtrains_hud_bg.png^[resize\\:%dx%d)", x+dw+m*2, y+m, ww-2*m, wh),
		sformat("%d,%d=(advtrains_hud_bg.png^[resize\\:%dx%d^[colorize\\:%s)", x, y, dw, h, o==-1 and "white" or "darkslategray"),
		sformat("%d,%d=(advtrains_hud_bg.png^[resize\\:%dx%d)", x+m, y+m, dw-2*m, wh),
		sformat("%d,%d=(advtrains_hud_bg.png^[resize\\:%dx%d^[colorize\\:%s)", x+w-dw, y, dw, h, o==1 and "white" or "darkslategray"),
		sformat("%d,%d=(advtrains_hud_bg.png^[resize\\:%dx%d)", x+w-dw+m, y+m, dw-2*m, wh),
	}
	return table.concat(st, ":")
end

function advtrains.hud.dgraphical(train, flip)
	if not train then return "" end
	local sformat = string.format -- this appears to be faster than (...):format
	local sevenseg = advtrains.hud.sevenseg
	
	local max = train.max_speed or 10
	local res = train.speed_restriction
	local vel = advtrains.abs_ceil(train.velocity)
	local vel_kmh=advtrains.abs_ceil(advtrains.ms_to_kmh(train.velocity))
	
	local ht = {"[combine:440x110:0,0=(advtrains_hud_bg.png^[resize\\:440x110)"}
	if train.debug then st = {train.debug} end
	
	ht[#ht+1] = advtrains.hud.lever(advtrains.hud.leverof(train), 275, 10, 5, 30, 90)
	-- reverser
	ht[#ht+1] = sformat("245,10=(advtrains_hud_arrow.png^[transformFY%s)", flip and "" or "^[multiply\\:cyan")
	ht[#ht+1] = sformat("245,85=(advtrains_hud_arrow.png%s)", flip and "^[multiply\\:orange" or "")
	ht[#ht+1] = "250,35=(advtrains_hud_bg.png^[colorize\\:darkslategray^[resize\\:5x40)"
	ht[#ht+1] = sformat("240,%s=(advtrains_hud_bg.png^[resize\\:25x15^[colorize\\:gray)", flip and 65 or 30)
	-- train control/safety indication
	if train.tarvelocity or train.atc_command then
		ht[#ht+1] = "10,10=(advtrains_hud_atc.png^[resize\\:30x30^[multiply\\:cyan)"
	end
	if train.hud_lzb_effect_tmr then
		ht[#ht+1] = "50,10=(advtrains_hud_lzb.png^[resize\\:30x30^[multiply\\:red)"
	end
	if train.is_shunt then
		ht[#ht+1] = "90,10=(advtrains_hud_shunt.png^[resize\\:30x30^[multiply\\:orange)"
	end
	ht[#ht+1] = advtrains.hud.door(train.door_open, 170, 10, 60, 30, 2)
	-- speed indications
	ht[#ht+1] = advtrains.hud.number(vel, nil, 320, 10, 30, 10, 10, "[colorize\\:red\\:255")
	for i = 1, vel, 1 do
		ht[#ht+1] = sformat("%d,65=(advtrains_hud_bg.png^[resize\\:8x20^[colorize\\:white)", i*11-1)
	end
	for i = max+1, 20, 1 do
		ht[#ht+1] = sformat("%d,65=(advtrains_hud_bg.png^[resize\\:8x20^[colorize\\:darkslategray)", i*11-1)
	end
	if res and res > 0 then
		ht[#ht+1] = sformat("%d,60=(advtrains_hud_bg.png^[resize\\:3x30^[colorize\\:red\\:255)", 7+res*11)
	end
	if train.tarvelocity then
		ht[#ht+1] = sformat("%d,85=(advtrains_hud_arrow.png^[multiply\\:cyan^[transformFY^[makealpha\\:#000000)", 1+train.tarvelocity*11)
	end
	local lzb = train.lzb
	if lzb and lzb.checkpoints then
		local oc = lzb.checkpoints
		for i = 1, #oc do
			local spd = oc[i].speed
			spd = advtrains.speed.min(spd, train.speed_restriction)
			if spd == -1 then spd = nil end
			local c = not spd and "lime" or (type(spd) == "number" and (spd == 0) and "red" or "orange") or nil
			if c then
				ht[#ht+1] = sformat("130,10=(advtrains_hud_bg.png^[resize\\:30x5^[colorize\\:%s)",c)
				ht[#ht+1] = sformat("130,35=(advtrains_hud_bg.png^[resize\\:30x5^[colorize\\:%s)",c)
				if spd and spd~=0 then
					ht[#ht+1] = sformat("%d,50=(advtrains_hud_arrow.png^[multiply\\:red^[makealpha\\:#000000)", 1+spd*11) 
				end
				local floor = math.floor
				local dist = floor(((oc[i].index or train.index)-train.index))
				dist = math.max(0, math.min(999, dist))
				ht[#ht+1] = advtrains.hud.number(dist, 3, 130, 18, 4, 2, 3, "[colorize\\:"..c)
				break
			end
		end
	end
	
	return table.concat(ht,":"), 110
end

local texture = advtrains.hud.dgraphical { -- dummy train object to demonstrate the train hud
	max_speed = 15, speed_restriction = 15, velocity = 15, tarvelocity = 12,
	active_control = true, lever = 3, ctrl = {lzb = true}, is_shunt = true,
	door_open = 1, lzb = {checkpoints = {{speed=6, index=125.7}}}, index = 0,
	hud_lzb_effect_tmr = true,
}

minetest.register_node("advtrains:hud_demo",{
	description = "Train HUD demonstration",
	tiles = {texture},
	groups = {cracky = 3, not_in_creative_inventory = 1}
})

minetest.register_craft {
	output = "advtrains:hud_demo",
	recipe = {
		{"default:paper", "default:paper", "default:paper"},
		{"default:paper", "advtrains:trackworker", "default:paper"},
		{"default:paper", "default:paper", "default:paper"},
	}
}