doric-engine/Making a Wargame.ipynb

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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"We want to make a turn-based strategy game, based on a **hexagonal grid**.\n",
"\n",
"Wait, how do we even lay out a hexagonal grid in kivy?\n",
"\n",
" http://playtechs.blogspot.com/2007/04/hex-grids.html\n",
" \n",
" Also\n",
" \n",
" http://gamedev.stackexchange.com/questions/15881/hexagonal-grid-tiles-tutorials\n",
" "
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Ignore device orientation."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Let's lay out a grid. First we need to draw hexagons. Clone gamecamp. change the object names.\n",
"Can we lay out the basic screen?"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": false
},
"outputs": [],
"source": [
"%%file strategygame.kv\n",
"\n",
"#:include debug.kv\n",
"\n",
"<StrategyGame>:\n",
" BoxLayout:\n",
" orientation: 'horizontal'\n",
" DebugLabel:\n",
" text: 'Main map'\n",
" size_hint: .75, 1\n",
" BoxLayout:\n",
" orientation: 'vertical'\n",
" size_hint: .25, 1\n",
" DebugLabel:\n",
" text: 'status'\n",
" size_hint: 1, .66\n",
" DebugLabel:\n",
" text: 'mini-map'\n",
" size_hint: 1, .33\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": false
},
"outputs": [],
"source": [
"%%file main.py\n",
"from kivy.app import App\n",
"from kivy.uix.floatlayout import FloatLayout\n",
"\n",
"\n",
"class StrategyGame(FloatLayout):\n",
" pass\n",
"\n",
"\n",
"class StrategyGameApp(App):\n",
" def build(self):\n",
" return StrategyGame()\n",
"\n",
"if __name__ == '__main__':\n",
" StrategyGameApp().run()\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
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{
"cell_type": "code",
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"metadata": {
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"outputs": [],
"source": [
"#!python main.py\n"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Let's make a gridlayout in the game area, and give it a label so we can refer to it from our code. We are going to build a rectangular grid"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"%%file strategygame.kv\n",
"\n",
"#:include debug.kv\n",
"\n",
"<StrategyGame>:\n",
" main_map: _main_map\n",
" BoxLayout:\n",
" orientation: 'horizontal'\n",
" GridLayout:\n",
" id: _main_map\n",
" cols: 10\n",
" size_hint: .75, 1\n",
" BoxLayout:\n",
" orientation: 'vertical'\n",
" size_hint: .25, 1\n",
" DebugLabel:\n",
" text: 'status'\n",
" size_hint: 1, .66\n",
" DebugLabel:\n",
" text: 'mini-map'\n",
" size_hint: 1, .33\n"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Now let's hook to that from code. We will do this in `__init__` in our main StrategyGame class. Let's make a loop to add buttons to the root widget. We will use properties in the kv file to determine how many rows/cols to add. We will also need to refer to various objects in the widget hierarchy in the code."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"You can refer to the top-level object (non-indented) as `root` in the kv file, but it we want to refer to conveniently elsewhere in the code, we need to use an id.\n",
"\n",
"`id: _game`\n",
"\n",
"and then from any widget we want to refer to it, we do a \n",
"\n",
"`game: _game`\n",
"\n",
"We'll use this to access the number of regions to layout in the grid via `map_cols` and `map_rows` from the main game widget. \n",
"\n",
"Fill in grids: it fills it in by default, left to right, top to bottom, and give them coordinate references. "
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"%%file strategygame.kv\n",
"\n",
"#:include debug.kv\n",
"\n",
"<StrategyGame>:\n",
" id: _game\n",
" main_map: _main_map\n",
" map_rows: 10\n",
" map_cols: 10\n",
" BoxLayout:\n",
" orientation: 'horizontal'\n",
" GridLayout:\n",
" id: _main_map\n",
" game: _game\n",
" cols: root.map_cols\n",
" size_hint: .75, 1\n",
" BoxLayout:\n",
" orientation: 'vertical'\n",
" size_hint: .25, 1\n",
" DebugLabel:\n",
" text: 'status'\n",
" size_hint: 1, .66\n",
" DebugLabel:\n",
" text: 'mini-map'\n",
" size_hint: 1, .33\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"# %load main.py\n",
"from kivy.app import App\n",
"from kivy import properties\n",
"from kivy.uix import button\n",
"from kivy.uix.floatlayout import FloatLayout\n",
"\n",
"\n",
"class StrategyGame(FloatLayout):\n",
" main_map = properties.ObjectProperty(None)\n",
" map_rows = properties.NumericProperty(0)\n",
" map_cols = properties.NumericProperty(0)\n",
"\n",
" def __init__(self, **kwargs):\n",
" super(StrategyGame, self).__init__(**kwargs)\n",
"\n",
" number_of_regions = self.map_rows * self.map_cols\n",
" for region in xrange(0, number_of_regions):\n",
" row = region / self.map_cols\n",
" col = region % self.map_cols\n",
" self.main_map.add_widget(button.Button(text='({}, {})'.format(row, col)))\n",
"\n",
"\n",
"class StrategyGameApp(App):\n",
" def build(self):\n",
" return StrategyGame()\n",
"\n",
"if __name__ == '__main__':\n",
" StrategyGameApp().run()\n"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"We draw alternating rows with the patterns:\n",
"```\n",
"/ \\\n",
"| |\n",
"| |\n",
"```\n",
"and\n",
"```\n",
"\\ /\n",
" |\n",
" |\n",
"```"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"%%file strategygame.kv\n",
"\n",
"#:include debug.kv\n",
"\n",
"<StrategyGame>:\n",
" id: _game\n",
" main_map: _main_map\n",
" map_rows: 10\n",
" map_cols: 10\n",
" BoxLayout:\n",
" orientation: 'horizontal'\n",
" GridLayout:\n",
" id: _main_map\n",
" game: _game\n",
" cols: root.map_cols\n",
" size_hint: .75, 1\n",
" BoxLayout:\n",
" orientation: 'vertical'\n",
" size_hint: .25, 1\n",
" DebugLabel:\n",
" text: 'status'\n",
" size_hint: 1, .66\n",
" DebugLabel:\n",
" text: 'mini-map'\n",
" size_hint: 1, .33\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"%%file main.py\n",
"from kivy.app import App\n",
"from kivy import properties\n",
"from kivy.uix import button\n",
"from kivy.uix.floatlayout import FloatLayout\n",
"\n",
"\n",
"class StrategyGame(FloatLayout):\n",
" main_map = properties.ObjectProperty(None)\n",
" map_rows = properties.NumericProperty(0)\n",
" map_cols = properties.NumericProperty(0)\n",
"\n",
" def __init__(self, **kwargs):\n",
" super(StrategyGame, self).__init__(**kwargs)\n",
"\n",
" number_of_regions = self.map_rows * self.map_cols\n",
" for region in xrange(0, number_of_regions):\n",
" row = region / self.map_cols\n",
" col = region % self.map_cols\n",
" self.main_map.add_widget(button.Button(text='({}, {})'.format(row, col)))\n",
"\n",
"\n",
"class StrategyGameApp(App):\n",
" def build(self):\n",
" return StrategyGame()\n",
"\n",
"if __name__ == '__main__':\n",
" StrategyGameApp().run()\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
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"source": []
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
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"source": []
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Wait, that doesn't draw where we think it should.'"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"%%file main.py\n",
"import collections\n",
"\n",
"from kivy.app import App\n",
"from kivy import properties\n",
"from kivy import graphics\n",
"from kivy.uix import label\n",
"from kivy.uix.floatlayout import FloatLayout\n",
"\n",
"\n",
"MapCoords = collections.namedtuple('MapCoords', ['row', 'col'])\n",
"\n",
"\n",
"class StrategyGame(FloatLayout):\n",
" main_map = properties.ObjectProperty(None)\n",
" map_rows = properties.NumericProperty(0)\n",
" map_cols = properties.NumericProperty(0)\n",
"\n",
" def __init__(self, **kwargs):\n",
" super(StrategyGame, self).__init__(**kwargs)\n",
"\n",
" number_of_regions = self.map_rows * self.map_cols\n",
" for region in xrange(0, number_of_regions):\n",
" row = region / self.map_cols\n",
" col = region % self.map_cols\n",
" self.main_map.add_widget(HexMapCell(row=row, col=col))\n",
"\n",
"\n",
"class HexMapCell(label.Label):\n",
" def __init__(self, row=0, col=0, **kwargs):\n",
" self.region_in_map = MapCoords(row, col)\n",
" super(HexMapCell, self).__init__(**kwargs)\n",
" self.draw_hex_edge()\n",
"\n",
" def draw_hex_edge(self):\n",
" edge = ''\n",
" if self.region_in_map.col % 2 == 0:\n",
" row_mod = self.region_in_map.row % 6\n",
" if row_mod == 0:\n",
" edge = 'BU'\n",
" with self.canvas:\n",
" graphics.Color(1, 1, 1, 1)\n",
" graphics.Line(points=[self.x, self.y, self.width + self.x, self.height + self.y])\n",
" elif row_mod in (1, 2):\n",
" edge = 'L '\n",
" elif row_mod == 3:\n",
" edge = 'TD'\n",
" elif row_mod in (4, 5):\n",
" edge = ' R'\n",
" else:\n",
" row_mod = self.region_in_map.row % 6\n",
" if row_mod == 0:\n",
" edge = 'TD'\n",
" elif row_mod in (1, 2):\n",
" edge = ' R'\n",
" elif row_mod == 3:\n",
" edge = 'BU'\n",
" elif row_mod in (4, 5):\n",
" edge = 'L '\n",
"\n",
" self.text = edge\n",
"\n",
"class StrategyGameApp(App):\n",
" def build(self):\n",
" return StrategyGame()\n",
"\n",
"if __name__ == '__main__':\n",
" StrategyGameApp().run()\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": false
},
"outputs": [],
"source": [
"%%file main.py\n",
"from kivy.app import App\n",
"from kivy.uix.gridlayout import GridLayout\n",
"from kivy.lang import Builder\n",
"from kivy.properties import NumericProperty\n",
"\n",
"class HelloWorld(GridLayout):\n",
" cols = NumericProperty(4)\n",
" def __init__(self, **kw):\n",
" super(HelloWorld, self).__init__(**kw)\n",
" self.add_widget(self.BU())\n",
" self.add_widget(self.TD())\n",
" self.add_widget(self.BU())\n",
" self.add_widget(self.TD())\n",
"\n",
" def BU(self):\n",
" return Builder.load_string('''\n",
"Label:\n",
" canvas:\n",
" Color:\n",
" rgba: (1,1,1,1)\n",
" Line:\n",
" points: (self.x, self.y, self.right, self.top)\n",
" width: 2''')\n",
"\n",
" def TD(self):\n",
" return Builder.load_string('''\n",
"Label:\n",
" canvas:\n",
" Color:\n",
" rgba: (1,1,1,1)\n",
" Line:\n",
" points: (self.x, self.top, self.right, self.y)\n",
" width: 2''')\n",
"\n",
" def L(self):\n",
" return Builder.load_string('''\n",
"Label:\n",
" canvas:\n",
" Color:\n",
" rgba: (1,1,1,1)\n",
" Line:\n",
" points: (self.x, self.y, self.x, self.top)\n",
" width: 2''')\n",
"\n",
" def R(self):\n",
" return Builder.load_string('''\n",
"Label:\n",
" canvas:\n",
" Color:\n",
" rgba: (1,1,1,1)\n",
" Line:\n",
" points: (self.right, self.y, self.right, self.top)\n",
" width: 2''')\n",
"\n",
"\n",
"class HelloWorldApp(App):\n",
" def build(self):\n",
" return HelloWorld()\n",
"\n",
"if __name__ == '__main__':\n",
" HelloWorldApp().run()\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"# %load strategygame.kv\n",
"\n",
"#:include debug.kv\n",
"\n",
"<StrategyGame>:\n",
" id: _game\n",
" main_map: _main_map\n",
" map_rows: 10\n",
" map_cols: 10\n",
" BoxLayout:\n",
" orientation: 'horizontal'\n",
" GridLayout:\n",
" id: _main_map\n",
" game: _game\n",
" cols: root.map_cols\n",
" size_hint: .75, 1\n",
" BoxLayout:\n",
" orientation: 'vertical'\n",
" size_hint: .25, 1\n",
" DebugLabel:\n",
" text: 'status'\n",
" size_hint: 1, .66\n",
" DebugLabel:\n",
" text: 'mini-map'\n",
" size_hint: 1, .33\n"
]
},
{
"cell_type": "markdown",
"metadata": {
"collapsed": true
},
"source": [
"## Trying to draw the hexmap\n",
"\n",
"We tried adding the ability to style our widgets for to draw the Hexmap using lines like this\n",
"\n",
" BU: /\n",
" TD: \\\n",
" L: |\n",
" R: |\n",
"We get hexs now, but we need to figure out how to do the aspect ratio properly now...for a spiky top, we need each grid widget to have aspec ratio $$\\sqrt{3}\\cdot height = width$$"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"%%file strategygame.kv\n",
"\n",
"#:include debug.kv\n",
"\n",
"<StrategyGame>:\n",
" id: _game\n",
" main_map: _main_map\n",
" map_rows: 10\n",
" map_cols: 10\n",
" BoxLayout:\n",
" orientation: 'horizontal'\n",
" GridLayout:\n",
" id: _main_map\n",
" game: _game\n",
" cols: root.map_cols\n",
" size_hint: .75, 1\n",
" BoxLayout:\n",
" orientation: 'vertical'\n",
" size_hint: .25, 1\n",
" DebugLabel:\n",
" text: 'status'\n",
" size_hint: 1, .66\n",
" DebugLabel:\n",
" text: 'mini-map'\n",
" size_hint: 1, .33\n",
"\n",
"<BU>:\n",
" canvas:\n",
" Color:\n",
" rgba: (1,1,1,1)\n",
" Line:\n",
" points: (self.x, self.y, self.right, self.top)\n",
" width: 2\n",
"<TD>:\n",
" canvas:\n",
" Color:\n",
" rgba: (1,1,1,1)\n",
" Line:\n",
" points: (self.x, self.top, self.right, self.y)\n",
" width: 2\n",
"<L>:\n",
" canvas:\n",
" Color:\n",
" rgba: (1,1,1,1)\n",
" Line:\n",
" points: (self.x, self.y, self.x, self.top)\n",
" width: 2\n",
"<R>:\n",
" canvas:\n",
" Color:\n",
" rgba: (1,1,1,1)\n",
" Line:\n",
" points: (self.right, self.y, self.right, self.top)\n",
" width: 2\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": false
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"source": [
"%%file main.py\n",
"import collections\n",
"\n",
"from kivy.app import App\n",
"from kivy import properties\n",
"from kivy import graphics\n",
"from kivy.uix import label\n",
"from kivy.uix.floatlayout import FloatLayout\n",
"import math\n",
"\n",
"MapCoords = collections.namedtuple('MapCoords', ['row', 'col'])\n",
"\n",
"\n",
"class StrategyGame(FloatLayout):\n",
" main_map = properties.ObjectProperty(None)\n",
" map_rows = properties.NumericProperty(0)\n",
" map_cols = properties.NumericProperty(0)\n",
"\n",
" def __init__(self, **kwargs):\n",
" super(StrategyGame, self).__init__(**kwargs)\n",
"\n",
" number_of_regions = self.map_rows * self.map_cols\n",
" for region in xrange(0, number_of_regions):\n",
" row = region / self.map_cols\n",
" col = region % self.map_cols\n",
" self.main_map.add_widget(self.pick_hex_cell(row=row, col=col))\n",
"\n",
"\n",
" def pick_hex_cell(self, row, col):\n",
" row_mod = row % 6\n",
" if col % 2 == 0:\n",
" if row_mod == 0:\n",
" return BU()\n",
" elif row_mod in (1, 2):\n",
" return L()\n",
" elif row_mod == 3:\n",
" return TD()\n",
" elif row_mod in (4, 5):\n",
" return R()\n",
" else:\n",
" if row_mod == 0:\n",
" return TD()\n",
" elif row_mod in (1, 2):\n",
" return R()\n",
" elif row_mod == 3:\n",
" return BU()\n",
" elif row_mod in (4, 5):\n",
" return L()\n",
"\n",
"\n",
"class HexMapCell(label.Label):\n",
" def __init__(self, row=0, col=0, **kwargs):\n",
" self.region_in_map = MapCoords(row, col)\n",
" super(HexMapCell, self).__init__(**kwargs)\n",
"\n",
"class BU(HexMapCell):\n",
" pass\n",
"class TD(HexMapCell):\n",
" pass\n",
"class L(HexMapCell):\n",
" pass\n",
"class R(HexMapCell):\n",
" pass\n",
"\n",
"\n",
"class StrategyGameApp(App):\n",
" def build(self):\n",
" return StrategyGame()\n",
"\n",
"if __name__ == '__main__':\n",
" StrategyGameApp().run()\n"
]
},
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