Assignment 01 and Assignment 02

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/

.vscode/launch.json

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+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Python: Current File",
+            "type": "python",
+            "request": "launch",
+            "program": "${file}",
+            "console": "integratedTerminal"
+        },
+        {
+            "name": "2D Game",
+            "type": "python",
+            "request": "launch",
+            "program": "a02_2d-game/main.py",
+            "console": "integratedTerminal"
+        }
+    ]
+}

LICENSE

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+MIT License
+
+Copyright (c) 2020 xFrednet
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

a01/entities.py

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+import glm
+import pygame
+import OpenGL.GL as gl
+
+class Entity:
+    def __init__(
+            self, 
+            position = glm.vec2(0, 0),
+            color = glm.vec3(0.0, 0.0, 0.0),
+            size = 10
+        ):
+        self.position = position
+        self.color = color
+        self.size = size
+
+    def update(self, _delta):
+        pass
+
+    def draw(self):
+        step = self.size / 2
+
+        # 0      3---5
+        # | \      \ |
+        # 1---2      4
+
+        gl.glColor3f(self.color.x, self.color.y, self.color.z)
+
+        gl.glBegin(gl.GL_TRIANGLES)
+        gl.glVertex2f(self.position.x - step, self.position.y - step)
+        gl.glVertex2f(self.position.x - step, self.position.y + step)
+        gl.glVertex2f(self.position.x + step, self.position.y + step)
+
+        gl.glVertex2f(self.position.x - step, self.position.y - step)
+        gl.glVertex2f(self.position.x + step, self.position.y + step)
+        gl.glVertex2f(self.position.x + step, self.position.y - step)
+        gl.glEnd()
+
+class BouncingBall(Entity):
+    # Also known as ScreenSaverBall
+
+    def __init__(
+        self, 
+        area,
+        position = glm.vec2(0, 0), 
+        velocity = glm.vec2(0, 0),
+        color = glm.vec3(0.0, 0.0, 0.0),
+        size = 10):
+        Entity.__init__(
+            self, 
+            position=position,
+            color=color,
+            size=size)
+
+        self.velocity = velocity
+        self.area = area
+
+    def update(self, delta):
+        self.position = self.position + self.velocity * delta
+
+        halve_size = self.size / 2
+        if ((self.position.x - halve_size) < 0 or self.position.x + halve_size >= self.area.x):
+            self.velocity.x *= -1
+        if ((self.position.y - halve_size) < 0 or self.position.y + halve_size>= self.area.y):
+            self.velocity.y *= -1
+
+class ControlledBall(Entity):
+    def __init__(
+        self, 
+        area,
+        position = glm.vec2(0.0, 0.0), 
+        speed = 100.0,
+        color = glm.vec3(0.0, 0.0, 0.0),
+        size = 10):
+        Entity.__init__(
+            self, 
+            position=position,
+            color=color,
+            size=size)
+
+        self.speed = speed
+        self.area = area
+
+    def update(self, delta):
+        keys = pygame.key.get_pressed()
+
+        movement = glm.vec2()
+        if keys[pygame.locals.K_LEFT]:
+            movement.x = -1.0
+        if keys[pygame.locals.K_RIGHT]:
+            movement.x = +1.0
+        if keys[pygame.locals.K_UP]:
+            movement.y = +1.0
+        if keys[pygame.locals.K_DOWN]:
+            movement.y = -1.0
+
+        glm.normalize(movement)
+
+        size_padding = glm.vec2(self.size / 2, self.size / 2)
+
+        self.position = self.position + (movement * self.speed * delta)
+        self.position = glm.clamp(self.position, size_padding, self.area- size_padding)

a01/main.py

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+import pygame
+from pygame.locals import *
+
+from OpenGL import GL as gl
+import OpenGL.GLU as glu
+
+import random
+
+import glm
+
+import entities
+from entities import BouncingBall
+from entities import ControlledBall
+
+BOUNCING_BALL_COUNT = 100
+CONTROLLED_BALL_COUNT = 100
+
+FPS = 60
+RESOLUTION = glm.vec2(800, 600)
+
+entities = []
+
+def init_game():
+    pygame.display.init()
+    pygame.display.set_mode((int(RESOLUTION.x), int(RESOLUTION.y)), DOUBLEBUF|OPENGL)
+    gl.glClearColor(0.1, 0.1, 0.1, 1.0)
+
+    for _ in range(0, BOUNCING_BALL_COUNT):
+        entities.append(
+            BouncingBall(
+                RESOLUTION,
+                position=glm.vec2(random.uniform(10.0, RESOLUTION.x - 10.0), random.uniform(10.0, RESOLUTION.y - 10.0)),
+                velocity=glm.vec2(random.uniform(-100.0, 100.0), random.uniform(-100.0, 100.0)),
+                color=glm.vec3(1.0, 0.0, 0.0)))
+
+    for _ in range(0, CONTROLLED_BALL_COUNT):
+        entities.append(
+            ControlledBall(
+                RESOLUTION,
+                position=glm.vec2(random.uniform(10.0, RESOLUTION.x - 10.0), random.uniform(10.0, RESOLUTION.y - 10.0)),
+                speed=100,
+                color=glm.vec3(0.0, 1.0, 0.0)))
+
+def update(delta):
+    for e in entities:
+        e.update(delta)
+
+def display():
+    gl.glClear(gl.GL_COLOR_BUFFER_BIT)
+
+    gl.glMatrixMode(gl.GL_PROJECTION)
+    gl.glLoadIdentity()
+
+    gl.glMatrixMode(gl.GL_MODELVIEW)
+    gl.glLoadIdentity()
+
+    gl.glViewport(0, 0, int(RESOLUTION.x), int(RESOLUTION.y))
+    glu.gluOrtho2D(0, int(RESOLUTION.x), 0, int(RESOLUTION.y))
+
+    for e in entities:
+        e.draw()
+
+    pygame.display.flip()
+
+def game_loop():
+
+    clock = pygame.time.Clock()
+    last_millis = pygame.time.get_ticks()
+
+    while True:
+        # Delta timing. See https://en.wikipedia.org/wiki/Delta_timing
+        # Trust me, this gets important in larger games
+        # Pygame implementation stolen from: https://stackoverflow.com/questions/24039804/pygame-current-time-millis-and-delta-time
+        millis = pygame.time.get_ticks()
+        delta = (millis - last_millis) / 1000.0
+        last_millis = millis
+
+        # Get events
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                pygame.quit()
+                quit(0)
+            elif event.type == pygame.KEYDOWN:
+                if event.key == K_ESCAPE:
+                    pygame.quit()
+                    quit(0)
+            elif event.type == pygame.locals.MOUSEBUTTONDOWN:
+                entities.append(
+                    BouncingBall(
+                        RESOLUTION,
+                        position=glm.vec2(float(event.pos[0]), RESOLUTION.y - float(event.pos[1])),
+                        velocity=glm.vec2(),
+                        color=glm.vec3(0.0, 0.0, 1.0)))
+
+        # Update
+        update(delta)
+        display()
+
+        clock.tick(FPS)
+
+if __name__ == "__main__":
+    init_game()
+    game_loop()

a01_without_pygame/__init__.py

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+from .shader_program import *
+from .vertex_buffer import *
+from .render_systems import *