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import math |
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from gem import vector |
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from gem import matrix |
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from gem import quaternion |
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from ed2d import view |
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class Camera(object): |
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def __init__(self): |
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# Camera information |
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self.yAxis = vector.Vector(3, data=[0.0, 1.0, 0.0]) |
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self.position = vector.Vector(3) |
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self.rotation = quaternion.Quaternion() |
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self.sensitivity = 0.05 |
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self.aperature = 0 |
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# Camera modifiers |
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self.cameraRotation = matrix.Matrix(4) |
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self.cameraPosition = matrix.Matrix(4) |
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self.cameraTranslation = matrix.Matrix(4) |
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# These are required for rendering |
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self.perspectiveProj = matrix.Matrix(4) |
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self.orthographicProj = matrix.Matrix(4) |
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self.viewMatrix = matrix.Matrix(4) |
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self.viewMatrixInverse = matrix.Matrix(4) |
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# Camera will rotate around this point |
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self.originVisiblity = True |
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self.originPosition = [0.0, 0.0, 0.0] |
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# Arcball propertise |
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self.cur_x = 0 |
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self.cur_y = 0 |
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self.arcball_on = False |
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# Initialize view mode |
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self.view = view.View() |
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# Modes |
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self.MODE_ORTHOGRAPHIC = 1 |
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self.MODE_PERSPECTIVE = 2 |
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self.currentMode = 0 |
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def perspectiveProjection(self, fov, aspect, znear, zfar): |
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self.perspectiveProj = matrix.perspective(fov, aspect, znear, zfar) |
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self.view.new_projection('persp', self.perspectiveProj) |
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def orthographicProjection(self, left, right, bottom, top, znear, zfar): |
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self.orthographicProj = matrix.orthographic(left, right, bottom, top, znear, zfar) |
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self.view.new_projection('ortho', self.orthographicProj) |
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def set_program(self, mtype, program): |
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if mtype is 1: |
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self.currentMode = self.MODE_ORTHOGRAPHIC |
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self.view.register_shader('ortho', program) |
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elif mtype is 2: |
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self.currentMode = self.MODE_PERSPECTIVE |
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self.view.register_shader('persp', program) |
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else: |
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self.currentMode = 0 |
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return NotImplemented |
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def set_mode(self, mtype): |
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if mtype is 1: |
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self.currentMode = self.MODE_ORTHOGRAPHIC |
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self.view.set_projection('ortho', self.orthographicProj) |
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elif mtype is 2: |
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self.currentMode = self.MODE_PERSPECTIVE |
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self.view.set_projection('persp', self.perspectiveProj) |
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else: |
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self.currentMode = 0 |
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return NotImplemented |
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def calcViewMatrix(self): |
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self.cameraRotation = self.rotation.conjugate().toMatrix() |
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self.cameraPosition = self.position * -1.0 |
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self.cameraTranslation = matrix.Matrix(4).translate(self.cameraPosition) |
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self.viewMatrix = self.cameraTranslation * self.cameraRotation |
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self.viewMatrixInverse = self.viewMatrix.inverse() |
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def onKeys(self, keys, tick): |
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moveAmount = 0.5 * tick |
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if 'w' in keys: |
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self.move(self.rotation.getForward(), -moveAmount) |
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if 's' in keys: |
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self.move(self.rotation.getForward(), moveAmount) |
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if 'a' in keys: |
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self.move(self.rotation.getLeft(), moveAmount) |
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if 'd' in keys: |
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self.move(self.rotation.getRight(), moveAmount) |
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if 'q' in keys: |
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self.move(self.rotation.getUp(), moveAmount) |
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if 'e' in keys: |
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self.move(self.rotation.getUp(), -moveAmount) |
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if 'UP' in keys: |
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self.rotate(self.rotation.getRight(), moveAmount * 0.05) |
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if 'DOWN' in keys: |
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self.rotate(self.rotation.getRight(), -moveAmount * 0.05) |
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if 'LEFT' in keys: |
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self.rotate(self.rotation.getUp(), moveAmount * 0.05) |
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if 'RIGHT' in keys: |
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self.rotate(self.rotation.getUp(), -moveAmount * 0.05) |
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def onMouseMove(self, deltaX, deltaY, tick): |
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sensitivity = 0.5 |
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if deltaX != 0: |
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self.rotate(self.yAxis, math.radians(deltaX * sensitivity * tick)) |
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if deltaY != 0: |
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self.rotate(self.rotation.getRight(), math.radians(deltaY * sensitivity * tick)) |
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def rotate(self, axis, angle): |
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self.rotation = (quaternion.quat_from_axis_angle(axis, angle) * self.rotation).normalize() |
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129
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def move(self, direction, amount): |
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self.position = self.position + (direction * amount * self.sensitivity) |
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def setPosition(self, position): |
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self.position = position |
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135
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def getViewMatrix(self): |
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self.calcViewMatrix() |
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return self.viewMatrix |
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explosiveduck /
ed2d
