40 lines
894 B
C++
40 lines
894 B
C++
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#include "OrbitingCamera.hpp"
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OrbitingCamera::OrbitingCamera(const glm::vec3& target, float distance, const glm::vec2& pitchRange) :
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target(target), distance(distance), pitchRange(pitchRange)
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{
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pitch = pitchRange.x + (pitchRange.y - pitchRange.x) / 2;
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yaw = 0.0f;
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}
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void OrbitingCamera::Pan(float amount)
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{
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yaw += amount;
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if (yaw < 0.0f || yaw >= 360.0f)
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yaw = 0.0f;
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CalculateMatrix();
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}
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void OrbitingCamera::Tilt(float amount)
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{
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pitch += amount;
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if (pitch < pitchRange.x)
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pitch = pitchRange.x;
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else if (pitch > pitchRange.y)
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pitch = pitchRange.y;
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CalculateMatrix();
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}
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void OrbitingCamera::CalculateMatrix()
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{
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glm::vec3 position = distance * glm::vec3(
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cos(glm::radians(yaw)) * sin(glm::radians(pitch)),
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cos(glm::radians(pitch)),
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sin(glm::radians(yaw)) * sin(glm::radians(pitch))
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);
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transformation = glm::lookAt(position, target, glm::vec3(0.0f, 1.0f, 0.0f));
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}
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