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First person gamepad camera for Android (move with LT, look around with RT)

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This commit is contained in:
saschawillems 2016-06-20 22:08:50 +02:00
parent d8e362cc8e
commit 2e101fdd1e
3 changed files with 104 additions and 36 deletions
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65
base/camera.hpp
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@ -6,7 +6,6 @@
* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
*/
#define GLM_FORCE_RADIANS
#define GLM_FORCE_DEPTH_ZERO_TO_ONE
#include <glm/glm.hpp>
@ -133,4 +132,68 @@ public:
}
};
// Update camera passing separate axis data (gamepad)
// Returns true if view or position has been changed
bool updatePad(glm::vec2 axisLeft, glm::vec2 axisRight, float deltaTime)
{
bool retVal = false;
if (type == CameraType::firstperson)
{
// Use the common console thumbstick layout
// Left = view, right = move
const float deadZone = 0.0015f;
const float range = 1.0f - deadZone;
glm::vec3 camFront;
camFront.x = -cos(glm::radians(rotation.x)) * sin(glm::radians(rotation.y));
camFront.y = sin(glm::radians(rotation.x));
camFront.z = cos(glm::radians(rotation.x)) * cos(glm::radians(rotation.y));
camFront = glm::normalize(camFront);
float moveSpeed = deltaTime * movementSpeed * 2.0f;
float rotSpeed = deltaTime * 50.0f;
// Move
if (fabsf(axisLeft.y) > deadZone)
{
float pos = (fabsf(axisLeft.y) - deadZone) / range;
position -= camFront * pos * ((axisLeft.y < 0.0f) ? -1.0f : 1.0f) * moveSpeed;
retVal = true;
}
if (fabsf(axisLeft.x) > deadZone)
{
float pos = (fabsf(axisLeft.x) - deadZone) / range;
position += glm::normalize(glm::cross(camFront, glm::vec3(0.0f, 1.0f, 0.0f))) * pos * ((axisLeft.x < 0.0f) ? -1.0f : 1.0f) * moveSpeed;
retVal = true;
}
// Rotate
if (fabsf(axisRight.x) > deadZone)
{
float pos = (fabsf(axisRight.x) - deadZone) / range;
rotation.y += pos * ((axisRight.x < 0.0f) ? -1.0f : 1.0f) * rotSpeed;
retVal = true;
}
if (fabsf(axisRight.y) > deadZone)
{
float pos = (fabsf(axisRight.y) - deadZone) / range;
rotation.x -= pos * ((axisRight.y < 0.0f) ? -1.0f : 1.0f) * rotSpeed;
retVal = true;
}
}
else
{
// todo: move code from example base class for look-at
}
if (retVal)
{
updateViewMatrix();
}
return retVal;
}
};