karl
8f3d3dc7bf
Lots of hardcoded stuff, but interpolation between two points is working and displayed.
56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
//
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// Created by karl on 04.01.20.
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//
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#ifndef ECSGAME_TRANSFORM_H
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#define ECSGAME_TRANSFORM_H
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#include <glm/glm.hpp>
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#include <glm/gtc/matrix_transform.hpp>
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#include <glm/gtc/type_ptr.hpp>
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struct Transform {
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Transform() = default;
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glm::mat4 matrix = glm::mat4(1.0f); // Initialize as identity
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void translate(glm::vec3 offset) {
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matrix = glm::translate(matrix, offset);
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}
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void uniform_scale(float factor) {
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scale(glm::vec3(factor, factor, factor));
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}
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void scale(glm::vec3 factors) {
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matrix = glm::scale(matrix, factors);
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}
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void rotate(float degrees, glm::vec3 axis) {
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matrix = glm::rotate(matrix, glm::radians(degrees), axis);
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}
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void set_position(glm::vec3 position) {
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glm::vec3 difference = getPosition() - position;
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translate(-difference);
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}
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glm::vec3 getPosition() const {
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return matrix * glm::vec4(0.0f, 0.0f, 0.0f, 1.0f);
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}
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glm::vec3 forward() const {
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return matrix * glm::vec4(0.0, 0.0, -1.0, 0.0);
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}
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glm::vec3 up() const {
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return matrix * glm::vec4(0.0, 1.0, 0.0, 0.0);
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}
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glm::vec3 right() const {
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return matrix * glm::vec4(1.0, 0.0, 0.0, 0.0);
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}
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};
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#endif //ECSGAME_TRANSFORM_H
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